Pentair Onga 150 – Self Priming Cast Iron Pump

Pentair Onga 150 – Self Priming Cast Iron Pump

Onga 150 Pump Construction Materials
Component Material
Pump casing Cast iron
Baffle 20% Glass Filled Polycarbonate
Priming cap Acetyl
Impeller 20% Glass Filled Polycarbonate
Diffuser 20% Glass Filled modified Polyphenylene Oxide
Shaft sleeve Acetyl
Seal flexible bellows Elastomer EPDM
Seal stationary face Ceramic
Seal rotating face Carbon
Seal spring 304 Stainless Steel
Motor shaft Mild Steel
O’Rings Nitrile


Pentair Onga 150 (15 Series)

15 Series: Cast Iron Centrifugal Water Transfer Pumps

Experience unmatched durability with the Onga 150 cast iron water transfer pump. This centrifugal pump is perfect for heavy-duty water transfer needs, providing efficient performance even in tough conditions.


  • Rugged Cast Iron Build: Engineered with a solid cast iron external structure ensuring long-lasting strength and reliability.
  • Advanced Impeller Design: Equipped with an open impeller featuring an integrated check valve for superior self-priming capabilities.
  • Soft Solid Handling: Efficiently manages soft solids, preventing any clogs.
  • Optimal Performance Metrics: Delivers a maximum head of 18m and a flow rate of up to 375lpm.


  • Ideal for domestic, industrial, and rural water transfer.
  • Efficiently handles grey water during sump emptying tasks.
  • Perfect for effluent transfer operations.

Technical Specifications:

  • Pump Configuration: Surface-mounted, single-stage, horizontal centrifugal pump with an open impeller.
  • Motor: 2 pole, Totally Enclosed Fan Cooled (TEFC) motor. Comes with external thermal overload protection. (Note: Single phase units are standard; three-phase units necessitate a separate quick trip overload with an electrical contactor.)

Operating Guidelines:

  • Water Type: Designed to pump clean, grey, and effluent water.
  • Temperature Restrictions:
    • Water: Up to 70°C
    • Ambient: Maximum of 55°C

Below is a PDF showing more about the different models of this pump. Click on the arrows above the brochure to change pages.


Have a question or want a price on this pump? Be sure to contact us! We are happy to assist you.

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