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can we use a control valve without positioner

Answer Posted / ashish namdev

YES

1. put air pressure at a certain value (according max air requirement for actuator full action )

2. then connect limit switch at several position (0-100 scale)

3. then make a logic for open & close control action with use limit switch feedback.

4. connect air inlet with solenoid or pilot valve.  

Ashish Namdev (Sr. Engg)
Jaypee Power Plant, 
Bina (MP)
  

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