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Safety interlock designs commonly add an on-off ball valve for safety interlock. It is suggested that the existing throttling process control valve may be a better choice.
Enterprise-Control System Integration − Part 8: Information Exchange Profilesstandard by The International Society of Automation, 05/08/2020
Enterprise-Control System Integration - Part 5: Business-to-Manufacturing Transactionsstandard by The International Society of Automation, 12/03/2018
Mechanical Integrity of Safety Instrumented Systems (SIS)standard by The International Society of Automation,
Book by The International Society of Automation, 01/01/2006