... Diaphragm valve,Stainless steel diaphragm valve,Sanitary quick-installed diaphragm valve, triplet diaphragm valve, Pneumatic Diaphragm valve,,Stainless steel diaphragm valve,Sanitary quick-installed diaphragm valve, triplet diaphragm valve, Pneumatic Diaphragm Valve, U-type diaphragm valvephragm valve,3way diaphragm ... Material quality: All our valve bodies are made of 1.4404 (316L),3) Seal Ring: Soft ...