PULSAR pumps, which are very silent running, can be installed inside boreholes and sumps and eliminates all potential problems of suction and unpriming.
Multi-stage close-coupled borehole pump with hydraulic section below motor, which is cooled by the pumped liquid. -Impellers, diffusers, strainer and oil sump in abrasion-proof thermoplastic. Outer liner, stator sleeve, upper head with delivery connection and closing ring in AISI 304 stainless steel. Rotor shaft extension in AISI 304. Elastomers in NBR. Stainless steel screws. Double mechanical seal with interposed oil chamber, made of ceramic/carbon on motor side and silicon carbide/silicon carbide on pump side. Submersible with continuous duty asynchronous motor. Rotor running on ball bearings, oversized to ensure low noise and durability Built-in thermal and current overload protection and a capacitor permanently on in the single-phase version. To protect the three-phase motor use remote overload cut-outs in compliance with statutory regulations. Constructed in compliance with CEI 2-3 and CEI 61-69 (EN 60335-2-41) standards.
Operating range: from 0.9 to 7.2 m3/h with head up to 86 metres. Maximum permissible sand quantity: 50 g/m3 Motor protection level: IP 68 Insulation class: F Liquid temperature range: From 0° C to +40° C Standard cables: 20 m HO7 RN F cable type. Cable complete with SCHUKO plug EEC 7-VII-UNEL 47166-68 for the single-phase version. Single-phase versions can be equipped with or without float switches for automatic operation.
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