Zoeller BN137 Effluent Pump

Item #: ZOEBN137

Zoeller BN137 Effluent Pump
Pump Performance Curve Model 137-139


3-Year Manufacturer's Warranty on Zoeller Effluent Pumps

The Zoeller BN137 Effluent Pump comes with a 3-year manufacturer's warranty.

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The Zoeller BN137 Effluent Pump has 1/2 HP motor, 1-1/2" NPT discharge with a solids handling up to 5/8" capability.

The Zoeller BN137 Effluent Pump is cast iron with powder coated epoxy finish and is part of the "Flow-Mate" series of submersible pumps designed for use in residential or light commercial dewatering applications and can be used to transfer groundwater or effluent.

All Zoeller pumps are 100% pressure-tested, submerged and run to ensure quality and reliability for years of trouble-free performance.


  • Corrosion-resistant, powder coated epoxy finish
  • Durable, cast iron construction - switch case motor and pump housing, base and impeller
  • Float-operated, 2-pole mechanical switch
  • No sheet metal parts to rust or corrode
  • Oil-filled and hermetically-sealed, automatic reset thermal overload protected (1 Ph) motor
  • Stainless steel screws, guard, handle, arm and seal assembly
  • Upper and lower sleeve bearings running in bath of oil
  • Carbon and ceramic shaft seal


Motor1/2 hp
Voltage115 or 460
Phase1 or 3 Ph
Amps1.4 - 10.7
Weight48 lbs.
Dimensions12-5/16"L x 12-3/4"H
Note: The sizing of effluent systems normally requires variable level float(s) controls and properly sized basins to achieve required pumping cycles or dosing timers with nonautomatic pumps.

Pumps must be operated in upright position.
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