Introduction Actuators are the devices which drive the valve stems. There are many different actuators. They range from the simple hand wheel to the latest microprocessor controlled electrical/hydraulic actuators. The following notes introduce the common types of actuator . You will learn about specialized actuators used on a particular site …
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introduction The valves used on a plant can be grouped into two main types. Shut Off Valves: Shut off valves can be operated by hand or operated automatically using an actuator. Their purpose is either to allow full flow through the valve or shut off the flow completely. They …
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An actuator is something that converts energy into motion. It also can be used to apply a force. An actuator typically is a mechanical device that takes energy — usually energy that is created by air, electricity or liquid — and converts it into some kind of motion. That motion …
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