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liquid ring vacuum pump type

Shanghai EVP professional vacuum pump manufacturer for the majority of users to provide professional vacuum pump: liquid ring vacuum pump, 2SK liquid ring vacuum pump, 2BE liquid ring vacuum pump, 2BV liquid ring vacuum pump and other vacuum pump maintenance and sales.


The type of  liquid ring vacuum pump is mainly determined by the gas volume, vacuum degree or exhaust pressure required by the work.

2SK Liquid Ring Vacuum Pump.jpg

2SK Liquid Ring Vacuum Pump


When working on the  liquid ring vacuum pump, we should pay attention to the following two aspects:


1. As far as possible, it is required to operate in the high efficiency area, that is, in the critical vacuum or critical exhaust pressure area.


2. avoid running near the maximum vacuum or maximum exhaust pressure. The operation in this area is not only inefficient but also unstable. It is prone to vibration and noise. For vacuum pumps with high vacuum, cavitation often occurs when they operate in this area. The obvious sign of this phenomenon is that there is noise and vibration in the pump. Cavitation can cause damage to parts such as pump body and impeller, so that the vacuum pump can not work.


If the vacuum pump is used only, the single acting pump is better. Because the single-acting pump is simple in structure, easy to manufacture and maintain, and has good cavitation resistance in high vacuum. If the compressor is used only for a more atmospheric compressor, the double acting pump is more suitable. Because the double-acting pump has large air volume, small volume and light weight, the radial force can be automatically balanced, the shaft is not easy to produce fatigue fracture, and the service life of the pump is longer.


Shanghai EVP professional and technical team experts summarized for you  liquid ring vacuum pump selection common sense can be selected according to the system required air volume  liquid ring vacuum pump. After preliminary selection of the type of  liquid ring vacuum pump, the type of  liquid ring vacuum pump should also be selected according to the volume of air required by the system.


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