QDX submersible pump (hereinafter referred to as electric pump) consists of water pump, seal and motor. The electric pump is equipped with a protection device, and the motor is located on the upper part of the electric pump and is a single-phase or three-phase asynchronous motor. The water pump is located at the lower part of the motor and has a centrifugal impeller and volute structure. The mechanical seal with double ends is adopted between the water pump and the motor, and the O-shaped oil-resistant rubber sealing ring is used as the static seal at each fixed stop. Because of its small size and light weight, this series of electric pumps are especially suitable for underground pumping, farmland irrigation and drainage, garden irrigation and domestic water use in vast rural areas, and can also be used for removing industrial stagnant water, water supply and drainage in construction and aquaculture.

It is mainly used for pressurized water supply in the pipeline of fire fighting system. It can also be applied to industrial and urban water supply and drainage, high-rise building pressurized water supply, long-distance water supply, heating, bathroom, boiler cold and warm water circulation pressurization, air conditioning and refrigeration system and equipment matching and other occasions.

The electric pump is equipped with a protection device, and the motor is located on the upper part of the electric pump and is a single-phase or three-phase asynchronous motor. The water pump is located at the lower part of the motor and has a centrifugal impeller and volute structure. The mechanical seal between the water pump and the motor is double-ended, and the O-shaped oil-resistant rubber sealing ring is used as the static seal at each fixed stop. Because of its small size and light weight, this series of electric pumps are especially suitable for underground pumping, farmland irrigation and drainage, garden irrigation and domestic water use in vast rural areas, and can also be used for removing industrial stagnant water, water supply and drainage in construction and aquaculture.

The peripheral impeller of the pump contains many radial blades at its edge. The centrifugal motion caused by the water flow through the impeller is ejected outward. Then the water rotates with the impeller to generate high pressure. These pumps are compact and economical. They have different appearances and motor housings to meet different operating requirements.

It is supported by double-ended ball bearings, the front end is lubricated with lubricating oil, the rear end is lubricated with lubricating grease, and there is an oil guide tube in the middle, which can observe the sealing situation and recover heat transfer oil. Generally, packing seal and mechanical seal are combined. High temperature resistant filler for packing sealing has good thermal adaptability; The mechanical seal adopts cemented carbide material with high mechanical strength and good wear resistance to ensure the sealing performance at high temperature.

Pipeline pressurization: cyclic pressurization of workshop and central air conditioning. Drainage in industrial cities: for urban buildings and industrial drainage. Bathroom hot and cold water circulation: hot and cold water circulation in bathrooms such as hotels and restaurants. HVAC refrigeration cycle: all kinds of HVAC refrigeration cycle facilities are matched. High-rise pressurized water supply: pressurized water supply for high-rise buildings in residential areas and buildings