Corrison resistant submersible borehole pump for sea water , mining
water , hydropower station dam
Submersible deep well water well pumps Appliance :
1. QJ 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
5. Water temperature should be no more than 20°C.
6. Sand content of the water ( by mass) should be no more than
7. PH value of water 6.5-8.5.
8. Hydrogen sulfide content of the water should be no more than
9. Chloride ion content of the water should be no more than
10. Water yield of water source should ensure the requirements of
pump continuous working
2. QJ Deep well bronze hot water well pump tech parameter :
a) Caliber: DN150-DN400mm
c) Head:10-1000 m
d) Rotate speed:1450-2850r/min
e) Motor power:0.55-400 KW
f) Working temperature: ≤20°C
3, Main features
a) Submersible motor adapts YQS type water-filled wet structure,
internal chamber was filled with water for cooling the motor and
lubricating the bearing.
b) For preventing the sand getting into the motor, the
sand-preventing unit including sand slinger and skeleton oil-sealed
was installed in the upper part of motor, the whole motor was
c) There are water injection hole and exhaust hole in the upper
part of the motor and discharge hole in the lower part.
d) There are thrust bearing and thrust collar, mainly for
sustaining remnant axial force of pump and the empty weight of
e) The winding of motor stator adopts water-proof electromagnetic
wire with good insulating and water-proof functions and rotor
adopts squirrel-cage structure.
|Size||5" 6" 7" 8" 10" 12" 14"|
|Head Range||Flow Range||Motor Power||Outlets range|