Shanghai Weihu(WEL) Pump Co., Ltd

QJ Deep Well Submersible Pump Overview:<br />
QJ series submersible pump is widely used in various kinds of water conservancy facilities such as farm irrigation, sprinkler irrigation with water, industrial and supply and drainage system of civil building, draining water in hills or mountainous area, diversion in low-lying areas, urban and rural industrial and mining enterprises water supply, drainage, etc.<br />
Its motor and water pump assembly into one, with simple structure, convenient installation remove, cover an area small, easy to use and maintain, safe and reliable operation, no water pollute, etc.<br />
QJ Deep Well Submersible Pump Applicable scope:<br />
the three phase power which voltage 380 V, deviation no more than 5%, frequency 50 HZ ac, deviation no more than 1%.<br />
motor lumen must be filled with the clean water.<br />
the first level of pump impeller should be put into the dynamic water level at least 2 m, the electric pumping unit in the following static water level must not be more than 70 m from the bottom, the motor shall no less than 3 m from the well bottom.<br />
water temperature is not higher than 20 ℃, QJR type hot water submersible pump temperature can reach to 80℃.<br />
sand content of water (according to the quality) no more than 0.01%.<br />
the PH of the water is among 6.5-8.5.<br />
the water content of hydrogen sulfide is no more than 1.5 mg/L.<br />
the content of chlorine ion in the water is not more than 400 mg/L<br />
water yield shall ensure the need of the water pumping continuous operation .<br />
QJ Deep Well Submersible Pump Structure feature and work principle<br />
 QJ deep welll submersible pump is a combination of motor and pump. It works under water. It can draw water in an efficient and energy saving way. It is composed of submersible motor, water pump, lifting pipe, etc. It uses vertical water filling wet squirrel cage three-phase asynchronous motor. It is filled with clean water inside to cool the motor and lubricate the bearing. Its motor winding uses polyethylene insulation nylon sleeve and water-resistant magnet wire. The top part of the motor is sealed with deflector and framework oil, preventing medium leakage inside and outside the motor. The pump is vertical type, with single stage/multistage closed centrifugal impeller. Its discharge bowel delivers liquids.