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Self-Priming Utility Pumps

Gorman-Rupp self-priming utility pumps are made for heavy duty use. The pumps feature a copper impeller with an ODP motor. Use on biodiesel.

Model 81 1/4B3-E.33 1P is designed for applications requiring high volume, low pressure, sump or liquid transfer. The copper allow semi-open impeller handles solids to 5/16" diameter. Built-in Flap/Check valve enables consistent self-priming to 20 ft. biodiesel


  • Cast iron construction with copper alloy impeller
  • 1-1/4" NPT suction and discharge ports
  • 1/3 HP ODP motor with 8 ft. 115 vac power cord
  • Includes float switch and strainer
  • Built-in flap valve
  • Maximum suction lift is 20 feet
  • Maximum operating pressure is 26 PSI
  • Maximum temperature is 160F
  • Viton mechanical seal

See Curve "B"

Self-Priming Utility Pumps

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