Self-Priming Centrifugal Pumps Brand Calpeda

Calpeda A Series Self-Priming Centrifugal Pumps with open impelle.

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.
A: version with pump casing and lanter bracket in cast iron.

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 for A 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;
Insulation class F.
Protection IP 54
Constructed in accordance with: EN 60034-1; 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.