Design

Self-priming monobloc centrifugal pumps with open impeller.  The anti-back suction device integrated in the absorbent bell prevents the back suction effect when stopped and ensures that it is re-suctioned every time it is turned on.  The pump is self-priming even if it is
partially filled with rarity and the suction pipe is completely empty.
Bronze pumps are supplied fully painted.  with suspended solids up to diameters: - 10 mm for pumps A 40, A 50 - 15 mm for pumps A 65, A 80. For draining bathtubs or ditches.  For watering.  For use in domestic and industrial areas.

Operating restrictions

Fluid temperature from -10 to +90°C.  40°C.
Final pressure in the pump housing: 6 bar (10 bar for pumps A 80-170) 
Continuous operation.

electric motor

Induction motor, 2-pole, 50 Hz, 2900 rpm. 
A: three-phase up to 3 kW - 230/400 V (± 10%);
from 4 to 7.5 kW - 400/690 V (± 10%). 
AM: 230V mono phase (±10%) with thermal protector.  The capacitor is built into the terminal box.
Class "F" insulation.
Protective device IP 54.
Device in accordance with IEC 60034.

Special executions on request

- other voltages
- frequency 60 Hz (see catalog for frequency 60 Hz)
- with protection device IP 55
- special mech.  seal
- for media with higher or lower temperatures
- version with explosion-proof motor according to Directive 94/9/CE (ATEX)
- version with base

Component AB-A Pump casing Suction 
flange  Inspection
cover (for mod. A65-A80)
Connecting part 
Impeller Bronze G-Cu Sn 10 EN 1982

Shaft Chrome steel 1.4305 EN 10088 (AISI 30 40

Filter cover Cast iron GJL 200 EN 1561

Bronze G-Cu Sn 10 EN 1982

Fur.  sealCharcoal-ceramic-NBR

download the entire  calpeda             catalog download catalog A 

download manual A                           download spare parts A

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Self-priming centrifugal pumps with an open impeller A