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About This Item

 

Full Description

FCI 91-1-2020 shall apply to rotary and linear motion control valves. Bellows, diaphragms and tubular stem seals are not covered by this standard.
This standard shall not apply to valves that are governed by conflicting national or international standards.
Municipal, state and federal regulations may require additional qualifications testing that is beyond the scope of this standard.
The test results from this standard shall only be used to predict leakage at conditions within the qualified pressure and temperature rating.
The laboratory proof of the design as described may not guarantee similar results when the control valve is exposed to different field process conditions.
 

Document History

  1. FCI 91-1-2020

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    viewing


    Standard for Qualification of Control Valve Stem Seals

    • Most Recent
  2. FCI 91-1-2010


    Standard for Qualification of Control Valve Stem Seals

    • Historical Version
  3. FCI 91-1-1997 (R2003)


    Standard for Qualification of Control Valve Stem Seals

    • Historical Version