Qj Well Submersible Pump

product overview:
qj submersible pumps are widely used in agriculture irrigation,sprinkler irrigation, well water lifting and water supply, drain system of industrial and civil building, as well as the hill, mountain areas water diversion, drainage of low-lying area, water supply, drainage of industrial and mining enterprises in urban and rural area and all the other water facilities.
using condition:
1. 380v voltage deviation is no more than +-5%,frequency is 50hz,three -phase power deviation is no more than +-1%.
2. motor cavity must be filled with water.
3.the first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level.
4.the distance from the motor bottom to well bottom must be more than 3m.
5.water temperature should be no more than 20 degree.
6.sand content of the water ( by mass) should be no more than 0.01%.
7.ph value of water 6.5-8.5.
8.hydrogen sulfide content of the water should be no more than 1.5mg/l.
9.chloride ion content of the water should be no more than 400mg/l.
10.water yield of water source should ensure the requirements of pump continuous working.