... level. Mainly by the diaphragm valve body, valve cover, compression spring, stem, diaphragm, cylinder liners, valve seats and gaskets and other parts. Diaphragm valve ... performance, long service life. Diaphragm valve for operating temperature 0 °C ~ 90 °C water, air and non-corrosive ... rise buildings of hot and cold water and fire water supply system, water can replace the conventional partition, ...