BYS_RWSeries.p65 RW Series Form 6310

User Manual: RW Series

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Form No. 6310
(09/03)

Bryan “Flexible Water Tube”

RW Series
Steam & Water Boilers
8,500,000 to 21,000,000 BTUH
Forced draft gas, oil or dual fuel fired

Steam Boiler
RW1050-S150-FDG

Water Boiler
RW2100-W-FDGO

Originators of the “Flexible Water Tube” design

A breakthrough in an industrial
water tube boiler design.
• True “flexible water tube” design
guaranteed shock free
• High quality steam for heat or
process
• Full five sq ft of heating surface
per BHP
(2)

F
M
C
J

K
D

B

E

Quality construction features:

G

A. Water side or steam side interior accessible for cleanout
and inspection, front and rear openings, upper and lower
drums.
B. Large volume water leg downcomers promote rapid
internal circulation, temperature equalization and efficient
heat transfer.
C. Boiler tube and furnace area access panels: heavy gauge
steel casing with 2" high-temperature ceramic fiber insulation, bolted and tightly sealed to boiler frame.
D. Flame observation port in access door at rear of boiler.
E. Dual side access; combustion chamber, tubes and burner
head are completely accessible from either side simplifying
maintenance and minimizing floor space.
F. Minimum sized flue vent.
G. Control panel: all controls installed with connections to
terminal strip.
H. Forced draft, flame retention head type burner. Efficient
combustion of oil or gas, plus quiet operation.
I. Heavy steel boiler frame, built and stamped in accordance
with the appropriate ASME Boiler Code.
J. Heavy gauge steel boiler jacket with rust-resistant zinc
coating and enamel finish, insulated with 1½" fiberglass to

H

L
I
A

ensure exceptionally cool outer
surface.
K. Bryan bent water tubes are
flexible, individually replaceable
without welding or rolling. Never
more than two tube configurations.
L. Pressurized design firebox
with internal water-cooled furnace with low heat release rate.
M. Steam boilers with extra large
drum with high steam release
area ensure stable water level
and dry steam.

Bryan RW Series Boiler Specifications
BOILER
MODEL (1)
RW850-W
RW850-S
RW1050-W
RW1050-S
RW1260-W
RW1260-S
RW1500-W
RW1500-S
RW1700-W
RW1700-S
RW1900-W
RW1900-S
RW2100-W
RW2100-S
NOTES:

(1)
(2)
(3)
(4)

INPUT
MBH (KW)
8,500 (2,490)
8,500 (2,490)
10,500 (3,076)
10,500 (3,076)
12,600 (3,692)
12,600 (3,692)
15,000 (4,395)
15,000 (4,395)
17,000 (4,981)
17,000 (4,981)
19,000 (5,567)
19,000 (5,567)
21,000 (6,153)
21,000 (6,153)

OUTPUT @ 80% EFFICIENCY (2) OUTPUT @ 84% EFFICIENCY (3) STEAM OUTPUT (4) HTG. SURFACE

MBH (KW)
6,800 (1,992)
6,800 (1,992)
8,400 (2,461)
8,400 (2,461)
10,080 (2,953)
10,080 (2,953)
12,000 (3,516)
12,000 (3,516)
13,600 (3,985)
13,600 (3,985)
15,200 (4,454)
15,200 (4,454)
16,800 (4,922)
16,800 (4,922)

HP (KW)
200 (1,992)
200 (1,992)
250 (2,461)
250 (2,461)
300 (2,953)
300 (2,953)
350 (3,516)
350 (3,516)
400 (3,985)
400 (3,985)
450 (4,454)
450 (4,454)
500 (4,922)
500 (4,922)

MBH (KW)
7,140 (2,092)
—
8,820 (2,584)
—
10,584 (3,100)
—
12,600 (3,691)
—
14,280 (4,183)
—
15,960 (4,675)
—
17,640 (5,167)
—

HP (KW)
213 (2,092)
—
263 (2,584)
—
316 (3,100)
—
376 (3,691)
—
427 (4,183)
—
477 (4,675)
—
527 (5,167)
—

LBS/HR (KG/HR)
—
7,009 (3,197)
—
8,658 (3,927)
—
10,389 (4,712)
—
12,368 (5,610)
—
14,020 (6,360)
—
15,670 (7,108)
—
17,319 (7,856)

SQ. FT. (M²)
1,136 (106)
1,136 (106)
1,288 (120)
1,288 (120)
1,552 (144)
1,552 (144)
1,818 (169)
1,818 (169)
2,087 (194)
2,087 (194)
2,347 (218)
2,347 (218)
2,612 (243)
2,612 (243)

APPROX. SHIP
LBS. (KG)
16,700 (7,575)
21,200 (9,616)
18,540 (8,410)
23,700 (10,750)
20,770 (9,421)
26,100 (11,838)
23,070 (10,465)
29,200 (13,245)
24,910 (11,299)
32,400 (14,697)
26,950 (12,225)
34,300 (15,559)
26,800 (13,064)
36,800 (16,693)

W = Water / S = Steam
Output and horsepower based on boiler industry standard of 80% of input.
Output and horsepower based on an average natural gas combustion efficiency of 84% for hot water boiler. Actual combustion efficiencies for oil will be higher.
Lbs. steam per hour from and at 212°F.

Guaranteed efficiency and easy
maintenance assure low cost operation
All Bryan RW Series boilers offer these operating and performance features
Guaranteed efficiency
The breakthrough in water tube boiler design that produced the RW Series provides operating efficiency so
reliable, we guarantee it to be 84% for hot water boilers
and 82% - 15 psi / 80% - 150 psi or better for steam boilers.
The Bryan Flexible Tube
Bryan’s exclusive “Flexible Tube” design eliminates the
possibility of damage from so-called “thermal shock.”
Tubes are easily removable and replaceable, without welding or rolling, eliminating long, expensive downtime should repairs
ever be required.
Water cooled furnace
The configuration of the water tubes provides a water
cooled combustion chamber.
A high percentage of the heating surface is exposed to direct radiant heat, increasing
Water
water velocities and heat
Boiler
transfer.
Large steam drum
The steam drum has generous water volume and steam
release area. This design, along with effective drum
internal functions, results in a stable water level and
produces extremely dry steam at all load conditions.
Accessibility of furnace and tube area
Inner panel provides easy and complete access to boiler
tube area. All panels are heavily insulated and sealed to
boiler frame.
Compact design, minimum floor space
With our compact water tube design, the overall size of the
unit is less than most other types of boilers, yet maintains
a full five square feet of heating surface area per HP.

Needing only 32" for tube removal, on each side of the
boiler, the RW Series boiler occupies very little space in the
boiler room. This can result in considerable savings in
building costs. Pressurized firing permits minimum sized
breaching and vent.
Multi-pass flue gas travel
High velocity five-pass flue gas travel is obtained by a
unique baffling system. This contributes to maximum fire
side heat transfer and overall high boiler efficiencies.
Thermal blend water return
Bryan’s unique “thermal blend” return blends cold or
cooler return water with warmer boiler water abridging it
to design operating temperatures. The “mixed” water flow
keeps the lower header and heating surfaces at a temperature above possible condensing conditions. This reduces
the possibility of “cold spots” and damage from corrosive
condensation.
Positive internal
circulation
Steam
Each pass of the Bryan
Boiler
water tube slopes upward. This configuration,
along with the large volume downcomer water
legs, provides the extremely rapid natural
thermal internal circulation, promoting both high
efficiency of heat transfer and uniform temperature throughout the boiler. Eliminating stress damage caused by unequal
temperature distribution is especially important for heating systems, particularly where intermittent or continuous
low temperature water returns may be encountered.

Bryan RW Series Boilers Standard and Optional Equipment
STANDARD EQUIPMENT FURNISHED
Water Boiler
Combination thermometer and altitude
gauge, ASME Code rated boiler relief
valve, water temperature control (240°F
max std.), high limit control, probe
LWCO.
Steam Boiler
Steam pressure gauge, steam pressure control, combination low water
cutoff and pump control, auxiliary low
water cutoff, high limit pressure control, ASME-rated safety valve, water
glass set.
Straight gas fired unit
Electronic combustion safety control,
automatic operating gas valve, safety
gas valve, pilot solenoid valve, pilot
ignition assembly, main manual gas
shut-off valve, pilot cock, pilot and
main gas pressure regulators, air safety
switch, control panel, all controls installed and wired. All units are standard with full modulation with proven

low-fire start and characterized fuel
metering.
Straight oil fired unit
Electronic combustion safety control,
dual oil valves oil ignition transformer,
two-stage fuel unit, gas pilot, oil nozzle
assembly, control panel, all controls
installed and wired. All units are standard with full modulation with proven
low-fire start and characterized fuel
metering.
Combination gas-oil unit
Electronic combustion safety control,
automatic operating gas valve, safety
gas valve, pilot solenoid valve, pilot
ignition assembly, main manual gas
shut-off valve, pilot cock, pilot and
main gas pressure regulators, air safety
switch, manual fuel selector switch,
dual oil valves, oil ignition transformer,
two-stage fuel unit, oil ignition and
nozzle assembly, control panel, all
controls installed and wired.

OPTIONAL EQUIPMENT,
EXTRA COST
1.
2.
3.
4.

Manual reset high limit control
Manual reset low water cutoff
Auxiliary low water cutoff
Combination low water cutoff
and feeder
5. Alarm bells or horns
6. UL, CUL, CSD-1, FM, IRI or
other insurance approved control
systems
7. Indicating lights, as desired
8. Lead-lag systems for two or
more boilers with or without
outdoor reset control
9. Draft control system
10. Low NOx package

OPTIONAL CONSTRUCTION:
Steam boiler
Optional construction to ASME Power
Boiler Code requirements for pressure
exceeding 150 psi to maximum of 300
psi design pressure.

Hot water boiler
Optional construction to ASME Power
Boiler Code requirements for temperatures exceeding 240° F and/or
pressure exceeding 160 psi to maximum of 285° F operating and 300° F
design temperature and 250 psi.
When ordering, please specify:
1. Boiler size
2. Supply and return temperatures required
3. Boiler relief valve setting
4. Type of fuel: natural, LP, or
other gas and/or No. 2 oil
5. If gas, type, BTU content,
specific gravity and pressure
available
6. Electric power voltage, phase
and frequency
7. Optional extra equipment or
construction
8. Special approvals required
(UL, CUL, CSD-1, FM, or IRI)
9. Altitude

Bryan RW Series Steam & Hot Water Boilers
D
B

J

A
I

C

G

I

F
PLAN VIEW

Boiler
Model
Number
RW850-S
RW1050-S
RW1260-S
RW1500-S
RW1700-S
RW1900-S
RW2100-S

FRONT VIEW

K
L
Height Floor to
Over
Flow
Jacket Nozzle

124
(315.0)
134
(340.4)
156½
(397.5)
179
(454.7)
201½
(511.8)
224
(569.0)
246½
(626.1)

163¾
(415.8)
1765/8
(448.6)
199¼
(506.1)
221¾
(563.2)
224¼
(620.4)
266¾
(677.5)
289½
(735.3)

107½
(273.1)
107½
(273.1)
107½
(273.1)
107½
(273.1)
107½
(273.1)
107½
(273.1)
107½
(273.1)

36
(91.4)
36
(91.4)
37
(94.0)
37
(94.0)
38
(96.5)
39
(99.1)
40
(101.6)

D
B

20
(50.8)
20
(50.8)
22
(55.9)
22
(55.9)
24
(61.0)
26
(66.0)
28
(71.1)

RW1260-W
RW1500-W
RW1700-W
RW1900-W
RW2100-W

10
(25.4)
10
(25.4)
12
(30.5)
12
(30.5)
12
(30.5)
12
(30.5)
12
(30.5)

6
(15.2)
6
(15.2)
6
(15.2)
8
(20.3)
8
(20.3)
8
(20.3)
8
(20.3)

2
(5.08)
2
(5.08)
2
(5.08)
2
(5.08)
2
(5.08)
2
(5.08)
2
(5.08)

89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)

32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)

48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)

113
(287)
113
(287)
113
(287)
113
(287)
113
(287)
113
(287)
113
(287)

F
J
E

L

I

M
G

J

PLAN VIEW

A
B
Length
Flue
of
Location
Jacket
124
(315.0)
134
(340.4)
156½
(397.5)
179
(454.7)
201½
(511.8)
224
(569.0)
246½
(626.1)

2½ NPT
(6.4)
3 NPT
(7.6)
3 NPT
(7.6)
3 NPT
(7.6)
3 NPT
(7.6)
4 NPT
(10.2)
4 NPT
(10.2)

A

H

RW1050-W

REAR VIEW

STEAM HEATING/PROCESSING BOILER DIMENSIONS in inches (cm)
D
E
F
G
H
I
J
Supply
Gas
Width
Min. Tube Clearance for
Overall
Return
Nozzle
Train
Removal
Servicing
Length
Conn. Outside
Connection 15 psi
Jacket
Clearance
Burner
150 psi

C

RW850-W

SIDE VIEW

A
B
C
Length Flue
Flue
of
Location Size
Jacket

K

Boiler
Model
Number

L

E

K
H

36
(91.4)
36
(91.4)
37
(94.0)
37
(94.0)
38
(96.5)
39
(99.1)
40
(101.6)

FRONT VIEW

C
Flue
Size
20
(50.8)
20
(50.8)
22
(55.9)
22
(55.9)
24
(61.0)
26
(66.0)
28
(71.1)

SIDE VIEW

HOT WATER HEATING BOILER DIMENSIONS in inches (cm)
D
E
F&G
H
I
J
Supply &
Gas
Width Min. Tube
Overall
Supply
Train
Return
Length
Location Outside Removal
Connection
Nozzle
Jacket Clearance
163¾
(415.8)
1765/8
(448.6)
199¼
(506.1)
221¾
(563.2)
244¼
(620.4)
266¾
(677.5)
289½
(735.3)

2½ NPT
(6.4)
3 NPT
(7.6)
3 NPT
(7.6)
3 NPT
(7.6)
3 NPT
(7.6)
4 NPT
(10.2)
4 NPT
(10.2)

8
(20.3)
8
(20.3)
8
(20.3)
8
(20.3)
8
(20.3)
10
(25.4)
10
(25.4)

9 3/8
(23.8)
9 3/8
(23.8)
9 3/8
(23.8)
9 3/8
(23.8)
9 3/8
(23.8)
9 3/8
(23.8)
9 3/8
(23.8)

89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)
89½
(227.3)

32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)
32
(81.3)

REAR VIEW

K
Clearance for
Servicing
Burner

L
Height
Over
Jacket

M
Floor to
Flow
Nozzle

48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)
48
(121.9)

104
(264.2)
104
(264.2)
104
(264.2)
104
(264.2)
104
(264.2)
104
(264.2)
104
(264.2)

110
(279.4)
110
(279.4)
110
(279.4)
110
(279.4)
110
(279.4)
110
(279.4)
110
(279.4)

Specifications subject to change without notice. Contact factory to consult on other boiler options.

Bryan Steam LLC — Since 1916
783 N. Chili Ave., Peru, Indiana 46970 U.S.A.
Phone: 765-473-6651 • Internet: www.bryanboilers.com
Fax: 765-473-3074 • E-mail: bryanboilers@iquest.net
Form No. 6310

©2003 Bryan Steam LLC

Printed in USA
103-5251



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