Profile: Sihi Pumps, Inc. assembles liquid ring vacuum pumps, liquid ring compressors, dry vacuum pumps and liquid pumps. We provide complete packages for vacuum, gas compression and liquid applications. We concentrate in liquid pump technology which delivers a range of specialty liquid pumps for hot thermal fluids, refrigerant liquids or low NPSH applications. Our sihidry is based on dry screw-spindle principle. Our sihidry features include counter rotating screw shaped rotors, rotate without contact and self-draining.