Leo 4SR8-18 / 3KW Submersible Borehole Pump Only

The LEO 4SR8-18 is a 4-inch (100 mm) stainless steel submersible borehole pump end from the 4SR8 series, with 18 stages and a 3.0 kW rating. The 4SR8 hydraulics are sized for a nominal 8 m³/h with an operating range of 4.8 - 12 m³/h (80 - 200 l/min); the high stage count gives the head needed for deep boreholes and long pipe runs. This is the pump end only: it couples to a standard 4" NEMA submersible motor of 3.0 kW, sold separately.

The 4SR range uses an AISI304 stainless steel outer casing, shaft and motor bracket, with floating Noryl® impellers (FDA-approved material) that tolerate small amounts of sand. A built-in AISI304 check valve and inlet strainer protect the pump and the rising main. Typical uses are farm and game-farm water supply, irrigation, livestock watering, domestic and estate borehole systems, and mining and building-site water supply.

Specifications

• Model: 4SR8-18 (pump end only)
• Stages: 18
• Motor required: 3.0 kW, 4" NEMA submersible motor (single-phase 220-240V up to 2.2 kW, or three-phase 380-415V)
• Nominal flow: 8 m³/h; range 4.8 - 12 m³/h (80 - 200 l/min)
• Borehole: minimum 100 mm (4") internal diameter
• Materials: AISI304 casing, shaft, bracket and check valve; Noryl® floating impellers
• Maximum fluid temperature: 35 °C
• Maximum sand content: 0.25%
• Frequency: 50 Hz

Applications

• Borehole water supply for farms, estates and homes
• Irrigation and livestock watering
• Mining and building-industry water supply
• Water transfer to reservoirs and elevated tanks

Complete Specifications, Sizing and Price Guide Click Here.