0.7hp / 550w / 8 stage / 4 Inch Three Phase Bore Pump

This deep well submersible pump is suitable for a bore casing larger than 97mm in diameter as the pump diameter including the cable guard is 97mm. You would need to allow a few millimeters on either side of the pump for water to flow past the pump motor. It can also be used with a 5" or 6 " 150mm bore casing. If it is to be used in a 5 " or 6 " bore casing, it is recommended that you shroud the pump. This helps keep the motor cool. The 4S70-08 is best suited to bores varying from 19m deep to 51 m deep. The Motor coupling flange and discharge head are made in Stainless steel (AISI 304). Incorporated non-return check valve. (Always install a non-return check valve in the line as well). Floating type impellors in noryl, diffusers in non toxic polycarbonate shell, pump shaft, coupling, cable shield, suction screen, external shell and all screws are in stainless steel. The pump flanges for coupling with motors are made according to NEMA standards.

Coverco deep well submersible motors are mostly utilised to drive borehole submersible pumps. Coverco motors are excellent in applications where low motor starting is required, so operating your bore pump with a generator is possible using a Coverco motor. Solar systems also require a low motor starting current, so the Coverco motors can work as a solar powered bore pump operation.
3-wire motors from Coverco are oil filled with 304 grade stainless steel body with brass heads with a robust mechanical seal of silicon carbide material.
Usually the submersible motors are installed vertically. However, the submersible motors may be installed horizontally. Rewind ability is assured by a design which enables the easy dismantling and assembly of the motors.
Coverco Motor Specification Standards:

• 0.37kw to 7.5kw
• 4" NEMA Flange
• Protection: IP68
• Starts per hour: 30
• Installation: vertical / horizontal (approval needed)
• Voltage tolerance: ± 10%
• Single Phase: PSC type
• Motor Protection: Select thermal overloads according to DIN 60947-4-1, trip class 10 or 10A, trip time < 10s. at 5 x 1N
• Insulation: Class F
• Radiant ambient temperature: 30° C
• Cooling Flow: min. 8cm/sec
• Water pH: between 6.5 and 11.0
• Max Sand content: 150 g/m3
• Max Submerged Depth: 300m
• Flat cable with incorporated earth
• Direction of rotation: Single Phase CCW / Three Phase: CCW and CW