CME CONSTANT DIFFERENTIAL PRESSURE CENTRIFUGAL CIRCULATION PUMPS
Circulation pump for hot or cold water with in-line connectors, suitable for direct
installation to pipes in civil and industrial heating, conditioning, cooling and dome-
stic water systems. 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 con-
trol 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
Protected to: IP 55
Insulation class: F
Standard voltage: single-phase 208-240 V / 50-60 Hz
three-phase 380-480 V / 50-60 Hz
Adjustment unit directly mounted on the electric pump that, by using the signal of
the standard differential transducer, already connected and ready to use, modu-
lates the speed of rotation in order to keep the differential pressure of the system
on which it is constant used.
he 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 program-
med and calibrated by the maker.
The device also guarantees gradual acceleration and deceleration ramps (soft-
start) thereby preventing hammering effects. It protects the motor it is mounted
on with numerous protection systems against overloads, missing phases, over-
voltage and undervoltage with automatic 5-try reset feature.
Supplied standard with:
- remote control terminals (start/stop)
- economy function adjustment terminals
- terminals for powering a remote alarm (potential-free)
- Status LED’s
- adjustment knob for easy calibration of the required set-point.
- Class B integrated radio frequency disturbance filter (EN 55022 level B1)
- integrated ventilation device (from 2.2 kW to 7.5 kW)
Remote control feature through RS 485 serial interface and USS protocol.
Operating range: from 1.5 to 270 m3/h with a head up to 21 metres.
Pumped liquid: clean, without solid or abrasive substances, not viscous, not
aggressive, not crystallised and chemically neutral, close to water characteristics.
Liquid temperature range: from -15°C to +120°C
Maximum ambient temperature: +40°C
Maximum operating pressure: 16 bar (1600 kPa)
Flanging: PN 16