Detailed Product Description

WORKING PRINCIPLE
QDX type submersible motor pump is mainly composed by three parts: pump, mechanical seal and motor. Pump is at the bottom part of motor pump, which adopt centrifugal impeller. Motor is at the upper part of motor pump and is a single-phase asynchronous motor or three-phase motor. Mechanical seal is between pump and motor, and it`s a  kind of double end mechanical seal, "O" rings 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: Cast iron
Motor body: Aluminium
Impeller: Cast iron/Aluminium
Mechanical seal: Stainless steel/Carbon-ceramic
Shaft: 45#steel or stainless iron
Bearing: SKF/NTN/NSK/China
Insulation class: B/F
Protection class: IP68