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Control Valve Seat Leakage
standard by Fluid Controls Institute, 04/01/2006

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Description

It is strongly recommended that users of FCI 70-2 also obtain a copy of FCI 70-3

Order 70-2 as a set with 70-3 and save!

This standard establishes six classes of seat leakage for control valves. Also defined are specific test procedures to determine the appropriate class. Included are classes commonly associated with double-port, double-seat or balanced single-port control valves with a piston ring seal or metal-to-metal seats; commercial unbalanced single-port, single-seat and balanced single-port valves with extra tight piston rings or other sealing means and metal-to-metal seats; valves for critical applications where the control valve may be required to be closed, without a blocking valve, for long period of time; and resilient seating control valveswith “O” rings or similar gapless seals, among others.

Product Details

Published:
04/01/2006
ANSI:
ANSI Approved
Number of Pages:
9
File Size:
1 file , 130 KB
Part of:
FCI 70-2-2006 & 70-3-2004 Set