A water ring compressor is a common machine that is used to compress gas for the purpose of increasing pressure and reducing gas volume. It is possible to compress all kinds of gases and vapours. It can tolerate contaminants as well, which makes it suitable to be used in hash environmental conditions. Also used as pump, this rotating positive displacement compressor and vacuum pump has a compact structure, simple operations, low operating temperature, noise and vibration. The pump can produce relatively high absolute vacuum. Water ring compressor finds use in many industrial applications, from manufacturing textile to producing pharmaceutical products.