Calpeda Submersible borehole pumps - Sdp

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

Operating conditions
PUMP
Liquid temperature:
           up to a 35 °C for 4" motors
           up to 30 °C for 6" motors.
Maximum amount of sand in the water:
           150 g/m3 for 4SDP and 300 g/m3 for 6SDP.
           - 300 g/m3 high percentage of solids and sand.
Continuous duty.

Designation
Example: 4SDPM 6/14 - 6SDP 52/3A 4SM
4 = Ø of the well in inches
SDP = Series
M = Single-phase (without three-phase indication)
6 = Stage identification
14 = Number of impellers
4SM = Motor flange coupling

The electropumps 4SDP 1,2,3,6 series comply with the European Regulation no. 547/2012.

Motor
2-pole induction motor, 50 Hz (n ≈ 2900 rpm).
Sized for connection to the pumps according to NEMA Standards.
Standard voltages:
single-phase         - single-phase 230 V up to 2,2 kW for 4" motors.
three-phase         - three-phase 230 V; 400 V, for 4" motors.
                             - three-phase 400 V; 400/690 V, for 6" motors.
Voltage tolerance : ± 10%
In order to limit both current and torque at each starting, for rated motor powers equal to or higher than 7.5 kW, one of the following types of starting is necessary: star/delta, soft starter, stator impedance or autotransformer.
Insulation class: F for motors 4"
Protection IP 68.
Continuous duty.
Motor suitable operation with frequency converter (with suitable filter dv/dt).

Special features on request
Other voltages.
Frequency 60 Hz (as per 60 Hz data sheet).
High temperatures.
Encapsulated motor FK series.