Submersible water well pump 

Submersible water well pump overview:
QJ series submersible water well pumps advantages are an optimized design, solid structure, low running noise, a long running life, small size, light weight, easy to install and maintain, energy saving characteristics, steady in operation, and minimal pollution. Application; for deep well water, farm irrigation, sprinkler irrigation, urban and rural industries as well as mine supply and drainage.

Submersible water well pump feature:
1. Motors and pumps assembled into one.
2. Simple structure.
3. Easy installation and removal, compact.
4. Simple use and maintenance.
5. Safe and reliable operation, no pollution to water.

Submersible water well pump working condition:
1、Power: 50-60 Hz frequency and voltage of 380-420 volts (allowing deviations +5% -10%) of the three-phase AC power.
2、Motor cavity must be filled with clean water 
3、The first stage impeller of the pump should be below the moving water surface no less than 3 m, pump unit should be below the static water level less than 70m.
4、The distance from the motor bottom to well bottom must be more than 3m
5、The water temperature no more than 20° C ,the QJR hot water submersible pump temperature can reach 80° C
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