5' multistage submersible pump
PULSAR electric pumps are utilised for lifting clear water from boreholes, first water collection tanks or cisterns, wells or water courses, and are capable of distributing pressurised water to domestic installations, small agricultural plants, and sprinkler systems for lawns and vegetable gardens. The pump has a very silent operation, and can be installed inside boreholes and tanks, thus avoiding all the potential problems connected with suction and unpriming.
Operating range: from 0,9 to 7,2 m3/h with head up to 86 metres.
Pumped liquid: clean, free of solids and abrasives, non-aggressive.
Max percentage of sand in water: 50 g/m3.
Liquid temperature range: from 0 °C to +40 °C.
Maximum immersion depth: 20 metres.
Motor protection class: IP 68.
Motor protection rating: F.
Installation: fixed or portable, vertical or horizontal position.
Operation: manual or automatic (continuous duty with totally submerged pump).
Discharge port diameter: 1”1/4 GAS.
Pump maximum diameter: 138 mm.
CONSTRUCTION FEATURES OF THE PUMP
Multistage monobloc submersible pump with hydraulic section below the motor, which is cooled by the pumped liquid. Impellers, diffusers, strainer and oil sump in abrasion-proof thermoplastic material. Outer liner, stator sleeve, upper head with delivery connection and closing ring in AISI 304 stainless
steel. Upper and lower bearing support in pressed anti dezincification brass. Rotor shaft extension in AISI 304 stainless steel. Elastomers in NBR. Stainless steel screws. Double mechanical seal with interposed oil chamber, in ceramic/carbon on the motor side, and silicon carbide/silicon carbide on the pump side. The seal system adopted ensures watertight sealing of the motor and good performance of the mechanical seal even in the event of short term dry operation.