Self-Priming Centrifugal Pumps Type A
With open impeller

Construction
Close-coupled centrifugal pumps with open impeller. The built-in backflow preventer avoids reverse siphoning when the pump is stopped and assures automatic re-priming at the next start.The pump re-primes itself even if partially filled with liquid and with completely empty suction pipe.

Applications
For clean or slightly dirty water, also with solids up to 10 mm grain size for A50-125 and 15 mm for A65-150. For draining a basin or a sump. For irrigation.
For civil and industrial applications.

Operating conditions
Liquid temperature from -10 °C to +90 °C.
Room temperature up to 40 °C.
Maximum permissible working pressure up to 6 bar.
Continuous duty.

Motor
2-pole induction motor, 50 Hz (n = 2900 1/min).
A : three-phase 230/400 V ±10%.
AM : single-phase 230 V ±10%, with thermal protector.
Capacitor inside the terminal box.
Insulation class F.
Protection IP54
Constructed in accordance with IEC60034.

Special features on request
Other voltages.
Frequency 60 Hz (as per 60 Hz data sheet).
Protection IP55.
Special mechanical seal.
Higher or lower liquid or ambient temperatures.
Explosion proof construction in accordance with
Directive 94/9 EEC (ATEX).
Construction with bearing bracket.