Oberdorfer 111B Discontinued Helical Rotor Pump Head
Product Details Page:
All Bronze or Corrosion Resistant Aluminum Construction
8.5 GPM Max
100 PSI Max
Stator / Rotor:
Buna Stator and Stainless Steel Rotor
Carbon Face Mechanical Seal
Motor / Drive:
This pump is supplied close coupled to gasoline engine or as a pump alone complete with attaching parts and instructions for mounting. Any 2 or 4 cycle gasoline engine having a standard S.A.E. 4 bolt mounting flange and 5/8 inch shaft diameter with keyslot can be used. An engine rating of at least 2.2 horsepower at 3600 R.P.M. is necessary as only about one-half of rated power is available at the recommended pump speed of 2100 R.P.M. We can supply additional motors and assemble if required.
APPLICATIONS / CHARACTERISTICS
BRONZE OR ALUMINUM CLOSE COUPLED HELICAL ROTOR PUMP
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.
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