SIZING TIPS:
Typically, 1 gallon
of storage per Boiler Horsepower (BHP)
is recommended.
If condensate returns
exceed 50%, then
a factor of 1.5 is
recommended.
Lockwood boiler feed systems are packaged, atmospheric-pressure, storage tanks built for commercial or industrial steam systems. The storage tank blends makeup water, condensate returns, and water treatment chemicals before being pumped to the steam boiler. The tank is elevated over the feed water pump(s) to provide sufficient NPSH for water temperatures up to 200°F. Vertical, multistage, centrifugal feedwater pumps are typically utilized since they perform well for low flow, high pressure, pumping applications.
Systems can be fully customized to meet each customer’s specific needs. Systems can be as simple or complex as desired. The storage tank can be made of carbon steel or upgraded to stainless steel for increased life. Makeup water controls can be mechanical, float/probe type with solenoid valve, or modulating via an electronic control valve. Steam preheat packages are typically utilized to elevate the water temperature before sending makeup water to the boiler. Other typical trim items include: thermometer with separable well, gauge glass, and pump suction piping with shutoff valve and strainer.
Model G35 G60 G100 G180 G250 G350 G500 G750
STORAGE (GAL) 35 60 100 180 250 350 500 750
STORAGE TANK DIAMETER (IN) 18 22 26 30 36 42 42 48
STORAGE TANK LENGTH (IN) 32 36 42 60 60 60 84 96
DIMENSION A (IN) 50 55 61 79 79 79 103 115
DIMENSION B (IN) 33 36 42 60 60 60 84 92
DIMENSION C (IN) 32 35 40 42 48 53 53 58
DIMENSION D (IN) 21 25 31 32 38 44 44 49
DIMENSION E (IN) 32 48 60 60 60 60 60 72
DIMENSION F (IN) 46 64 78 80 83 86 86 101
CONDENSATE RETURN (IN) 2 2-1/2 3 4 4 4 4 4
OVERFLOW (IN) 2 2-1/2 3 4 4 4 4 4
VENT LINE (IN) (2) 1-1/4 (2) 1-1/4 (2) 1-1/2 (2) 2 (2) 2-1/2 (2) 3 (2) 3 (2) 3
CHEMICAL INJECTION (IN) (1) 1 (1) 1 (2) 1 (2) 1 (2) 1 (2) 1 (2) 1 (2) 1
DRAIN (IN) 1 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 2
SHIPPING WEIGHT (LBS) 200 275 375 575 700 975 1200 1500
OPERATING WEIGHT (LBS) 375 550 825 1,400 1,875 2,575 3,400 4,750
FLOODED WEIGHT (LBS) 500 750 1,175 1,975 2,800 3,900 5,200 7,550
Larger models available.
Contact Lockwood Sales
for more information.
NOTES:
- Typical trim and options shown on the Boiler Feed System Option Flyer
- All dimensions and volumes are approximate and subject to change without notice
- Pump connection quantity and size vary by application
- Stand height shown is typical but can be adjusted as needed by application
- Steam connection and makeup water connections vary by application
- Weights apply to tank and stand only and do not include pumps or suction/discharge piping
