1. Measure the roundness and cylindricity of the cylinder of the water ring vacuum pump, determine the boring cylinder or replace according to the degree of wear;
2, cylinder roundness and cylindricity should comply with the relevant provisions;
3, the cylinder surface should be no cracks, blisters, scars, grooves and other defects, the surface roughness is 1.6;
4, cylinder water jacket is not allowed to crack or leakage and other defects;
5, the water hammer ring vacuum pump cylinder diameter should not exceed 2% of the original size, cylinder wall thickness is not more than 1/12 of the original wall thickness.
Correct maintenance of water ring vacuum pump cylinder will be more conducive to the use of pumps, but also to extend its service life. At the same time, check the vacuum pump cylinder, pay attention to all aspects, such as surface, diameter, etc., need to check.
Water ring vacuum pump is a kind of crude vacuum pump, it can get 2000 ~ limit vacuum, in vacuum pump unit vacuum reaches 1 ~ 600pA. Water ring pump can also be used as a compressor, called water ring compressor, a low-pressure compressor, 1 ~ 2 * 105Pa gauge pressure range. Any machine after a long period of time, there will be some glitches, so it is necessary to master some solutions.