RE: Re: Valve identification on P&IDs

From: <Mike>
Date: Fri Jan 19 2007 - 15:53:00 EST

Just so I'm clear. are talking about tags as in "numbering" or are we talking of just the spec call-out. Regardless, I think either/both will benefit you and I've seen both of them done..

So basically, if you have, let's say, a 4" line running and you'll see two identical 4" butterfly valves (as an example) on the same line, they'll have completely IDENTICAL numbers underneath them, or are they going to be uniquely numbered sequentially in some manner?

Sorry about this additional e-mail, this just occurred to me a split-second after I hit "Send".

Michael Roble

Piping Department

Continental Design & Management Group

Pittsburgh, PA

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From: PipingDesign@yahoogroups.com [mailto:PipingDesign@yahoogroups.com] On Behalf Of flowr_8
Sent: Friday, January 19, 2007 3:23 PM
To: PipingDesign@yahoogroups.com
Subject: [PipingDesign] Re: Valve identification on P&IDs

Thanks for the quick response Michael.
The tags I'm refering to are pre-determined valve codes. These are an assigned code from which you can ascertain the valve properties. Such things as: Valve type (gate, globe, etc.) end connections (flanged, BW, etc.), rating, material, trim, handwheel or gear operator, and so on.

To answer your questions:
a) These numbers/codes are predetermined and just need to be noted against the valve on the P&ID.
b) These are in the client spec.'s.

Regards,
Richard Beale
Design Coordinator
EnCana Oil and Gas Partnership
Calgary, Alberta, Canada

[Non-text portions of this message have been removed] Received on Fri Jan 19 15:53:00 2007

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