SIHI Pumps is one of the world leaders in liquid ring vacuum pumps, liquid ring compressor technology and liquid pumps for use with hot thermal fluids, refrigerants, and low NPSH applications. Additionally, we manufacture the only completely dry running vacuum pumps in the market and have the ability to package all of these pumps and provide them factory tested, ready for installation. This single source responsibility provides for complete comfort that the job will be done right the first time.