# What are the regular problems occured by control valves in maintainance

**URL:** <https://forumautomation.com/t/what-are-the-regular-problems-occured-by-control-valves-in-maintainance/245>\
**Category:** Valves\
**Created:** [February 15, 2015, 3:52am UTC](https://forumautomation.com/t/what-are-the-regular-problems-occured-by-control-valves-in-maintainance/245 "2015-02-15T03:52:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AKSHAY](https://forumautomation.com/user_avatar/forumautomation.com/akshay/32/58_2.png) [@AKSHAY](https://forumautomation.com/u/AKSHAY)\
**Post date:** [February 15, 2015, 3:52am UTC](https://forumautomation.com/t/what-are-the-regular-problems-occured-by-control-valves-in-maintainance/245/1 "2015-02-15T03:52:08Z")

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can any one give a brief about it.

thanks in advance

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**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [February 15, 2015, 4:01pm UTC](https://forumautomation.com/t/what-are-the-regular-problems-occured-by-control-valves-in-maintainance/245/2 "2015-02-15T16:01:53Z")

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Major problems are

1.Dead band 2.Stiction 3.Positioner overshoot 4 Incorrect valve sizing 5 Nonlinear flow characteristic