Dennis Hendershot Forum Moderator 20 Posts
Re: Are there standards that ensure valves are kept open or closed as needed?1 September 2009 at 1:29pm
I am not aware of any standard that specifically defines the requirements for this practice to ensure that valves are either kept open or closed as needed. I believe it is up to each company to establish its own requirements. You can find more information via a previous Ask the Expert question: http://www.chemicalprocessing.com/experts/answers/2006/019.html
Additionally, there is also information at:
I would like to know the reqirements to define a CSC, CSO, LC or LO valve. Is there any standard or guideline for this definition?
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