What are the vacuum pump maintenance methods?

China Vacuum Pump Trading Network

It is often observed whether the readings of various instruments are normal, especially if the speed and shaft power are stable.

Regularly pressurizing the packing, such as packing wear, does not guarantee that the seal should be replaced in time. The packing should not be pressed too tightly. Under normal circumstances, the water leaked out from the stuffing box should be in the form of fine water column or drop. The water injected into the stuffing box should be sufficient, and the water supply pressure is 0.5~1kgf/cm2.

The bearing temperature must not be 30 °C higher than the ambient temperature, and the absolute value of the temperature is not higher than 60 °C. Press the ZG-4 calcium-based grease into the roller bearing chamber to fill 2/3 of the bearing chamber space. Normally working bearings should be filled 3 to 4 times a year, and at least one bearing should be cleaned once a year to replace all grease.

Pay attention to the supply condition of the water ring replenishing water. The temperature of the water flowing out of the pump should not exceed 40 °C.

After the pump has been in operation for one year, it should be completely disassembled to check the wear and corrosion of the parts. However, the length of the inspection period may be determined on a case-by-case basis.

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Mechanical pumps may be submerged in the fluid they are pumping or be placed external to the fluid. 

Pumps can be classified by their method of displacement into positive displacement pumpsimpulse pumpsvelocity pumpsgravity pumpssteam pumps and valveless pumps. There are two basic types of pumps: positive displacement and centrifugal. Although axial-flow pumps are frequently classified as a separate type, they have essentially the same operating principles as centrifugal pumps. 

QFAP has specialize in producing pump housings more than 5years.

Materials: Ductile iron, Grey iron, Aluminum 

Surface treatment: Painting, Powder coating, only oiled

Main of our customers is from German, USA, and CAN. 

With the long terms of experience in the pump industry, we could supply the pump housings or help to design the housings according to your requirements. 


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