The technical report is limited to automated valves normally operating in either a full open or full closed position. The boundary of the automated valve includes the following:

  • Limit switches and other monitoring devices
  • Air regulation and filtration system
  • Valve actuator whose fail position is specified as spring-return fail closed, spring-return fail open, or double acting
  • Valve body specified to meet the functional requirements for its application

The technical report does not address automated valves used for regulatory control applications.

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For more information, please contact

Eliana Brazda
ISA Standards Administrator
(919) 990-9228