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Oberdorfer 121 Series Helical Rotor Pump

Pump Body: All Bronze or Corrosion Resistant Aluminum Construction
Ports: 3/4" NPT
Flow: 8.5 GPM Max
Pressure: 100 PSI Max
Stator / Rotor: Buna Stator and Stainless Steel Rotor
Shaft Seal: Carbon Face Mechanical Seal
Motor / Drive: Designed for Pulley Drive Applications We can supply motors and assemble if required.


The turning of the helical shaped rotor within the stationary stator creates a progressing cavity similar to a moving piston. Liquid is thus displaced generating a pumping action. Unlike piston pumping, extremely high pressure cannot be created because the stator is made of Buna N and is flexible. Because of this flexibility contaminated liquids can be handled. Close fit of the rotor within the stator permits lifting of liquid on the suction side as high as 20 ft.

  Item Number Description Price   Qty       Order    
OB 121
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Discontinued Helical Rotor Pump
Click For Individual Product Page   21.5

Lead Time:  Discontinued.
$0.00 Discontinued  
OB 121B
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Click for a Datasheet
Oberdorfer- Helical Rotor Pump, Pedestal Mount, Bronze, 3/4"NPT Ports
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Estimated Shipping Weight:  26 Lbs Each.
Manufacturer:  Genuine Oberdorfer, new.
HS/HTS Tariff Commodity Code:  (for reference)  8413600090.

Lead Time:  Ships Immediately, 7 In Stock.
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