Cast iron submersible wastewater pump
WQ DeTech Pumps Company Ltd.

WQ pump

Application
The 'WQ' pump are suitable for clear and waste water, also for sewage and sludge containing solids and fibrous material.

The pump suitabe for wet installtion and vertical dry installation thanks to cooling jacket design.

Motor
Three phase, squirrel cage motor.
Voltage: 400v or others, 3ph, 50 / 60 Hz
Insulation class F = 155oC, Protection grade IP68
Max. medium temperature in continous operation: +40oC

Motor protection
Each phase of stator is connected with temperature switch. This can protect motor against overheat.
Also leakage sensor is employed in oil chamber and junction box.
And sensor for bearing overheat is equipped.

Mechanical seal
All pump equipped with two mechanical seal.

Impeller
With semi-open or closed channel impeller, it can pump large solids. And it is well balance checked.

Materials
Motor casing --- GG25
Volute --- GG25
Impeller --- GG25
Rotor shaft --- SS420
Nuts & Bolts --- SS304
Mechanical seal: -- Upper : WuC/WuC
Lower: SiC/SiC