Control valves

Control valves

Industry: Industrial valves

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Control valves

air-to-close

Industrial valves; Control valves

An increase in air pressure to the actuator is required to cause the valve to close. This is another way of saying the valve is Fail Open or Normally Open.

transducer

Industrial valves; Control valves

An element or device which receives information in the form of one quantity and coverts it to information in the form of the same or another quantity. (See I/P)

A flow characteristic that provides maximum change in flow rate at low travels. The curve is basically linear through the first 40% of travel. It then flattens out indicating little increase in flow ...

actuator

Industrial valves; Control valves

A fluid-powered or electrically powered device that supplies force and motion to a valve closure member.

piston actuator

Industrial valves; Control valves

A fluid-powered, normally pneumatic device in which the fluid acts upon a movable cylindrical member, the piston, to provide linear motion to the actuator stem. These units are spring or air opposed ...