Type OSZ

Qmax=155m3/h – Hmax=87m 

APPLICATION

OSZ pumps are typically applied for open cast mine and deep mine dewatering.They are also applicable in any other case when submersible pumps of medium capacity and head are required to pump contaminated water. OSZ pumps are typically applied for open cast mine and deep mine dewatering.They are also applicable in any other case when submersible pumps of medium capacity and head are required to pump contaminated water.

DESIGN

Multi-stage, vertical, submersible centrifugal pumps with closed impellers and vane diffusers. Water inlet is located around the perimeter between then pump and the motor while the delivery flange is directed horizontally at the upper part of the pump.

The roller bearings are installed in oil chambers sealed by mechanical seals. Thus the presence of abrasive solids in the pumped fluid does not affect the bearing operation. The upper bearing absorbs the axial thrust.

The pump is driven by dry type submersible motor located under the pump. The power from electric motor is transmitted via a flexible coupling. The motor has own roller bearings. The pump set is equipped with the monitoring system including bearings and motor windings temperature sensors as well as water presence sensors in the oil chambers and in the motor.

MATERIALS OF CONSTRUCTION

Impellers, diffusers, casings are made of cast iron or stainless cast steel.