4SR

4" submersible borehole pumps

The new 4SR-S series floating impeller pumps, with their advanced hydraulic design and patented innovations, deliver outstanding performance and efficiency. They are exceptionally resistant to sand-related wear, offering a durability 10 times higher than other global market pumps! The new 4SR-S pumps feature a patented inductor that improves priming capabilities in wells with air/water mix or water containing gasses.

Flow rate up to 350 l/min (21 m3/h)
Head up up to 576 m
Liquid temperature up to +35 °C
Maximus sand content – 200 g/m3 for 4SR-S
– 150 g/m3 for 4SR-N
Maximum operating depth below water level – 200 m with 4PD motors
– 300 m with 4PS motors
Motor 2 poles
Ingress protection rating IP 68
Delivery port Stainless steel AISI 304
Pump sleeve Stainless steel AISI 304
Impellers Derlin® (for 4SR-S)
Noryl™(for 4SR-N)
Diffusers NorylTM
Shaft Stainless steel AISI 304
Motor bracket Stainless steel AISI 304

Technical documentation