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CSM850
CSM850 CSM850 CSM850 CSM850
Onga Submersible Sump Available to Order

CSM850

The Onga CSM850 is a submersible drainage pump designed for residential, rural, commercial and industrial water systems. For these installations, it helps provide dependable water movement and efficient system performance through robust cast-iron construction.
Max Head 17 m
Max Flow 885 lpm
Warranty 1-year
Enquire About This Pump
🔧 NZ-based technical support 📄 Trade pricing on request 🕐 Quotes typically same day

Applications

  • Dairy pit drainage
  • Raw sewage disposal
  • Low-pressure sewage
  • Greywater

Key Features

  • 32 mm free passage
  • Semi-open cutter impeller
  • Auto cut out switch
  • Moisture sealed cable inlet

Downloads

CSM850 Technical Data Sheet PDF CSM850 Product Flyer PDF CSM850 Manual PDF CSM850 Spare Parts PDF

Technical specifications

View full specification table
Brand Pentair Sta-rite
Model CSM850
Equipment Category Cast Iron Cutter Submersible Drainage Pump
Free Passage 35mm free passage
Max Head 17 m
Max Flow 885 lpm
Pump Casing Cast iron
Impeller Cast iron with tungsten cutting blade
Motor Shaft 403SS
Mechanical Seal Carbon ceramic mechanical seal with oil chamber and primary lip seal
IP Rating IP68
Warranty 1 year

Frequently asked questions

What is the Onga CSM850 used for?
The Onga CSM850 is a rugged cast-iron submersible cutter pump for dewatering, drainage, water treatment and wastewater applications. It is particularly suited to dairy pit drainage, raw sewage, low-pressure sewage, greywater and water containing stringy material.
What makes the CSM850 suitable for stringy wastewater?
The CSM850 has a semi-open cutter impeller and 32 mm free passage, allowing it to handle water where stringy materials may be present.
Can the CSM850 pump sewage and greywater?
Yes. The CSM850 is suitable for raw sewage disposal, low-pressure sewage and greywater applications where the pump is correctly selected and installed.
Does the CSM850 have overload protection?
Yes. It features a dry motor design with automatic thermal overload protection and a mechanical overload switch with automatic cut-out.

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