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Gorman‑Rupp O Series® PTO Self‑Priming Pump

  • Power Take‑Off (PTO) gear‑reducer for mounting on truck frames, perfect for fuel/water transfer vehicles
  • Handles clean liquids (petroleum fuels, solvents, water), with no check valve for improved suction
  • Compact, rugged, lightweight design, 4-position offset shaft for flexible alignment
  • Helical gears ensure quiet operation; available in left- or right-hand rotation
Feature Specification
Brand Gorman‑Rupp
Sizes 2″, 3″, 4″, 6″, 8″
Max Flow 1,200 GPM (76 L/s)
Max Head 460 ft (140 m)
Max Solids 1–19/100″ (30 mm)
Temperature Up to 160 °F (71 °C)
Materials Aluminum, ductile iron casing; brass/bronze impeller
Impeller Type Enclosed, high-efficiency
Gearbox PTO Helical for quiet; 4 shaft positions; optional DC/hydraulic drive
Rotation Left or right available
Seal Mechanical, Viton® standard; optional Teflon or double seals

The Gorman‑Rupp O Series® PTO Self‑Priming Pump is engineered for clean liquid transfer applications such as aircraft fueling, fuel oil delivery, gasoline handling, and water wagon operations. Its straight-in suction design omits check valves, eliminating inlet restrictions and enhancing vacuum performance during priming.

Constructed with an aluminum or ductile iron casing, the pump features a high-efficiency enclosed impeller, a bronze replaceable wear ring, and self-lubricated gears that guarantee exceptionally quiet and reliable operation. With a PTO gearbox offering up to 4 : 1 speed increase, the O Series PTO can be adapted for DC or hydraulic motor drive when PTO connection is not available.

Available in sizes from 2″ to 8″, it delivers flows up to 1,200 GPM (76 L/s) and heads up to 460 ft (140 m), handling solids up to 30 mm. The pump is rated for operation up to 160 °F (71 °C). It can be saddle-mounted on vehicles with four shaft positions for optimal alignment.

SK Tech is the authorized distributor of Gorman‑Rupp pumps in Vietnam, offering full product lines, sizing support, and professional after-sales service.

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