S4 4” Submersible borehole pump 

Submersible electric pumps for 4” wells or larger, capable of generating a wide range of flows and heads. These units have a very extensive range of applications for lifting, distribution, and pressurization in civil and industrial water systems, filling of pressure vessels and tanks, fire-fighting systems and washing of irrigation systems.

Performance Range

• Long service life
• Operating range: from 0.3 to 24 m3/h.
• Maximum head: up to 320 metres.
• Pumped liquid: clean, free of solids and abrasives, chemically neutral, with properties similar to water.
• Liquid temperature range: from 0 °C to +40 °C.
• Maximum permitted amount of sand: 120 g/m3. 300 gr/m3
• Installation: in 4” wells or larger, tanks and cisterns, vertical position.
• Starts/hour: max 20.
• Cooling flow: 8 cm/s.
• Special executions on request: alternative voltages and/or frequencies.
• On request, the single-phase version can be supplied with CONTROL BOX BOOSTER for the increase of the starting torque.

Construction 

• Multistage centrifugal type with radial or semi-axial impellers
• Pump and motor directly coupled with rigid coupling
• Technopolymer impellers with stainless steel wearing parts
• Pump liner, shaft and coupling in stainless steel
• Submersible asynchronous two-pole motor made of AISI 304 stainless steel.
• Flanging: NEMA-4”
• Protection class IP 68
• Insulation class: F
• Both single phase and three phase 

6 months warranty on hydraulic parts