SP ELECTRIC CENTRIFUGAL SUBMERGED PUMPS WITH WATER COOLING

Submerged centrifugal electropump with water bath motor, for the pouring of abrasive fluids such as slips with the possibility of continuous operation. The choice of the water bath motor is optimal in order to operate submerged in hot fluids, where there is also a sedimentation problem and therefore there is the difficulty to transfer the heat to the surrounding environment. The motor is built from Certech according to IE2 high performance standards. The water bath motor is supplied with a water freezing station that recirculates inside the motor and that keeps controlled the temperature of the coil, directly placed at contact with the water. This water ensures the lubrication of the graphite bushings realized according to our drawing for the axial and radial loadings. The axial loadings are at charge of a thrust bearing. The mechanical seal in Widia is of simple type, with 2 rings, with free body for the passage of water and stainless steel springs.

It is foreseen the insertion of an axial crusher to the impeller that is able to move the product near the impeller, making easier the priming in case of sedimentation. The suction is from the bottom and the delivery is lateral. The passage of the solid parts in suspension is allowed up to 15 mm diameter. Special executions on request: motor at 60 Hz, board with inverter.

Optional

  • 1) Automatic system of pressure, fluxing water flow control and seal cooling.
  • 2) Automatic system of fluxing water control and closed circuit seal cooling.

Performances with WATER

Type Installed power Kw RPM Delivery m 3 /h 20 40 60 80 100
l/min 330 660 1000 1330 1660
SP154-A 15 1450 Head metres H2O 34  33,5  32,5 31,4  28,5

Performances with SLIP 1.7 kg/lt

Type Installed power (Kw) RPM Delivery m 3 /h 20 40 60 80 100
l/min 330 660 1000 1330 1660
SP154-B 15 1450 Head metres H2O 29  28,5 27,5 26,5  24,8