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  1. Cap Quang Man

    Use FCI 70-2 in Valve seat leakage

    Hi all members, Seat valve leakage follow FCI 70-2 shows that: Class IV - Valve Leakage Classifications Intended for single port and balanced single port valves with extra tight piston seals and metal to-metal seats. • 0.01% leakage of full open valve capacity. • Service dP or 50 psid (3.4 bar...

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