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What is an oil ring vacuum pump? What are its characteristics?

What is an oil ring vacuum pump

The oil ring vacuum pump is designed on the principle of liquid-sealed pistons. Its construction principle is different from the general oil-sealed type that uses sliding vanes. When the sliding vane vacuum pump is running, the vanes will constantly rub against the cylinder and the groove of the rotor. Good circulation oil lubrication is required. When the extracted gas contains moisture, the lubrication effect of the circulation oil will be destroyed, causing serious damage to the oil-sealed vacuum pump.

When the oil ring vacuum pump is running, there is no friction contact surface of the internal parts, so there is no problem of poor lubrication effect. Its internal circulating oil is not used as lubrication, but as a sealing mechanism gap and is used as a liquid piston to interact with the eccentrically rotating compound impeller to achieve the effect of vacuum extraction.
Therefore, when the pump contains a large amount of water vapor, it will not affect its life, so the service life is much longer than that of the general oil seal sliding vane.


Characteristics of oil ring vacuum pump

  • Integrating the fuel tank/heat dissipation/control system in the same body, simplifying the on-site installation project.
  • The automatic control system has protections for overheating of the pump, overloading of the motor, and overhigh oil level.
  • The service life of the machine is long, and the service life of circulating oil under normal use conditions is more than twice that of other types of vacuum pumps.
  • Completely sealed pipeline design, clean operation, will not pollute the environment.
  • Built-in high-efficiency oil mist filter, which can filter 99.9% of exhaust oil mist
  • The suction port is equipped with a special check valve for vacuum and is attached with a stainless steel filter. When the pump stops, the pump and the system can be isolated to avoid the backflow of vacuum oil.
  • The large detachable oil sight window is convenient for checking the oil level and cleaning inside the circulating oil tank.


Main purpose

Vacuum forming, medical vacuum system, vacuum hot press, vacuum vulcanization hot press, vacuum drying, vacuum degassing, vacuum impregnation, adsorption processing, multi-purpose decompression source.



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