Companion Traders

(PLASTIC IMPELLERS & DIFFUSERS)

C.R.I. 3" Silver line series submersible pumpsets are built with impellers & diffusers made of thermo plastics and other vital components like check valve housing and suction inter connector are made of graded cast iron, outer shell made of high quality stainless steel. The optimal design of impellers and diffusers offers best possible hydraulic efficiency. Can be fitted only with C.R.I. Water filled rewindable submersible motors.

3" - W SERIES MOTORS

These motors are Eco-friendly wet type, water filled and rewindable. The stator windings are of waterproof synthetic film insulated copper winding wires. All the rotating parts of these motors are dynamically balanced to maintain uniform clearance, better efficiency & better life cycle. Specially designed high performance thrust bearings are used to withstand axial thrust loads and upthrust loads with minimum wear & tear.  Pressure equalizing rubber diaphragm is provided to maintain the internal pressure of the motor. Sealings are made by means of ?O? rings, shaft seals and sand guard to avoid ingress of well water, sand and fiber particle into the motor. It features water lubricated thrust and journal bearings. Motor is pre filled with clear, cold, pure, fresh filtered water. However, on request  motors  can be pre-filled with water and propylene glycol (Anti-freeze agent) for places where the temperature is below the freezing conditions. Before commissioning ensure the pre-filled level of water inside the motor. If any loss of volume is noticed refill with clear, cold, pure, fresh, filtered water. Refilling can be done through water filling plugs/valve provided in the upper housing. It is mandatory to install C.R.I. Control box for all single phase 3 wire motors.

Pumped Liquids

Clean, thin, non aggressive, non explosive, clear, cold, fresh water without abrasives, Solid particles of fiber. Clear cold water means water having the following characteristics.