Self-Priming Centrifugal Pump with open impeller

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.
A: version with pump casing and lanter bracket in cast iron.
B-A: version with pump casing and lanter bracket in bronze
(the pumps are supplied fully painted).

Applications
For clean or slightly dirty water, also with solids up to 10 mm grain size for A 40, A 50 and 15 mm for A 65, A 80. 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 (10 bar forA 80-170).
Continuous duty.

Motor
2-pole induction motor, 50 Hz (n = 2900 rpm).
A three-phase 230/400 V ± 10% up to 3 kW;
400/690 V ± 10% from 4 to 7,5 kW;
AM: single-phase 230 V ± 10%, with thermal protector.
Capacitor inside the terminal box. Insulation class F. Protection IP 54.
Classification scheme IE2 for three-phase motors from 0,75 kW.
Constructed in accordance with: EN 60034-1; EN 60034-30.
EN 60335-1, EN 60335-2-41.

Special features on request
Other voltages. Frequency 60 Hz (as per 60 Hz data sheet). Protection IP 55. 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.