2207310

FCI 70-2-2021

Control Valve Seat Leakage

standard by Fluid Controls Institute , 2021

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About This Item

 

Full Description

ANSI/FCI 70-2-2021 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 valves with "O" rings or similar gapless seals, among others.
 

Product Details

Published:
2021
ANSI:
ANSI Approved
Number of Pages:
12
File Size:
1 file , 260 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. FCI 70-2-2021

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    Control Valve Seat Leakage

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  2. FCI 70-2-2013


    Control Valve Seat Leakage

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  3. FCI 70-2-2006


    Control Valve Seat Leakage

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  4. FCI 70-2-2003


    Control Valve Seat Leakage

    • Historical Version