Pedrollo 4SR2-S submersible pumps are specifically designed for water supply from boreholes, though can also be used in other applications in either vertical or horizontal configurations. They feature an upgraded specification with a revised floating impeller hydraulic design and advanced high wear resistance materials for the impellers and diffusers. This provides exceptional sand handling capability (up to 200g/m³) and improved operating efficiency. Pump impellers are made from high-strength Delrin technopolymer, diffusers from Noryl and the stage casings, top housing, suction interconnector, pump sleeve and shaft from AISI304 stainless steel.

Pumps are coupled to Pedrollo 4PD two pole sealed oil filled motor constructed principally from AISI 316 stainless steel. Drytek control box is available for both single phase and three phase pump control which incorporates incoming mains isolator, digital display of motor operating status and protection against over and under voltage, motor overload and phase sequence loss. The controller can be connected directly to the mains power supply.

Enclosure Class : IP68
Insulation Class: F
Speed: 2900rpm

Pumped Liquid: Thin, clean, chemically non aggressive liquids with a maximum sand content of 200gm/m³.
Max. Liquid Temperature:+35° C.
Min. Borehole Diameter:110mm
Max. Immersion Depth:200m


Model Motor Current (A) DN(") Dimensions (mm) Weight (kg)
kW HP 1x240V 3x415V H1 H2
4SR2/9-S 0.55 0.75 5   11/4 343 331 11
4SR2/12-S 0.75 1 6   402 356 13
4SR2/17-S 1.1 1.5 8 3 528 396 16
4SR2/23-S 1.5 2 10 5 647 437 19
4SR2/33-S 2.2 3 15 6 873 492 26
4SR2/44-S 3 4   7 1163 450 28
4SR2/58-S 4 5.5   9 1432 505 34