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can we use a control valve without positioner

Answer Posted / kamesh.g

No we can not control the control valve without positioner
eccept on-off type control valves ,Positioner main purpose
is boostup the air signal from I/P and put the position as
per your requirement ( Command)positioner link rod will
give the feedback to control valve air command air supply
so it can adjust the valve in correct position.

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