Name: ASTM A216 WCB Pneumatic Butterfly Valve.
Size: DN50-DN1000.
Working Pressure: PN10-PN25.
Body, disc: Carbon Steel ASTM A216 WCB.
Valve stem: SS 304 or SS 316L.
Applicable temperature: ≤200℃ or ≤425℃.
Butterfly sealing surface: SS 304+PTFE.
Filler: Flexible Graphite or PTFE.