Calpeda Submersible borehole Pump

Calpeda SD, SDF, SDN Series Submersible borehole Pump

Construction

Submersible borehole pumps for 4” wells (DN 100 mm), and 6” (DN 150 mm), with external jacket in stainless steel
AISI 304 and stages in polycarbonate for 4SD pumps and in noryl for 4SDF, 6SD, 6SDN pumps.

Applications

For water supply.
For civil and industrial applications.
For fire fighting applications.
For irrigation.

Operating conditions

Liquid temperature: 
- up to a 35 °C for 4” motors
- up to a 25 °C for 6-8-10” motors.
Max. sand quantity
Continuous duty.

Rewindable motor CS series

2-pole induction motor, 50 Hz (n = 2900 rpm).
Sized for connection to the pumps according to NEMA Standards.
Standard voltages:
- single-phase 230 V up to 2,2 kW for 4” motors.
- three-phase 230 V; 400 V, for 4” motors.
- three-phase 400 V; 400/690 V, for 6” motors.
Voltage tolerance : +6% / -10%.
In order to limit both current and torque at each starting, for rated motor powers equal to or higher than 7.5kW, one of the following types of starting is necessary: star/delta, soft starter, stator impedance or autotransformer. 

Special features on request

- Other voltages. 
- 60 Hz frequency.
- Other temperatures.
- Encapsulated motor FK series