QJ type deep-well pump is mainly composed by three parts: pump mechanical seals and motor. Pump is the upper part of motor pump, which consists by stator and rotator, Motor is at the lower part of motor pump and is a single-phase or three-phase anynchronous motor, Mechanical seals is between pump and motor and it is a kind of double end mechanical seal??ings are applied in all static joints of the submersible pump. Inner-installed protector prevents the pump from damages due to abnormal power, clog and overload etc
MATERIAL AND WORKING LIMITS
Pump body: Stainless steel/Cast iron
Impeller: Cast iron / nylon
Mechanical seal: Stainless steel
Shaft: 45#steel or stainless iron
Bearing: SKF/NTN/NSK/China
Insulation class: F
Protection class: IP68

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