Product overview
QJ series submersible pumps are widely used in farm irrigation, sprinkler irrigation, well use, water supply and drainage system for industrial and civil building, water diversion project in hilly and mountain areas water drainage project in at low-lyi ng areas, water supply and drainage in urban and rural's mining enterprises and various other kinds of water conservancy facilities. Its features are that the Motor and pump are assembled into a whole, so that it is simple in structure, convenient to assemble and disassemble easy to use and maintain, and safe to operate. Otherwise, it covers a small area and does not pollute water.
Structure feature
Pump: The pump is installed on the upper part of the pump units.It's centrifugal and has water lubricated bearing mounted with the motor shaft by a joint.
There is a check valve on top of the pump which could prevent rapaid inverse rotation from backword flow.The pump unit should be immersed below the dynamic water lever when in using.
Motor:
The motor is installed under the pump.
It is a water filled in hermatical structure.The stator windings are water-tight and PE insulating and multi-layers are covered with nylon.
The motor bearing is water-lubricated.The inner motor contains clean water to cool the water body and the bearing.
The rubber diaphgram adjusts the pressure change caused when temperature rises.
There is a sand resistance system in the upper part of the motor.
