size based on piston or effective diaphragm area and spring characteristics. This subcommittee will address control valves that directly transmit actuator linear motion to the closure components. This ...

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 ...

The piston is returned to its original position by a spring. A pneumatic single ... mechanisms or ejecting parts. 3/2 valves or 3 port valves are directional control valves that manage the flow ...