Regulating valve structure

2020-11-06View Original

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This post was last edited by Darija on 2020-11-6 at 13:45: https://bbs.hcbbs.com/forum.php?mod=image&aid=2673358&size=300x300&key=43d1da9546125664&nocache=yes&type=fixnone. Does the SUPPLY function of this actuator provide air, while INST is used for controlling the air flow? What is the role of SUPPY? I didn’t understand. This is a control valve from Badger Meter.

Reply #22020-11-07

Teacher, can the file be shared?

Reply #32020-11-19

I finally figured it out: on top of this valve is the positioner, and below it is the actuator. When SUPPLY and INST are reversed, it is as if the locator is short-circuited, allowing the valve to operate as well, but with reduced accuracy.

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Regulating valve structure

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