Re: Ball valve qualification test for vacuum service

From: <sviswan@technip.com>
Date: Sun Feb 10 2008 - 00:42:00 EST

It is an ISO standard under development and is not available for use.

http://www.iso.org/iso/iso_catalogue/catalogue_ics/catalogue_detail_ics.htm?csnu\ mber=44418&ICS1=23&ICS2=160&ICS3=

Sajit

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              08/02/2008 03:30          qualification test for vacuum
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Try ISO/CD 27895-Vacuum technology -- Test procedure for valves.

This might be of help to your requirement.

MCM

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Sajit Viswan <sviswan@technip.com> wrote: Does any one know of any qualification tests as required by a standard for ball valves designed to full vacuum.

The standard API and EN valve standards does not address it.

There used to be a Shell SPE addressing this. But it is now not listed in the current version.

I found these threads at eng-tips,
http://www.eng-tips.com/viewthread.cfm?qid=93211&page=9 http://www.eng-tips.com/viewthread.cfm?qid=150132

Sajit

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Save a tree...please don't print this e-mail unless you really need to. Received on Sun Feb 10 00:42:00 2008