What is a Pneumatic Actuator ?
Actuator : By themselves, valves cannot control a process. Manual valves require an operator to position them to control a process variable. Valves that must be operated remotely and automatically
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Basics of Valves Interview Questions & Answers
What is a Valve? A valve is a device that controls the flow of a fluid or gas. Today’s valves can control not only the flow, but the rate, the volume,