Re: [PipingDesign] Valve material

From: <Christopher>
Date: Tue Jan 15 2008 - 19:52:00 EST

On Jan 15, 2008, at 3:20 AM, sabirap wrote:

> But the vendor offer is
> For ½'' to 1 ½'' – and - For 2'' to 8'' is ASTM A105N
>
> So will this A105 and A181 matches…..where can I check this. I mean
> any standard.

The only way you can know for sure is to read the specs. This is one of those open ended quest people insist on posting. It can't be answered without an understanding of the service and the content of each spec.

You need to tell the vendor to justify the difference and send you copies of both material specifications and all the spec information on the valve. If you're doing it for a client, you'll need to get their approval for the substitution.

You're going to a lot of trouble to approve this departure--make sure it's worth the time and money.
Christopher Wright P.E. |"They couldn't hit an elephant at chrisw@skypoint.com | this distance" (last words of Gen.

.......................................| John Sedgwick, Spotsylvania
1864)
http://www.skypoint.com/~chrisw/ Received on Tue Jan 15 19:52:00 2008

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