Full Specification for Butterfly Valves:

1. Brief Definition:

Butterfly valves are rotary valves in which a disc-shaped closure member is rotated through 90°, or

approximately, to open or close the flow passage.

2. Material Specification:

Body: WCB/WC9, Cast Iron, Ductile Iron, CF8/CF3/CF8M/CF3M, Aluminium Bronze

Disc: Ductile Iron, Aluminium Bronze, CF8/CF8M

Seat: NR, BUNA, EPDM, PTFE, NBR, Viton, SI, IIR, Metal Seated

Shaft: Aluminium Bronze, SS410, SS304, SS316, Carbon Steel

3. Standards:

API609, ANSI B16.1, ASME B16.9

4. Size Range:

2" ~ 64" (DN50 ~ DN1600)