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W4200 (Electric Condensate Pumps)
To learn and see more about Condensate Pumps, Please Visit the Condensate Pumps Section.

The Condensate Return Pumps (W4200 series) are equipped with Cast Iron bodies and Bronze Impellers. The pump receiver tank is made of Cast Iron and available in Simplex or Duplex configurations. 

ModelDischarge Pressure (psig)Motor (HP)Flow Rate (GPM)EDRReceiver Capacity (Gallons) (lb/hr)SystemWeight (lbs)
W4222G201/3320006Simplex System150
W4224G201/3640006Simplex System150
W4226G201/39600015Simplex System260
W4228G201/312800015Simplex System260
W42420J401 1/2302000036Simplex System360
W42210G201/2151000015Simplex System260
W42230JD201453000036Duplex System430
W42215G201/222.51500024Simplex System300
W42225J203/437.52500036Simplex System350
W42240J201 1/2604000050Simplex System420
W4232J301/29600015Simplex System165
W42250J202755000050Simplex System425
W4232J301/29600015Simplex System165
W4234J301/2640006Simplex System165
W4236J301/29600015Simplex System295
W4238J301/212800015Simplex System295
W42315J30122.51500024Simplex System305
W42320J301302000036Simplex System355
W42230JD302604000050Simplex System425
W4246J4019600015Simplex System295
W4242J401320006Simplex System170
W4246J4019600015Simplex System295
W4248J40112800015Simplex System295
W42410J401151000015Simplex System295
W42415J401 1/222.51500024Simplex System310
W42420J401 1/2302000036Simplex System360
W42425J401 1/237.52500036Simplex System360
W42430J402453000036Simplex System365
W42440J402604000050Simplex System425
W42450J403755000050Simplex System435
W4252J502320006Simplex System175
W4256J5029600015Simplex System315
W4256J5029600015Simplex System315
W4258J50212800015Simplex System315
W42510J502151000015Simplex System315
W42515J50222.51500024Simplex System330
W42520J503302000036Simplex System370
W42525J50337.52500036Simplex System370
W42530J503453000036Simplex System370
W42540J505604000050Simplex System445
W4248JD40112800015Duplex System360
W42550J505755000050Simplex System445
W4226GD201/39600015Duplex System295
W4228GD201/312800015Duplex System295
W42210GD201/2151000015Duplex System295
W42215GD201/222.51500024Duplex System335
W42220GD203/4302000036Duplex System445
W4222G201/3320006Simplex System150
W42230JD201453000036Duplex System430
W42240JD201 1/2604000050Duplex System500
W42250JD202755000050Duplex System510
W42550J505755000050Simplex System445
W4236JD301/29600015Duplex System360
W4238JD301/212800015Duplex System365
W42310JD303/4151000015Duplex System365
W42330JD301 1/2453000036Duplex System440
W42340JD302604000050Duplex System525
W4246JD4019600015Duplex System360
W4248JD40112800015Duplex System360
W42410JD401151000015Duplex System360
W42415JD401 1/222.51500024Duplex System390
W42420JD401 1/2302000036Duplex System440
W4226G201/39600015Simplex System260
W42425JD401 1/237.52500036Duplex System440
W42430JD402453000036Duplex System450
W42230JD201453000036Duplex System430
W42450JD403755000050Duplex System525
W4256JD5029600015Duplex System395
W4258JD50212800015Duplex System395
W42510JD502151000015Duplex System395
W42515JD50222.51500024Duplex System415
W42520JD503302000036Duplex System460
W42525JD50337.52500036Duplex System460
W42530JD503453000036Duplex System460
W42540JD505604000050Duplex System535
W42550JD505755000050Duplex System535
W42420JD401 1/2302000036Duplex System440
W42230JD302604000050Simplex System425
W4244J303755000050Simplex System435
Product Overview
Condensate Return Pumps Used (W4200 series - cast iron receivers) for returning condensate from the facility back to the boiler room. In Condensate Return applications, the operation of the pump is controlled by a Float Switch located on the receiver tank. The pump turns on when the receiver tank is full and shuts off when emptied. Duplex units contain a Mechanical Alternator float switch to alternate operation between the two pumps.

SIMPLEX - Float Switch is used to activate the pump.
DUPLEX - Mechanical Alternator (used in place of the Float Switch found on Simplex units) is used to cycle operation between the 2 pumps.
• 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
The float, which is connected to the switch assembly, rises when condensate enters the receiver tank. When the float rises above its set point, it energizes the motor on the pump. Once started, the pump will continue to run until the water level drops below the bottom position of the float switch.There it will de-energize the motor to shut off the pump. This cycle repeats as condensate begins to fill the receiver tank. On duplex systems the float switch is replaced with a Mechanical Alternator-Switch connected to a float. The Mechanical Alternator cycles use between the two pumps, allowing only one pump to run at a time under normal conditions. If the condensate reaches a high water level, both pumps will be activated.
Selection / Sizing / Capacities
• A Condensate Return Pump contains an automatic float switch in the receiver tank to activate the pump when the tank is filled and deactivate when empty.
• On Duplex units, the standard float switch is replaced with a Mechanical Alternator float switch to alternate operation between the two pumps. Must be ordered separately. An Electric Alternator is also an option.
• The capacity of the condensate return pump in Gallons Per Minute (GPM) is based on the amount of Effective Direct Radiation (EDR) in sq ft. of heating surface in the facility that the pump is expected to handle.

For Example: an EDR of 2000 sq. ft. can condense up to 500 lbs/hr of steam which translates to 1.0 GPM of condensate flow. Using a 3:1 safety factor would require a 3.0 GPM Condensate Return pump. The properly sized receiver tank that is adequate for that pump capacity is shown in the model selection chart for Condensate Return units. Larger receiver sizes are always desireable in order to cool condensate.

• Select a discharge pressure for the pump to overcome all system back pressures including frictional piping losses. Pump discharge pressures of 20-50 PSI are available. Selecting a pump with a significantly higher discharge pressure than required can cause pump to cavitate.
Dimension and Weights

Please click on individual model to see dimension.  


• 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.