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PUMP
GRUNDFOS SP submersible pumps are designed specifically for borehole supply applications. They are of multi-stage centrifugal
gal impeller design and all parts are made from stainless steel with water-lubricated rubber bearings. A submersible motor is
fitted beneath the pump and suc on is effected through a strainer between the pump and motor. Standard pumps are de-signed for the pumping of non-aggressive water. ‘N and R’ versions are available for applications requiring a higher degree of corrosion resistance. All SP pumps carry a drinking water approval and meet European Minimum Efficiency Index guidelines.

MOTOR
Pumps are coupled to sealed canned-type liquid-cooled 2-pole asynchronous GRUNDFOS motors constructed of stainless
steel. Motors require remote controllers, the DAYLIFF electronic controller, which provides full control against fluctuating
power input as well as wireless low level control being recommended for smaller motors and the GRUNDFOS MP204, which
provides additional protection from mechanical failure as well as advanced monitoring features for motors of 7.SkW and above. Note that due to the low star ng torques of submersible
motors Direct-on-Line star ng is recommended fora II motor sizes.
Enclosure Class: IP55  Insulation on Class: B  Speed: 2900rpm

OPERATING CONDITIONS
Pumped liquids: Thin, clean, chemically non-aggressive liquids without solid particles or fibres ..
Max. Liquid Temperature: + 40°C Min.
Borehole Diameter: 110mm {4″ motor}, 152mm {6″ motor}

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