Wafer Type Butterfly Valve

DESCRIPTION:  Hebei Metals supplies Wafer Type Butterfly Valves.  The wafer type butterfly valve is designed to maintain a seal against  bi-directional pressure differential to prevent backflow in piping system   designed for unidirectional flow. It accomplishes this with a tightly  fitting seal, i.e. gaket, and O-ring.

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)