Calpeda Close-coupled centrifugal pumps with open impeller - C

Applications

For moderately dirty liquids or emulsions.

For industry and agriculture.

Operating conditions

Liquid temperature from -10 °C to +90 °C.

Ambient temperature up to 40° C.

Total suction lift up to 8 m.

Maximum permissible working pressure: 6 bar.

Maximum size of solids: 4 mm.

Continuous duty.

Motor

2-pole induction motor, 50 Hz (n ≈ 2900 rpm).

C: three-phase             230/400 V ± 10%.

CM: single-phase 230 V ± 10%, with thermal protector.

Capacitor inside the terminal box.

Insulation class F.

Protection IP54

Motor suitable for operation with frequency converter from 1,1 kW.

IE2 efficiency class for single-phase motors.

IE3 efficiency class for three-phase motors (IE2 up to 0,65 kW).

- Constructed in accordance with EN 60034-1; EN 60034-30-1.

                                                EN 60335-1, EN 60335-2-41.

Special features on request

Other voltages.

Frequency 60 Hz (as per 60 Hz data sheet).

IP protection: IP55

Special mechanical seal

Motor suitable for operation with frequency converter up to 0,75 kW.

Design with support.

Higher or lower liquid or ambient temperatures.

Cooling mixtures with temperatures from 0 to -30°C.

Water with the temperature from 90° to 140°C.

Oil with temperature up to 200°C and/or max density 30 cSt

Designation

Example: B-CM 20/A

B = no indication: the pump is in the Cast Iron version

C = Series

M = Single-phase version (no indication: three-phase)

/A = It refers to a revision

The electropumps comply with the European Regulation no. 547/2012.

Components                                                        C                                   BC

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Pump casing                                                       Cast iron GJL 200 EN 1561           Bronze CC480K EN 1982

Lantern bracket                                                   Cast iron GJL 200 EN 1561           Bronze CC480K EN 1982

Impeller                                                             Brass CW617N EN 12167               Brass CW617N EN 12167

Shaft                                                                Stainless Steel 1.4104 EN 10088      Stainless Steel 1.4401 EN 10088

                                                                       (AISI 430F)                                    (AISI 316)

                                                                          AISI 303 Cr-Ni steel for C 41E

Mechanical seal                                                   Carbon - Ceramic - NBR              Carbon - Ceramic - NBR