Vertical Electric Cast Iron Submersible Storm Sewer Pump

vertical electric cast iron submersible storm sewer pump

Pump introduction

WQ series submersible storm sewer pump is mainly used for municipal works, industrial buildings, hotels, hospitals, civil air defence, mines etc trades to drain off the sewage, storm water, wastewater, rainwater and living water in cities containing solid grains and various long fabrics.

Pump structure

Bearing

Imported SKF of NTN bearing which, with reasonable configuration can extend the duration of the pump.

Cooling system

The built-in cooling system can have the pump normally work whether the motor is on or under the liquid surface. 

A part of the liquid is extracted to bring out the beat produced by the motor from the pump circulation to the cooling barrel and to the pump casing and, when external cooling is required. The cooling sleeve may be separated from the pump casing, individually connected to the cool system Motor

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

 Mechanical seal

Use Bogman mechanical seal of Germany, two ways of the seal are in series with each other and individually work to separate the motor from the pump seal to provide the motor with a dual protection 

shaft

The pump is co-axial with the motor and the sealing device on the end of the shaft prevents against contacting with the medium to protect is from corrosion 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-etrol switches, which are in the state of N. O. at the normal temperature and opened when the temperature on the stator gets to I25℃

A water-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 chamber reaches a certain concentration, to automatically cut off the power to stophe work of the pump Serviceman should replace the oil timely and check the mechanical seal on the pump side and replace it is necessary All the wiring box of the motor with a power not lower than 3o W is mounted with a leakage probe to check leak with the cable seal.

Float switch

The float switch will give a warning signal to the indicator lights. when leakage occurs on the mechanical seal on the motor side, the liquid goes into the switch room and reaches a certain height, to stop the pump. Serviceman should check the mechanical seal and replace it if necessary. 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.

Pump specification

Application field