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W4100 (Boiler Feed Electric Pumps)
To learn and see more about Boiler Feed Pumps, Please Visit the Boiler Feed Section.

The Boiler Feed Pumps (W4100 series) are equipped with Cast Iron bodies and Bronze Impellers. The pump receiver tank is made of Carbon Steel and available in Simplex or Duplex configurations.

ModelDischarge Pressure (psig)Motor (HP)Flow Rate (GPM)Boiler (HP)Receiver Capacity (Gallons) (lb/hr)Weight (lbs)System
W4122GF201/331530200Simplex System
W4132JF301/231530260Simplex System
W4142JF40131530265Simplex System
W4152JF50231530275Simplex System
W4124GF201/363030200Simplex System
W4134JF301/263030260Simplex System
W4144JF40163030265Simplex System
W4154JF50263030275Simplex System
W4132JDF301/231530300Duplex System
W4126GF201/394545240Simplex System
W4136JF301/294545300Simplex System
W4146JF40194545305Simplex System
W4156JF50294545315Simplex System
W4128GF201/3126060275Simplex System
W4138JF301/2126060335Simplex System
W4148JF401126060340Simplex System
W4158JF502126060350Simplex System
W4122GDF201/331530240Duplex System
W4132JDF301/231530300Duplex System
W4142JDF40131530310Duplex System
W4152JDF50231530330Duplex System
W4124GDF201/363030240Duplex System
W4134JDF301/263030300Duplex System
W4144JDF40163030310Duplex System
W4154JDF50263030330Duplex System
W4126GDF201/394545280Duplex System
W4136JDF301/294545340Duplex System
W4146JDF40194545350Duplex System
W4156JDF50294545370Duplex System
W4128GDF201/3126060335Duplex System
W4138JDF301/2126060395Duplex System
W4148JDF401126060405Duplex System
W4158JDF502126060425Duplex System
Product Overview
Boiler Feed Pumps Used (W4100 series - carbon steel receivers) for Boiler Feed applications, the operation of the pump is controlled by the water level control system on the boiler. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. If the amount of condensate being returned to the receiver tank is inadequate, additional boiler feed water is automatically added to the receiver tank.

SIMPLEX & DUPLEX - Water Level Control System on boiler is used to activate the pump.
SIMPLEX & DUPLEX - Automatic Make-up Water Valve is activated by a level float that adds additional boiler feed water to the receiver tank if required.
Features
• Fabricated steel receivers (W4100), Cast Iron (W4200), Stainless Steel (W4300)
• Simplex and duplex packages
• Bronze-fitted centrifugal pumps
• Energy-efficient 3450 RPM motors
• Automatic venting of mechanical seal
• Ceramic pump seal with carbon face
• Heavy-duty float switch
• All steel and iron receivers over 24 gallons include a threaded NPT overflow port
How It Works
For Boiler Feed units, the operation of the pump is controlled by the water level control device which is part of the boiler control package. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. On Duplex boiler feed units, an Electrical Alternator is used to activate one pump at a time in alternating fashion. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. This is used if the amount of condensate being returned to the receiver tank is inadequate.
Selection / Sizing / Capacities
• For a Boiler Feed Pump, the operation of the pump is controlled by the water level control system on the boiler. When the boiler requires water, the pump switches on pumping water from the receiver into the boiler. The receiver tank also contains an internal make-up water valve actuated by a stainless steel float. This is used if the amount of condensate being returned to the receiver tank is inadequate.
• On Duplex boiler feed pumps, an Electric Alternator is required to cycle operation between the two pumps.
• The capacity of the boiler feed pump in Gallons Per Minute (GPM) is based on the Boiler horsepower (hp).

For Example: A 15 horsepower boiler will produce up to 500 lbs/hr of steam when running at maximum load which translates to requiring 1.0 GPM of water make-up to the boiler. Using a 3:1 safety factor would require a 3.0 GPM Boiler Feed pump. The recommended receiver sizes based on boiler horsepower are shown in selection chart.

• Select a discharge pressure for the pump to overcome boiler pressure and all system back pressure including frictional piping losses. Pump discharge pressures of 20-50 PSI are available.
Dimension and Weights


Please click on individual model to see dimension.  

Options
• Mechanical and Electrical Alternators
• Gauge Glass
• Thermometers
• Discharge Pressure Gauges
• Isolation valves
• Magnetic Starters with HOA Selector Switch
• 1750 RPM Motors
• Larger pumping capacities & higher discharge pressures
• Wide variety of control panels
• Oversized Receivers (45, 60 & 95 gallons)
• Stainless Steel Receivers
• High Temperature (250°F) Components
Installation and Maintenance
Place on an elevated, level and substantial foundation in a clean, dry and accessible area. Locate receiver tank inlet below lowest point of the condensate return lines.
Sample Specification
Pump(s) shall be of the centrifugal type with 2-piece closed bronze impeller, cast iron housing and stainless steel motor shaft. A flat perforated brass strainer shall be provided in the inlet of the pump.