Circulation pump for hot or cold water with in-line connectors, particularly versatile thanks to the use of the HYDRODRIVER, it offers performance features that can automatically adapt to the various system requirements whilst keeping differential pressures constant. Pump body and motor support in cast iron. Cast iron impeller for all models from CME 65 to CME 150; in technopolymer for models from CM 40 to CM 50. Flanged suction and delivery connections in PN 16 with threaded holes for control pressure gauges. Mechanical seal in carbon/ceramic. Closed, asynchronous motor with external ventilation. Rotor mounted on oversized ball bearings to ensure silent running and long life. Built to IEC 2-3 standards.
Adjustment unit directly mounted on the electric pump that, by using the signal of the standard differential transducer, already connected and ready to use, modulates the speed of rotation in order to keep the differential pressure of the system on which it is constant used.
The HYDRODRIVER uses an integrated microprocessor that can work with the recent IGBT technology which offers higher levels of reliability and flexibility. The high frequency impulse width modulation procedure makes the motor work very silently, ensuring elevated starting torque with a current increase programmed and calibrated by the maker. The device also guarantees gradual acceleration and deceleration ramps (softstart) thereby preventing hammering effects. It protects the motor it is mounted on with numerous protection systems against overloads, missing phases, overvoltage and undervoltage with automatic 5-try reset feature.