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josej
Power-User

Join Date: Mar 2008
Location: Mumbai
Posts: 250
Good Answers: 2

Leakage Class for On - Off Valves

03/01/2012 12:05 AM

Dear All,

For Emergency shutdown valves Ball Type defined as UZ,what is the right way for

mentioning Leakage class (Class VI or TSO Tight shut off valve)

Regards

Jose
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nikunjjain
Active Contributor

Join Date: May 2008
Location: Mumbai
Posts: 11
Good Answers: 1
#1

Re: Leakage Class for On - Off Valves

03/05/2012 12:58 PM

For any type of valve right way of mentioning the leakage class is by mentioning as leakage class VI or leakage class IV etc.

If TSO is mentioned then different manufacturer may offer different leakage classes. For eg in case of liquids, TSO can be achieved by Class IV also,however in case of gases Class VI is preffered for TSO

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 Nikunj Jain
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