Austenic stainless steel butterfly valves are widely used in corrosive service of chemical industry. Main part material of butterfly valve are all austenic stainless steel, include body, disc, shaft. It includes concentric type and eccentric type construct. Above butterfly valve is three eccentric austenic stainless steel butterfly valve.
General austenic stainless steel include A351 CF8M, A351 CF8, A351 CF3M, A351 CF3, A351 CF8C, A351 CN7M, etc. Which also named SS316, SS304, SS316L, SS304L. These material can be valve body , valve disc . There are two type seat sealing for triple offset butterfly valve, the one is laminated seat, which is made by graphite plus stainless steel; the other soft seat, which is PTFE, RPTFE, EPDM etc.
General connecting type include flange end, wafer end, LUG end, butt welded end.
ZFV availabe operator type of butterfly valve include manual lever operated valve, manual gear operated valve, pneumatic actuated valve, ellectric actuated valve, hydrostic actuated valve and so on.
ZFV is a profesional API butterfly valve manufacturer, who produce and test valve accordingly API standard strickly, if needed, customer may nominate third part inspector to test valve, also welcome customer themself to come to test valve in our factory.
Zhejiang Zhengfeng Valve