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Self-Priming Utility Pump

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Gorman-Rupp 81 1/4B3-E.33 1P Self-Priming Utility Pump

1-1/4 in. FNPT Inlet/Outlet, 1/3 HP, for High Volume, Low Pressure Sump or Liquid Transfer, Self-Priming to 20 ft.

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Model # Description Price Qty
81 1/4B3-E.33 1P 1-1/4 in. FNPT Inlet/Outlet, 1/3 HP, for High Volume, Low Pressure Sump or Liquid Transfer, Self-Priming to 20 ft. $2,585.00
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Gorman-Rupp - 81 1/4B3-E.33 1P - Self-Priming Utility Pump

The Gorman-Rupp pump is designed for applications requiring high volume, low pressure sump or liquid transfer. 1-1/4 in. NPT port size available with 1/3 horsepower single-phase motor. This model is self-priming and is equipped with Viton® seals with carbon and Ni-resist faces capable of handling liquids with temperatures to 160°F. Maximum operating pressure to 26 PSI.

  • Cast Iron Construction
  • Copper Alloy Impeller
  • 1-1/4" NPT suction and discharge ports
  • 1/3 HP ODP Motor
  • Built-in brass, Buna-N Nylon Flap Valve
  • 115/230 VAC 8 ft. (2.4 m) Long Power Cord
  • Float Switch
  • Strainer
  • Self-Priming Up to 20 ft. Lift
  • Maximum Operating Pressure to 26 PSI
  • Maximum Temperature 160°F (71°C)
  • Viton® Carbon Ni-Resist Mechanical Seal
  • Solids-Handling to 5/16" Diameter

For proper operation of this pump, it is a requirement to check the chemical resistance chart before ordering. If the pump is used for an application that the pump material is not compatible with the warranty will be voided.

Gorman-Rupp Chemical Resistance Chart

    115V/1P Cast Iron ODP Pump

  • Driver Type: Electric Motor (1/3 HP)
  • Max Solids: 5/16 in. (8 mm)
  • Suction x Dis. (NPT): 1-1/4" X 1-1/4"
  • Construction: Cast Iron
  • Seal: Viton® Carbon Ni-Resist
  • VAC 60 Hz: 115/230
  • Phase: 1
  • Amps: 8.6/4.3
  • Motor Enclosure (RPM): ODP (3450)
  • Weight: 42 lbs
  • Model #: 81 1/4B3-E.33 1P
ModelABCDESuction*Discharge*
81 1/4B3-E.33 1P7.476.507.194.6214.321.251.25

(*)Standard NPT Pipe Threads