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Main Application and Characteristic

QXG type submersible feed pump, whose flow capacity is from 200 to 4000 m3/h, whose head is from 6.5 to 60m and whose power is from 11 to 250kW, is used to pump the similar liquids in physical and chemical properties ( the temperature of pumped liquid is less than 40℃). And the pump is suitable for the water supply and drainage in city, factory, mines and power station and irrigation in farms etc.

Brief Introduction of Structure

Based on the importation and absorption of the foreign advanced technology, this series submersible feed pump has a reasonable structure and outstanding performance. The operation model of squirrel motor is SI, the insulation class of state is F (155℃), each phase is equipped with the overheat and overload protective component. The perfecting designs of motor state cooling--- jacket cooling system. Self-circulating cooling can be achieved through high-pressure and low-pressure pipes. For the feed pump with power less than 15 kW, this kind of cooling system isn't furnished. Seal Monitoring In the oil chamber between the motor and the pump cover is filled the lubricant oil as the protective area. The sealing monitoring is carried out by the sensor. If the leakage of water occurs, it can give the warning. With the outstanding design of hydraulic part and high energy-saving efficiency, the pump is suitable for the transportation of liquid in various fields. The unique design of cable seal eliminates the leakage of water of cable. High quality lubricant bearing (imported SKF bearing) can guarantee the no-accident operation. The stainless steel is used for the motor shaft. The dynamic balance test is adopted for the state, so the operation is very smooth. Three layers series type mechanical seal whose material is carbon wolfram / carbon silicon (carbon wolfram / carbon wolfram) can guarantee the long term smooth operation of the pump.

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