Electric Submersible Sump Pump Submersible Sludge Pump For Wastewater Treatment Plants

Electric Submersible Sump Pump Submersible Sludge Pump For Wastewater Treatment Plants

Product Working Conditions

1.The medium temperature should not be over 40℃, the density1050kg/m,and the PH value within 5-9.
2.During running,the pump must not be lower than the lowest liquid level,see"Vlowest liquid level".
3.Rated voltage 380V,rated frequency 50Hz.The motor can run successfully only under the condition the deviations of both rated voltage and frequency are not over ±5%.
4.The maximum diameter of the solid grain going through the pump has not to be larger than 50% of that ofthe pump outlet.

Product Specifications

e.g. 50WQC15-8-0.75
50------Drain aperture(mm)
WQ------Submersible sewage pump
C------Third generation structure
15------Capacity(m3/h)
8------Head (m)
0.75------Power of fitted motor(kw)

Product Structures

Bearing: High-quality roll bearing,which, with a reasonable configuration,can oxtend the duration ofthe pump.

Cooling: Cooling ofthe pump:direct cooling by means ofthe pump to pump the medium

Motor: F class insulation, max. working temperatures 155℃, and of a protective grade IPX8 with the effective seal.

Mechanical seal: Use high-quality mechanical seal, two ways of the seal provide the motor with a dual protection.

Oil chamber: Oil can lubricate and cool the mechanical seal and realize the attached function of safety by preventing liquid from penetrating into the motor. The air of a certain amount left indide of the chamber can lower the pressure accumulatively raised.

Impeller: The optimized design leaves the pump a powerful capacity in fiber and solid drainage and non-blocking in the liquid transportaation

Pump casing: Use of CAD/CAM know-how makes the pump an enhanced efficacy and a reduced wear.

Shaft:
The pump is coaxial with the motor
The as short as possible designed stretched rotating shaft can be reduced with its deflection and vibration, extend the duration of both mechanical seal and bearing and lower the noise at running.

Monitor system:
Inside of the stator there are three inlaid series heat control switches, which are in the state of "N.O." at the normal temperature and opened when the temperature on the stator gets toll5° er-leakage probe is mounted inside the oil chamber to check water leakage and it will give a warning signal(the indicator lights), when the mechanical seal on the pump side leaks and the oil-water ratio in the oil chamder reaches a certain concentration, to automatically cut off the power to stop the work of the pump.
The function to check if the motor lack of phase is available with the electric control cabinet so as to prevent it from burning due any lack of phase.