Products Address: http://www.gdnashvacuum.com/product/showproduct.php?lang=cn&id=113 SKA water ring vacuum pump is one of the most basic, access equipment, vacuum technology. It provides a reliable vacuum source for a variety of laboratory products include vacuum freeze-drying systems, electronic industry and education in the field of scientific research which requires vacuum operation. SKA water ring vacuum pump has a simple structure and easy maintenance. Using water instead of a piston ring, in addition to this general type of gas and water vapor pumping of the pump to be pumped explosive and corrosive gases. Therefore, it can be widely used in metallurgy, chemical industry, light industry, food, corporate IT departments in a vacuum process. Construction materials: cast iron, stainless steel and cast steel of different grades.