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SUBMITTAL
A-545B
JOB:

REPRESENTATIVE:

UNIT TAG:

ORDER NO.

DATE:

ENGINEER:

SUBMITTED BY:

DATE:

CONTRACTOR:

DATE:

APPROVED BY:

Circuit Setter
Calibrated Balance Valves
with Flanged Connections
DESCRIPTION
The Bell & Gossett Circuit Setter calibrated balance valve is a
precision machined triple purpose balancing instrument. It is precisely
calibrated for use as a presettable balance valve, variable orifice flow
meter and positive shut-off service valve.
Valves are furnished with a calibrated nameplate and memory stop
indicator which permits the value to be preset to a fixed open position
and then closed for service without disturbing valve setting.
Valves are equipped with capped readout valves fitted with internal
check valves. Sizes 2-1/2"-4" (brass ball) include a 1/4" NPT tapped
and plugged drain port as standard.
MAXIMUM OPERATING TEMPERATURE
250°F (121°C)
MAXIMUM WORKING PRESSURE
175 PSIG (1207 kPa)

CONSTRUCTION
Sizes 2-1/2"-4"
Body: Cast Iron
Ball: Brass
Seat Rings: Glass and carbon filled TFE
Readout Valves: Brass with EPT check valve
Stem "O" Ring: EPDM
Sizes 4"-12"
Body & Bonnet - Flanged: Cast Iron
Disc: Brass with EPDM insert
Stern: Stainless Steel
Packing: Teflon-Graphite (Asbestos-Free)
Gasket: Synthetic Fiber - Nitrile Binder (Asbestos-Free)
Seal Ring: EPDM
Bushing: Zinc Plated Steel

TYPICAL SPECIFICATION
Furnish and install as shown on plans and with manufacturer's
recommendations Model CB calibrated balance valves.
PRE-SET BALANCE FEATURE
Valves to be designed to allow installing contractor to pre-set balance
points for proportional system balance prior to system start-up in
accordance with pre-set balance schedule.
VALVE DESIGN AND CONSTRUCTION
Valves shall be of heavy-duty cast iron {flanged} construction with 125
psi ANSI flange _____ connections suitable up to 175 psi working
pressure. Valves 2-1/2" - 4" pipe shall have a brass ball with glass and
carbon filled TFE seat rings. valves 4" - 12" shall be fitted with a
bronze seat, replaceable bronze disc with EPDM seal insert, and
stainless steel stem.
DESIGN PRESSURE/TEMPERATURE
175 psig at 250°F
All balance valves to be ITT Bell & Gossett Model No. CB-__________
(note sizes)

IMPORTANT
When monitoring system flow care must be exercised to avoid
direct skin or eye contact with liquids that may escape. Liquids
with temperatures in excess of 120°F (49°C) may cause burns.
Bell & Gossett Circuit Setter Balance Valves are not
recommended for use with meter connections pointing downward.
To retain calibrated accuracy, a minimum length of unrestricted
straight pipe adjacent to the valve should be maintained as
follows:
SIZE
INCHES (mm)
2-1/2"-4"
(63.5-101.6)
4"-12"
(63.5-304.8)

UPSTREAM "A"
(In Pipe Diameters)

DOWNSTREAM "B"
(In Pipe Diameters)

3

1

5

2

Best use results maximize straight pipe length entering and
leaving valve. Obstructions or changes in planar flow profiles
entering valve may affect accuracy if too close to valve.

© COPYRIGHT 2009 ITT Corporation

Bell & Gossett

CIRCUIT SETTER CALIBRATED BALANCE VALVES

DIMENSIONS AND WEIGHTS *
MODEL
NO.
CB−2-1/2F
CB−3F
CB−4
CB−4F
CB−5F
CB−6F
CB−8F
CB−10F
CB−12F

PIPE
SIZE
2-1/2
(63.5)
3
(76.2)
4
(101.6)
4
(101.6)
5
(127)
6
(152.4)
8
(203.2)
10
(254)
12
(304.8)

DIMENSIONS IN INCHES (MM)
A
CLOSED

CONNS.

OPEN

FLGD.

−

−

FLGD.

−

−

−

−

16-7/8
(428.6)
18-1/2
(470.0)
20-3/4
(527.1)
24-3/4
(628.7)
28-7/8
(733.4)
33-1/2
(851.0)

15-7/8
(403.2)
17-1/4
(438.2)
19-1/4
(489.0)
23-1/4
(590.6)
26-1/2
(673.1)
31-1/8
(790.6)

FLGD.
FLGD.
FLGD.
FLGD.
FLGD.
FLGD.
FLGD.

A-545B

D
B
6-9/16
(166.7)
6-13/16
(173.0)
8
(203.2)
14-1/2
(368.3)
16
(406.4)
18
(457.2)
21-1/2
(546.1)
25-1/2
(647.7)
30
(762.0)

C

OPEN

CLOSED

E

−

−

−

−

−

−

−

−

−

−

−

−

4-1/2
(114.3)
5
(127.0)
5-1/2
(139.7)
6-3/4
(171.5)
8
(203.2)
9-1/2
(241.3)

15-11/16
(398.5)
16-27/32
(427.8)
19-1/8
(485.8)
22-3/8
(568.3)
26
(660.4)
29-11/16
(754.1)

13-15/16
(354.0)
15-1/16
(382.6)
17
(431.8)
20-5/16
(516.0)
23-3/16
(589.0)
26-9/16
(674.7)

6-1/4
(158.8)
6-7/8
(174.6)
8-1/4
(209.6)
10-3/8
(263.5)
12-1/4
(311.2)
14-1/2
(368.3)

F
7
(177.8)
7-1/2
(190.5)
9
(228.6)
−
−
−
−
−
−

MAX. WIDTH
OF VALVE
−
−
−
9
(228.6)
10
(254.0)
11
(279.4)
14-1/4
(362.0)
17
(431.8)
20
(508)

WEIGHT IN
LBS. (Kg)
23
(10.4)
29
(13.2)
41
(18.5)
94
(43)
114
(52)
186
(85)
316
(144)
458
(208)
662
(301)

All Dimensions +/- 0.125" (3.2 mm) tolerance. Dimensions are subjected to change. Not to be used in construction purposes unless certified.

SCHEDULE
MODEL NO.
CB−2-1/2F
CB−3F
CB−4
CB−4F
CB−5F
CB−6F
CB−8F
CB−10F
CB−12F

ITT
8200 N. Austin Avenue
Morton Grove, IL 60053
Phone (847)966-3700
Facsimile (847)966-9052
www.bellgossett.com

PART NO.
117116
117117
117035
117470
117471
117472
117473
117474
117475

TAGGING INFORMATION

QUANTITY



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