Product: ASTM A351 CF3M Bidirectional Butterfly Valve.
Nominal diameter: DN50-DN4000.
Nominal pressure: PN10-PN25.
Applicable temperature: ≤200℃, ≤425℃.
Valve body: ASTM A351 CF8, ASTM A351 CF3M.
Stem: SS 304, SS 316L.
Valve body sealing: Surfacing 507.
Butterfly plate sealing surface: SS 304.
Filler: Flexible graphite or PTFE.