Speciality Valve is a respected and leading Double Flanged Butterfly Valve Manufacturer in India . Description of Double Flanged Butterfly Valve Materials: Cast Iron, Ductile Iron, 316, CF8M, CF8, CF3M, WCB, SS316, SS304. Class: 150 to 300. Nominal Pressure: PN6 to PN25. Size: 2" to 72". Ends: Flanged Operations: Electric actuated, pneumatic actuated, gear o...