Liquid Ring Vacuum Pumps

Liquid ring vacuum pumps and compressors are rotary machines. They operate according to the positive displacement principle. In these machines, a liquid is made to act as a piston. The liquid is generally water for most of the applications and hence they are also known as water ring water piston or liquid piston rotary pumps and compressors. Information about construction, working, operation and maintenance of liquid ring vacuum pumps is given in this article.