Leo 4SR8-21 / 3.7KW Submersible Borehole Pump Only » Buy online now for only R 4,050.45 incl. VAT

The LEO 4SR8-21 is a 4-inch submersible borehole pump engineered for reliable water extraction in diverse industrial and agricultural applications. Built to excel in mining, construction, aquaculture, food and beverage production, and residential water supply systems, this pump combines robust engineering with FDA-approved materials to deliver consistent performance in demanding environments.

Constructed with a durable AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR8-21 features American Noryl® impellers renowned for strength and longevity, along with an integrated AISI304 check valve and built-in strainer for added protection. Its high-quality hydraulic design handles flow rates from 1 to 10 m3/h with single-phase (0.37-2.2 kW) or three-phase (0.75-7.5 kW) motor options, making it ideal for both small-scale and larger industrial borehole installations where reliability and corrosion resistance are paramount.

Application

• 4" SR series submersible pump adopts AISI304 casing and high-strength and durable "floating impeller"
• Impellers are made of American "Noryl®" material, which has got the approval of FDA(American Food and Drug Administration)
• With high-quality hydraulic design, AISI304 motor base up to "NEMA" standard, built-in AISI304 check valve, gasket, motorund outlet and built-in strainer
• Can be widely applied to mining and building industry, agriculture, aquaculture, food and beverage industry and family water supply

Motor And Pump

• Power: Single phase: 0.37~2.2KW 220~240V
• Power: Three phase: 0.75~7.5KW 380~415V
• Insulation class: B
• Protection grade: IP68
• Frequency: 50HZ
• Flow range: 1~10 (m3/h)
• Maximum fluid temperature: 35
• Maximum sand content: 0.25%