QJ series submersible pumps includng QJ deep well (borehole) submersible pumps, QJH stainless steel submersible pumps , QJT bottom-suction submersible pumps and QJR hot water submersible pumps . These series of submersiable pumps are mainly used in drawing water from well , river, sea and lake, farmland/spray irrigaion, aquaculture, water supply or drainage system for cities, industrial and mine establishements, drawing water from hot spring, fountain projects and so on.
Use Conditions:
1. The three-phase power supply voltage deviation does not exceed ±5% and the frequency deviation is not more than ±1%;
2. Motor cavity must be filled fullly with clean water during operation.
3. The first stage impeller of the pump shall be immersed at least 2 meters below the dynamic water level. The pump unit shall not be more than 70 meters below the static water level. The bottom of the motor shall not be less than 3 meters from the bottom of the well.
4. Ensure the source…