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Knowsome
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Join Date: Mar 2012
Posts: 10

SCSSV and SSV

09/28/2012 3:29 AM

Is there any recommended closing time for Surface-Controlled Subsurface Safety Valve (SCSSV or SSSV) and Surface Safety Valve (SSV)? Which standards should I refer to?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#1

Re: SCSSV and SSV

09/28/2012 3:37 AM

There has to be one in the operating company's Valve Specifications, otherwise it couldn't be commissioned properly and any fly-by-night could build and sell them with potentially disastrous consequences for the environment. So the first thing to check is the content of the operating company's standards book.

The second thing is the Control Philosophy document.

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Knowsome
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Join Date: Mar 2012
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#2
In reply to #1

Re: SCSSV and SSV

09/28/2012 3:50 AM

Thank you PWSlack. It is specified in the company's specification but I am looking for the basis of such requirement either 15sec, 30sec, 45sec or 1min is the correct and reasonable closing time.
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PWSlack
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#3
In reply to #2

Re: SCSSV and SSV

09/28/2012 3:55 AM

The basis of the requirement has been considered by the individual(s) that authorised the specification for use. So this/these people, or their successors in similar roles, are the right one(s) to ask. If there is a concern over the content, then this is the correct arena for those concerns to be aired and the specification to be revised and reissued if necessary.

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Knowsome
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Join Date: Mar 2012
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#4
In reply to #3

Re: SCSSV and SSV

09/28/2012 4:02 AM

Thank you.
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thccontrols
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Join Date: May 2010
Location: UK
Posts: 89
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#5

Re: SCSSV and SSV

09/28/2012 11:23 PM

Yes, API standards!
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