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High efficiency hot water and steam boilers
for commercial and industrial applications
Bryan K Series Boiler Specifications
NOMINAL OUTPUT STEAM HEATING APPROX.
BOILER INPUT
OUTPUT SURFACE SHIP WT.
MODEL MBH (KW)
MBH (KW) BHP LBS/HR* SQ. FT. (M²) LBS. (KG)
K-350 3,500 (1,025.5) 2,800 (840.4) 84 2,886 424 (39.4) 5,800 (2,636)
K-400 4,000 (1,172.0) 3,200 (937.6) 96 3,298 480 (44.6) 6,410 (2,912)
K-450 4,500 (1,318.5) 3,600 (1,054.8) 108 3,710 540 (50.2) 7,020 (3,188)
K-500 5,000 (1,465.0) 4,000 (1,172.0) 120 4,122 600 (55.7) 7,630 (3,466)
K-550 5,500 (1,611.5) 4,400 (1,289.2) 131 4,535 661 (61.4) 8,420 (3,825)
K-600 6,000 (1,758.0) 4,800 (1,406.4) 143 4,947 717 (66.6) 8,850 (4,020)
K-650 6,500 (1,904.5) 5,200 (1,523.6) 155 5,359 777 (72.2) 9,460 (4,298)
NOTES: * Lbs. steam per hour from and at 212°F.
Bryan flexible water tube boilers are ideally suited for
both hot water and steam space heating systems as
well as either high or low pressure process steam. In
a range of sizes from 3,500,000 to 6,500,000 BTUH
input, Bryan K series flexible tube boilers are ideal for
many commercial, institutional and industrial appli-
cations. These include healthcare facilities; schools;
apartments; churches; office buildings; correctional
facilities; airports; sewage treatment plants; golf,
tennis and fitness clubs. Hospitals, dairies, restau-
rants, laundries, dry cleaners, food processing, tire
recapping and metal plating are just a few of the
many applications.
All Bryan boilers are built in accor-
dance with the requirements of the ASME
Boiler and Pressure Vessel Code.
Efficient “Flexible Water Tube”
design
The Bryan bent water tube provides rapid
internal circulation — for maximum heat
transfer and operating efficiency.
Easily replaceable tubes
Tubes are easily removable and replaceable without
welding or rolling. Requires little service space.
No “Thermal Shock”
The flexibility of the bent water tube design elimi-
nates all possible damage from "Thermal Shock"
and from stresses caused by poor or unequal inter-
nal circulation. This is particularly important with
forced hot water heating systems designed for higher
temperatures and greater temperature drops.
Steam Boilers:
Steam release area
Large, full-size steam drum provides for dry steam
and stable water level.
High or low pressure construction
Boiler is constructed as standard for 15 psi or 150 psi
maximum working pressure. Also available for higher
pressures to 300 psi.
Water Boilers:
High or low pressure construction
Boiler is constructed as standard for 160
psi maximum working pressure at 230°F
operating temperature and 250°F design
temperature. Also available for higher
pressures to 250 psi, at 285°F operating
temperature and 300°F design tempera-
ture.
Natural internal circulation
The water tube design and the large
downcomer legs provide adequate inter-
nal circulation without concern over exterior pump-
ing conditions. Low pressure drop through boiler.
Compact — minimum floor space
Requires less floor space than most boilers, and
tubes can be removed and replaced from one side,
further minimizing space needs.
Shipped completely assembled and wired. Units
can also be shipped "Knocked Down" for on-site
assembly.