Centrifugal Pump Calpeda CM20E
Construction
- Close-coupled centrifugal pumps with open impeller.
- Free-flow impeller (vortex or recessed impeller) for type C 16/1E.
- C= version with pump casing and lantern bracket in cast iron.
- BC= version with pump casing and lantern bracket in bronze.
- The pumps are supplied fully painted.
Applications Centrifugal Pump Calpeda CM20E
- For moderately dirty liquids or emulsions.
- For industry and agriculture.
Operating conditions
- Liquid temperature from -10deg.c. to +90deg.c.
- Ambient temperature up to 40deg.c.
- Total suction lift up to 8 m.
- Maximum permissible working pressure: 6 bar.
- Maximum size of solids: 4 mm.
- Continuous duty.(S3 60% for C(M) 22E-CM 22/1E).
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.
- Single-phase motors with efficiency class IE2 (except for CM 22E, CM 22/1E)
- IE3 efficiency class for three-phase motors (IE 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.
- Higher or lower liquid or ambient temperatures.
- Motor suitable for operation with frequency converter up to 0,75 kW.
- Design with support.
Designation
- Example: B-CM 20/A
- B= Bronze version (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