Product Description

Applications and Features
With advantage of simple structure, high efficiency, low noise, safe and reliable operation, easy installation and maintenance. It is suitable for water extraction from deep wells, geothermal wells and oceans, it can also be used for rivers, reservoirs, canals and other extraction; mainly used for irrigation and livestock water mountain plateau, and also for the drainage from cities, factories, railways, mines, construction sites.
QJ deep-well submersible pumps Executive Standard: GB / T********2

Environmental conditions
1. Power frequency *0Hz, rated voltage **0v or **0v (tolerance ± 5%) of the three-phase AC power.
2.Solid content (by mass) is not more than 0.*1%.
3. The PH value of pumped liquid between 6.**8.5.
4. The temperature of transmission medium does not exceed **0 ℃.
5. The pump inlet must below 1m of the moving water level, but submersible length not more than *0m of the static water level, the depth between pump bottom and well bottom at least 1m.
6. Requires well integrity, wall smooth, well pipes shall not stagger.

Structural features
1.QJ series wells submersible pumps, with two major components of submersible three-phase asynchronous motors and pump parts. The electric motor connected to upper part of pump directly, the motor shaft end is set with a reliable seal, effectively prevent the exchange between the cooling fluid within the electric motor and the pumped medium, to ensure safe and reliable long-term operation of the pump.
2. This submersible pumps is single-suction multi-stage vertical centrifugal pump; the submersible motors is water-filling wet, vertical wells with submersible asynchronous motor. The motor and pump are direct connection through drum coupling set.
3. The motor windings are polyethylene waterproof nylon jacket magnet wire. Motor cavity can be filled with clean water.
4. Motor guide bearings are water lubricated type. There is thrust bearings at lower part of the motor to withstand the vertical axial forces of pump, the thrust bearing for high head pump are nickel-containing copper segments, and the other grinding part is imported Rockefeller Perth skateboarding, to withstand axial force of pump .
5. There is additional axial force carrier in the middle of the motor and pump, head can be lifted to **0m.