APPLICATIONS
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.
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.
CONSTRUCTION FEATURES OF THE MOTOR
Submersible type continuous duty asynchronous motor. Stator enclosed in airtight casing made of AISI 304 stainless steel and covered by an outer protection
that protects the wiring and the capacitor. Rotor running on ball bearings, oversized to ensure low noise and durability.
The single-phase version has built-in thermal-amperometric protection and permanently connected capacitor. For the protection of the three-phase
motor, we recommend the use of remote overload cut-outs, in compliance with current local regulations. Construction according to CEI 2-3 and CEI
61-69 (EN 60335-2-41).
Motor protection class: IP 68
Insulation class: F
Standard voltages: Single-phase 220/240 V - 50 Hz. / Three-phase 400 V - 50 Hz.
Standard cables:
20 m cable type H07 RN-F; single-phase version complete with SCHUKO CEE 7-VII-UNEL 47166-68 plug.
The single-phase version can be supplied with or without float switches for automatic operation.