SP7



GRUNDFOS SP pumps are designed for a wide range of uses with a particular application to borehole supply. They are of multistage centrifugal impeller design and all parts are made from stainless steel with water lubricated rubber bearings. A submersible motor is fitted beneath the pump and suction is effected through a strainer between the pump and motor.

Standard pumps are designed 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 7.5kW and above. Note that due to low starting torques of submersible motors direct on low starting is recommended for all motor sizing.

Enclosure Class:IP58
Insulation Class: F
Speed: 2900rpm

OPERATING CONDITION
Pumped Liquid: Thin, clean, chemically non-aggressive liquids without solid.
Max. Liquid Temperature: +40°C
Max. Water Depth: Up to 2.2kW 3ph -150m and 3kW to 7.5kW 3ph - 600m
Min. Borehole Diameter: 110mm

PUMP DATA

Pump Type Motor Diameter Motor Full Load Current (A) Start Current (A) Dimensions (mm) Weight (kg)
kW HP A B C D E
SP 7-17

4"

2.2 3.0 5.5 26 1545 457 1088

95

101   

27
SP 7-23 3.0 4.0 7.9 35 1885 497 1388 35
SP 7-31 4.0 5.5 9.7 58 2365 577 1788 44
SP 7-42 5.5 7.5 13 82 3105 677 2428 55
SP 7-59 7.5 10.0 18.8 118 3965 777 3188 79

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