Not sure about any rule. But I do not find Gabriel L. Tossi's idea of one
bolt hole up or north the best. By common sense I would rather prefer
offsetting the bolt holes from the principle directions i.e. North, South,
East, West and Up, in which we route most of the piping. This will give
maximum clearance to the fasteners(Studs) which are on a flange which has
only one elbow between pipe and the flange or flanges branch connections
like for temperature elements.
Whereas, keeping bolt hole north or up will give minimum clearance!!!
Regards,
"Liu, Robert"
<robert.liu@ue-1. To:
"'PipingDesign@yahoogroups.com'"
com> <PipingDesign@yahoogroups.com>
cc:
10/09/2002 07:34 Subject: RE: [PipingDesign]
Flange bolt-holes orientation
PM
Please respond to
PipingDesign
Hi all,
Can anyone reply this question please? Is there such rule?
I'm more confused.
Thanks
RObertliu
-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=5wyNaowgJ2EDdWC5HeAoUdMDOhwBzIXheNbLYLk2uL3HoYJZ13pX__EdGai3sF1GPMKScdXaKgo-HTdlr5YxmAxWaw">gabriel.tossi@kvaerner.com</a> [mailto:<a href="/group/PipingDesign/post?postID=5wyNaowgJ2EDdWC5HeAoUdMDOhwBzIXheNbLYLk2uL3HoYJZ13pX__EdGai3sF1GPMKScdXaKgo-HTdlr5YxmAxWaw">gabriel.tossi@kvaerner.com</a>]
Sent: Monday, September 09, 2002 11:20 AM
To: <a href="/group/PipingDesign/post?postID=Tw2A_h06GjP4CEiOXRJrvM_wqzCIo-w2xmNnT8ZXYTxFnaQn10dfbuI0108hlRyDAcoflunBD3BZi8gseXnrWVPtOw">PipingDesign@yahoogroups.com</a>
Subject: RE: [PipingDesign] Flange bolt-holes orientation
I think there must be a rule like "alway orientate one bolt-hole in UP-direction (for horizontal lines) or N-direction (for vertical lines) in accordance with the ISOMETRIC"
With something like this there must be NO problems (if both Iso's are correctly done!!!)
Regards,
Gabriel L. Tossi
Piping Material Engineer
* +31 (0)591 693462
* mailto:<a href="/group/PipingDesign/post?postID=5wyNaowgJ2EDdWC5HeAoUdMDOhwBzIXheNbLYLk2uL3HoYJZ13pX__EdGai3sF1GPMKScdXaKgo-HTdlr5YxmAxWaw">gabriel.tossi@kvaerner.com</a>
KVAERNER Process BV
Houtsingel 5 - Zoetermeer
The Netherlands
From: Liu, Robert [robert.liu@ue-1.com] Sent: Friday 6 September 2002 19:01 To: 'PipingDesign@yahoogroups.com' Subject: RE: [PipingDesign] Flange bolt-holes orientation
Thank you for reply.
But if this is true, then what if I have another spool: Starts with a
flange
which is bloted with the first flange them an elbow which is going to
diferent angle with the first spool.
If the fitter do these spools as you said: orientate boltholes either side
of that" so how can these two spools match up on site since they going to
different angle so are boltholes?
Thanks again.
Robert Liu
-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=usH2cnJMM0tDKTEJcX1xU6_xyj-12q3J-KG-OP5S2QFAs741U0PQIxfZAIag4gZUaNG95T-eZ6vlhHVXktLdp_e8jikJbL8WF6IskA">steve.mcshannon@expro.shell.co.uk</a>
[mailto:steve.mcshannon@expro.shell.co.uk]
Sent: Wednesday, September 04, 2002 8:27 AM
To: <a href="/group/PipingDesign/post?postID=Tw2A_h06GjP4CEiOXRJrvM_wqzCIo-w2xmNnT8ZXYTxFnaQn10dfbuI0108hlRyDAcoflunBD3BZi8gseXnrWVPtOw">PipingDesign@yahoogroups.com</a>
Subject: RE: [PipingDesign] Flange bolt-holes orientation
ARE YOU BEING SERIOUS !??!!?! When the line is being fabricated as a spool, the fabricator doesnt know that the line is necessarily running NW (Very probably using spooling drawings). The bolts will still stradle the principle CL of the pipe. i.e. They will treat the line (running NW) as though it was running north and orientate the boltholes either side of that.
> -----Original Message-----
> From: robert.liu [mailto:robert.liu@ue-1.com] > Sent: 04 September 2002 15:17 > To: robert.liu; PipingDesign > Subject: [PipingDesign] Flange bolt-holes orientation > > > All, > > Unless otherwise noted, piping spool fabricator will assemble > flange so that > the bolting holes straddle the principal center line of > piping or equipment. > so what if I have: > > 1) Piping runs from SE to NW then an Elbow tuning straight > down, on the end > of Elbow there is a flange. What orientation the bolting > holes will be? > > 2) piping runs from SE to NW. In the middle of this piping > run, there is a > Olet type branch, after the Olet there is a flange. So what > orientation the > bolting hole will be? > > Thanks a lot! > Robert Liu > > >> -------~->
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> --------------------------------------------------------------
> > Texas Flange - a good source for information on industrial > flanges, all they ask is for referrals for designs they help with. > 877-610-8924. > www.texasflange.com > ===================================================== > unsubscribe: <a href="/group/PipingDesign/post?postID=XrvomOBq9hkzc2X9B49h5u0z-nS9u2ONh4e_gl1Iu5Bnkt-Fxz0Q_4IKiYfsXkTgrJUpZGEKGLT54Ka083uyY46Oq2HJRBrR1Bb3p7hM1A">PipingDesign-unsubscribe@yahoogroups.com</a> > > Your use of Yahoo! Groups is subject to > <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a> > >
[Non-text portions of this message have been removed]
Texas Flange - a good source for information on industrial flanges, all
they
ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a>
Texas Flange - a good source for information on industrial flanges, all
they
ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a>
Texas Flange - a good source for information on industrial flanges, all
they
ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a>
Texas Flange - a good source for information on industrial flanges, all
they ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a> Received on Thu Sep 12 02:05:00 2002
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