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what is the basic working principle of I/P and Positioner in
any control valve.
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Answer Posted / muhammad jamal
i to p is called current to pneumatic converter.i2p basically takes two inputs one from pressure regulator and one containing 4-20ma and i2p's output goes to positioner in 3-15psi signal form.
positioner provides signal or pneumatic air supply according to the bench set of control valve.each control valve have a bench set
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