The prime functin of a check valve is to protect mechanical equipment in a piping system by preventing reversal of flow by the fluid which means the check valve is an automatic valve with forward flow and close againgst reverse flow. The closure member of swing check valve swings about a hinge, which is which is mounted outside the seat.
Material Specification:
Body & Cover: WCB, LCB, WC1, WC6, WC9, C5, C12, CF3, CF3M, CF8, CF8M, Aluminium Bronze.
Seat Ring: A105, LF2, F304(L), F316(L), F51
Hinge & Disc: WCB, LCB, WC1, WC6, WC9, C5, C12, CF3, CF3M, CF8, CF8M, Aluminium Bronze
Hinge Pin: F6, F304(L), F316(L), Aluminium Bronze
Bolts & Nuts: B7/2H, B8M/8M
Standards:
API 6D, BS1868, ASME B16.34, ASME B16.5, ASME B16.25, ASME B16.10, MSS SP25

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