RE: Re: Minimum distance between Fittings

From: <HITESH>
Date: Thu Mar 27 2003 - 04:46:00 EST

This must be a historical reply for piping design group. I will like to preserve this mail. And,Thanks for replying on behalf of me from TCL. Hitesh

Ashok T Dani <ashokdani@tatachemicals.com> on 03/27/2003 01:41:09 PM

Please respond to PipingDesign@yahoogroups.com

To: "'PipingDesign@yahoogroups.com'" <PipingDesign@yahoogroups.com> cc: (bcc: HITESH N PRAJAPATI/L&T-CHIYODA) Subject: RE: [PipingDesign] Re: Minimum distance between Fittings

Thanks, Forum Members...
No matter...after one year...got the answer..... Regards,

      -----Original Message-----
      From:     tomcruz55 [SMTP:tomcruz55@yahoo.com]
      Sent:     Thursday, March 27, 2003 12:34 AM
      To:  PipingDesign@yahoogroups.com
      Subject:  [PipingDesign] Re: Minimum distance between Fittings

      The HAZ width in butt weld joint is very very narrow. So what's with

      the 50 mm pup piece? We've welded a pup piece less than this to make

      up for the shoratge in the "short lenght" gate valve without a
      problem. As long as it pass the NDE and hydro and matl is usitable
      for service, chances are your fabricated pipe spool will be OK.

      For the criteria related to dimesnion of fabricated spool, ive go
      with the PFI Standard.

      --- In PipingDesign@yahoogroups.com, "Glenn Dillon"
      <glenn.dillon@t...> wrote:


      > Hitesh, assume these are butt weld fittings.  Fitting to fitting

is


      > preferred but where not possible I work on minimum pup spool

      distance of 50


      > mm to allow for weld effected zone and weld efficiency.  Haven't

      had any


      > failures yet.  With steam, elbows can be highly stressed and its

      best to


      > ovoid short pipe sections and layout distribution to allow fitting


      to


      > fitting.

      >

      > Hope these comments of some help.  Best regards Glenn

      >

      > -----Original Message-----

      > From: Ashok Dani [mailto:ashokdani@t...]

      > Sent: Friday, March 22, 2002 4:29 PM

      > To: 'pipingdesign@yahoogroups.com'

      > Subject: [PipingDesign] Minimum distance between Fittings

      > Importance: High

      >

      >

      >

      > > What is the minimum distance required between Bend-Tee or

Tee-Tee
      for


      > > Steam

      > > line or as per B31.1?

      > > Thanks in advance

      > > Hitesh

      >

      >

      > _____________________________________________________

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      >

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Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Received on Thu Mar 27 04:46:00 2003