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Pump: BWSP 77 submersible pumps are designed specifically for borehole applications. They are of multi-stage centrifugal impeller
design. All parts are made from stainless steel (AISI 304) that ensures high corrosive resistance. This pump carries drinking water
approvals. Standard pumps are designed for the pumping of non-aggressive water. An ‘SP 2N’ version is available for applications
requiring a higher degree of corrosion resistance. Pump has sand shield and water-lubricated rubber bearings. Suc on is through a
strainer between the pump and motor.


MOTOR: The pump is coupled to a sealed, liquid-cooled 2-pole asynchronous squirrel-cage SS motor constructed of stainless steel. The
motor is fi ed beneath the pump. Both single-phase and three-phase motors require a DOL control panel starter. If unstable power supply is likely, additional quick tripping control relays are recommended.
Enclosure Class: IP68

OPERATING CONDITIONS
Speed: 2900 rpm
Pumped Liquid: Thin, clean, chemically non-aggressive liquids without solid par cles or fibres.
Max Liquid Temperature: +40 degrees C.
Max Water Depth: Up to 300 m
Minimum Borehole Diameter: 200mm

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