# Direct acting and Reverse acting control valve

**URL:** <https://forumautomation.com/t/direct-acting-and-reverse-acting-control-valve/110>\
**Category:** Valves\
**Created:** [October 3, 2014, 12:59pm UTC](https://forumautomation.com/t/direct-acting-and-reverse-acting-control-valve/110 "2014-10-03T12:59:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![instrumen](https://forumautomation.com/letter_avatar_proxy/v4/letter/i/65b543/32.png) [@instrumen](https://forumautomation.com/u/instrumen)\
**Post date:** [October 3, 2014, 12:59pm UTC](https://forumautomation.com/t/direct-acting-and-reverse-acting-control-valve/110/1 "2014-10-03T12:59:56Z")

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Direct acting control valve : The valve port closes on air failure.

Reverse acting control valve: The valve ports on an air failure.