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Hydronic Heating
and Plumbing Products

A-50R

Service and support from the most
trusted name in the industry – Bell & Gossett®.
The Bell & Gossett name has always stood for uncompromising quality and dependability. That’s evident
in the way our products are built and backed by our outstanding customer service and support team.
Your local Bell & Gossett representative is available any time and is an experienced professional with
a wealth of technical expertise. In addition to expert system and product application assistance and
a wide product inventory warehoused locally, we offer our award-winning ESP-PLUS® software
selection program.
ESP-PLUS is a special set of Bell & Gossett software that helps you design fluid handling systems
accurately, effectively and quickly. You get fast, precise equipment selection, pump performance
curves, automatic calculations of payback and annual operating costs, equipment schedules,
submittals, specifications and more. ESP-PLUS includes:
• Bell & Gossett centrifugal pumps, packaged systems, hydronic specialties and heat exchangers
• Domestic® Pump condensate transfer equipment
• Hoffman Specialty® steam specialties

The Most Complete Line
of Hydronic Heating and
Plumbing Products.
All from a Single Source – Bell & Gossett.

Table of Contents		

Page Number

Pumps	
ecocirc Series Heating/Cooling Circulators ........................................ 4-5
ecocirc XL Series Heating/Cooling Circulators .................................... 6-8
ecocirc e3 Series Potable Water Pumps .............................................. 9
ecocirc wireless Potable Water Kit ....................................................... 10
autocirc Series Potable Water Pumps .................................................. 11
LS Condensate Removal Pump ........................................................... 12
ecocirc SC Solar Pump ..........................................................................13
NRF (Cast Iron, Maintenance-Free Wet Rotor) ............................... 14-15
NBF (Bronze, Maintenance-Free Wet Rotor) .................................. 16-17
SSF (Stainless Steel, Maintenance-Free Wet Rotor) ........................16-17
Series LR™ (Compact Maintenance-Free) ............................................17
Series PL™ (Maintenance-Free Dry Motor) ..........................................18
Three Piece – Oil Lubricated Series 100, HV, PR, 2”, 2-1/2” LD-3,
HD-3, PD-35, PD-37, PD-38, PD-40 ................................................19
Series 60 (In-Line Mounted) ...........................................................20-21
Pump Accessories	
Check-Trol™ Isolation Flow Control Flange .........................................22
Isolation and Companion Flanges .......................................................23
Controls	
ecocirc Series Timer ............................................................................. 24
NBF Aquastats and Timer .................................................................... 24
Relays
AZ-1A Snap-On Pump Control ............................................................. 25
ZONETROL™ Switching Relays ............................................................ 26
Valves	
Snap Zone Valve .................................................................................. 27
Circuit Setter® Plus ............................................................................. 28
Circuit Sentry™ Flo-Setter™ ................................................................29
Flow Control Valves Flo-ControlTM ........................................................ 30
Flow Control Valves HydrotrolTM ........................................................... 31
Differential Bypass Valves ................................................................... 31
Pressure Reducing Valves ................................................................... 32
ASME Safety Relief Valves .................................................................. 32
Monoflo® Fittings ............................................................................... 33
Air Separators	
IAS (Inline Air Separators) ................................................................... 33
EAS (Enhanced Air Separator) ............................................................. 34
EASB-JR (Enhanced Air Separator) ...................................................... 34
Hydronic Specialties	
Air Vents ..............................................................................................35
Vacuum Breaker .................................................................................. 35
Drain-O-Tank® Air Charger ................................................................. 35
Thermoflo® Balancer .......................................................................... 35
Primary/Secondary Header ..................................................................36
Tanks	
HFT Pre-Charged Hydronic Heating Tanks ........................................... 37
Plain Steel Compression Tanks ........................................................... 37
ATF (Airtrol® Tank Fittings) .................................................................. 37
PT Diaphragm Tanks ........................................................................... 38
WTX Diaphragm Tanks ........................................................................ 38
Tank Purge Valves ............................................................................... 39
Heat Exchangers
Brazed Plate Heat Exchangers ...................................................... 40-41
Wastewater Pumps
Submersible Sump Pumps - SC, SCS, SS, BSP, BBSP, 2WT........... 42-43

CIRCULATORS ecocirc® auto
Heating/Cooling Circulator
Description
ecocirc 19-14 auto are designed, with highly efficient electronically commutated
permanent magnet motor (ECM/PM Technology), specifically for hydronic systems.
Ideal for hydronic systems with zone or thermostatic valves, the ecocirc 19-14 auto can
be used as replacements for existing circulators with induction motors as well as new
construction as primary or zone circulators.
The ecocirc 19-14 auto has a proportional pressure control logic, which allows the pump to
slow down automatically as it approaches shut off condition (as the valve closes) then ramp
up when the demand increases (as the valve opens).

auto

It includes a step-less dial to adjust the speed to meet the system requirements.
Materials of Construction

Step-less speed dial with LED for
pump status and troubleshooting

Pump Body: Cast Iron
O-Ring: EPDM
Bearing: Carbon/Alumina Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM/PM
All Other Wetted Parts: Stainless Steel

Magnetically centered
spherical impeller/rotor

Operating Data
Maximum Working Pressure: 150 PSI (10 Bar)
Maximum Working Temperature: 203°F (95°C)
Minimum Working Temperature: 40°F (4°C)

High efficiency
ECM motor

Motor

Always easy to access. The screw ring design
results in a pump motor that can be rotated in
any position around the 360° circle. Therefore the
electrical connection as well as the control dial is
easy to access.

ECM/PM Spherical Motor
115 Volts, 60 HZ, 1 Phase
60 Watts Max Power Consumption
Automatic Overload Protection
Low in-rush current
Piping Connection

Built-in Software Protection (for auto and vario)

Flanged, 2-Bolt
For use with ¾, 1, 1¼, or 1½ inch pipe

ecocirc 19-14 has built-in protection to protect from installation
errors and improper usage.

auto pump curves
1
2
3
4
5
6
7

Setting 1
Setting 2
Setting 3
Setting 4
Setting 5
Setting 6
Setting 7

There is an overload protection to protect the electronics from
over-current or over-voltage input. To further protect the electronics
from damage, there is an over-temperature protection. This built-in
protection will first slow the speed down to continue operation, but
will shut down if the temperature of the electronics continues to rise
to high levels.
The circulator is also protected against dry-run condition. Built-in
software will recognize a change in performance and determine that
the circulator is dry-running. Automatically the circulator will stop
operating and will need to be reset to continue operation.
The circulator continually monitors the system for any change in
power input or dry-run condition or electronic’s temperature. If any
error is detected, the circulator will shut down and will need to be
reset to continue operation after the error has been fixed.

4

Model Number

Part Number

Control Mode

Shipping Weight

ecocirc 19-14 auto

6050B2000

auto – Proportional Pressure

9.25 lb

CIRCULATORS ecocirc® vario
Heating/Cooling Circulator
Description
ecocirc 19-14 vario circulators are designed, with highly efficient electronically
commutated permanent magnet motor (ECM/PM technology), specially for
hydronic systems.
The ecocirc 19-14 vario has a constant curve control, which allows the pump to
follow the natural hydraulic curve of a circulator. Basically acts the same as a
standard 3-speed pump except with a step-less dial resulting in infinite
speed control.

vario

ecocirc 19-14 vario is ideal for replacement for existing circulators with induction
motors as well as new construction as primary or zone circulators.

Materials of Construction

Our design separates the magnetic chamber from the flow
(for auto and vario)

Pump Body: Cast Iron
O-Ring: EPDM
Bearing: Carbon/Alumina Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM/PM
All Other Wetted Parts: Stainless Steel

Magnetite and sludge, which are both found in the pumped liquid and are both
magnetic, can accumulate at the permanent magnetic parts of a high efficiency
pump, and therefore block and damage it. The Anti-Block Technology separates the
main flow of the pumped media completely from the permanent magnetic parts.
It is virtually impossible for the ecocirc auto or vario to block-up even in an old
open system.

Operating Data
Maximum Working Pressure: 150 PSI (10 Bar)
Maximum Working Temperature: 203°F (95°C)
Minimum Working Temperature: 40°F (4°C)
Motor
ECM/PM Spherical Motor
115 Volts, 60 HZ, 1 Phase
60 Watts Max Power Consumption
Automatic Overload Protection
Low in-rush current

The side flow of the wet running
circulators, which is required for
lubrication and cooling of the bearing,
is separated from the main flow with its
magnetite and sludge.

The main flow of the pumped media
(blue) and its magnetite and sludge
particles (red) flow outside the influence
area of the permanent magnet rotor
(bottom).

Piping Connection
Flanged, 2-Bolt
For use with ¾, 1, 1¼, or 1½ inch pipe

Dimension (for auto and vario)

5

6 7

Model Number

Part Number

Control Mode

Shipping Weight

ecocirc 19-14 vario

6050B2001

vario – Constant Curve

9.25 lb

6.05” (153.6mm)

4

7.46” (189.6mm)

3

Setting 1
Setting 2
Setting 3
Setting 4
Setting 5
Setting 6
Setting 7

4.97” (126.1mm)

2

1
2
3
4
5
6
7

2.68” (68mm)

1

6.5” (65mm)

4.17” (106mm)

variovario
pump
curves
Pump Curves

5

CIRCULATORS ecocirc® XL
High efficiency large wet rotor pump for heating,
cooling and potable water systems
Description
The ecocirc XL is a high efficiency, variable speed, wet rotor pump with
integrated drive. The circulator is available in cast iron or lead-free bronze and
has a broad operating temperature range of 14°F to 230°F (-10°C to 110°C).
The ecocirc XL is suitable for both hot and chilled water systems.
The ecocirc XL circulator is designed with a highly efficient electronically
commutated permanent magnet motor (ECM/PM Technology). This circulator
can enhance hydronics systems with superior quality and dependability. Stateof-the-art hydraulics, advanced motor design, intelligent controls, and smart
communication capabilities highlight expert engineering across a board range
of HVAC and plumbing applications.

Operating Data
Maximum Working Pressure: 175 PSI (12 Bar)
Minimum Working Temperature: 14°F (-10°C)
Maximum Working Temperature: 230°F (110°C)
Ambient Temperature Range: 32°F - 104°F (0°C - 40°C)

Materials of Construction
Pump Body: Cast Iron or Lead-Free* Bronze
Impeller: Poly-phenylene Sulfide or Stainless Steel
Shaft: AISI 420 Stainless Steel
Rotor: Permanent Magnet
Bearing: Carbon Sleeve
Gasket/O-Ring: EPDM
All Other Wetted Parts: AISI 304 Stainless Steel
Motor Type: Electronically Commutated Motor /Permanent Magnet
Motor Insulation Class: F
Cast Iron Body

• Enclosure: Class 2, IP44 (equivalent to NEMA Type 2)
• UL Listed to UL 778; UL 1004-1, 1004-7; and UL 60730-1
• cUL Listed to C22.2 #108
• Electronically Thermally Protected (Integrated Motor Protection)
• Motor Insulation Class: F
• CSA certified to NSF/ANSI 372 that product contains less than
0.25% lead content by weight on wetted surface

Lead-Free Bronze Body*
Part
Model Number
Number

Part
Number

Model Number

Safety Standards And Protection

Rated Motor Characteristics
HP**

Voltage

Phase

Hz

Watts Range AMP Range

115

1

50/60

6-85

0.1 – 1.3

ecocirc XL 20-35

104300

ecocirc XL B 20-35

104400LF

1/12

ecocirc XL 36-45

104301

ecocirc XL B 36-45

104401LF

1/6

115

1

50/60

20-200

0.1 – 3.0

ecocirc XL 36-45

104302

ecocirc XL B 36-45

104402LF

1/6

208-230

1

50/60

20-200

0.1 – 1.5

ecocirc XL 15-75

104303

ecocirc XL B 15-75

104403LF

1/6

115

1

50/60

30-150

0.1 – 2.3

ecocirc XL 15-75

104304

ecocirc XL B 15-75

104404LF

1/6

208-230

1

50/60

30-150

0.1 – 1.1

ecocirc XL 55-45

104306

ecocirc XL B 55-45

104406LF

1/2

208-230

1

50/60

30-500

0.2 – 2.0

ecocirc XL 20-140

104308

ecocirc XL B 20-140

104408LF

1/2

208-230

1

50/60

35-470

0.2 – 2.0

ecocirc XL 65-130

104309

ecocirc XL B 65-130

104409LF

1

208-230

1

50/60

45 - 825

0.5 – 3.5

ecocirc XL 40-200

104312

ecocirc XL B 40-200

104412LF

1

208-230

1

50/60

50 - 825

0.5 – 3.5

ecocirc XL 70-145
ecocirc XL 40-275

104315
104318

ecocirc XL B 70-145
ecocirc XL B 40-275

104415LF
104418LF

2
2

208-230
208-230

1
1

50/60
50/60

55 - 1400
50 - 1400

0.6 – 6.0
0.5 – 6.0

Note: Where potable water is pumped, use a lead-free bronze booster. ecocirc XL pumps are recommended for indoor use only.
*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.
** Nominal HP

ecocirc XL High Head Performance Range
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
0

6

ecocirc XL High Flow Performance Range
50
45
40
35

70-145

30
25

40-275

20
15
10
5
10

20

30

40

50

60

70

80

90

100 110 120 130 140 150

0

0

25

50

75

100

125

150

175

200

225

250

275

CIRCULATORS ecocirc® XL
High efficiency large wet rotor pump for heating, cooling and potable water systems

Self-flushing membrane
Allows clean water to cool and
lubricate the motor bearing.
Restricts entry of abrasive
particles.
Economical operation
A highly efficient ECM motor
combined with optimized pump
hydraulics, keeps operational
costs at a minimum.

User-friendly interface
With only four logically placed buttons on
an intuitive interface, it’s easy to set and
operate the new ecocirc XL. Advanced
settings enable custom programming,
accessible via a PC, smartphone or wireless
enabled device.

Chilled water applications
Electronics are separated from the pump
to prevent condensation for worry free
operation even at 14ºF (-10ºC).

Sensorless technology
The ecocirc XL variable speed drive has the pump’s hydraulic
performance mapped in memory for multiple RPMs with
corresponding electric current values (similar to the ITSC Sensorless
VS Drive). The Delta P value associated with the pump’s actual
operating point is compared to the setpoint Delta P and the
controller makes speed adjustments using current to minimize
the differences between actual Delta P and setpoint Delta P.

Keep it hot or cold
A closed, perfectly molded
insulation shell preserves a
constant temperature of the
pumped liquid.

High visibility
Even in dark mechanical rooms, a
bright display with large figures
and symbols makes it easy to view
pump status.

Increase your control options
Multiple inputs including start-stop,
temperature control, pressure regulation
and advanced Modbus or BACnet
control provide dynamic system
management.

Product Range Chart
Version
Model Number
High
Head

High
Flow

Power Supply
Single
Phase
115V

ecocirc XL 20-35

•

•

ecocirc XL 36-45

•

•

ecocirc XL 15-75
ecocirc XL 55-45

•
•

ecocirc XL 20-140
ecocirc XL 65-130
ecocirc XL 70-145
ecocirc XL 40-275

2”
Booster
(4 Bolts)

Ambient
Temp.
Range

Max.
Pressure
Range

Protection
Class

14ºF - 230ºF

32ºF - 104ºF

175 PSI

IP44

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•
•

•

•

•

•

•
•

3”
Booster
(4 Bolts)

Fluid
Temp.
Range

Small
Booster
(2 Bolts)

•

•

Large
Booster
(2 Bolts)

Pump Body

Single
Phase
208-230V

•

•

ecocirc XL 40-200

•

Flange Connection

•

Cast
Iron

Lead-Free
Bronze*

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•
•
•
•

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.
• Small Booster (2 bolts) has a bolt hole to bolt hole dimension of 3-3/16”.
• Large Booster (2 bolts) has a bolt hole to bolt hole dimension of 3-7/16”.

NSF/ANSI 372

Input Signals

Remote Building Management System Capabilities

• One 0-10V (Analog): Speed Control by external controller
• One 4-20mA (Analog): Connection with an external differential pressure
	 sensor for the pressure control mode (two different pressure sensor
range: 0-15 PSI PN: 104503 and 0-30 PSI PN: 104504
• One external temperature sensor input for either Constant Temperature
	 or Temperature Influenced modes. Sensor PN: 104502
• One built-in temperature sensor for either Constant Temperature or
	 Temperature Influenced modes.

• The pump can be monitored or controlled by a signal from a BMS
	 (Building Management System). Built-in protocols are BACnet and
	 Modbus. Direct connection to a PC is available.
• An optional wireless module can be added to create a short range
	 wireless field for remote connection to the pump. An internet browser
or an App can be used to program the advanced settings.
Module PN: 104500
7

CIRCULATORS ecocirc® XL
High efficiency large wet rotor pump for heating, cooling and potable water systems
STANDARD OPERATING MODES
Constant Speed

Night Mode

The pump maintains a constant speed at any flow rate. The desired
speed is set on the interface panel of the pump.

The pump will automatically reduce speed when there is
an abrupt change in fluid temperature. The change in fluid
temperature is from a boiler operating in night time setback
mode. The built-in temperature sensor is used. (Fixed Speed,
Constant Pressure, Proportional Pressure)

Constant Pressure (Δp-c)
The pump maintains a constant differential pressure at any flow
demand until the maximum speed is reached. The desired head of
the pump can be set via user interface. Recommended for use in
systems with small or constant pressure losses.

CONSTANT TEMPERATURE SPEED CONTROL
T- Constant Control
This control mode will use a PI algorithm to vary the speed of the pump
in order to maintain a constant temperature of the fluid media.

Proportional Pressure (Δp-v)
The differential pressure continuously increases or deceases based
on the flow demand. The set point head can be set on the pump
user interface. Use for systems with large pressure losses.

ΔT-Constant Control
This control mode will use a PI algorithm to vary the speed of the pump
in order to maintain a constant differential temperature between the
built-in temperature sensor and external temperature sensor.

A
C

J

H

B

G

G

H

K

K

D
F
E
Model Number

Approx. Shipping
Weight Lbs. (kg)

Dimenstions - Inches (mm)

Nominal
Motor HP

A

B

C

D

E

F

Cast Iron

Bronze

ecocirc XL 20-35

1/12

9.94 (252)

6.38 (162)

8.20 (208)

4.19 (106)

7.20 (183)

4.72 (120)

19.8 (9)

22 (10)

ecocirc XL 36-45

1/6

9.94 (252)

6.38 (162)

8.20 (208)

4.19 (106)

7.20 (183)

4.72 (120)

19.8 (9)

22 (10)

ecocirc XL 15-75

1/6

11.04 (280)

8.5 (216)

8.39 (213)

5.19 (132)

7.57 (192)

4.72 (120)

26.4 (12)

28.6 (13)

ecocirc XL 55-45

1/2

11.89 (302)

6.38 (162)

10.18 (258)

4.19 (106)

8.12 (206)

5.02 (127)

26.4 (12)

28.6 (13)

ecocirc XL 20-140

1/2

13.39 (340)

11.5 (292)

10.41 (264)

5.19 (132)

8.20 (208)

5.02 (127)

35.2 (16)

39.6 (18)

ecocirc XL 65-130

1

14.84 (377)

11.5 (292)

11.80 (299)

4.62 (117)

9.53 (242)

5.77 (146)

39.6 (18)

44 (20)

ecocirc XL 40-200

1

15.17 (385)

11.5 (292)

11.80 (299)

5.19 (132)

9.53 (242)

5.77 (146)

41.8 (19)

46.2 (21)

ecocirc XL 70-145

2

14.84 (377)

11.5 (292)

11.80 (299)

4.62 (117)

9.53 (242)

5.77 (146)

38.4 (17)

44 (20)

ecocirc XL 40-275

2

16.04 (407)

12.0 (305)

12.57 (319)

6.00 (152)

10.07 (256)

5.77 (146)

49.6 (23)

55 (25)

B&G Companion Fange
(Set of 2)

Dimenstions - Inches (mm)

Flange Size
Inches - NPT

# of
Bolts

G

H

J

ecocirc XL 20-35

3/4, 1, 1-1/4, 1-1/2

2

4.19 (106)

3.16 (80)

2.62 (66)

0.47 (12) 101001 - 101004*

101011LF - 101014LF*

ecocirc XL 36-45

3/4, 1, 1-1/4, 1-1/2

2

4.19 (106)

3.16 (80)

2.62 (66)

0.47 (12) 101001 - 101004*

101011LF - 101014LF*

ecocirc XL 15-75
ecocirc XL 55-45
ecocirc XL 20-140

2
3/4, 1, 1-1/4, 1-1/2
2

4
2
4

5.18 (132)
4.19 (106)
5.19 (132)

4.06 (103)
3.16 (80)
4.06 (103)

2.62 (66)
-

0.56 (14)
101215
0.47 (12) 101001 - 101004*
0.56 (14)
101215

10216LF
101011LF - 101014LF*
10216LF

ecocirc XL 65-130

1, 1-1/4, 1-1/2

2

4.62 (117)

3.44 (87)

2.86 (73)

0.47 (12) 101005 - 101007*

101015LF - 101017LF*

Model Number

K

ecocirc XL 40-200

2

4

5.19 (132)

4.06 (103)

4.06 (103) 0.56 (14)

ecocirc XL 70-145

1, 1-1/4, 1-1/2

2

4.62 (117)

3.44 (87)

2.86 (73)

ecocirc XL 40-275

3

4

6.00 (152)

5.06 (129)

-

* Part numbers represent a Master Carton of 12 flanges with fasteners pack.
1-1/2” is the diameter of the suction and discharge for the 2-bolt models.
8

Cast Iron PN

101215

0.47 (12) 101005 - 101007*
0.53 (13)

101217

Bronze PN

10216LF
101015LF - 101017LF*
10218LF

CIRCULATORS ecocirc® Series
Potable Hot Water Recirculation Pumps - Whole House
Description
e3 circulators are energy efficient circulators using permanent magnet, ECM (electronically
commutated motor) technology. The e3 circulators are designed specifically for potable
water applications. These circulators are lead-free* and come with a variety of options
including a temperature sensor, various body styles, assembled with electrical cord and
plug. Timer sold as an accessory (See page 24 for more information).
Adjustable Speed Switch
(Models Without Temp Sensor)

Materials of Construction
Pump Body: Lead-Free* Brass
O-Ring: EPDM or Viton
Bearing: Carbon/Alumina Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM
All Other Wetted Parts: Type 316 Stainless Steel,
Shaft-less and seal-less construction

Infinitely variable-speed switch to manually
adjust motor speed.
Adjustable Temperature Sensor
(Fixed Speed Only)
Adjustable Set Point from 68°F to 158°F
(20°C to 70°C)
Turns circulator OFF when water temperature
reaches set point
Turns circulator ON when water temperature is
10°F (6°C) below set point

Operating Data
Pump
Maximum Working Pressure: 150 PSI (10.3 Bar)
Maximum Working Temperature: 203°F (95°C)
Minimum Working Temperature: 50°F (10°C)

Connections

Motor

1/2” UltraCirc with Ball & Check Valve
1/2” Sweat
1/2” FNPT Threaded

ECM Spherical Motor
10-28 Watts Power Consumption
Automatic Overload Protection
Low in-rush current

3

6

2

4

1

2

0

0
4

5

15

4

10

2

5

0

0
0

6

1

UltraCirc Housing Flow
NPT/Sweat Housing Flow

Part
Number

e3-4V/BSPYZ
e3-4_/BSXRZ
e3-4V/BTXYZ
e3-4_/BTPRZ
e3-6V/BSPYZ
e3-6V/BTXYZ
e3-6V/BTPYZ
e3-4V/BUPYZ
e3-4_/BUPRZ
e3-6V/BUPYZ
e3-6_/BSPRZ
e3-Timer

LHB08100101
LHB08100102
LHB08100104
LHB08100106
LHB08100109
LHB08100112
LHB08100110
6050B5002
6050B5003
6050B5004
6050B5006
LHB08260002

3

4

5

6

Flow (GPM)

Flow (GPM)

Model
Number

2

---- UltraCirc Housing Energy Consumption
---- NPT/Sweat Housing Energy Consumption

Materials

Connection
Size

Type

Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass
Lead-Free Brass

1/2”
1/2”
1/2”
1/2”
1/2”
1/2”
1/2”
1/2”
1/2”
1/2”
1/2”

Sweat
Sweat
FNPT
FNPT
Sweat
FNPT
FNPT
Union
Union
Union
Union

-

-

-

Adjustable
Speed

5 1/2”

Adjustable
Thermostat

•

Plug
•

Standard Pump Housing
(Sweat & Threaded)

•
•
•
•
•
•
•
•
•
•

•
•
•
•
•
•
•

1/2”

3

6

4 3/16”

2

20

2 3/4”

1

8

5 1/2”

8

25

4 1/4”

4

10

UltraCirc Pump Housing
(Union with Ball & Check Valve)

2 3/4”

10

30

Power Consumption (W)

5

e3 - 6 Pump Curves

12

Head (ft)

Head (ft)

12

Power Consumption (W)

e3 - 4 Pump Curves

0

e3 – 4, e3 – 6

(See Page 20)

Pump Curves
6

e3 Timer

2 1/2”

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.
9

CIRCULATORS ecocirc® wireless
Potable Hot Water Recirculation Kit
Description
The ecocirc wireless is a potable hot water recirculation kit (a pump and valve
combination) for instant supply of hot water supply throughout the entire house.
The ecocirc pump is installed on the supply side of the hot water source and the
mixing valve under the sink farthest away from the hot water source. The pump
and valve are in constant wireless communication.

Operating Data
Maximum Operating Temperature: 203°F (95°C)
Maximum Operating Pressure: 145 PSI (10 Bar)
Power Supply: 115 Volts, 60 HZ, 1 Phase
Power Consumption: 20 Watts
Operating Noise Level: 30 dB
Batteries: 2 AA Alkaline
Estimated Battery Life: 2 Years
Maximum Transmitter Range: 150 ft

How it Works
The desired water temperature at the valve is set directly on the pump with the
thermostat dial. The water temperature is constantly checked by the valve and the
temperature values are sent to the pump. At approximately 5°F below the desired
water temperature, the pump will begin to circulate hot water. This circulation will
open the valve for hot water to cross into the cold water line, which creates a return
loop back to the hot water source. When the desired temperature is reached, the
pump will stop circulating. This is to prevent continuous circulation.

Materials of Construction
Paired Mixing Valve
Body: Lead-Free* Brass
Springs: Stainless Steel
Valve Insert: Acetal Plastic
Seals: EPDM
Transmitter Housing: ABS Plastic

Circulator Pump
Body: Lead-Free* Brass
Seals: EPDM
Impeller: Nylon/PPO
Internals: 316 Stainless Steel

An Optional Push Button / Signal Repeater
A wireless device to provide instant hot water with a push of a button. The push button
device will override the timer operation and activate the pump to circulate hot water
until the desired temperature is met at the valve. This device also functions as a signal
repeater when the pump and valve have a weak signal due to distance or interference.

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead
content by weight on wetted surface.

A

B

paired
mixing
valve

cold water

C
E

D

hot water

ecocirc
recirculation
pump

F

G
W
X

Y
water
heater

Z

Model Number
ecocirc wireless
Recirculation Kit
Push Button/
Signal Repeater

10

The system can be controlled using
the timer and/or the built in thermostat
and has the option for a wireless push
button start.

Part Number
6050B4000
6099B1500

Connection

Optional push
button/signal repeater
(not included in kit).
Can be plugged into
any standard electrical
outlet in the house.

Dimension Inches (mm)
A

B

C

D

E

F

G

W

X

Y

Z

Pump: 3/4” M/F NPT
4.84
6.87
4.47
1.97 2.93
4.74 2.68 3.5 1.1 0.87 5.45
Valve: 1/2” MNPT x
(123) (174.6) (113.5) (50.1) (74.4) (120.5) (68) (89) (28) (22) (138.5)
3/8” compression

Shipping
WT.
LBS. (kg)
3.9
(1.8)

CIRCULATORS autocirc® Series
Potable Hot Water Recirculation Pumps - Undersink
Description
autocirc® circulators are energy efficient using permanent magnet, ECM
(electronically commutated motor) technology. The autocirc circulators
are designed specifically for standard water heaters. These circulators are
lead-free* and are assembled with a timer, cord and plug.
Materials of Construction

e3-4_-/BDPRC

Pump Body: Lead-Free* Brass
O-Ring: EPDM
Bearing: Carbon/Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM
All Other Wetted Parts: Type 316 Stainless Steel,
Shaft-less and Seal-less construction.

e3-4_-/BDPQC

9/16” 24 UNEF

7 7/16”

1/2” 14 NPT

1/2” 14 NPT

Motor
ECM Spherical Motor
115 Volt 60 Hz, 1 Phase
14 Watts Power Consumption
Automatic Overload Protection
Low in-rush current

9/16” 24 UNEF

2 13/16”

4 13/32”

Maximum Working Pressure: 145 PSI (10 Bar)
Maximum Working Temperature: 203ºF (95ºC)
Minimum Working Temperature: 50ºF (10ºC)

1 19/32”

Operating Data Pump

2 13/16”

4 3/8”

Model Number
e3-4_-/BDPQC

Part Number

Description

Weight

LHB08100098

Lead-Free Brass autocirc 1/2” Fixed Thermostat with Timer

4 lbs.

e3-4_-/BDPRC

LHB08100099

Lead-Free Brass autocirc 1/2” Adjustable “ON” Thermostat with Timer

4 lbs.

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.

CIRCULATORS ecocirc® B 23-5 ACT
Potable Hot Water Recirculation Pumps - Undersink
Description
The ecocirc B 23-5 ACT lead-free* pump was designed with highly efficient electronically
commutated permanent magnet motor (ECM/PM technology) specifically for potable water
systems. This unique design is perfect for retrofits and systems with tankless water heaters.
No recirculation pipe is required.
ECM Spherical Motor
115 Volt 60 Hz, 1 Phase
60 Watts Power Consumption
Automatic Overload Protection
Low in-rush current
3.98” (101mm)

ecocirc B 23-5 ACT
2.32” (59mm)

Operating Data Pump
Maximum Working Pressure: 145 PSI (10 Bar)
Maximum Working Temperature: 203ºF (95ºC)
Minimum Working Temperature: 50ºF (10ºC)

1.61” (40.8mm)

Pump Body: Lead-Free* Brass
O-Ring: EPDM
Bearing: Carbon/Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM
All Other Wetted Parts: Type 316 Stainless Steel,
Shaft-less and Seal-less construction

6.76” (71.7mm)
5.85” (48.7mm)

Motor

5.19” (132mm)
5.97” (151.74mm)

Materials of Construction

Model Number

Part Number

Description

Weight

ecocirc B 23-5 ACT

6050B7016

Lead-Free Brass autocirc 1/2” Fixed Thermostat with Timer

6.50 lbs.

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.
11

CIRCULATORS LS Condensate Removal Pump
For Condensing Boilers and Air Conditioning /Cooling Systems
Description
The LS condensate removal pumps are energy efficient lifting stations that
use permanent magnet, ECM (electronically commutated motor) technology.
The LS condensate removal pumps are designed specifically for use in
applications where the removal of condensate fluid is not possible by gravity.
Materials of Construction
Pump Housing: ABS Material
O-Ring: EPDM or Viton
Bearing: Carbon/Alumina Ceramic
Impeller: Nylon/PPO
Motor: High Efficiency ECM
All Other Wetted Parts: Type 316 Stainless Steel,
Shaft-less and Seal-less Construction

Additional inlet
with cover

Non-return valve
with bayonet fixing

Standard Features

Inlet opening

Motors are designed with a shaft-less
spherical motor with permanent magnet
technology for improved efficiency.
Pressure socket

Tank

Magnetic float

Motor
ECM Spherical Motor
Phase: Single 60 Hz
Voltage: 100-140 volts
Power Consumption: 20 watts
Current draw: 0.1 - 0.2A
Automatic Overload Protection
Low in-rush current

Permanent magnetic
rotor/impeller unit

Acid Resistant

LED signals

All LS condensate removal pumps are made
from acid resistant ABS material

Stator of the high efficiency
ball bearing pump

Pump sump
Mounting
bracket with clip

12

Model

Part Number

Housing Material

Motor

Weight

LS Condensate Pump

6098B0000

ABS

ECM

3.5 lbs

CIRCULATORS ecocirc® SC Solar Pump
Spherical Motor Pump
Application
• The ecocirc solar pump can be used for most circulation pump
applications without connection to the power grid with direct
connection to a photovoltaic panel.
• This pump is perfect for single family home thermal
solar systems or any circulation pump application where
conventional power is not available, on closed loop systems

2.56”

e3-SC6N and e3-SC6S

14

e3-SC4U

14

e3-SC6S

e3-SC6N

12

10

Feet of Head

Feet of Head

e3-SC4U

12

10
8
6
4
2
0

4.21”

3.07”

3.14”

1/2”
2.56”

Over-temperature Safety Device
• The ecocirc solar pump comes with an integrated overtemperature safety device which shuts off the pump electronics
when reaching temperatures over 230°F.
• After reaching a critical temperature 203°F the pump will lower
its speed automatically in order to avoid a total shutdown.
Materials of Construction
Pump Body: Lead-Free* Brass
O-Ring: EPDM
Bearing: Carbon/Alumina Ceramic
Impeller: PPO
Motor: High Efficiency ECM
All Other Wetted Parts: Type 316 Stainless Steel
Shaft-less, Seal-less Construction

1/2”
3.15”

Soft Start-up
• When the photovoltaic panel provides sufficient power, the
pump goes through the alignment phase by turning the rotor
into the position required for start-up.
• The processor then waits until the capacitor is sufficiently
charged.
• This enables a start-up with minimal power (less than one watt).

1 - 18 UNS

1.18” 1.37”

2.7”

Design
• The only moving part is a hemispherical rotor/impeller unit
which sits on an ultra-hard, wear-resistant ceramic ball.
• There are no conventional shaft bearings or seals eliminating
bearing noise and seal leaks.
• This pump is robust and has an estimated service life in excess
of 50,000 hours.
• All parts exposed to the fluid are completely corrosion resistant.

0

1

2

3

4

5

6

7

8
6
4
2
0

0

1

2

GPM

4

5

6

7

5

6

7

GPM

Technical Data
Motor Design:
Electronically commutated spherical motor with permanent magnet rotor/impeller
Voltage:
12 - 24 Volt
14
14
Maxium System Temperature: 203ºF (95ºC)
12
12
Maxium Pressure:
150 PSI
10
Power Consumption*:
Min. start-up power consumption less than 1 Watt, max. power consumption 22 Watts 10
8
8
Current Draw:
0.25 - 1.46 A
6
6
Acceptable Media:
Potable hot water recirculation, heating water, water/glycol mixtures, other media on request**
4
4
Environment:
IP 42
2
2
Insulation Class:
Class F
0
0
0 with
1 more
2
3
420%5glycol.
6
* Power consumption and start may vary in different installations. **Please check pump performance
than

3

7

0

1

2

3

4

Available Models
Model

Part Number

Description

Weight

e3-SC6S

6055B2000

Lead-Free Brass* Solar Circulator 1/2” Sweat

2 lbs.

e3-SC6N

6055B2001

Lead-Free Brass* Solar Circulator 1/2” NPT

2 lbs.

e3-SC4U

6055B2002

Lead-Free Brass* Solar Circulator 1/2” Union Sweat**

2 lbs.

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight on wetted surface.
** Built-in ball check valve and purge valve.
13

CIRCULATORS Bell & Gossett Cast Iron Wet Rotor Circulators / NRF
Description

Materials of Construction

A residential or light commercial, maintenance free, axial flanged,
in-line, cast iron, wet rotor circulation pump for hydronic heating
systems. UL and cUL Listed.

Pump Body: Cast Iron
Impeller: Noryl
Shaft: Ceramic
Bearings: Double-Sintered Carbon

Operating Data

Warranty

Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature:
NRF-22 & NRF-9F/LW: 240°F (115°C)
NRF-25, NRF-33, NRF-36 & NRF-45: 225°F (107°C)

Bell & Gossett offers a warranty of 3 years from date of manufacture or
18 months from date of installation (which ever comes first) against
failure as a result of defects in materials and workmanship.

Specifications
Model
Number

Single
Speed

NRF-9F/LW

•
•

NRF-22

•

NRF-25
NRF-33

Three
Speed

•

Part
Number

Dimensions Inches (mm)

Flange Sizes
Inches - NPT

Standard 60 Cycle Motor Characteristics*
F.L. Amps

RPM

Shipping
Weight
lbs. (Kg)

41

0.40

2800

9.3 (4.2)

92

0.80

2940

9.3 (4.2)

1.20

2950

10.4 (4.7)

A

B

C

Watts

103267

6 3/8 (162)

6 3/16 (157)

5 1/8 (130)

103251

6 3/8 (162)

6 3/16 (157)

5 1/8 (130)

6 3/8 (162)

6 3/16 (157)

5 1/8 (130)

125

103417

3/4, 1, 11/4, 11/2

ø

1

Volts

115

103350

6 3/8 (162)

5 9/16 (141)

4 7/8 (124)

125

1.10

2950

10.4 (4.7)

6 3/8 (162)

6 7/8 (175)

5 3/4 (146)

270

2.30

3300

13.1 (6.0)

8 1/2 (216)

7 3/8 (187)

5 3/4 (146)

270

2.30

3300

14.5 (6.6)

NRF-36

•

103400

NRF-45

•

103404

1, 11/4, 11/2

NRF-9F/LW, NRF-22, NRF-25 and NRF-33 are impedance protected.
NRF-36 and NRF-45 are thermally protected.
Dimensions are approximate and subject to change. Contact factory for certified dimensions.

Single Speed NRF Circulator Performance Curves

Single Speed NRF Circulators

NRF-9F/LW
14

NRF-22

NRF-33

CIRCULATORS Bell & Gossett Cast Iron Wet Rotor Circulators / NRF
Reliable, maintenance-free, whisper quiet wet
rotor circulators designed for residential and
light commercial heating systems.

DuraGlide™ Bearing System (blue areas in
cutaway illustration) incorporates several
components working together to eliminate
seasonal freeze-up
Powerful motor with high
starting torque provides years
of trouble-free operation
Three speed motors on
select models offer a
wide range of hydraulic
capabilities

Stabilized, heat resistant, non-metallic
impeller. Its closed
design improves
operating efficiency

One-piece, high-nickel
stainless steel stator can
isolate the stator
from system fluid and
maintains precision
bearing alignment for
longer bearing life

Self-cleaning particle
shield protects the
shaft and bearings
from system start-up
debris

Carbon bearings,
diamond-like ceramic
shaft and generous
clearances are more
resistant to lime, chloride
and oxide build-up
Face plate and rotor sleeve feature
corrosion resistant stainless steel
construction for longer life

Three-Speed NRF Circulator Performance Curves

Optional Zone Pump Relay Control

The ZoneTrol II AZ-1A is a single zone pump
relay that turns the pump and boiler on when
the thermostat calls for heat. The AZ-1A is ideal
when adding a zone to an existing system
and can be daisy-chained together to control
multiple zones (See page 25.)

Three-Speed NRF Circulators

NRF-25

NRF-36

NRF-45
15

CIRCULATORS Lead-Free Wet Rotor Circulators
for Potable Water / NBF & SSF
Description
A residential or light commercial, maintenance-free, in-line, lead-free*
bronze or stainless steel, wet rotor circulator for potable water systems
and other applications. Flanged, union or sweat models available.
UL and cUL listed.
Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature:
NBF-25, NBF-33, NBF-36, NBF-45: 225°F (107°C)
All Others: 230°F (110°C)
SSF-9

Materials of Construction
Pump Body NBF: 100% Lead-Free* Bronze
SSF: Stainless Steel
Impeller: Noryl
Shaft: Ceramic
Bearings: Double-Sintered Carbon

Cross Reference

Warranty
Bell & Gossett offers a warranty of three years from date of manufacture
or 18 months from date of installation (which ever comes first) against
failure as a result of defects in materials and workmanship.
*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by
weight on wetted surface.

C

SUCTION

NBF-9

B

A

BELL & GOSSETT	
NBF-8S/LW	
NBF-9U/LW	
NBF-10S/LW	
NBF-12U/LW	
NBF-12F/LW	
NBF-18S	
NBF-22U	
NBF-22	
SSF-22	
NBF-25	
NBF-33	
NBF-36	
	
	
NBF-45	

GRUNDFOS* 	
TACO**
UM 15-10B5	
003B
UP 15-18SU	
006B
UP 15-18B5	
006B
UP 15-42SU	
005B
UP 15-42SF	
005B
UP 15-42B5	
—
UP 25-64SU	
007B
UP 25-64SF	
007B
UP25-64SF	007B
UPS15-58	00R-MS
—	0010B
UP26-96BF	0011B
UP26-99BF	0013B
UP26-64SF	0014B
UP43-75BF	—

*Grundfos is a registered trademark of Grundfos Pumps Corp.
**Taco is a registered trademark of Taco, Inc.
DISCHARGE

Specifications
Model
Number

Part
Number

NBF-8S/LW
NBF-9U/LW
NBF-10S/LW

103257LF
103258LF
103259LF

Connections
1/2" Sweat

Standard 60 Cycle
Motor Characteristics*

Dimensions
Inches (mm)
A
5 (127)

B

C

5 7/32 (132) 4 7/8 (124)

Watts

O

Volts

F.L. Amps

39
41
55

0.39
0.40
0.46

NBF-12F/LW

103260LF

Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)
1/2" Sweat
5 (127)
5 7/32 (132) 4 7/8 (124)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 5 9/16 (141) 4 7/8 (124)

55

0.48

NBF-12U/LW
NBF-18S
NBF-22

103261LF
103316LF
103252LF

Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)
1/2" Sweat
5 (127)
5 7/32 (132) 4 7/8 (124)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 5 9/16 (141) 4 7/8 (124)

55
90
92

0.48
0.74
0.80

NBF-22U
NBF-25
NBF-33

103255LF
103418LF
103351LF

Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 6 3/16 (157) 5 1/8 (130)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 6 3/16 (157) 5 1/8 (130)

92
125
125

NBF-36
NBF-45
SSF-9U/LW

103401LF
103405LF
103360LF

Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 6 7/8 (175) 5 3/4 (146)
Flange 1, 11/4, 11/2
8 1/2 (216) 7 3/8 (187) 5 3/4 (147)

270
270
41

SSF-12F/LW
SSF-12U/LW

103358LF
103361LF

SSF-22
SSF-22U

103357LF
103362LF

Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 5 9/16 (141) 4 7/8 (124)
Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)
Flange 3/4, 1, 11/4, 11/2 6 3/8 (162) 5 9/16 (141) 4 7/8 (124)
Union**
6 1/8 (156) 5 1/16 (129) 4 7/8 (124)

* Impedance protected
** Union Connections are available in 3/4" NPT, 1/2" sweat & 3/4" sweat.

16

1

115

0.80
1.10
1.10
2.30

RPM

2800

0.48

92
92

0.80

9.0 (4.1)
9.3 (4.2)
9.0 (4.1)
9.5 (4.3)

3000
2940
2950
3300

0.40

55
55

Shipping
Weight
lbs. (Kg)

2800
2940

9.3 (4.2)
9.0 (4.1)
9.5 (4.3)
9.3 (4.2)
10.4 (4.7)
10.4 (4.7)
13.1 (6.0)
14.5 (6.6)
9.3 (4.2)
9.5 (4.3)
9.3 (4.2)
9.5 (4.3)
9.3 (4.2)

CIRCULATORS Lead-Free Wet Rotor Circulators
for Potable Water / NBF & SSF – continued
Single Speed–NBF/SSF 60 HZ Performance Curve

Three Speed–NBF 60 HZ Performance Curve

CIRCULATORS Series LR™ Maintenance-Free Circulators
Materials of Construction
Pump Body: LR-20WR: Cast Iron
	
LR-15BWR: Lead-Free* Bronze
Impeller: Noryl®
Shaft: Ceramic
Bearings: Carbon
*CSA certified to NSF/ANSI 372 that product contains less than
0.25% lead content by weight on wetted surface.

Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature: 225°F (107°C)

LR-15B

LR-20

C

B

A

Specifications
Model
Number

Part
Number

Pump
Body
Material

Flange
Sizes
Inches-NPT

LR-20WR
LR-15BWR

106507
106514LF

Cast Iron
Bronze

3/4, 1, 1-1/4, 1-1/2
3/4, 1, 1-1/4, 1-1/2

Standard 60Hz
Motor Characteristics*

A

B

C

Watts

Ø

F.L. Amps

FL Amps

RPM

Approx.
Shpg. Wt.
lbs (Kg)

6-3/8 (162)

6 (152)

3-7/8 (98)

125

1

115

1.10

2950

10.4 (4.7)

Dimension Inches (mm)

17

CIRCULATORS Maintenance-Free Circulators
a superior alternative to large wet rotor pumps
Operating Data
Maximum Working Pressure: 150 PSI (10.3 bar)
Maximum Operating Temperature: 225°F (107°C)
Materials of Construction
Booster Body: Cast Iron or Lead-Free* Bronze
Face Plate: Stainless Steel
Impeller: 30% Glass Filled Noryl® (PL-55 & PL-130): Glass Filled PPS
Shaft: Carbon Steel (PL-55 & PL-130): Stainless Steel
Shaft Sleeve: Stainless Steel (PL-55 & PL-130): None
Seal: Mechanical, Carbon on Silicon Carbide
Motor Bearings: Sealed Precision Steel Ball Bearing Permanently Lubricated
Motor Type: ODP
Elastomers: EPDM

PL-75, 130

PL-30, 36, 45, 50, 55

*CSA certified to NSF/ANSI 372 that product contains less than 0.25% lead content by weight
on wetted surface.

Specifications

	
Flange	
Motor Characteristics*	
Dimensions in inches (mm)	
Approx.
	
Cast Iron	
Lead Free	
Size		
@ 60 Hz (Open Drip-Proof)	
Shipg. Wt.
	 Model No. 	
Part No.	
Model No.	 Part No.	
Inches - NPT	
HP	 ø	 Voltage	 RPM	
A	
B	
C	
D	
E	
Ibs. (Kg)
					
3/4, 1,										
	
PL-30 	
1BL012	
PL-30B	
1BL013LF	
1 1/4, 1 1/2	 1/12			 2650	8 5/8 (219)	6 3/8 (162)	
7 1/8 (181)	
4 3/16 (106)	
4 3/8 (111)	
11.6 (5.3)
3/4, 1,
1BL001	 PL-36B	 1BL003LF	1 1/4, 1 1/2	
1/6 		
	 3300	8 5/8 (219)	
6 3/8 (162)	
7 1/8 (181)	
4 3/16 (106)	 4 3/8 (111)	
13.1 (6.0)
					
										
1, 1 1/4	
	PL-45	
1BL002	 PL-45B	 1BL004LF	
1/6 		
	 3300	9 1/8 (232)	
8 1/2 (216)	
7 1/4 (184)	
4 5/8 (117)	
4 1/2 (114)	
14.5 (6.6)
1 1/2	
					
1, 1 1/4										
	PL-50	
1BL016	 PL-50B	 1BL017LF	1 1/2	1/6	
1	
115	
3300	 9 1/8 (232)	
8 1/2 (216)	
7 1/4 (184)	4 5/8 (117)	
4 1/2 (114)	
14.5 (6.6)
					
3/4, 1,
	PL-55	
1BL032	 PL-55B	 1BL068LF	1 1/4, 1 1/2	
2/5 		
	 3250	9 9/16 (243)	 6 3/8 (162)	 7 15/16 (202)	 4 3/16 (106)	 4 3/4 (121)	
13.1 (6.0)

	PL-36	

	
PL-75	
1BL034	
PL-75B	
1BL035LF	
2	
1/6			 3400	9 15/16 (252)	8 1/2 (216)	
	
	 PL-130/ 2”	
1BL063	
PL-130B/ 2”	 1BL065LF	
2	
2/5			 3200	10 3/4 (273)	
8 1/2 (216)	

7 3/8 (187)	

5 3/16 (132)	

4 5/8 (117)	

18.5 (8.4)

8 1/4 (210)	

5 3/16 (132)	

5 1/8 (130)	

22 (10)

	 PL-130/ 3”	

8 1/4 (210)	

6 (152)	

5 1/8 (130)	

27 (12.2)

1BL070	

PL-130B/ 3”	

1BL072LF	

2 1/2 & 3	

2/5			

3200	10 3/4 (273)	

8 1/2 (216)	

* 230/60/1 motors available upon request. Models PL-75 and PL-130 have four bolt hole flange connection, all others have two bolt hole flange connectors.
Dimensions are approximate and subject to changes. Contact factory for certified dimensions.
�

PL-55
PL-36
PL-45
PL-50
PL-30

PL-75

1 B&G’s powerful, dry-motor design delivers
exceptional performance. . . . 25% more
efficient than competition.
2 Precision-machined and balanced alloy steel
rotor for superior performance.
3 Quick-connect wire nut leads and dual
knock-outs make for fast, sure hook-ups.
4 Solid “Stiff-Shaft” design is constructed of
	 high-strength alloy steel impervious to
cracking caused by thermal stresses.

18

PL-130

5
	
	
	

XL-11™ Precision-Crafted Bearing System...
is permanently oil lubricated... completely
maintenance free...precisely positioned for
long-life and isolated for quiet operation.

6 Advanced close-coupled design increases
pump life and efficiency, assures
dependable seasonal start-ups and can
easily handle difficult water conditions.
	
7 Tough, durable seal system features a
	 carbon/silicon carbide seal on a stainless
	 steel shaft sleeve for long life and
	 rugged operation.
8 Double sided I-Seal™ design for optimum
efficiency.	

2

1

3
4

8
7
6
5

CIRCULATORS Oil Lubricated Circulators Three-Piece

PD

40

PD

38

Operating Data

PD

37

PR

Maximum Working Pressure: 125 PSI (8.6 bar)
Maximum Operating Temperature:
Standard Seal: 225°F (107°C) continuous
Special Seals: 250°F (121°C) continuous

PD

35

HD

2-1

SE

R1

2”

00

3

/2”

 &

LD

3

HV
With Timer & Cord
NBF-8S/TP
NBF-10S/TP
NBF-9U/TP

Specifications
Model
Number

Series 100
Series PR
Series HV
2"
2-1/2"
LD3
HD3
PD-35S
PD-35T
PD-37S
PD-37T
PD-38S
PD-38T
PD-40S
PD-40T

SSF-9U/TP

Cast Iron
Bronze
Model Number Part Number Model Number Part Number
106192LF
100
AB
106189
100NFI
106197LF
100 BNFI
106190
100BI
102206
PR
102207
PR BI
102208LF
PR AB
102210
HV NFI
102231LF
HV AB
102230
HV BI
102213LF
HV BNFI
102214
2 NFI
102233LF
2AB
102232
2 BI
102217LF
2 BNFI
102218
2-1/2
102219
2-1/2 BI
102220LF
2-1/2 AB
102222
LD3
102223
LD3 BI
102224LF
LD3 AB
102226
HD3
102227
HD3 BI
102228LF
HD3 AB
105089
PD35S
105090
PD35S BI
105092LF
PDB35S
105093
PD35T
105094
PD35T BI
105096LF
PDB35T
105097
PD37S
105098
PD37S BI
105100LF
PDB37S
105101
PD37T
105102
PD37T BI
105104LF
PDB37T
105121
PD38S
105122
PD38S BI
105123LF
PDB38S
105133
PD38T
105134
PD38T BI
105135LF
PDB38T
105151
PD40S
105152
PD40S BI
105153LF
PDB40S
105137
PD40T
105139LF
PDB40T
105138
PD40T BI

Flange
Size
Inches
(NPT)
3/4, 1
1-1/4, 1-1/2
3/4, 1
1-1/4, 1-1/2
1, 1-1/4,
1-1/2

Dimensions in Inches (mm)
(Open Drip-Proof)

Motor Characteristics*
@ 60 Hz
HP

Voltage

1/12
1/6
1/6

115 - with
built-in
overload
protection

Approximate Shpg.
Wt. lbs. (Kg)

A

B

C

Cast Iron

Bronze

14-7/8 (378)

6-3/8 (162)

12-3/4 (324)

20 (9)

21 (10)

15-1/4 (387)

8-1/2 (216)

12-3/4 (324)

30 (14)

32 (15)

15-3/8 (391)

8-1/2 (216)

13 (330)

28 (13)

30 (14)

16-5/8 (422)

8-1/2 (216)

14 (356)

36 (16)

39 (18)

2

1/6

2-1/2

1/4

17-1/4 (438)

10 (254)

14 (356)

54 (24)

58 (26)

3

1/4

17-1/4 (438)

10 (254)

14 (356)

53 (24)

57 (26)

3

1/3

115/230

17-1/2 (445)

10 (254)

14-1/4 (362)

55 (25)

59 (27)

3

1/2

1

115/230

20-1/4 (514)

12 (305)

16-7/8 (429)

75 (34)

80 (36)

3

1/2

3

208-230/460

20-1/4 (514)

12 (305)

16-7/8 (429)

75 (34)

80 (36)

3

3/4

1

115/230

20-1/4 (514)

12 (305)

16-7/8 (429)

75 (34)

80 (36)

3

3/4

3

208-230/460

20-1/4 (514)

12 (305)

16-7/8 (429)

75 (34)

80 (36)

3

1

1

115/230

22-3/4 (578)

14-1/2 (368)

19 (483)

128 (58)

138 (63)

3

1

3

208-230/460

24 (610)

14-1/2 (368)

20-1/4 (514)

125 (57)

135 (61)

3

1-1/2

1

115/230

24-3/4 (629)

14-1/2 (368)

21 (533)

130 (59)

140 (64)

3

1-1/2

3

208-230/460

21-7/8 (556)

14-1/2 (368)

18-1/8 (460)

127 (58)

137 (62)

1

PD-38 and PD-40 are ball bearing, maintenance-free design.
*Special motors available upon request. Dimensions are approximate and subject to changes.
Contact factory for certified dimension.

1 B&G  Motor — The heart of the booster.
The finest circulator motor available.
Sleeve bearing, oil lubricated with
replaceable resilient motor mounts.
B&G motors are designed and
manufactured specifically for the
B&G boosters.
2 Noise dampening coupler. B&G’s own
flexible spring design adds to quiet
operation. Do not accept a substitute.

4 Precision ground pump shaft is
oversized to provide large bearing
surfaces. Hardened integral thrust
collar minimizes end-thrust to
ensure long seal and bearing life.
5 The B&G mechanical seal is
designed to withstand the wide
range of water temperatures,
	 pressures, additives and dissolved
solids common in hydronic
systems.

3 Long bronze sleeve bearings maintain
exact shaft alignment. Provides for constant 6 Centrifugal impeller prevents
accumulation of air at seal faces to assure
circulation of oil over bearing surfaces.
long life. Close impeller/body tolerances
minimize water slippage and maximize
efficiency.

1

3 5

2

6
4

19

CIRCULATORS Series 60 In-Line Mounted Centrifugal Pump
Now Available with ECM Motor
Description
A maintenance-free, in-line, cast iron centrifugal
pump for header pump applications.
Designed for a variety
of applications
• Hydronic heating & cooling systems
• Domestic water
• Fluid transfer
Product Features
• Maintenance-free pump and motor design
• Internally self-flushing mechanical seal
• XL11® lubrication system
• Factory tested, Qualtiy Product
• ISO 9001 certified
• Neoprene coupling
• Compact design
• Easy installation
• Wide range of standard sizes
• Backed by B&G three-year warranty

Materials of Construction
Body: Cast Iron (Bronze Fitted)
Cast Bronze (All Bronze)
Impeller: Cast Bronze
Motor Shaft: Alloy Steel
Pump Shaft: Steel
Volute Gasket: Cellulose Fiber
Shaft Sleeve: Copper Alloy
Bracket: Cast Iron with Stainless Steel
Face Plate: 304 Stainless Steel
Mechanical Seal: Buna/Carbon-Ceramic
Standard: -20°F to 225°F

Shown with optional ECM motor

Operating Data
Maximum working pressure: 175 PSI
Operating temperature: 225°F
Series 60 with ECM Motor Pump is 5% quieter
than standard Series 60

Noise Level

Internally self-flushing seal
Bell & Gossett’s open-seal chamber design provides superior
flow circulation around the seal faces, resulting in reduced heat
buildup, increased particle removal and superior seal-face flushing.
It all adds up to long, trouble-free seal performance.

Series 60 with
ECM Motor
Pump

Series 60
Pump

Competitor’s
Pump

Quiet operation
The XL-11® Precision-Crafted Bearing System, advanced fluid
passage design and B&G permanently lubricated motor come
together to deliver smooth, quiet, maintenance-free performance.
ECM Performance Curves

Hydraulic Curve Performance Range e-60 @ 1725 RPM

Hydraulic Curve Performance Range
Series 60 with ECM
35

Series 60 ECM
Variable Speeds

30

25

State-of-the-art hydraulically balanced impellers and resilientmounted motors provide smooth, quiet operation.

Head (Feet)

Impeller

20

650S
652S

15

654S

655S

10

0

656S

651S
653S

5

0

50

100

150

Flow (GPM)

20

200

250

CIRCULATORS Series 60 In-Line Mounted Centrifugal Pump

Series 60
Standard Sizes
1750 RPM

Series 60
Standard Sizes
1750 RPM

Specifications
Model

Suction And
Discharge
Size
Inches NPT

Pump Dimension in Inches (mm)
F

G

K

L

M

N

P

R

S

T

601,602 & 603

1

6-7/16 (164)

3-7/16 (87)

3-5/8 (92)

1-3/8 (35)

2-1/2 (64)

7-1/2 (190)

3/4 (19)

5 (127)

6 (152)

11 (279)

604,605 & 606

1-1/4

6-7/16 (164)

3-7/16 (87)

3-5/8 (92)

1-3/8 (35)

2-1/2 (64)

7-1/2 (190)

3/4 (19)

5 (127)

6 (152)

11 (279)

607,608 & 609

1-1/2

6-9/16 (167)

3-5/8 (92)

3-3/4 (95)

1-3/8 (35)

2-3/4 (70)

7-7/8 (200)

3/4 (19)

5 (127)

6-1/2 (165)

11-1/2 (292)

613,614 & 621

1-1/2

6-11/16 (170)

3-3/8 (86)

4-1/16 (103)

1 (25)

3-9/16 (90)

8-9/16 (217)

3/4 (19)

6-1/2 (165)

7 (176)

13-1/2 (343)

617,618,622 &
623

1-1/2

9-3/8 (238)

3-1/4 (83)

4-5/8 (117)

1 (25)

3-7/8 (98)

9-1/2 (241)

3/4 (19)

6-1/2 (165)

7 (176)

13-1/2 (343)

610,611 & 612

2

6-11/16 (164)

3-3/4 (95)

3-3/4 (95)

1-3/8 (35)

2-7/8 (73)

8 (203)

13/16 (21)

5 (127)

6-1/2 (165)

11-1/2 (292)

615,616

2

6-15/16 (170)

3-1/2 (89)

4-3/8 (111)

1 (25)

4 (102)

9-3/8 (238)

13/16 (21)

6-1/2 (165)

7 (176)

13-1/2 (343)

619,620 &624

2

9-3/8 (238)

3-1/2 (89)

4-3/4 (121)

1 (25)

4-1/8 (105)

9-7/8 (251)

13/16 (21)

6-1/2 (165)

7-1/2 (165)

14 (356)

Maximium working pressure 175 PSI (12 Bar)

21

FLANGES Check-Trol™ Isolation Flow Control Flange
Description
The Check-Trol flange is a combination isolation valve, flow control
valve, and companion flange for circulators. The ball valve allows
the circulator to be removed from the system without draining the
system. The internal spring check prevents gravity circulation. Free
floating companion flange makes pump installation a snap.
Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature: 200°F (93°C)
Materials of Construction
Valve Body: Lead-Free* Brass
Flange: Chrome Plated Steel
Ball: Chrome Plated Lead-Free* Brass
Packing: PTFE
Seat Ring: PTFE
Stem: Lead-Free* Brass
Spring Check: Nitrile, Acetal, Stainless Steel
*CSA certified to NSF/ANSI 372 that product contains less than
0.25% lead content by weight on wetted surface.

Companion
Flange

Flow Control
Valve

Isolation
Valve

Specifications
Model
Number

Size
Inches

101231LF

3/4” NPT x Flange

101232LF

1” NPT x Flange

101233LF

1-1/4” NPTx Flange

101245LF

1-1/2” NPT x Flange

101236LF

3/4” SWT x Flange

101237LF

1” SWT x Flange

101238LF

1-1/4” SWT x Flange

101247LF

1-1/2” SWT x Flange

Use with
Following
Circulators
ecocirc auto and vario

Dimensions - Inches (mm)
Following Circulators
A

B

B1**

C

D

Approx.
Shpg. Wt.
Ibs. (Kg)

3/4” NPT

3-7/64” (79)

2-27/64” (61.5)

2” (50.5)

4-23/32” (120)

3.4 (1.5))
4.4 (2.0)

1” NPT

3-15/16” (100)

2-57/64” (73.3)

2-5/32” (54.7)

4-23/32” (120)

1-1/4” NPT

4-25/32” (121.4)

3-19/64” (84)

3” (76.2)

6-7/32” (158)

6.3 (2.8)

NRF/NBF/SSF
Wet Rotors*

1-1/2” NPT

4-27/32” (122.9)

3-23/64” (85.5)

3” (76.2)

6-7/32” (158)

6.6 (3.0)

3/4” SWT

3-21/64” (84.5)

2-41/64” (67)

2” (50.5)

4-23/32” (120)

3.4 (1.5)

Series PL-30, PL-36,
PL-55

1” SWT

4-1/64” (102)

3” (75.3)

2-5/32” (54.7)

4-23/32” (120)

4.2 (1.9)

1-1/4” SWT

4-55/64” (123.4)

3-25/64” (86)

3” (76.2)

6-7/32” (158)

5.9 (2.7)

1-1/2” SWT

5-1/64” (127.4)

3-35/64” (90)

3” (76.2)

6-7/32” (158)

6.5 (3.0)

ecocirc XL 20-35,
36-45, 55-45

Series 100, PR and LR

* Not for use with NRF/NBF-45, HV flanges required.
Dimensions and weights are approximate and subject to change. Contact factory for certified dimensions. Check-Trol flange is sold with an isolation flange as a pair.
** B1 Dimension is overall length of isolation flange. The part numbers and shipping weights are for one Check-Trol flange and one isolation flange, capscrews and nuts.

22

ISOLATION FLANGES
Description
The isolation flange is a combination of an isolation ball valve and
a companion flange for circulators. The isolation flange allows easy
service or replacement of the circulator without the need to drain
the system. The isolation flange fits the Bell & Gossett NRF/NBF/SSF
wet rotors, Series PL, Series 100, HV, PR and LR circulators.
Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature: 250°F (121°C)
Materials of Construction
Valve Body: Lead-Free* Brass
Flange: Chrome Plated Steel
Ball: Chrome Plated Lead-Free* Brass
Packing: PTFE
Seat Ring: PTFE
Stem: Lead-Free*Brass
*CSA certified to NSF/ANSI 372 that product contains less than
0.25% lead content by weight on wetted surface.

Specifications
Dimensions - Inches (mm)
Following Circulators

Use with
Following
Circulators

Model
Number

Size
Inches

101221LF

3/4” NPTF IF

101222LF

1” NPTF IF

101223LF

1-1/4” NPTF IF

101241LF

1-1/2” NPTF IF

101226LF

3/4” SWT IF

101227LF

1” SWT IF

101228LF

1-1/4” SWT IF

101243LF

1-1/2” SWT IF

ecocirc auto and vario
ecocirc XL 20-35,
36-45, 55-45
NRF/NBF/SSF
wet rotors
Series PL-30,
PL-36, PL-55
Series 100, PR and LR
Does not include
NRF/NBF-45

A

B

C

D

Approx.
Shpg. Wt.
Ibs. (Kg)

3/4” NPT

2-27/64” (61.5)

2” (50.5)

4-47/64” (120)

3.2 (1.5)

1” NPT

2-57/64” (73.3)

2-5/32” (54.7)

4-47/64” (120)

4.1 (1.9)

1-1/4” NPT

3-19/64” (84)

3” (76.2)

6-7/32” (158)

5.8 (26)

1-1/2” NPT

3-23/64” (85.5)

3” (76.2)

6-7/32” (158)

6.1 (28)

3/4” SWT

2-41/64” (67)

2” (50.5)

4-23/32” (120)

3.2 (1.5)

1” SWT

3” (75.3)

2-5/32” (54.7)

4-23/32” (120)

3.9 (1.8)

1-1/4” SWT

3-25/64” (86)

3” (76.2)

6-7/32” (158)

5.4 (25)

1-1/2” SWT

3-35/64” (90)

3” (76.2)

6-7/32” (158)

6 (27)

Size
(NPT)

Master Carton of 12
Part No.

Set of 2
Part No.

3/4”

101011LF

101208LF

1”

101012LF

101209LF

1-1/4”

101013LF

101210LF

1-1/2”

101014LF

101211LF

1”

101015LF

101212LF

1-1/4”

101016LF

101213LF

1-1/2”

101017LF

101214LF

“IF” = “Isolation Flange”
Note: Dimensions and weights are approximate and subject to change. Contact factory for certified dimensions.
The part numbers and shipping weights are for two isolation flanges, capscrews and nuts.

Companion Flanges
Flanges for Cast Iron Circulators

Series 100, PR
NRF-22, NRF-9F/LW,
NRF-33, NRF-36
PL-30, PL-36, PL-55
ecocirc XL
Series HV, PL-45
PL-50, NRF-45
ecocirc XL

PL-75, PL-130/2”
ecocirc XL 15-75
PL-130/3”
ecocirc XL 40-275

Flanges for Bronze Circulators

Size
(NPT)

Master Carton of 12
Part No.

Set of 2
Part No.

3/4”

101001

101201

1”

101002

101202

1-1/4”

101003

101203

1-1/2”

101004

101204

1”

101005

101205

1-1/4”

101006

101206

1-1/2”

101007

101207

Size
(NPT)

Set of 2
Part No.*

2”

101215

2-1/2”

101219

3”

101217

Series 100B, PRAB,
NBF-22, NBF-12F/LW,
NBF-33, NBF-36
PL-30B, PL-36B
ecocirc XLB
Series HV, PL-45B
PL-50B, NBF-45
ecocirc XLB

PL-75B, PL-130B/2”
ecocirc XLB 15-75
PL-130B/3”
ecocirc XLB 40-275

*Includes Fasteners

Size
(NPT)

Set of 2
Part No.*

2”

101216LF

2-1/2”

101220LF

3”

101218LF

*Includes Fasteners

Union Connection for NBF Circulators

NBF-22U, NBF-12U/LW
NBF-9U/LW

Set of Two

Union
Connection

Model No.

1/2” sweat

UC-1/2S

113203LF

UC-3/4S

113201LF

3/4” sweat
3/4” NPT

Part No.

UC-3/4NPT 113202LF
23

3
CONTROLS ecocirc e SERIES TIMER
®

Description
To increase the overall efficiency of a domestic hot water recirculating system and to reduce water
wasted while waiting for hot water, the e3 Timer can be installed on all e3 pumps. The timer is easily
installed by removing the motor end cap, plugging in the timer and setting the timer schedule
without any wiring. The timer can be used in 3-different selections: ON, OFF and TIMER. The ON
selection operates the pump continuously, the OFF selection turns the pump OFF and the TIMER
selection (depicted by a clock on the timer) turns the pump on when programmed.
Operational Limits
Power Supply: Internally powered by the e3 circulating pump
Minimum Switch Interval: 30 minutes
Run Modes: ON (Continuous), OFF (Off at all times) and TIMER
(run at programmed intervals)

1.95”
(49.6)

3.49”
2.53” (88.7)
(62.3)

2.56”
(65)

2.30”
(58.4)

2.80”
(71.1)

e3 Timer
(Part No. LHB08260002)

Pump not included

CONTROLS for NBF Circulators

TC-1 Automatic Timer Kit (Part No. 113210)
To increase the overall efficiency of a hot water recirculation
system, the TC-1 timer control kit can be installed for use on any
B&G NBF circulator. The TC-1 timer control is programmable to
turn the circulator ON and OFF automatically at preset times. This
permits the user to have the pump circulate hot water only during
those times when high usage can be expected throughout the
day. Power supply minimum interval switch is 15 minutes.
Run modes maximum switch current is 16 amps.

24

AQS-1/2 (Part No. 113223) and
AQS-3/4 (Part No. 113224) Aquastat
Designed to thermostatically turn any B&G NBF circulator ON and
OFF. The AQ-1/2 or AQ-3/4 will switch the pump OFF at 120ºF
(48.9ºC) and ON at 100ºF (37.8ºC). The aquastats are available
in separate models that will sense the temperature for either
1/2” or 3/4” copper pipe.
AQS-1/2” clips onto 1/2” copper pipe or 3/8” steel pipe
AQS-3/4” clips onto 3/4” copper pipe or 1/2” steel pipe

RELAYS ZONETROL II AZ-1A™ Snap-On Pump Relay
Description
The ZONETROL II AZ-1A snap on relay box is an easy to install single zone
pump controller that mounts directly on any Bell & Gossett wet rotor circulator
NRF/NBF or Series PL booster. The AZ-1A turns the pump and boiler ON as
thermostat calls for heat. Using the wire nuts provided with the package, the
AZ-1A is quickly assembled onto any NRF/NBF or 1/12 to 1/6 HP Series PL.
The clearly marked TT terminals for the thermostat and the XX isolated end
switch terminals make the rest of the hook-up a snap. The AZ-1A can be
daisy-chained together to form a maximum of three zones.
The Bell & Gossett AZ-1A is ideal for any single to three zone pump
application. Or can be used when adding a zone to an existing system. There’s
no more need to have a pump controller hanging on the wall, simply install
the AZ-1A to our NRF/NBF or Series PL circulators and you are finished.

Features
•	 Snap-on design allows the AZ-1A to be quickly attached 		
to any B&G wet rotor circulator, reducing your inventory 		
investment (no need to carry “special” circulators with 		
factory mounted controllers)
•	 Clearly marked terminals make for sure, fast wiring of 		
the system
•	 Compact design fits in tight locations and presents a 		
clean professional appearence
•	 100% factory tested assures reliable operation
•	 5 year warranty — the best in the industry
•	 Daisy-Chain the AZ-1A relays to form up to three zones
•	 Can be used on any B&G model NRF, NBF or 1/12 to 1/6 		
HP Series PL pumps

The AZ-1A can be
daisy-chained to
form up to three
zones with
simplified wiring.

Specifications

Dimensions (L x W x H): 2-7/8” X  3-1/4” X 2-5/8”
Approximate Shipping Weight: 0.75 lbs

Thermostat

Thermostat

Thermostat

/

/

/

Low voltage
wiring makes
multiple relay
connections
a snap.

AZ—1A

115V

AZ—1A

115V

AZ—1A

115V

25

RELAYS ZONETROL™ Switching Relays
for Zoning with Valves
Features
• 100% factory tested - guarantees operation
• Five year limited warranty - the best in the business
• Replaceable, standard “ice cube” type relays allow up to 10 amps, 		
1/3 HP per individual zone
• Selectable priority for domestic hot water
• 30 minute built-in priority timer helps prevent house freeze up - no additional
plug-in cards required
• Automatically resetable fuse protects controller from overload - eliminates
“no heat” call backs due to blown fuse
• Powerful transformers operate up to six zones
• LED diagnostic lights installed internal to the box cover keeps the trouble
shooting in the hands of the authorized heating professionals
• Can be used with “tankless coil” or “cold start” applications
Specifications
Model
Number

Part
Number

Zones

Priority
Feature

Transformer
Output
at 24 Volts

Relay
Switching
Action

Each End
Switch Contact
Rating

ZTV-4

109407

4

yes

40 VA

DPDT

ZTV-6

109408

6

yes

75 VA

DPDT

5A, 1/8 HP
@ 120VAC

Dimension
W x H x D (inches)

Approx.
Shpg. Wt.
(lbs.)

9-1/4 x 7-1/4 x 2-3/4

4.6

11-3/8 x7-1/4 x 3-3/4

6.9

RELAYS ZONETROL II Switching Relays
with Reset Option for Zoning with Pumps
Description
Bell & Gossett’s ZoneTrol II is a ready-to-install controller for hydronic
circulators in residential and light commercial applications. All ZoneTrol II
controllers are UL and cUL listed and feature multi-function LEDs that are
visible without removing the cover for easy start-up and troubleshooting.
All units are compatible with analog and digital 24 VAC thermostats,
including “power stealing” designs. The multi-zone controllers feature an
advanced microprocessor design that provides domestic hot water (DHW)
priority & timer, pump exercise and a post purge timer without the need
for add-on circuit boards or modules.

The next generation of zone controllers
from Bell & Gossett brings 21st century
technology to residential controls.

Four and six zone controllers are field expandable for up to 18 pumps.
Standard Features (multiple zone controllers only)
• Priority: Enables DHW zone to have priority over heating zones for limited period of time. User adjustable settings include OFF (disables priority
functionality), 30 minutes and 60 minutes.
• Post Purge Timer: Circulator(s) will continue to run for 90 seconds after thermostat opens and allows additional extraction of BTUs from high
mass boilers. User adjustable settings are OFF and ON.
• Exercise: Runs each circulator for 10 seconds after each 72 hours of inactivity. User adjustable settings are ON and OFF.
• Expandability: 4 and 6 zone controllers can easily be connected via a ZC-11 cable to accommodate systems consisting of up to 18 circulators.
• Five-year Warranty
Specifications
Model
Number

Part
Number

Zones

Combined Load
(max.) @ 120 VAC

Dimensions W x L x D
Inches (mm)

Weight
Lbs (kg)

Z-1

109424

Z-2

109425

1

5 amps

6.5 x 5 x 3 (165 x 127 x 76)

2.6 (1.18)

2

20 amps

6.5 x 5 x 3 (165 x 127 x 76)

Z-3

3 (1.36)

109426

3

20 amps

6.5 x 5 x 3 (165 x 127 x 76)

3.1 (1.4)

Z-4

109427

4

20 amps

13.5 x 8.25 x 3.25 (343 x 210 x 83)

7.3 (3.3)

Z-6

109430

6

20 amps

13.5 x 8.25 x 3.25 (343 x 210 x 83)

ZC-11*

109454

Communication cable for connection of multiple controllers

* fits 4 and 6 zone controllers only – one required for each slave controller.
26

7.5 (3.4)
0.1 (0.05)

VALVES Snap Zone™ Valve
Description
Snap Zone valves are precision engineered four wire thermoelectrically operated valves
designed for heating and cooling systems. The valve opens and closes based upon the
voltages applied to the actuator. Use the Bell & Gossett Snap Zone Valves to speed
installation time and reduce callback times to customers. The actuator can be installed
or removed at any angle on the adapter ring. The compact design and universality in the
actuator mounting position allows for easy installation in the most difficult positions.
Operating Data
Maximum Operating Temperature: 212°F (100°C)
Minimum Operating Temperature: 32°F (0°C)
Maximum Operating Pressure: 240 PSI
Maximum Differential Closeoff: 60 PSI
Open/Close Speed: 3 min.
Electrical Rating: 24V 60Hz
Power Consumption: 1.8W, 75mA (6 per 40VA)
End Switch Rating: 1.0A @ 24VAC
Materials of Construction
Body: Forged Brass
Bonnet/Packing Box: Brass
Plunger Assembly: Brass, EPDM Seals
Stem: Stainless Steel
Union Nuts: Brass
Tailpieces: Brass
O-Rings: EPDM
Actuator: Polyamide Housing
Cable: PVC

Model Number Naming Convention

Cv Ratings
Snap Zone Size

1/2”

3/4”

1”

Cv

1.8

2.8

2.8

SZV

Snap Zone Valve

050

Body Size
050 = 0.500”
075 = 0.750”
100 – 1.000”

N

Connection Type
S = Sweat Body
N = FNPT Threaded

4W

Actuator Type
4W = 4 Wire

E

End Switch
E = Endswitch

Specifications

Model Number

Part Number

Dimensions, in inches (mm)

Description

Shipping
Weight,
lbs (kg)

D

X

Y

Z

SZV-050S-4WE

109500

½” SWT Zone Valve, 4 Wire

1.59 (40.3)

3.48 (88.5)

3.55 (90.2)

4.24 (107.7)

1.4 (0.6)

SZV-075S-4WE

109501

¾” SWT Zone Valve, 4 Wire

2.02 (51.3)

4.28 (108.7)

3.55 (90.2)

4.42 (112.5)

1.4 (0.6)

SZV-100S-4WE

109502

1” SWT Zone Valve, 4 Wire

2.24 (56.9)

4.28 (108.7)

3.55 (90.2)

4.52 (114.9)

1.4 (0.6)

SZV-050N-4WE

109506

½” NPT Zone Valve, 4 Wire

1.59 (40.3)

3.58 (91.0)

3.55 (90.2)

4.24 (107.7)

1.4 (0.6)

SZV-075N-4WE

109507

¾” NPT Zone Valve, 4 Wire

2.02 (51.3)

4.18 (106.1)

3.55 (90.2)

4.42 (112.5)

1.4 (0.6)

SZV-100N-4WE

109508

1” NPT Zone Valve, 4 Wire

2.24 (56.9)

4.44 (112.7)

3.55 (90.2)

4.52 (114.9)

1.4 (0.6)

SZV-050S-000

109512

½” Sweat Body

1.59 (40.3)

3.48 (88.5)

–

–

1.0 (0.4)

SZV-075S-000

109513

¾” Sweat Body

2.02 (51.3)

4.28 (108.7)

–

–

1.0 (0.4)

SZV-100S-000

109514

1” Sweat Body

2.24 (56.9)

4.28 (108.7)

–

–

1.0 (0.4)

SZV-050N-000

109515

½” NPT Body

1.59 (40.3)

3.58 (91.0)

–

–

1.0 (0.4)

SZV-075N-000

109516

¾” NPT Body

2.02 (51.3)

4.18 (106.1)

–

–

1.0 (0.4)

SZV-100N-000

109517

1” NPT Body

2.24 (56.9)

4.44 (112.7)

–

–

1.0 (0.4)

SZV-000-4WE

109518

4 Wire Actuator w/ES

–

0.4 (0.2)
27

BALANCE VALVES Lead-Free* Circuit Setter® Plus
Description

Materials of Construction

The Circuit Setter Plus and Circuit Setter Plus RF
provide the perfect balance of adjustability and
efficiency for potable water and HVAC systems.
They are precisely calibrated for use as a
presettable balance valve, variable orifice flow
meter and positive shut-off service valve. They
are also designed for optimal system efficiency
and water conservation. The Circuit Setter Plus
and Circuit Setter Plus RF can provide the perfect
balancing solutions for your potable water and
HVAC system.

Body: Brass ASTM B283-C69300*
Ball: 304 Stainless Steel
Seat Rings: Glass and Carbon filled TFE
Readout Valves: Brass with EPT check valves
Stem “O” Ring: EPDM

CB-1SLF

Maximum Working Pressure
NPT Models: 400 PSIG (2758 kPa)
Sweat Models: See table below

CB-1LF

Maximum Operating Temperature
Save time, energy and water with the lead-free
Circuit Setter Plus and Circuit Setter Plus RF.

-4°F (-20°C) to 250°F (121°C)

• Designed for all plumbing and HVAC systems.
• Provides equal flow throughout all circuits to 	
conserve water and optimize system efficiency.
• Calibrated accurate flow control and
measurement.
• Bi-directional design allows any installation
configuration.
• Externally adjustable manual balance
valve for easy adjustment.
• Reduces pump energy requirements.
• Meets or exceeds stringent codes for
potable water.
• Includes memory stop indicator.
• Provides drain option.
• Provides positive shut off and isolation.
• Includes pressure/temperature ports.

*CSA certified to NSF/ANSI 372 that product contains less than
0.25% lead content by weight on wetted surface.

Type Solder

95-5
Tin-Antimony

Maximum Pressure Limitations
for 1/2” - 1” with Solder Connections
Pressure PSI kPa

Temp ºF (ºC)

300 (2068)

200 (93)

250 (1724)

225 (107)

200 (1379)

250 (121)

A

A

C

C
B

B
TOP VIEW 1/2"-1"

END VIEW 1/2"-1"

TOP VIEW 11/4”-3”

Specifications
Model
Number

Part
Number

RF-1/2S LF

117410LF

RF- /4S LF
CB-1/2S LF
CB-3/4S LF
CB-1S LF
CB-11/4S LF
CB-11/2S LF
CB-2S LF
CB-1/2 LF
CB-3/4 LF
CB-1 LF
CB-11/4 LF
CB-11/2 LF
CB-2 LF
CB-21/2 LF
CB-3 LF

117411LF
117412LF
117413LF
117401LF
117402LF
117403LF
117404LF
117414LF
117415LF
117416LF
117103LF
117104LF
117105LF
117106LF
117107LF

3

Size

Connection
Type

1

Sweat

A
2.91 (73.9)

3

Sweat
Sweat
Sweat
Sweat
Sweat
Sweat
Sweat
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT

3.51 (89.2)
2.91 (73.9)
3.51 (89.1)
4.29 (109)
4.91 (124.7)
5.21 (132.3)
6.31 (160.3)
2.94 (74.7)
3.06 (77.7)
3.81 (96.8)
4.41 (112)
4.42 (112.3)
5.13 (130.3)
6.00 (152.4)
6.50 (165.1)

/2"
/4"
1
/2"
3
/4"
1"
11/4”
11/2”
2”
1
/2"
3
/4"
1"
11/4”
11/2”
2”
21/2”
3”

Dimensions** in Inches (mm)
B
C
1.82 (46.2)
2.85 (72.4)
2.05 (52.1)
1.82 (46.2)
2.05 (52.1)
2.33 (59.2)
3.08 (78.2)
3.27 (83)
3.83 (97.3)
1.98 (50.3)
2.17 (55.1)
2.47 (62.7)
3.19 (81)
3.37 (85.6)
3.98 (101.1)
4.51 (114.6)
5.12 (130.0)

3.10 (78.7)
2.85 (72.4)
3.10 (78.7)
3.33 (84.6)
3.69 (93.7)
3.95 (100.3)
4.44 (112.8)
3.02 (76.7)
3.12 (79.2)
3.42 (86.9)
3.69 (93.7)
3.95 (100.3)
4.44 (112.8)
4.83 (122.7)
5.44 (138.2)

** All dimensions +/-0.125 (3.2 mm) tolerance. Dimensions are subject to change. Not to be used for construction purposes unless certified.

28

Weight
in lbs. (kg)
0.6 (0.27)
0.75 (0.34)
1 (0.45)
1.25 (0.6)
2 (0.91)
3.5 (1.6)
3.8 (1.7)
6.2 (2.8)
1.25 (0.6)
1.5 (0.7)
2 (0.9)
3.5 (1.6)
3.8 (1.7)
6.2 (2.8)
9 (4.1)
12 (5.4)

END VIEW 11/4”-3”

BALANCE VALVES Circuit Sentry Flo-Setter
TM

Description

TM

Circuit Sentry Flo-Setter

New GPM dial

The Circuit Sentry Flo-Setter valve is a field adjustable
pressure independent flow limiter that maintains set
flow rates regardless of pressure fluctuations in the
system; eliminates overflow.
• The unique GPM dial is easy to set.
Requires no instruments, charts or wheels
• Saves pump energy and improves coil efficiency
• No minimum straight pipe lengths required
• Integrated pressure / temperature ports included
• Large open flow paths for clog-free operation
• Integrated isolation/shut-off capability
Circuit Sentry Flo-Setter Specifications
Materials of Construction
DIMENSIONS* IN INCHES (mm)
Model
Part
Connection
Size
Body: DZR Brass
Number Number
Type
A
B
C
D**
E**
Flow Setting: PA6 20% Glass
NPT
2.9
5.6
3.4
2.24 1.12
Spring: Stainless Steel
FS-1/2
117630
1/2"
Female
(75)
(144)
(87)
(57) (28)
Diaphragm: HNBR
NPT
3.1
5.6
3.4
2.24 1.12
FS-3/4
117632
3/4"
O-Rings: EPDM
Female
(79)
(144)
(87)
(57) (28)
NPT
3.9
6.8
4.3
2.54 1.27
Maximum Working Pressure
FS-1
117643
1"
Female
(100) (173) (110) (65) (33)
375 PSIG (2585 kPa)
NPT
4.0
7.0
4.3
2.54 1.27
FS-1-1/4
117636 1 1/4"
Female
(104) (178) (110) (65) (33)
Maximum Operating Temperature
NPT
5.4
7.9
5.1
3.60 1.80
14°F (-10°C) to 248°F (110°C)
FS-1-1/2
117637 1 1/2"
Female
(138) (201) (131) (92) (46)
Control Range
5.4
8.1
5.1
3.60
1.8
NPT
FS-2
117638
2"
(138) (207) (131) (92) (46)
Female
Maximum 58 PSI (399 kPa) Delta P
Accuracy
+/ - 5%

Flow Capacity
in GPM (L/hr)
Min.

Max.

Approx.
Weight
lbs. (kg)

0.26
(60)

4.75
(1,080)

1.1
(0.5)

0.45
(102)

8.50
(1,930)

1.3
(0.6)

060
(136)

10.56
(2,400)

2.8
(1.3)

0.88
(200)

22.01
(5,000)

3.1
(1.4)

3.17
(719)

32.58
(7,400)

6.6
(3.0)

3.96
(900)

45.57
(10,350)

7.5
(3.4)

Model AF

Model AF Specifications (includes union tailpiece)
Model
Number

AF-1/2

AF-3/4

AF-1

AF-1-1/4

AF-1-1/2

AF-2

Valve Size
Fixed End

Connection Fixed
End

Flow Capacity in GPM
(L/hr)

DIMENSIONS* IN INCHES (mm)
B

C

Min.

Max.

Sweat Female

5.6
(144)

3.4
(87)

2.24
(57)

1.12
(28)

5.6
(142)

1.55
(39)

0.26
(60)

4.75
(1,080)

1.2
(0.5)

NPT Female

5.6
(144)

3.4
(87)

2.24
(57)

1.12
(28)

5.0
(127)

1.55
(39)

0.26
(60)

4.75
(1,080)

1.2
(0.5)

Sweat Female

5.6
(144)

3.4
(87)

2.24
(57)

1.12
(28)

6.3
(160)

1.55
(39)

0.45
(102)

8.50
(1,930)

1.5
(0.7)

NPT Female

5.6
(144)

3.4
(87))

2.24
(57)

1.12
(28)

5.3
(135)

1.55
(39)

0.45
(102)

8.50
(1,930))

1.5
(0.7)

Sweat Female

6.8
(173)

4.3
(110)

2.54
(65)

1.27
(33)

7.6
(193)

2.00
(51)

0.60
(136)

10.56
(2,400)

3.1
(1.4)

NPT Female

6.8
(173)

4.3
(110)

2.54
(65)

1.27
(33)

6.4
(163)

2.00
(51)

0.60
(136)

10.56
(2,400)

3.1
(1.4)

Sweat Female

7.0
(178)

4.3
(110)

2.54
(65)

1.27
(33)

7.9
(201)

2.00
(51)

0.88
(200)

22.01
(5,000)

3.6
(1.6)

NPT Female

7.0
(178)

4.3
(110)

2.54
(65)

1.27
(33)

6.7
(170)

2.00
(51)

0.88
(200)

22.01
(5,000)

3.6
(1.6)

Sweat Female

7.9
(201)

5.1
(131)

3.60
(92)

1.8
(46)

10.6
(269)

2.52
(64)

3.17
(719)

32.58
(7,400)

7.6
(3.4)

NPT Female

7.9
(201)

5.1
(131)

3.60
(92)

1.8
(46)

9.2
(234)

2.52
(64)

3.17
(719)

32.58
(7,400)

7.6
(3.4)

Sweat Female

8.1
(207)

5.1
(131)

3.6
(92)

1.80
(46)

11.7
(297)

3.14
(80)

3.96
(900)

45.57
(10,350)

8.7
(3.9)

NPT Female

8.1
(207)

5.1
(131)

3.6
(92)

1.80
(46)

9.7
(246)

3.14
(80)

3.96
(900)

45.57
(10,350)

8.7
(3.9)

1/2"

3/4"

1"

1 1/4"

1 1/2"

2"

E**

G Max***

T Max***

Approx. Weight
lbs. (kg)

D**

*All dimensions +/- 0.125” (3.2 mm) tolerance. Dimensions are subject to change. Not to be used for construction purposes unless certified.
**Dimension is of maximum width of the handle or body, whichever is greater.
***Includes tailpiece. Measurement of maximum length tailpiece available.
For minimum differential requirements please refer to submittal A-611 on our website. Maximum differential pressure is 58 PSID.
Minimum temperature is 14°F (-10°C) to 248°F (120°C). Maximum operating pressure is 375 PSI.
NOTE: Model AF valves are configured valves and therefore have no part numbers. They include union tail pieces and can be selected to include optional ball isolation/shut-off valve.

29

VALVES Flo-Control™ Valves
Description
Flo-Control valves prevent gravity flow in forced hot water
systems, and permit summer/winter operation of indirect
water heaters.
Features
•	 Combination straight/angle configurations in sizes
	 3/4” to 2” for ease of installation.
		
•	 Removable cap allows easy cleaning and service 		
	 without removing pipe connections.
•	 Manual operating position for vertical lift disc to
	 permit gravity circulation.

Angle Pattern

Straight-Angle Pattern

2-1/2”, 3”

3/4”, 1”, 1-1/4”, 1-1/2”, 2”

Bronze Straight

Straight Pattern

Pattern 3/4”

2-1/2”, 3”, 4”

Operating Data
Maximum Working Pressure: 125 PSIG (862 kPa)
Maximum Operating Temperature: 250°F (121°C)

Specifications

B

A

D

E

Sizes 3/4”
Bronze Straight Valve

30

C

Sizes 3/4”, 1”, 1-1/4”, 1-1/2”
Straight Angle Valves

Sizes 2”
Straight Angle Valves

Sizes 2-1/2”, 3”
Angle Valves

Sizes 2-1/2”, 3”, 4”
Straight Valves

VALVES Hydrotrol™ Flow Control Valves
Description
The Hydrotrol (HT) flow control valve is used to prevent overheating of zones
due to gravity flow in hydronic heating systems and will permit summer-winter
operation of indirect water heater. The HT valve allows fluid to pass when the
system or zone pumps start. When the system or zone pumps are not operating,
the HT valve remains closed, preventing gravity circulation. The HT valves are
designed with a 1/2 turn knob that can be manually opened when draining
the system or for bypass purposes. The HT valve can be installed in either the
horizontal or vertical orientation.
Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
Maximum Operating Temperature: 250°F (121°C)
Materials of Construction
Body: Brass
Internal Components: Non-Ferrous
Specifications
Model
Number

E

F

Approx.
Shpg. Wt.
lbs. (Kg)

1-3/4" (44)

1-11/16" (43)

1.3 lbs. (0.6)

1-11/16" (43)

1.2 lbs. (0.5)

1-7/8" (48)

1.8 lbs. (0.8)

Dimensions — Inches (mm)

Part
Number

A

B

HT-3/4

107035

3/4" NPTF

3-3/16" (82)

C
3" (76)

HT-1

107037

1" NPTF

3-5/8" (93)

3-3/16" (82)

HT - 1-1/4

107038

1-1/4" NPTF

4" (101)

D
1-9/16" (40)

1-9/16" (40) 1-15/16" (50)

3-11/16" (93) 1-11/16" (43)

2-1/4" (57)

Do not use for construction. Dimensions are approximate and subject to change. Contact factory for certified dimensions.

VALVES DB–Differential Bypass Valve
Description

For hydronic systems utilizing zone valve

The differential bypass valve is used in systems where heating
loads may be excluded from the circuit as zone valves close.
It controls the excess flow in the system by acting as a bypass
while ensuring adequate flow to the remaining open circuits.
The differential bypass valve helps reduce velocity noise
caused by excess flow through the circuits while maintaining
the pump head at a constant value.

•	 Controls excess flow in the system when there
	 is reduction in demand
•	 Available in 3/4” connection
•	 All brass body with non-ferrous internals

Operating Data
D

Maximum Working Pressure: 150 PSIG (1,034 kPa)
Maximum Operating Temperature: 230°F (110 °C)
Adjustment Range: 2 to 10 PSI

A
C

Materials of Construction
Valve Body: Brass
Seals: EPDM
Spring: Stainless Steel
Knob: ABS

A
B

Specifications
Model
Number

Part
Number

A
(mm)

B
(mm)

C
(mm)

D
(mm)

DB-3/4

113247

3/4”
(19)

2-5/16”
(59)

1”
(26)

4”
(104)

Connection Weight (LB)
Type
M
NPT

1

31

VALVES Pressure Reducing Valves
Description

FB-38

Reducing valves fill the system
to a preset pressure for optimum
performance.

• Fast fill feature reduces
start-up time and labor.
• Low inlet pressure check valve
helps prevent loss of system
pressure if the supply water
drops below system pressure.

• 	Union connection available 	
with 1/2” male NPT thread and
1/2” female sweat tail-piece for
fast, flexible system connection.

PRESSURE REDUCING VALVES

FB-38TU

Body
Material

Conncection
Size - Inches

1/2
110190
B-38
3/4
110196
B7-12
1/2
110191
B-38TU
1/2
Brass
110192
FB-38
1/2
110193
FB-38TU
1/2
110194
6
3/4
110195
7
* Models ending in "TU" feature 1/2" sweat/NPT union connection

Features

• Convenient cleanable strainer 	
is designed to prevent dirt and
sediment from entering the
system.

Part
Number

Model
Number

F-3TU

NPT
Union*
NPT
Union*
NPT

B-38TU

B-38

Factory
Setting
(PSIG)

Adjustable
Range
(PSIG)

12

10 - 25

45

25 - 60

Dimensions in Inches (mm)

A
3 1/16 (78)
3 (76)
4 31/32 (126)
3 1/16 (78)
4 31/32 (126)
3 1/16 (78)
3 (76)

B
4 13/16 (122)
4 31/32 (126)

C
3 11/16 (94)
3 21/32 (93)

4 13/16 (122)

3 11/16 (94)

4 31/32 (126)

3 21/32 (93)

Specifications for Combination “Dual Units”
Model
Number

Part
Number

8

110199LF

F-3

110197LF

F-3TU

110198LF

Component
Valves
Relief
B-38
Relief
FB-38
Relief
FB-38TU

COMBINATION "DUAL UNITS"
Connection in Inches
Body
Fill
Boiler
Material

Lead-Free
Brass

1/2 NPT

Dimensions in Inches (mm)
Overall
Between
Height
Connections

1/2 NPT

6 7/16 (164)

1/2 NPT

6 7/16 (164)

1/2 Union
NPT/Sweat

8 5/8 (219)

5 3/8 (137)
6 (152)

Approx.
Shpg. Wt.
lbs. (Kg)
4 (1.8)
3 3/4 (1.7)
4 (1.8)

PRESSURE SETTING:
Relief 30 PSI
Reducing 12 PSI standard; field adustable range: 10 - 25 PSI
Maximum operating temperature 225°F (107°C) - Maximum operating pressure 125 PSIG (862 kPa)
meets NSF
Brass
Lead-Free
*CSA
certified
to NSF/ANSI
372 372
that certification
product contains less than 0.25% lead content by

weight on wetted surface.
Models ending in TU feature 1/2” sweat/NPT union connection.

• Lead-Free brass body construction
is ideal for potable water systems.
Specifications for Pressure Reducing Valve
Model
Number

NSF/ANSI 372

Part
Number

Models 3301 & 4100
Iron Body Valves

ASME Safety Relief Valves
Model
Description
Number

Part
Number

ASME Safety Relief Valves protect fired and unfired hot water
vessels against hazardous operating pressures.
Features
• Engineered in accordance with Section IV of the ASME 		
boiler and pressure code for heating boilers with capacities 	
certified by the National Board of Boiler and Pressure
Vessel Inspectors.
• Offer the highest BTUH ratings available on the market 		
today for valves in their class (790,000 to 5,999,000 BTUH)
• EPDM diaphragm operated (cast iron models) and 	
diaphragm assisted (bronze models) have an effective
area approximately 5 times greater than conventional
“pop-type” relief valves to help overcome the effects of fouling.
• Low differential between opening and closing pressures 		
helps to prevent conditions under which system water 		
might flash to steam and cause hammering.
Specifications
Model
Number

32

Body

Nos. 3301 & 4100

Nos. 790 & 1170

Models 790 & 1170
Bronze Body Valves

ACCESSORIES Copper Red Ring Monoflo® Fittings
Description
Copper Red Ring Monoflo Fittings let you use
a single pipe to serve as both supply and return main.
Features
• Connect risers to the main, assuring proper diversion of water
to each heating unit regardless of type and its position 		
in the system.
• Recommended for most installations including cast iron
non-ferrous base boards, free-standing radiation or convectors.
• Only one fitting is needed for most installations for adequate
diversion for upfeed radiation. For most applications, a second
fitting can be used if higher resistance is required.
Operating Data
Maximum Working Pressure: 150 PSIG (1,034 kPa)
Maximum Operating Temperature: 300°F (149°C)
Specifications
Part Number

Size
Inches

108119

3/4 x 1/2***

108120

1 x 1/2

108121

Dimensions-Inches (mm)*

Cv Ratings**

B

1 FTG

2 FTG

Approx. Shpg.
Wt. lbs. (Kg)

2-7/32 (56)

1 (25)

4.2

––

1/4 (0.1)

2-9/16 (65)

1-5/32 (30)

1 x 3/4

2-3/4 (70)

1-3/8 (35)

14.5

8.7

108122

1-1/4 x 1/2

2-3/4 (70)

1-7/32 (31)

108123

1-1/4 x 3/4

2-27/32 (72)

1-3/8 (35)

24.0

15.5

108124

1-1/2 x 3/4

3-3/32 (78)

1-11/16 (42)

108125

1-1/2 x 1

3-3/8 (86)

1-11/16 (42)

39.0

25.0

1-1/4 (0.6)

108126

2 x 3/4

3-1/2 (89)

1-27/32 (47)

108127

2x1

3-13/16 (97)

2-1/32 (52)

80.0

55.0

1-3/4 (0.8)

A

1/2 (0.2)

* Do not use for construction. Dimensions are approximate and subject to change. Contact factory for certified dimesions.
** With Side Branch plugged.
*** Return only.

AIR SEPARATORS Inline Air Separator
Description

Operating Data

The B&G In-Line Air Separator
is specificaly designed to
efficiently separate air from
circulating water in hydronic
heating and cooling systems to
assure a quiet operation.

Maximum Working Pressure: 175 PSIG (1,207 kPa)
Maximum Operating Temperature: 300°F (149°C)
Materials of Construction
One Piece Cast Iron
Specifications
Model
Number

Part
Number

33

AIR SEPARATORS EASB-Jr Enhanced Air Separator
Description

Dimensions & Weights

Operating Data

Bell & Gossett’s Model EASBMaximum Working Pressure: 150 PSI (10 bar)
JR Enhanced Air Separator
Maximum Operating Temperature: 250°F (121°C)
automatically removes entrained
air bubbles in hydronic systems. As
Materials of Construction
fluid enters the EASB-JR, the velocity
is decreased creating a low pressure Body & Cap: Brass
area. The small bubbles are released Coalescing Medium: Stainless Steel
from fluid and then collected on the Venting Mechanism: Non-Ferrous
coalescing medium. As the bubbles
coalesce, they rise to the top of the
air separator where they are released
to atmosphere through the built-in
Specifications
automatic air vent. The air separator
Part
Model
has a bottom 1/2” NPT connection
Number
Number
Size
A
B
to accommodate a B&G diaphragm
3/4" NPT
EASB-3/4 JR
112111
67/8 (175)
15/8 (41)
expansion tank. The compact design EASB-3/4S JR 112114 3/4" Sweat 67/8 (175) 15/8 (41)
EASB-1 JR
112112
1" NPT
67/8 (175)
15/8 (41)
and brass body construction make
7/8 (175)
EASB-1S
JR
112115
1"
Sweat
6
15/8 (41)
the EASB-JR ideal for residential
EASB-11/4 JR
112113
11/4" NPT
71/2 (191)
17/8 (48)
and commercial hydronic heating
EASB-11/4S JR 112116 11/4" Sweat 71/2 (191)
17/8 (48)
systems.
EASB-11/2 JR
112117
11/2" NPT
71/2 (191)
17/8 (48)
EASB-2 JR

112464

2" NPT

71/2 (191)

2 (51)

Dimension in Inches (mm)
C
D
E
113/16 (46)
35/8 (92)
21/4 (57)
35/8 (92)

21/4 (57)

Sweat

2.5 (1)

113/16 (46)
113/16 (46)
25/16 (59)
25/16 (59)

35/8 (92)
35/8 (92)
45/8 (117)
45/8 (117)

21/4
21/4
31/8
31/8

(57)
(57)
(79)
(79)

1" NPTF
1" Sweat
11/4" NPTF
11/4" Sweat

2.5 (1)
2.5 (1)
4 (1.8)
4 (1.8)

25/16 (59)
21/2 (64)

45/8 (117)
5 (127)

31/8 (79)
31/8 (79)

11/2" NPTF
2" NPTF

4 (1.8)
5 (2.3)

Enhanced Air Separator
Specifications

Bell & Gossett’s Model EAS Enhanced Air
Separator is a patented, innovative design in air
separators. It has been engineered to remove
entrained air from hydronic heating and cooling
systems providing far superior air removal
compared with other devices available today.
The EAS is ideal for residential, institutional
and light commercial applications.
Operating Data
Maximum Working Pressure: 150 PSI (10.3 bar)
Maximum Operating Temperature: 250°F (121°C)
Materials of Construction
Body & Cap: Cast Iron
Internals: Stainless Steel
3/4” Large Capacity Air Vent: Brass Body Nonferrous Internals

How It Works
1 	As system fluid enters		
	 through the inlet, (either 		
	 straight or angle) the diffuser
	 distributes flow evenly across 		
	 the stainless steel, wire 		
	 brush-like medium.
2 Air bubbles, even micro air
	 bubbles, stick to the brush
	filaments.
3
	
	
	
	

Trapped air rises above the 		
diffuser through a baffle (not 		
pictured), where the air is 		
then released through 		
an opening on top.

4 Deaerated water then goes 		
	 back into the system.

34

3/4"

Approx. Shpg. Wt.
Lbs. (Kg)
2.5 (1)

113/16 (46)

Dimensions are approximate and subject to change. Contact factory for certified dimensions.

Description

F
3/4" NPTF

HYDRONIC SPECIALTIES
RV-125A Readout Valve and
RP-250B Readout Probe

TB– Thermoflo® Balancer

The RV-125A is designed
for use wherever pressure
tappings are required to
monitor flow or pressures.
The Readout Valve is fitted
with an EPT insert which
incorporates a unique check
valve feature designed
RP-250
RV-125
to check flow when the
Readout Valve is not being
used to monitor flow. Use companion RP-250B
Readout Probes with the RV-125A Readout
Valve. 300 PSIG Working Pressure —
250ºF Maximum Operating Temperature

A device for instant visual balancing
of hot or cold water flows. With a
B&G Thermoflo balancer installed
in each circuit or zone, the entire
system can be quickly balanced to
meet original design calculation.
No. TB-3/4”- Capacity 1 to 5 GPM.
No. TB-1”- Capacity 2 to 10 GPM.
125 PSIG Working Pressure —
250ºF Maximum Operating
Temperature

DT-2 Drain-O-Tank®
Air Charger
The Drain-O-Tank Air Charger offers a
sure, quick way to recharge a waterlogged compression tank.
125 PSIG Working Pressure —
240ºF Maximum Operating
Temperature

AIR VENTS
No. 26 Vacuum Breaker

Model No. 107A High
Capacity Air Vent

No. 97 Automatic 
Air Vent

A rugged High Capacity Air Vent
designed to purge free air from
liquid systems at operating
pressures up to 150 PSIG.
The Model 107A Air Vent has
a cast iron body and bonnet,
with stainless steel, brass and
EPDM internal components
and is suitable for a maximum
operating temperature of
250ºF. The Air Vent has a 3/4”
NPT inlet and 3/8” NPT outlet.

A float type vent designed to
vent troublesome air from
hydronic heating systems. The
brass body and the non-ferous
internals provide years of reliable
service. The compact design
(3-1/8” x 1-7/8”) and high operating
pressure/temperature (240ºF @ 150 PSIG)
limitations make the No. 97 a must in any
hydronic heating system.

No. 98
A high capacity automatic air
vent that is designed to remove
air in closed loop systems.
Materials of construction: Brass
body with non-ferrous internals.
Maximum Working
Pressure: 150 PSI. Maximum
Operating Temperature: 250ºF

Specifications
Model
Number

Part
Number

98
97

113246
113222

87

113021

67
113020
7
113001
107A
113076
4V
113055
26
113075
RV-125A 113100
1/4" P/T V58050PK
1/8" P/T
G97030
RP-250B 113102
DT-2
113041
TB-3/4
127001
TB-1
127002

Description

Automatic Air Vent

High Capacity Air Vent
Manual Air Vent
Vacuum Breaker
Readout Valve
Readout Valve
Readout Valve
Readout Probe
Drain-O-Tank
Balance Valve
Balance Valve

No. 87, 67 and 7
Automatic Air Vents
Designed to vent the
accumulation of troublesome
air wherever it can be trapped.
These non-ferrous automatic
air vents are 4-3/4” x 2-1/4”,
3-3/16” x 1-1/2” and 4-1/16”
x 2-3/16” (height and width),
respectively, and are rated for
a maximum operating temperature of
240ºF at pressures of 150, 35 and 75 PSI,
respectively. The No. 87 has a combination of
1/2” FPT/3/4” MPT connection, whereas No’s. 67
and 7 have 1/8” MPT, and FPT connections.
System
Connection

Dimensions
(W x H)

3/4" NPTM
1/8" NPTM
Combination
3/4" NPTM 1/2" NPTF
1/8" NPTM
1/8" NPTF
3/4" NPTF
1/8" NPTM
3/4" NPTM
1/8" NPTM
1/4" NPTM
1/8" NPTM
N/A
1/2" NPTM
3/4" NPTF
1" NPTF

4-1/2" x 9-5/8"
1-7/8" x 3-1/8"
2-1/4" x 4-3/4"
1-1/2" x 3-3/16"
2-3/16" x 4-1/16"

4-1/2" x 9-5/8"
5/8" x 5/8"
1-1/4" x 3"
1-1/8" x 9/16"
1-1/4" x 1-1/4"
1-1/8" x 1-1/4"
2" x 5/8"
2-1/4" x 6-5/16"

2" x 9-1/4"
2" x 9-1/4"

Designed to protect closed
vessels and piping systems
against collapse when the
induced vacuum exceeds design
conditions. When used on
steam heating systems, the No.
26 Vacuum Breaker controls
induced vacuum, permitting normal
return of condensate to the boiler.
Adjustable range 1/4” to 20” (mercury)
vacuum. Factory set to 4” — 240 PSIG
Maximum Working Pressure —
300ºF Maximum Operating
Temperature
No. 4V “Coin-Operated” 
Air Vent
Specially designed for the new
types of radiators. An important
feature is that it projects only
slightly, being almost flush with
the radiator. 150 PSIG Working
Pressure — 250ºF Maximum
Operating Temperature

Maximum
Pressure
Temperature
250ºF
150 PSIG
240ºF
35 PSIG
75 PSIG
150 PSIG
150 PSIG
240 PSIG
300 PSIG
300 PSIG
300 PSIG
300 PSIG
125 PSIG
125 PSIG
125 PSIG

250ºF
250ºF
300ºF
250ºF
250ºF
240ºF
250ºF
240ºF
250ºF
250ºF

Approx. Shpg.
Wt. (Lbs)
Carton Of

1
1

.8
.8
.61

1
1
48
6
50 pairs
1
1
6 pairs
1
6
6

.25
.5
10
2
3
4
.1
.5
1
.67
26
26
35

ACCESSORIES PSH - Primary/Secondary Header
Description

Operating Data

The B&G low-loss header, Model PSH, is a
combination air separator and manifold that
creates independent primary and secondary
circuits. The B&G Model PSH is equipped
with a purge valve allowing the user to
remove any debris deposited on the bottom
of the vessel and an air vent releasing
trapped air in the system. The insulation,
which is provided as standard, prevents
water vapors entering from the outside and
eliminates the formation of condensate on
the PSH body.

With Insulation:
Working Pressure: 150 PSI
Operating Temperature Threaded: 32°- 210°F
Operating Temperature Flanged: 32°- 220°F
Without Insulation:
Working Pressure: 150 PSI
Operating Temperature Threaded & Flanged: 32°-230°F
Materials of Construction
Body: Steel
Air Vent: Brass
Drain Valve: Brass
Insulation-Threaded: PEX
Insulation-Flanged: Polyurethane Foam
Connection
1”, 1-1/4” and 1-1/2” Female NPT
2”, 2-1/2”, 3” and 4” ANSI 150 CLASS Flange

Specifications

36

Model
Number

Part
Number

Connection Size
Inches (mm)

Max Flow
GPM (m3/h)

A
Inches (mm)

B
Inches (mm)

C - Drain
Connection Size
Inches (mm) NPT

Weight
LBS (Kg)

PSH-1

112465

1 (25.4)

11 (2.5)

24-3/8 (619)

8-7/8 (225)

1/2 (12.7)

6.0 (2.7)

PSH-1.25

112466

1-1/4 (31.75)

18 (4)

26-3/4 (679)

9-3/4 (248)

1/2 (12.7)

8.3 (3.8)

PSH-1.5

112467

1-1/2 (38.1)

26 (6)

28-1/3 (719)

11-1/8 (282)

1/2 (12.7)

12.6 (5 .7)

PSH-2

112468

2 (50.8)

40 (9)

42 (1069)

13-13/16 (350)

1-1/4(31.7)

78.7 (35.7)

PSH-2.5

112469

2-1/2 (63.5)

80 (18)

42 (1069)

13-13/16 (350)

1-1/4(31.7)

87.7 (39.8)

PSH-3

112470

3 (76.2)

124 (28)

50-3/8 (1279)

18-3/8 (466)

1-1/4(31.7)

108.0 (49)

PSH-4

112471

4 (101.6)

247 (56)

50-3/8 (1279)

18-1/2 (470)

1-1/4(31.7)

116.8 (53)

TANKS HFT Diaphragm Tanks • Expansion Tanks for Hydronic Heating
Description

Specifications

Bell & Gossett HFT expansion tanks
are designed to absorb the force
of thermal expansion in hydronic
heating systems. Series HFT tanks
for hydronic heating systems are
available in sizes from 2—86 gallons.
The Series HFT tank is designed
to absorb the force of thermal
expansion of heating water to
maintain proper pressurization in a
closed hydronic system. The heavy
duty butyl diaphragm separates
system water from the air in the tank
preventing water logging problems.

HFT-15 thru HFT-90

HFT-30V thru HFT-160V

Model
Number

Part
Number

HFT-15
HFT-30
HFT-60
HFT-90
HFT-30V
HFT-40V
HFT-60V
HFT-90V
HFT-110V
HFT-160V

1BN326
1BN327
1BN328
1BN329
1BN330
1BN331
1BN332
1BN333
1BN334
1BN335

Volume Gallons (Liters)
Tank
2 (7.5)
4.4 (16.6)
7.6 (28.7)
14 (53)
14 (53)
20 (75.7)
32 (121.1)
44 (166.5)
62 (234.6)
86 (325.5)

Acceptance
1.0 (3.7)
2.5 (9.4)
2.5 (9.4)
11.3 (42.8)
11.3 (42.8)
11.3 (42.8)
11.3 (42.8)
34 (128.7)
34 (128.7)
46 (174.1)

Height (A)
Inches (mm)

Diameter (B)
Inches (mm)

12-5/8 (321)
14 (355)
17-1/4 (438)
21 (533)
24-3/4 (629)
32-1/2 (826)
47-1/2 (1207)
36-1/2 (927)
48-1/2 (1232)
46 (1168)

8 (203)
11 (279)
11 (279)
15-3/8 (390)
15-3/8 (390)
15-5/8 (390)
15-5/8 (390)
22 (559)
22 (559)
22 (559)

Approx.
Shpg. Wt.
lbs. (Kg)

System
Connection

5 (2.3)
9 (4.1)
14 (6.4)
23 (10.4)
24 (11)
34 (15.5)
52 (23.6)
64 (29)
89 (40.5)
116 (53)

1/2" NPTM

1" NPTF

1-1/4" NPTF

Materials: Steel Shell Diaphragm
System Connection: Steel
Maximum Operating Temperature=240F (116C); Maximum Working Pressure= 100 PSI (689 kPa);
Sizing
Guideline
Standard Factory Precharge=12
PSI (83
kPa)

Operating Data

Boiler Size

Maximum Working Pressure: 100 PSI (689 kPa)
Maximum Operating Temperature: 240°F (115°C)
Standard Factory Pre-charge: 12 PSI (83 kPa)

Type of Radiation
Finned Tube

Model
Number

Materials of Construction

PT-5
PT-12
PT-25V
PT-30V
PT-42V
PT-60V
PT-80V
PT-180V
PT-210V

Shell: Carbon Steel
Diaphragm: Heavy Duty Butyl Rubber
Connection: Steel

Baseboard
Volume Gallons
(Liters) or

Part Net Output
Number
Tank
1BN317 BTU/HR
2 (8)
1BN318 25,000
4.4 (17)
50,000
1BN319
10.3 (39)
75,000
1BN320
14 (53)
100,000
1BN321
20 (76)
125,000
1BN322
34 (129)
150,000
1BN323 200,000
44 (167)
1BN324 250,000
62 (235)
1BN325 300,000
86 (326)

Radiant Panel
Acceptance
1.0 (4)
HFT-15
3.2
(12)
HFT-15
10.3 (39)
HFT-30
11.3 (43)
HFT-30
11.3 (43)
HFT-30
34 (129)
HFT-30
34
(129)
HFT-60
34
(129)
HFT-60
46.4
(176)
HFT-90

Convectors
or
Radiators
System
Height
Diameter (B)
Unit (A)
Heaters
Cast Iron

Inches (mm)

Inches (mm)

Connection

Model
12-5/8 (321) Use Tank
8 (203)
3/4" NPTM
HFT-15 11 (279) HFT-15
15 (381)
HFT-15 15-3/8 (391) HFT-30
19-1/4 (489)
HFT-30
HFT-30
1" NPTF
23-7/8 (605)
15-3/8 (391)
HFT-60
HFT-60
31-5/8 (802)
15-3/8 (391)
HFT-60
HFT-60
29-5/8 (752)
HFT-60 22 (559) HFT-90
36 (914)
HFT-60 22 (559) HFT-30V
1-1/4" NPTF
46-3/4 (1187)
HFT-90 22 (559) HFT-30V
47-1/4HFT-30V
(1200)
26 (660) HFT-30V

Approx.
Baseboard
Shpg.
Wt.
Cast
Iron
lbs. (Kg)
5 (2.3)

HFT-15
9 (4.1)
HFT-30
23 (10.4)
HFT-60
25 (11.3)
HFT-60
33 (15)
HFT-90
69 (31.2)
HFT-90
69 (31.2)
HFT-30V
92 (41.7)
HFT-40V
123 (55.8)
HFT-40V
HFT-60V
HFT-60V

HFT-40V
350,000
HFT-30V
HFT-30V
Materials: Steel Shell, Polypropylene
Liner, Buty Diaphragm
System Connection: Brass 400,000
HFT-40V
HFT-30V
HFT-40V
Maximum Operating Temperature=200F (93C); Maximum Working Pressure= 150 PSI (1,034 kPa);
Assumptions:
fill
pressure
12
PSI,
relief
pressure
30
PSI,
avg.
system
temp. 200˚F,
Standard Factory Precharge=40 PSI (276 kPa)
system fluid
is water,
consult factory with requirements not shown
Larger sizes and ASME constructed
models
are available.
Code approvals: PT-5, PT-12

Compression Tanks

City of
Los
Angeles

PT-25V thru PT-210

Airtrol® Tank Fittings

Air-tight, ASME constructed. Available in painted steel.
Sizes 15 to 505 gallons. Gauge glass tappings are standard.
Always use with B&G Airtrol Tank Fittings.

Directs free air to the compression tank. Restricts thermal
circulation to boiler. Establishes initial tank air level.
Allows compression tank size reduction.

ATFL

ATF

Specifications
Model
Part
Number Number
15
24
30
40
60
80
100
120
135
175
220
240
305
400
505

116029
116030
116031
116032
116033
116034
116035
116036
116037
116038
116039
116040
116041
116042
116840

Capcity
Gallons
15
24
30
40
60
80
100
120
135
175
220
240
305
400
505

Required Tank
Airtrol
Dia.
Fitting Inches
ATF-12

ATF-16
ATF-20
ATF-20
ATF-24

12
14
16
20
24

30
ATFL
36

Dimensions are approximate and subject to change. Consult factory for certified dimensions.
Part numbers in table above are for paint steel tanks.

Tank
Length
Inches

Approx.
Shpg.
Wt. (Lbs)

33
51
48
63
72
62
78
65
72
62-1/4
77
84
105-3/4
93
116

50
72
80
104
134
160
186
217
230
320
370
420
482
656
745

Specifications

*
* DT-2 Drain-O-Tank Air Charger comes with ATFL model
37

HFT-15
1BN326
HFT-30
1BN327
HFT-60
1BN328
HFT-90
1BN329
HFT-30V
1BN330
HFT-40V
1BN331
HFT-60V
1BN332
Description
HFT-90V
1BN333
HFT-110V 1BN334
Bell & Gossett PT expansion tanks are designed to absorb the force of thermal
HFT-160V 1BN335

2 (7.5)
4.4 (16.6)
7.6 (28.7)
14 (53)
14 (53)
20 (75.7)
32 (121.1)
44 (166.5)
62 (234.6)
86 (325.5)

TANKS PT Diaphragm Tanks
Expansion Tanks for Potable Water Systems
expansion in domestic potable water systems. Tanks for potable water systems,
Materials: Steel Shell Diaphragm
Series PT and PTA (ASME construction) are available in sizes
from 2—528 gallons.
System Connection: Steel

1.0 (3.7)
2.5 (9.4)
2.5 (9.4)
11.3 (42.8)
11.3 (42.8)
11.3 (42.8)
11.3 (42.8)
34 (128.7)
34 (128.7)
46 (174.1)

12-5/8 (321)
15-1/2 (394)
23 (584)
21 (533)
24-3/4 (629)
32-1/2 (826)
47-1/2 (1207)
36 (914)
46-3/4 (1186)
47-1/4 (1199)

8 (203)
11 (279)
11 (279)
15-3/8 (390)
15-3/8 (390)
15-5/8 (390)
15-5/8 (390)
22 (559)
22 (559)
22 (559)

1/2" NPTM

1" NPTF

1-1/4" NPTF

5 (2.3)
9 (4.1)
14 (6.4)
23 (10.4)
25 (11.3)
33 (14.9)
43 (19.5)
69 (31.2)
92 (41.7)
123 (55.8)

Maximum Operating Temperature=240F (116C); Maximum Working Pressure= 100 PSI (689 kPa);
Standard Factory Precharge=12 PSI (83 kPa)

Residential/Light Commercial
Non-ASME Diaphragm Tanks

Specifications

Operating Data
Maximum Working Pressure:
PT-5 & PT-12: 150 PSI (1035 kPa)
PT-25V thru PT-210V: 100 PSI (689 kPa)
Maximum Operating Temperature: 200°F (93°C)
Materials of Construction
Shell: Carbon Steel
Liner: Polypropylene
Diaphragm: Heavy Duty Butyl Rubber
System Connection: PT-25V thru PT-210V are
stainless steel. All others are brass
Factory Pre-charge: 40 PSI (276 kPa)

Model
Number

Part
Number

PT-5
PT-12
PT-25V
PT-30V
PT-42V
PT-60V
PT-80V
PT-180V
PT-210V

1BN317LF
1BN318LF
1BN319LF
1BN320LF
1BN321LF
1BN322LF
1BN323LF
1BN324LF
1BN325LF

Volume Gallons (Liters)
Tank
2 (8)
4.4 (17)
10.3 (39)
14 (53)
20 (76)
34 (129)
44 (167)
62 (235)
86 (326)

Acceptance
1.0 (4)
3.2 (12)
10.3 (39)
11.3 (43)
11.3 (43)
34 (129)
34 (129)
34 (129)
46.4 (176)

Height (A)
Inches (mm)

Diameter (B)
Inches (mm)

System
Connection

12-5/8 (321)
15 (381)
19-1/4 (489)
23-7/8 (605)
31-5/8 (802)
29-5/8 (752)
36 (914)
46-3/4 (1187)
47-1/4 (1200)

8 (203)
11 (279)
15-3/8 (391)
15-3/8 (391)
15-3/8 (391)
22 (559)
22 (559)
22 (559)
26 (660)

3/4" NPTM
3/4" NPTF
1" NPTF

1-1/4" NPTF

Approx.
Shpg. Wt.
lbs. (Kg)
5 (2.3)
9 (4.1)
23 (10.4)
25 (11.3)
33 (15)
69 (31.2)
69 (31.2)
92 (41.7)
123 (55.8)

Larger sizes and ASME constructed models are available.
Code approvals: PT-5, PT-12

PT-25V thru PT-210

City of
Los
Angeles

Commercial Non-ASME Bladder Tanks
Maximum Working Pressure : 150 PSI (1035 kPa)
Maximum Operating Temperature: 240°F (116°C)
Materials of Construction
Shell: Carbon Steel
Liner: Polypropylene
Diaphragm: Heavy Duty Butyl Rubber
System Connection: Bronze
Factory Pre-charge: 55 PSI (379 kPa)

PT-5 thru PT-12

PT-25V thru PT-210V

WTX Diaphragm Tanks
Description
The Series WTX tanks will help protect the pump and pressure switches against short cycling. The potable well
tank delivers adequate water under pressure between pump cycles to meet the required demand. It will provide
economical system operation by minimizing pump starts, extending pump motor life, and saving energy. The
WTX tank will also assist the pump in meeting peak demands.
Specifications
Model
Number

Part
Number

WTX-2
WTX-5
WTX-8
WTX-10
WTX-14
WTX-10S
WTX-14S
WTX-20S
WTX-26S
WTX-32S
WTX-34S
WTX-44S
WTX-62S
WTX-81S
WTX-86S
WTX-119S

1BN300
1BN301
1BN302
1BN303
1BN304
1BN305
1BN306
1BN307
1BN308
1BN309
1BN310
1BN311
1BN312
1BN313
1BN315
1BN316

Volume Gallons (Liters)
Tank
2 (8)
4.4 (17)
7.6 (33)
10.3 (39)
14 (53)
10.3 (39)
14 (53)
20 (76)
26 (98)
32 (121)
34 (129)
44 (167)
62 (235)
81 (307)
86 (326)
119 (450)

Acceptance Factor
0.45
0.55
0.42
1.00
0.81
1.00
0.81
0.57
0.44
0.35
1.00
0.77
0.55
0.41
0.54
0.39

System Drawdown in Gallons
PSIG
20/40
30/50
40/60
0.7
0.8
0.6
1.5
1.8
1.3
2.6
3.1
2.2
3.5
4.1
3.0
4.8
5.6
4.1
3.5
4.1
3.0
4.8
5.6
4.1
6.8
8.0
5.9
8.8
10.5
7.6
10.9
–
9.4
11.6
13.7
10.0
15
17.7
12.9
21.1
24.9
18.2
27.5
32.6
23.8
29.2
34.6
25.3
40.5
47.8
35.0

Height (A)
Inches (mm)

Diameter (B)
Inches (mm)

12-5/8 (321)
15 (381)
22-1/4 (629)
17-3/4 (451)
22 (559)
19-1/4 (489)
23-7/8 (605)
31-5/8 (802)
38-1/4 (972)
46-1/2 (1181)
29-5/8 (752)
36 (914)
46-3/4 (1187)
56-3/8 (1432)
47-1/4 (1200)
61-7/8 (1572)

8 (203)
11 (279)
11 (279)
15-3/8 (390)
15-3/8 (390)
15-3/8 (390)
15-5/8 (390)
15-3/8 (390)
15-3/8 (390)
15-5/8 (390)
22 (559)
22 (559)
22 (559)
22 (559)
26 (660)
26 (660)

System
Connection
3/4" NPTM

1" NPTM

1" NPTF

1-1/4" NPTM

Approx.
Shpg. Wt.
lbs. (Kg)
5 (2.3)
9 (4)
15 (7)
20 (9)
22(10)
23 (10)
25 (11)
33 (15)
36 (16)
43 (20)
61 (28)
69 (31)
92 (41)
103 (47)
123 (56)
166 (75)

Operating Data
Maximum Operating Temperature:
200ºF (93ºC)
Maximum Working Pressure:
100 PSI (689 kPa)
Materials of Construction
Shell: Carbon Steel
Liner: Polypropylene
Diaphragm: Heavy Duty Butyl Rubber
System Connection: WTX-2 thru
WTX-14 = Copper Lined Steel Fitting;
all others are Steel with Stainless Steel
Elbow
Factory Pre-charge:
WTX-2, WTX.5 = 18 PSI (124 kPa);
WXT-8 = 28 PSI (193 kPa);
All other WTX tanks = 38 PSI (262 kPa)

System Connection: WTX-2 thru WTX-14 = Copper Lined Steel Fitting; All others = Steel with Stainless Steel Elbow
Factory Pre-Charge: WTX-2. WTX-5 = 18PSI (124kPa); WTX-8 = 28 PSI (193 kPa); All other WTX tanks = 38 PSI (262 kPa)

WTX-2 thru WTX-14
WTX-10S thru WTX-119S
38

VALVES TPV – Tank Purge Valves

Horizontal Tank
Installation with
Rolairtrol Air
Separator

Description
Combination full port shut-off valve and drain valve used
to connect an expansion tank to the system. It is important
that the pre-charge in an expansion tank be maintained at
the proper pressure at all times. This pressure is the lowest
system operating pressure. When the tank’s pressure is
adjusted, there should be no system liquid in it. This
pre-charge should be checked and adjusted when:
• Tank is first installed
• If system is started or operating with the incorrect
	 tank pre-charge
• Annually to assure proper pre-charge pressure at all times

TPV
Rolairtrol

Diaphragm Tank

Vertical Tank Installation
with Rolairtrol Air
Separator

TPV

The TPV (Tank Purge Valve) is ideal for this as the tank can
be isolated from the system, drained and the pre-charge
checked and adjusted without draining or shutting down
the system.
The TPV also serves as a service valve should the tank need to
be removed or have the bladder changed. These valves are
furnished standard with a drain valve with a standard 5/8”
hose connection.

Expansion
Tank

Operating Data
Maximum Working Pressure:
400 PSIG (2,758 kPa)
Maximum Operating Temperature:
-4°F (-20°C) to 250°F (121°C)

Specifications

Materials of Construction
Valve Body: Brass
Ball: Chrome Plated
Ball Seal: PTFE
Stem: Explosion Proof
O-Ring: EPDM

J

(2) 1/4” NPT
PIPE PLUGS
TANK
CONNECTION

H

WARNING LABEL
(V56873)
SYSTEM
CONNECTION

Model
Number

Part
Number

System
Connection

Tank
Connection

J

Approx.
Weight Lbs.

TPV-1/2SF

113226

1/2” Female
SWT

1/2” Female
NPT

1.67 2.25 3.15 3.82
(42.4) (57.2) (80.0) (97.0)

0.84 1.60 2.36 1.75
(21.3) (40.6) (59.9) (44.5)

3.34
(84.8)

1.0
(0.5)

TPV-1/2FF

113227

1/2” Female
NPT

1/2” Female
NPT

1.19 2.00 2.90 3.55
(30.2) (50.8) (73.7) (90.4)

0.84 1.60 2.36 1.75
(21.3) (40.6) (59.9) (44.5)

3.34
(84.8)

1.0
(0.5)

TPV-1/2SM

113228

1/2” Female
SWT

1/2” Male
NPT

1.29 2.25 3.15 4.73
0.84 1.60 2.36 1.75
(32.2) (57.2) (80.0) (120.1) (21.3) (40.6) (59.9) (44.5)

3.34
(84.8)

1.0
(0.5)

TPV-1/2FM

113229

1/2” Female
NPT

1/2” Male
NPT

1.06 2.00 2.90 4.47
0.84 1.60 2.36 1.75
(26.9) (50.6) (73.7) (113.6) (21.3) (40.6) (59.9) (44.5)

3.34
(84.8)

1.0
(0.5)

TPV-3/4SF

113230

3/4” Female
SWT

3/4” Female
NPT

1.67 2.85 3.72 4.53
1.06 1.95 2.66 1.89
(42.2) (72.4) (94.5) (115.1) (26.9) (49.5) (67.6) (48.0)

3.50
(88.9)

1.24
(0.6)

TPV-3/4FF

113231

3/4” Female
NPT

3/4” Female
NPT

1.19 2.50 3.26 4.06
1.06 1.95 2.66 1.69
(30.2) (63.5) (82.8) (103.1) (26.9) (49.5) (67.6) (48.0)

3.50
(68.9)

1.24
(0.6)

TPV-3/4SM

113232

3/4” Female
SWT

3/4” Male
NPT

1.67 2.85 3.72 5.50
(42.4) (72.4) (94.5) (14.0)

1.06 1.95 2.66 1.69
(26.9) (49.5) (67.6) (48.0)

3.50
(68.9)

1.25
(0.6)

TPV-3/4FM

113233

3/4” Female
NPT

3/4” Male
NPT

1.19 2.50 3.26 5.03
1.06 1.95 2.66 1.69
(30.2) (63.5) (82.8) (127.6) (26.9) (49.5) (67.6) (48.0)

3.50
(68.9)

1.25
(0.6)

TPV-1SF

113234

1” Female
SWT

1” Female
NPT

1.95 3.18 4.14 5.05
1.23 2.06 2.71 2.00
4.00
(49.5) (80.6) (105.2) (126.3) (31.2) (52.3) (68.6) (50.8) (101.6)

1.71
(0.8)

TPV-1FF

113235

1” Female
NPT

1” Female
NPT

1.46 2.63 3.60 4.50
1.23 2.06 2.71 2.00
4.00
(36.8) (66.5) (91.4) (114.3) (31.2) (52.3) (68.6) (50.8) (101.6)

1.71
(0.8)

TPV-1SM

113236

1” Female
SWT

1” Male
NPT

1.95 3.18 4.14 6.16
1.23 2.06 2.71 2.00
4.00
(49.5) (80.6) (105.2) (156.5) (31.2) (52.3) (68.6) (50.8) (101.6)

1.75
(0.8)

TPV-1FM

113237

1” Female
NPT

1” Male
NPT

1.45 2.53 3.60 5.60
1.23 2.06 2.71 2.00
4.00
(36.8) (60.8) (91.4) (142.2) (31.2) (52.3) (68.6) (50.8) (101.6)

1.75
(0.8)

TPV-11/4SF

113238

11/4” Female 11/4” Female
SWT
NPT

2.13 3.94 5.14 6.10
1.34 2.71 2.96 2.45
4.50
(54.1) (100.1) (130.6) (154.9) (34.0) (68.8) (75.2) (62.2) (114.3)

3.15
(1.5)

TPV-11/4FF

113239

11/4” Female 11/4” Female
NPT
NPT

1.55 3.37 4.56 5.50
1.34 2.71 2.96 2.45
4.50
(39.4) (85.6) (115.6) (139.7) (34.0) (68.8) (75.2) (62.2) (114.3)

3.15
(1.5)

TPV-11/4SM 113240

11/4” Female
SWT

11/4” Male
NPT

2.13 3.94 5.14 7.11
1.34 2.71 2.96 2.45
4.50
(54.1) (100.1) (130.6) (180.6) (34.0) (68.8) (75.2) (62.2) (114.3)

3.19
(1.5)

TPV-11/4FM 113241

11/4” Female
NPT

11/4” Male
NPT

1.55 3.37 4.55 6.52
1.34 2.71 2.96 2.45
4.50
(39.4) (85.6) (115.6) (165.6) (34.0) (68.8) (75.2) (62.2) (114.3)

3.19
(1.5)

TPV-11/2SM 113242

11/2” Female
SWT

11/2” Male
NPT

2.54 4.66 5.90 8.32
1.85 3.25 3.38 3.00
5.30
(84.5) (118.4) (149.9) (211.3) (47.0) (82.6) (85.9) (76.2) (134.5)

5.50
(2.5)

TPV-11/2FM 113243

11/2” Female
NPT

11/2” Male
NPT

1.91 3.97 5.12 7.64
1.85 3.25 3.38 3.00
5.30
(48.5) (100.8) (130.1) (194.1) (47.0) (82.6) (85.9) (76.2) (134.5)

5.50
(2.5)

G

F

E

D
1/4” NPT
DRAIN VALVE

C B

A

These valves are not recommended to be used on
potable water tanks.

A

B

Dimensions* Inch (mm)
C
D
E
F

G

H

TPV-2SM

113244

2” Female
SWT

2” Male
NPT

2.89 4.57 6.80 9.80
2.00 4.00 3.52 3.33
6.12
(72.4) (116.1) (172.7) (248.9) (50.8) (101.6) (89.4) (84.6) (155.5)

8.00
(3.63)

TPV-2FM

113245

2” Female
NPT

2” Male
NPT

2.06 4.65 5.85 8.87
2.00 4.00 3.52 3.33
6.12
(62.3) (118.1) (148.6) (225.3) (50.8) (101.6) (89.4) (84.6) (155.5)

8.00
(3.63)

*All dimensions +/– 0.125 (3.2 mm) tolerance. Dimensions are subject to change. Not to be used for construction purposes unless certified.

39

HEAT EXCHANGERS Brazed Plate Heat Exchangers
Description
Model BPX brazed plate heat exchangers offer the highest level
of thermal efficiency and durability in a compact, low cost unit.
The corrugated plate design provides very high heat transfer
coefficients, resulting in a more compact design. The unit’s
stainless steel plates are vacuum brazed together to form a
durable, integral piece that can withstand high pressure
and temperature.
The BPX heat exchangers offer a compact design compared to
shell and tube exchangers
• 1/6 the size of shell and tube
• 1/5 the weight of shell and tube
• 1/8 the liquid required of shell and tube
• 1/3 to 1/5 of the surface area required

BPX units are ideal for a wide variety
of hydronic applications such as:
• Radiant Floor Heating
• Domestic Water Heating
• Snow MELT Systems
• Swimming Pool Heating
Operating Data
Design Pressure: 435 PSI (30 bar)
Design Temperature: 450°F (232°C)
Plates: Stainless Steel
Braze Material: Copper
Connections: From 1/2 inch to 4 inch
Capacity: Up to 800 GPM
Construction Codes : UL, CRN, ASME Code
Stamp Option

Also available in double-wall design.

Designed for dependability – Small size. Big impact.

Mechanical Design:
Design pressures up to 435 PSIG.
Maximum design temperature
up to 450˚F. Minimum design
temperature to -310˚F.

Construction Codes:
Available codes include UL, CRN,
and ASME code stamp.

Connections:
From 1/2-inch to 4-inch. Standard
connection options include NPT,
SAE flanged and sweat. Custom
connections available.

Capacity:
Up to 800 GPM and
350 sq.ft. of surface area.

Materials:
Stainless steel 316L plates.
Copper brazed material.

Mounting:
Reduce mounting costs with
optional threaded studs or
integral mounting bracket.

40

BP412-30 (1" MPT)
BP412-30 (1" MPT)
BP412-50 (1" MPT)
BP424-20 (2" MPT)
BP424-30 (2" MPT)
BP424-40 (2" MPT)
BP424-50 (2" MPT)

250,000
300,000
450,000
600,000
900,000
1,200,000
1,350,000

25.8
30.9
46.4
61.8
92.7
123.6
139.1

4.1
5.8
6.2
4.8
4.8
5.1
4.7

17.9
21.4
32.1
42.9
64.3
85.7
96.4

2.1
2.9
3.3
2.8
3.0
3.2
2.9

PL-36
PL-55
613
609
614
625
625

1½"
2"
2"
2"
2½"
3"
3"

be a BP400-40.

BPDW415-110 (1" MPT)
1,100,000 45.4
( 2 ) BPDW415-80 (1" MPT) 1,500,000††† 61.9
( 2 ) BPDW415-100 (1" MPT) 2,000,000††† 82.5

HEAT EXCHANGERS Brazed Plate Heat Exchangers

6.3
4.5
5.9

24.4
33.3
44.4

3.1
1.3
1.7

NBF-36
2”
NBF-45
2”
NBF-45B 2-1/2”

† Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
†† Pipe size shown isn't the connection size of the heat exchanger.
††† Two units are required in parallel.

Larger models are available upon request.
† Assumptions: Longest radiant loop is 250 ft. PEX.
†† Pipe size shown isn't the connection size of the heat exchanger.

Quick Selection Tables

Swimming Pool Heating
Boiler Side:
Water 180º
F supply, 130º
F return Wall
Domestic
Water
Heating
- Double

Radiant Floor Heating
Domestic Water Heating
Boiler Side: Water 180º F supply, 160º F return

BoilerFloor
Side:Side:
Water
180º100º
F supply,
130º120º
F return
Radiant
Water
F supply,
F return
Domestic Water Side: Water 50º F supply, 140º F return

Model
Model

Heat
Heat
Exchanged
Exchanged
BTU/Hr
BTU/Hr

Boiler Side
Side Drop
FlowBoiler
Pressure
Flow
Pressure
GPM
PSIDrop
GPM
PSI
3.1
2.4

BP400-10 (¾" MPT)
30,000
BP400-10
60,000
2.5
BP400-10(¾"
(¾"MPT)
MPT)
50,000
5.2
BP400-20
6.2
BP400-20(¾"
(¾"MPT)
MPT) 150,000
100,000
10.3
BP400-30
9.3
BP400-30(¾"
(¾"MPT)
MPT) 225,000
150,000
15.5
BP400-40
BP400-40(¾"
(¾"MPT)
MPT) 350,000
200,000 14.4
20.6
BP410-30
BP411-20(1"
(1"MPT)
MPT) 450,000
250,000 18.6
25.8
BP410-40
(1"
MPT)
600,000
24.8
BP411-20 (1" MPT)
350,000
36.1
BP410-50
BP411-30(1"
(1"MPT)
MPT) 800,000
450,000 33.0
46.4
BP410-60
(1"
MPT)
900,000
37.1
BP424-20 (2" MPT)
600,000
61.8
BP410-80
(1"
MPT)
1,100,000
45.4
BP424-30 (2" MPT)
900,000
92.7
BP423-30
(2"
MPT)
1,500,000
61.9
BP424-40 (2" MPT) 1,200,000 123.6
BP423-40
(2"
MPT)
2,000,000
82.5
BP424-50 (2" MPT) 1,350,000 139.1
BP423-50
(2" MPT)
2,500,000
103.1
Larger models
are available
upon request.

1.6
6.1
2.1
5.2
2.2
5.3
3.4
5.8
6.2
3.3
6.2
6.3
6.9
6.1
6.9
4.8
6.8
4.8
4.6
5.1
4.6
4.7
4.8

Radiant Floor Side
B&G
Domestic
Water Side
Flow Pressure
Drop B&G
Pump
Flow
Pump †
GPM Pressure
PSIDrop Selection
Selection†
GPM
PSI
3.0
1.6
NRF-25
1.3
5.0
3.3
10.1
5.0
15.2
7.8
20.2
10.0
25.2
13.3
35.3
17.8
45.4
20.0
60.6
24.4
90.9
33.3
121.2
44.4
136.3
55.5

0.3
4.2
0.6
4.4
0.7
4.9
1.0
5.5
1.8
3.0
2.0
5.6
2.4
5.8
2.2
4.2
2.2
4.5
1.4
5.0
1.4
4.6
1.5

NBF-9U
NRF-36
NBF-9U
NRF-36
NBF-9U
NRF-36
NBF-12
NRF-36
NBF-25
PL-36
NBF-25
PL-55
NBF-25
607
NBF-25
609
NBF-36
611
NBF-45
625
PL-45B
619
PL-75B

Pipe
Pipe
Size††††
Size
¾"
5
/1"
8"
¾"
1¼"
1"
1½"
1¼"
1½"
1¼"
2"
1½"
2"
1½"
2"
2"
2½"
2"3"
2"3"
2½"
3"
2½"

Larger
models are
available
uponloop
request.
Assumptions:
200 ft. TEL of copper pipe with (6) 90 degree
† Assumptions:
Longest
radiant
is 200† ft.
PEX.
elbows.
†† Pipe
sizeisn’t
shown
not the connection
the heat exchanger.
†† Pipe size
shown
the isconnection
size of thesize
heatofexchanger.

Model3
Model

Pool Side:
F supply,
107º
F return
Boiler
Side:Water
Water70º
180º
F supply,
130º
F return
Domestic
Water
Side:
Water
50º
F
supply,
140º F return
Boiler
Side
Pool Side
Pool
Heat

2
Size Heat ExchangedBoilerFlow
Drop
Domestic
WaterFlow
Side Pressure Drop
Side Pressure
B&G Pump Pipe
1
Gallons
BTU/Hr
GPMDrop Flow
PSI PressureGPM
PSI† ††
Exchanged Flow Pressure
Drop

BP400-10 (¾" MPT)
2,000BTU/Hr 33,300
GPM
BP400-10
(¾" MPT)
2.5
BPDW410-20
(1" MPT) 6,000 60,000 99,900
BP400-20
(¾" MPT)
6.2
BPDW410-34
(1" MPT) 8,000150,000 133,200
BP400-30
(¾"
MPT)
15,000
250,234
BPDW415-24 (1" MPT)
225,000
9.3
BP412-20
(1" MPT)
14.4
BPDW415-34
(1" MPT) 20,000350,000 333,645
BP412-20
(1"
MPT)
30,000
500,467
450,000
18.6
BPDW415-40 (1" MPT)
BP412-30
(1" MPT)
BPDW415-60
(1" MPT) 40,000600,000 667,290
24.8
BP424-20
(2"
MPT)
60,000
1,000,936
800,000
33.0
BPDW415-80 (1" MPT)
BP424-30
(2"
MPT)
80,000
1,334,581
900,000
37.1
BPDW415-100 (1" MPT)
BP424-30
(2"
MPT)
100,000
1,668,226
BPDW415-110 (1" MPT)
1,100,000 45.4
BP424-40
(2"
MPT)
120,000
2,001,871
( 2 ) BPDW415-80 (1" MPT) 1,500,000††† 61.9
(2" MPT)(1" MPT)
150,000
2,502,000
2,000,000†††
82.5
( 2BP424-50
) BPDW415-100

1.37
PSI
4.10
0.2
5.50
0.4
10.00
3.8
13.00
4.5
20.70
5.4
27.00
4.6
40.00
5.1
53.00
4.8
67.00
6.3
82.50
4.5
103.20
5.9

0.5
GPM

4.1
1.3
1.7
3.3
2.7
5.0
2.5
7.8
5.6
10.0
3.9
13.3
2.3
17.8
1.9
20.0
2.8
24.4
2.5
33.3
2.7
44.4

PSI1.8

0.15.4
0.17.3
0.914.0
1.118.0
1.427.2
1.236.0
1.454.0
1.872.0
3.190.0
108.0
1.3
135.6
1.7

Selection
0.6 Size
5.0
NBF-9U
2.5
NBF-9U
4.5
NBF-9U
3.4
NBF-12
7.7
NBF-25
6.9
NBF-25
3.6
NBF-25
3.1
NBF-25
4.7
NBF-36
4.2
NBF-45
4.7
NBF-45B

Larger models are available upon request.
† Assumptions: 20 ft. of copper pipe with (6) 90 degree elbows.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
†† Pipe size shown isn't the connection size of the heat exchanger.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
††† Two units are required in parallel.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is

5/8”
3/4”
1”
1-1/4”
1-1/4”
1-1/2”
1-1/2”
2”
2”
2”
2-1/2”

required or alternate materials of construction should be considered.

Outdoor Wood Boiler

Melt
Applications
Domestic
Water
Heating
- Double Wall
omestic Water Heating
-Snow
Double
Wall

Swimming
Pool
Heating
Boiler
Side: Water 180º
F supply,
155º F return
Boiler
HouseSide:
Side:Water
Water180º
140ºFFsupply,
supply,130º
165ºF Freturn
return
Pool Side: Water 70º F supply, 107º F return

Boiler
Side:
Water180º
180ºF Fsupply,
supply,160º
130ºFFreturn
return
Boiler Side: Water 180º F supply,
130º
F return
Boiler
Side:
Water
Domestic
Water
50ºFFsupply,
supply, 130º
140º FF return
return
Domestic Water Side: Water 50º
F supply,
140ºSide:
F return
Snow
Side: Water
Water
40%
P.G. 100º

Heat
Exchanged
BTU/Hr

Domestic
Boiler Side Snow
Heat Water
Domestic
SideSide
Boiler Side Heat
Boiler
Melt Water
Side Side B&G
B&G PumpPipePipe
B&G Pump Pipe
Exchanged
Flow
Flow
Flow
Pressure Drop
Pressure
Flow
Model
Pressure
Drop Pressure
Model
Exchanged
Flow Pressure
Drop Drop
Pressure
DropDrop Pump † †† ††
†Flow ††
SelectionSizeSize
Selection Size
BTU/Hr
GPM
PSI BTU/Hr
GPM GPMPSIGPM PSI PSI GPM GPM PSI PSI Selection†

0.2 2.15/8”1.3
BPDW410-20
(1"0.2MPT) 30,0001.360,000
60,000 BP400-10
2.5 (¾" MPT)
MPT)
3.1 0.1 2.5 2.4 NBF-9U
150,000
0.4 3.23/4” 3.3
BPDW410-34
(1"0.4MPT) 45,0003.3
150,000 BP400-10
6.2 (¾" MPT)
MPT)
4.6 0.1 6.2 5.1 NBF-9U
BPDW415-24
(1"3.8MPT) 60,000
3.8 4.3 1” 5.0
MPT)
225,000 BP400-14
9.3 (¾" MPT)
5.0225,000
6.2 0.9 9.3 4.2 NBF-9U
350,000
4.5 7.1
BPDW415-34
(1"4.5MPT) 100,000
350,000 BP400-20
14.4 (¾" MPT)
7.8
1-1/4”7.8
MPT)
10.3 1.114.4 5.4 NBF-12
450,000
5.4 12.5
10.0
BPDW415-40
(1"5.4MPT) 175,000
450,000 BP400-40
18.6 (¾" MPT)
10.0
1-1/4”
MPT)
18.0 1.418.6 5.2 NBF-25
BPDW415-60
(1"
600,000
4.6 17.9
13.3
MPT)
600,000 BP412-30
24.8 (1" MPT)
4.6MPT) 250,000
13.3
1-1/2”
25.8 1.224.8 4.1 NBF-25
800,000
5.1 21.4
17.8
BPDW415-80
(1"5.1MPT) 300,000
800,000 BP412-30
33.0 (1" MPT)
17.8
1-1/2”
MPT)
30.9 1.433.0 5.8 NBF-25
900,000
4.8 32.12”20.0
BPDW415-100
(1"
900,000 BP412-50
37.1 (1" MPT)
4.8MPT)450,000
20.0
MPT)
46.4 1.837.1 6.2 NBF-25
BPDW415-110
(1"
1,100,000
6.3 42.92”24.4
MPT)
1,100,000 BP424-20
45.4 (2" MPT)
6.3MPT)600,000
24.4
61.8 3.145.4 4.8 NBF-36
†††
2 ) 61.9
BPDW415-80
(1" MPT)
1,500,000
4.5 64.32” 33.3
1" MPT) 1,500,000†††(BP424-30
4.5
33.3
(2" MPT)
900,000
92.7 1.361.9 4.8 NBF-45
†††
2,000,000
5.9 85.7
44.4
( 2BP424-40
) BPDW415-100
82.5 (2" MPT)
5.9(1" MPT)
44.4
2-1/2”
1" MPT) 2,000,000†††
1,200,000
123.6 1.782.5 5.1 NBF-45B
BP424-50
(2"
MPT)
1,350,000
139.1
4.7
96.4
†
Assumptions:
20
ft.
of
copper
pipe
with
(6)
90
degree
elbows.
t. of copper pipe with (6) 90 degree elbows.

0.9
2.1
1.9
2.7
2.8
2.1
2.9
3.3
2.8
3.0
3.2
2.9

0.1
0.1
0.9
1.1
1.4
1.2
1.4
1.8
3.1
1.3
1.7

NBF-9U ¾" 5/8”
NRF-25
NBF-9U ¾"3/4”
NRF-35
NBF-9U 1" 1”
NRF-25
NBF-12 1"1-1/4”
NRF-36
NBF-25 1½"
1-1/4”
NRF-36
NBF-25 1½"
1-1/2”
PL-36
NBF-25 2"1-1/2”
PL-55
613NBF-25 2" 2”
609NBF-36 2" 2”
NBF-45 2½" 2”
614
625NBF-45B 3"2-1/2”
625
3"

Larger
models
are
available
upon request.
Pipe
size
shown
isn't
the connection
size of the heat exchanger.
isn't the connection ††
size
of the
heat
exchanger.
Two units areLongest
required
in parallel.
† Assumptions:
radiant
loop is 250 ft. PEX.
equired in parallel. †††
†† Pipe size shown isn't the connection size of the heat exchanger.

Boiler Side
House Side
Heat
Boiler Side
Side Drop
Pool
ExchangedHeatFlow Pressure
Drop Flow Pool
Pressure
SizeBTU/HrExchanged
Flow PSI
Pressure DropGPM
Flow2 Pressure
GPM
PSI Drop
1
PSI
BP400-20LP (¾" MPT) Gallons30,500 BTU/Hr2.52 GPM 0.4 PSI
2.5GPM
0.3
Model
Model3

BP400-10
(¾" (¾"
MPT)MPT) 2,000 50,000 33,3004.12
BP400-30LP
BP400-10
(¾" (¾"
MPT)MPT) 6,000 70,000 99,9005.77
BP400-40LP
BP400-20
(¾" MPT)
BP410-20LP
(1" MPT) 8,000 80,000 133,2006.60
BP400-30
(¾" MPT)
BP410-30LP
(1" MPT) 15,000130,000 250,234
10.72
BP412-20
(1" MPT)
BP410-40LP
(1" MPT) 20,000179,500 333,645
14.80
BP412-20
(1" MPT)
BP410-50LP
(1" MPT) 30,000229,500 500,467
18.92
BP412-30
(1"
MPT)
40,000
667,290
BP410-60LP (1" MPT)
279,000
23.00
BP424-20
(2" MPT)
BP410-70LP
(1" MPT) 60,000329,000 1,000,936
27.13
BP424-30
(2" MPT)
BP410-80LP
(1" MPT) 80,000378,500 1,334,581
31.21
BP424-30
(2" MPT)
BP410-90LP
(1" MPT) 100,000428,500 1,668,226
35.33
BP424-40
(2" MPT)
BP410-100LP
(1" MPT) 120,000478,000 2,001,871
39.41
BP424-50
(2" MPT)
150,000
2,502,000
Larger
models
are available
upon request.

1.37
4.10
5.50
10.00
13.00
20.70
27.00
40.00
53.00
67.00
82.50
103.20

0.5
0.6
1.9
2.2
2.3
2.5
2.8
3.0
3.3
3.7
4.0

0.5
4.1
1.7
2.7
2.5
5.6
3.9
2.3
1.9
2.8
2.5
2.7

4.1 1.8
5.7 5.4
6.5 7.3
10.614.0
14.618.0
18.727.2
22.836.0
26.854.0
30.972.0
34.990.0
108.0
39.0
135.6

0.6
0.4
5.0
0.6
2.5
1.6
4.5
1.92
3.4
2.2
7.7
2.4
6.9
2.6
3.6
2.9
3.1
3.2
4.7
3.6
4.2
4.0
4.7

Larger models are available upon request.
1) Provides approx. 2º F per hour heating with 180º F boiler to achieve 80º F pool temperature.
2) Pool water flow rate usually requires flow by pass from main pool circulation.
3) Chlorinated pool water can be corrosive to SS316L and Copper. Proper control of chlorine levels is
required or alternate materials of construction should be considered.

Solar Heating

Domestic Water Heating
Swimming
Pool
Heating
Swimming Pool Heating
Boiler
Side: Water 180º
F supply,
130º F return

Boiler
Side:
Water
180º F50º
supply,
130º140º
F return
Domestic
Water
Side: Water
F supply,
F return
Boiler Side: Water 180º F supply,
130º
F return
Water 70º F supply, 107º F return
Pool Side: Water 70º F supply, Pool
107ºSide:
F return
Boiler Side
Domestic Water Side B&G
Heat

Pool
Size
Gallons1
2,000
6,000
8,000
15,000
20,000
30,000
40,000
60,000
80,000
100,000
120,000
150,000

Side Pipe
Pool
Boiler
Side FlowHeatPressure
Pool Side
Exchanged
DropBoiler
FlowSidePressure Drop Pool
Pump
Heat Model
††
3
2
† Size
2
Size Drop
Exchanged
Flow Drop
Pressure Drop
Pressure
Drop
Model Flow Pressure
BTU/Hr
Exchanged
Flow PSI
Pressure
GPM
GPM
PSI Flow Selection
1
BTU/Hr
PSI 2.5BTU/Hr
GPM 1.6 GPM
PSI 1.3 PSI 0.3 GPM NBF-9UPSI 5/8"
BP400-10 (¾"GPM
MPT) Gallons
60,000
BP400-10
MPT)
2,0000.5
BP400-20 (¾" 1.37
150,000
6.233,300
33,300
1.8 2.1 1.370.6 3.3 0.5 0.6 1.8 NBF-9U 0.6 ¾"
BP400-10
MPT)
6,0004.1
BP400-30 (¾" 4.10
225,000
9.399,900
99,900
5.4 2.2 4.105.0 5.0 4.1 0.7 5.4 NBF-9U 5.0 1"
BP400-20
MPT)
8,0001.7 14.4
133,200
BP400-40 (¾" 5.50
350,000
133,200
7.3 3.4 5.502.5 7.8 1.7 1.0 7.3 NBF-12 2.5 1¼"
BP400-30
15,000
250,234
BP410-30 (¾"
(1" 10.00
MPT)
450,000
250,234
2.7 18.6
14.0 6.2 10.00
4.5 10.0 2.7 1.8 14.0 NBF-25 4.5 1¼"
BP412-20
MPT)
20,000
333,645
BP410-40 (1" 13.00
600,000
333,645
2.5 24.8
18.0 6.2 13.00
3.4 13.3 2.5 2.0 18.0 NBF-25 3.4 1½"
BP412-20
MPT)
30,000
500,467
BP410-50 (1" 20.70
800,000
500,467
5.6 33.0
27.2 6.9 20.70
7.7 17.8 5.6 2.4 27.2 NBF-25 7.7 1½"
BP412-30
MPT)
40,000
667,290
BP410-60 (1" 27.00
900,000
667,290
3.9 37.1
36.0 6.9 27.00
6.9 20.0 3.9 2.2 36.0 NBF-25 6.9 2"
BP424-20
MPT) 1,100,000
60,000
1,000,936
BP410-80 (2"
(1" 40.00
1,000,936
2.3 45.4
54.0 6.8 40.00
3.6 24.4 2.3 2.2 54.0 NBF-36 3.6 2"
BP424-30
MPT) 1,500,000
80,000
1,334,581
BP423-30 (2" 53.00
1,334,581
1.9 61.9
72.0 4.6 53.00
3.1 33.3 1.9 1.4 72.0 NBF-45 3.1 2"
BP424-30
MPT) 2,000,000
100,000
1,668,226
BP423-40 (2" 67.00
1,668,226
2.8 82.5
90.0 4.6 67.00
4.7 44.4 2.8 1.4 90.0 PL-45B 4.7 2½"
BP424-40
MPT) 2,500,000
120,000
2,001,871
BP423-50 (2" 82.50
2,001,871
2.5 103.1
108.0 4.8 82.50
4.2 55.5 2.5 1.5 108.0 PL-75B 4.2 2½"
BP424-50
(2"103.20
MPT)
150,000
2,502,000
103.20
135.6
4.7
Larger
models
are available
upon
† Assumptions:
200 ft. TEL2.7
of copper pipe
with (6) 90 degree
2,502,000
2.7 request.
135.6
4.7

elbows.models
†† Pipe
shown upon
is notrequest.
the connection size of the heat exchanger.
aresize
available
available upon request.Larger
Provides
2º achieve
F per hour
with 180º F boiler to achieve 80º F pool temperature.
. 2º F per hour heating1)with
180º Fapprox.
boiler to
80ºheating
F pool temperature.
2) Pool
waterfrom
flowmain
rate pool
usually
requires flow by pass from main pool circulation.
rate usually requires flow
by pass
circulation.
3) to
Chlorinated
pool
waterProper
can becontrol
corrosive
to SS316L
and is
Copper. Proper control of chlorine levels is
l water can be corrosive
SS316L and
Copper.
of chlorine
levels
required
or alternate
materials of construction should be considered.
rnate materials of construction
should
be considered.

Outdoor Wood Boiler
Outdoor Wood Boiler

Boiler
Side:
Water 180º F supply, 155º F return
Boiler Side: Water 180º F supply,
155º
F return

Solar Side: 45% Propylene Glycol 149° F supply, 113° F return
Storage Tank Side: Water 104° F supply, 140° F return

Model

Heat
Radiant

Solar Side
StorageFloor
Tank Side
Radiant
Heating
Floor
Heating

Exchanged
Flow
Pressure
Drop
Drop 160º F return
Boiler
Side:
Water Pressure
180º F supply,
Boiler
Side: Water
180º
F supply,
160º
F Flow
return
Outdoor
Wood
Boiler
Radiant
Floor Side:
Water 100º
BTU/Hr
GPM
PSI F supply, 120º F retur
Radiant
Water
FPSI
supply,
F return
Boiler Floor
Side: Side:
WaterGPM
180º 100º
F supply,
155º F120º
return
BP410-10 (1" MPT) House
0.13
< 0.10
0.12
< 0.10 Radiant Floor Side
Boiler Side
Side: Water
140º
165º FFloor
return
Heat
Boiler
SideF supply,
Radiant
Side
Heat2,100
B&G
BP410-20 (1" MPT)
6,100
0.38

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