Calpeda A 50 125B/A close coupled centrifugal pump 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.
This version with pump casing and lantern bracket in cast iron.
Applications Calpeda A 50 125B/A :
- 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
- draining a basin or a sump
- For irrigation
- civil and industrial applications
Operating Conditions :
- Liquid temperature from -10 deg. C to +90 deg. C
- Room temperature up to 40 deg. C
- Maximum permissible working pressure up to 6 bar
- Continuous duty
Motor :
- 2 pole induction motor, 50 Hz (n = 2900 rpm)
- 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
Materials :
| Pump casing Suction flange Inspection cover Lantern bracket Impeller | Cast iron |
| Shaft | Chrome nickel steel |
| Mechanical seal | Carbon – Ceramic – NBR |
Special Features on Request :
- other voltages
- Frequency 60 Hz
- Protection IP 55
- Special mechanical seal
- Higher or lower liquid or ambient temperatures
- Construction with bearing bracket
Performance specification :
| Model | A 50-125B/A |
| Voltages | 230 V 4.7 A 400 V 2.7 A |
| Maximum power input (P1) | 1.6 kW |
| Rated motor power output (P2) | 1.1 kW 1.5 HP |
| Capacity | 6 m³/h 100 l/min ; Head 15,5 m 9 m³/h 150 l/min ; Head 14,9 m 12 m³/h 200 l/min ; Head 14,2 m 15 m³/h 250 l/min ; Head 12,9 m 18 m³/h 300 l/min ; Head 11,6 m 21 m³/h 350 l/min ; Head 10 m 24 m³/h 400 l/min ; Head 8,3 m 27 m³/h 450 l/min ; Head 6,2 m 30 m³/h 500 l/min ; Head 4 m |
| Input | 2 Inch |
| Output | 2 Inch |
