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 pressurisation in civil and industrial water systems, filling of pressure vessels and tanks, fire-fighting systems and
washing of irrigation systems.
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 (only for S4F)
Installation: in 4” wells or larger, tanks and cisterns, vertical position.
Starts/hour: max 20.
Cooling flow: 8 cm/s.
Special executions on requests: 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 FEATURES OF THE PUMP
Multistage centrifugal type with radial or semi-axial impellers. Pump and motor directly coupled with rigid coupling. Technopolymer impellers with stainless steel wearing parts, fitted on floating clearance rings made of synthetic low abrasion material, and technopolymer diffusers that impart significant wear resistance to the pump. Pump liner, shaft and coupling, strainer and cable sheath in stainless steel. Base support and upper head in microcast AISI 304 stainless steel; check valve incorporated in the head. The pumps comply with the European Community Directives.