UPVC or connected diaphragm valves are that diaphragm separates the inner part of the lower valve

body from the inner valve cavity of the upper valve cover. $o that the vlve stems, disc and other perts above

the diaphragm are not corroded by the medium, and the packing seal structure is omitted, and no dielectic

leakage is generated. The inner cavity is the diaphr agm which is made of rubber 0r plastic and soft seal, and

the sealing property is good.