Leo 4SR16-15 / 4KW Submersible Borehole Pump Only » Buy online now for only R 5,998.93 incl. VAT

The LEO 4SR16-15 is a robust submersible borehole pump engineered for reliable water supply, irrigation, and air conditioning circulation systems. This single-impeller centrifugal pump delivers exceptional performance with flow rates up to 220 m3/h and head capabilities reaching 85 meters, making it an ideal choice for deep well applications and demanding transfer operations. Built to handle clean, chemically non-aggressive liquids across a wide temperature range, the 4SR16-15 combines proven LEO engineering with dependable, long-lasting operation in diverse industrial and agricultural settings.

Constructed with premium materials including an AISI304 stainless steel impeller paired with cast iron (HT200) components, this submersible pump features a sealed, externally ventilated motor with IP54 protection and F-class insulation for enhanced durability in challenging environments. Its innovative rear-entry design allows technicians to extract the impeller, control valve, and motor without disconnecting the pump body from pipework, significantly reducing maintenance downtime. Equipped with a DIN 24960-compliant mechanical seal lubricated by internal recirculating liquid and capable of handling fluid temperatures from -10 degC to 65 degC (expandable upon request), the 4SR16-15 delivers the reliability professionals demand for continuous water circulation, bore hole supply, and irrigation projects.

Application

• Circulation and transfer of clean, chemically non-aggressive water and other liquids
• Water supply & irrigation
• Water circulation in air conditioning systems

Operating Conditions

• Delivery: up to 220 m3/h
• Head: up to 85 m
• Liquid temperature: Standard: -10 degC to 65 degC, Upon request: -20 degC to 120 degC
• Maximum operating pressure: 12 bar (PN12)
• Anti-clockwise rotation when facing pump's suction port
• Impeller: AISI304/HT200
• Mechanical seal in compliance with DIN 24960
• Lubricated by internal recirculating pumped liquid
• Counter flange available on request

Motor

• Closed construction, external ventilation
• Insulation class: F
• Protection class: IP54
• Performance in compliance with CEI 2-3 (IEC 34.1)
• Max. ambient temperature: +40 degC
• Overload protection

Construction Features

• Single-impeller centrifugal pump featuring axial intake and radial discharge
• Inlet and outlet DN in compliance with EN 733 (ex DIN 24255) and UNI 7467
• Flanges in compliance with UNI 2236 and DIN 2532
• Rear entry (impeller, control valve and motor can be extracted without disconnecting the pump body from the pipes)

Accessories On Request

• Galvanised iron threaded counter flanges
• Flanged tapered coupling
• Pump and motor sealing gasket

Identification Codes

• XST - Standard Centrifugal Pump
• m - Single Phase (m is omitted for three-phase)
• 32 - Outlet Diameter (mm)
• 125 - Impeller Nominal Diameter (mm)
• 11 - Rated Power (1/10 kW)