| GM perfect vacuum diaphragm valve for connection or separation vacuum system. The connection form has the loose flange connection, to unload the flange connection, the connecting pipe to weld I, the connecting pipe welding quicklyⅡ. Is suitable the medium for the air and the non-caustic gas. But the connecting pipe welds I,ⅡThe vacuum diaphragm valve is in the lithium bromide refrigeration plant's ideal fitting.Attachment flange standard according to GB6070, JB919 and GB4982 | |