Form No. 4950
(1/03)
Bryan “Flexible Water Tube”
K Series
Steam & Water Boilers
3,500,000 to 6,500,000 BTUH
Atmospheric gas fired
Steam Boiler
K-350-S150-GI
Water Boiler
K500-W-GI
Originators of the “Flexible Water Tube” design
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Design and construction features
that assure reliable performance
A. Heavysteelboilerframe,builtandstampedinaccordancewiththeASMEboilercode.
Hot water boilers constructed as standard for operating pressures to 160 psi. Also
availableforhigheroperatingpressures.Steamboilersconstructedasstandardfor
operating pressures of 15 psi or 150
psi. Also available for higher operat-
ing pressures. Large steam release
area for dry steam.
G
B. Waterlegdowncomerstoinsurerapid
internal circulation and temperature
equalization.
B
C. Bryan flexible water tubes, easily re-
placeable, requiring no welding or
rolling.Tubesinstalledfromoneside.
A
H
C
D. Boilertubeaccesspanelboltedtightly
and sealed to boiler frame. Con-
structed of 2" insul-wool high tem-
peratureinsulationinsteelframework.
Tubesinstalledfromonesideforeasy
accessibleserviceandinspection.
D
E
F
E. Boilerjacket,heavygaugezinccoated,
with attractive enamel finish. Boiler
jacketinsulatedwith1½"fiberglassto
insurecooljacket.
F. Atmospheric gas burner controls — alloy steel
atmosphericburner.Quietelectricignitionandoperation.
Nomovingpartsorcomplicatedadjustments.
G. All controls, gauges, relief valve(s) are factory installed and wired and easily
accessible for servicing.
H. Control panel: all controls installed and connected to terminal strip.
Bryan K Series Boilers Standard and Optional Equipment
pilotandmaingaspressureregulators,
barometricdraftcontroller,allcontrols
installed and wired standard voltage
120/1/60.
STANDARD EQUIPMENT
FURNISHED
9. Lead-lag systems for two or
moreboilerswithorwithout
outdoorresetcontrol
Whenordering,pleasespecify:
1. Boilersize
WaterBoiler
10. Heatexchangercoilsfor
domesticwater
Combinationthermometerandaltitude
gauge, ASMECoderatedboilerrelief
valve,watertemperaturecontrol(240°F
max std.), high limit control, probe
LWCO.
2. Supplyandreturn
temperaturesrequired
OPTIONAL EQUIPMENT,
EXTRACOST:
3. Boilerreliefvalvesetting
4. Type of fuel: natural or LP
OPTIONAL
CONSTRUCTION:
Steam boiler
Optional construction to ASME
Power Boiler Code requirements for
pressure exceeding 150 psi to maxi-
mum of 300 psi design pressure.
1. Manual reset high limit control
2. Manual reset low water cutoff
3. Auxiliary low water cutoff (water)
SteamBoiler
5. If gas, type, BTU content,
specificgravityand
Combinationlowwatercutoffandpump
control, auxiliary low water cutoff with
manual reset, high limit pressure con-
trol, ASME-rated safety valve, water
glass set.
pressureavailable
4. Combinationlowwatercutoff
andfeeder
6. Optionalextraequipment
orconstruction
5. Alarm bells or horns
Hot water boiler
7. Specialapprovalsrequired
(UL, CSD-1, FM, or IRI)
6. UL, CSD-1, FM, IRI or other
insuranceapprovedcontrol
systems
Optional construction to ASME
Power Boiler Code requirements
for temperatures exceeding 240°
F and/or pressure exceeding 160
psi to maximum of 285° F operat-
ing and 300° F design tempera-
ture and 250 psi.
Atmosphericequipment
8. Altitude
Electroniccombustionsafetycontrol,
automaticoperatinggasvalve,safety
gasvalve,pilotsolenoidvalve,electric
ignition assembly, main manual gas
shut-off valve, pilot shut-off valve,
7. Low fire start, Hi-Lo or
modulationfirecontrol
8. Indicatinglights, asdesired
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Bryan K Series Steam & Hot Water Boilers
STEAM BOILER DIMENSIONS—inches (cm)
A
B
C
D
E*
F
G
H
I
J
K
L
BOILER
MODEL
Length
Over
Width Min. Tube
Outside Removal
Height
Over
Height Floor to
Supply Nozzle
Flue
Flue
Size
Overall Gas Train
Length Connection
Feed
Over
Flow
Location
Connect.
15#
150#
Jacket
Jacket Clearance Barometric Jacket
Nozzle
1071/4
(272.42)
541/8
(137.48)
20
1231/4
21/2 NPT
(6.35)
6FLG
(15.24)
4 FLG
(10.16)
2 NPT
54
32
(81.28)
1063/4
833/4
881/4
K-350-S
K-400-S
K-450-S
K-500-S
K-550-S
K-600-S
K-650-S
(50.80) (313.06)
(5.08) (137.16)
(271.15)
(212.71) (224.16)
117
59
24
133
21/2 NPT
(6.35)
8 FLG
(20.32)
6 FLG
(15.24)
2 NPT
(5.08) (137.16)
2 NPT 54
(5.08) (137.16)
2 NPT 54
(5.08) (137.16)
2 NPT 54
(5.08) (137.16)
2 NPT 54
(5.08) (137.16)
2 NPT 54
(5.08) (137.16)
54
32
1103/4
833/4
881/4
(297.13)
(149.86)
(60.96) (337.82)
(81.28)
(281.31)
(212.71) (224.16)
1293/4
653/8
24
1453/4
2 NPT
(5.08)
8 FLG
(20.34)
6 FLG
(15.24)
32
(81.28)
32
(81.28)
32
(81.28)
32
(81.28)
1103/4
833/4
881/4
(329.57)
(166.05)
(60.96) (370.21)
(281.31)
(212.71) (224.16)
1421/2
713/4
24
1581/2
2 NPT
(5.08)
8 FLG
(20.32)
6 FLG
(15.24)
1103/4
833/4
881/4
(361.95)
(182.25)
(60.96) (402.59)
(281.31)
(212.71) (224.16)
1551/2
781/4
24
1711/2
21/2 NPT
(6.35)
10 FLG
(25.40)
6 FLG
(15.24)
1103/4
833/4
881/4
(394.97)
(198.76)
(60.96) (435.61)
(281.31)
(212.71) (224.16)
165
(419.10)
178
(452.12)
83
24
181
21/2 NPT
(6.35)
10 FLG
(25.40)
6 FLG
(15.24)
1103/4
833/4
881/4
(210.82)
(60.96) (459.74)
(281.31)
(212.71) (224.16)
891/2
24
194
21/2 NPT
(6.35)
10 FLG
(25.40)
6 FLG
(15.24)
32
(81.28)
1103/4
833/4
881/4
(277.33)
(60.96) (492.76)
(281.31)
(212.71) (224.16)
WATER BOILER DIMENSIONS—inches (cm)
A
B
C
D
E*
F
G
H
I
J
K
L
BOILER
MODEL
Length
Over
Width
Outside
Jacket
Min. Tube
Removal
Height
Height
Over
Floor to
Flow
Flue
Flue
Overall Gas Train Supply
Length Connection Nozzle
Return
Nozzle
Over
Location
Size
Jacket
Clearance
Barometric
Jacket
Nozzle
1071/4
(272.42)
541/8
(137.48)
24
(60.96)
24
(60.96)
26
(66.04)
28
(71.12)
30
(76.20)
30
(76.20)
30
(76.20)
1231/4
21/2 NPT
(6.35)
4 FLG
4 FLG
(10.16)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
481/4
32
(81.28)
32
(81.28)
32
(81.28)
32
(81.28)
32
(81.28)
32
(81.28)
32
(81.28)
971/2
701/2
731/2
K-350-W
K-400-W
K-450-W
K-500-W
K-550-W
K-600-W
K-650-W
(313.06)
(10.16)
(122.56)
(247.65)
(179.07)
(186.89)
117
59
133
21/2 NPT
(6.35)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
6 FLG
(15.24)
481/4
971/2
701/2
731/2
(297.13)
(149.86)
(337.82)
(122.56)
(247.65)
(179.07)
(186.89)
1293/4
653/8
1453/4
2 NPT
(5.08)
481/4
991/2
701/2
731/2
(329.57)
(166.05)
(370.21)
(122.56)
(252.73)
(179.07)
(186.89)
1421/2
713/4
1581/2
2 NPT
(5.08)
481/4
1011/2
701/2
731/2
(361.95)
(182.25)
(402.59)
(122.56)
(257.81)
(179.07)
(186.89)
1551/2
781/4
1711/2
21/2 NPT
(6.35)
481/4
1031/2
701/2
731/2
(394.97)
(198.76)
(435.61)
(122.56)
(262.89)
(179.07)
(186.89)
165
(419.10)
178
(452.12)
83
181
(459.74)
21/2 NPT
(6.35)
6 FLG
(15.24)
481/4
1031/2
701/2
731/2
(210.82)
(122.56)
(262.89)
(179.07)
(186.89)
891/2
194
(492.76)
21/2 NPT
(6.35)
6 FLG
(15.24)
481/4
1031/2
701/2
731/2
(277.33)
(122.56)
(262.89)
(179.07)
(186.89)
NOTE: * Gas train and control location dimensinos will vary depending on job specifications and conditions.
Dimensions and specifications are subject to change without notice. Consult factory for certified dimensions.
Bryan Steam LLC — Leaders Since 1916
783 N. Chili Ave., Peru, Indiana 46970 U.S.A.
Phone:765-473-6651 • Internet:www.bryanboilers.com
Fax: 765-473-3074
•
Form No. 4950
©2002 Bryan Steam LLC
Printed in USA
13-4428
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