Re: Estimation, Proposal Phase

From: <Alok>
Date: Sun Aug 05 2007 - 14:01:00 EDT

That`s the tricky one, different cos. have different yardsticks for them depending upon the plant nature and the level of information level available. in general you may use 15-25 % for pipe and fittings, flanges & valves-10-15%.special items 10 -15%, etc

regards
alok dubey

• Original Message ---- From: sattar hkan <pip04bbi@yahoo.com> To: <a href="/group/PipingDesign/post?postID=0P2zDgzF35z0WhJ9k5XKLf4kP5Db3EEj7XGlblWgQ3oHIABd3fQKyT11gFCDKqwcm67S1ga64n-vHXeLlZ86_NaY7ksTow">pipingdesign@yahoogroups.com</a> Sent: Sunday, August 5, 2007 2:02:20 PM Subject: [PipingDesign] Estimation, Proposal Phase

Hi,
As a general rule in the proposal phase, piping MTO is done according to preliminary P&ID's and preliminary routing study. regarding to any practical results, would you please let me know how many percent is needed to add (normally)o preliminary take-off, i.e. pipe, valves, flanges, fittings & gaskets.... for items smaler than 2" and equal & larger than 2".

Regards,

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Received on Sun Aug 05 14:01:00 2007