RE: [PipingDesign] Re: FREE EXCEL SHEET Branch connection

From: <av>
Date: Mon Apr 02 2007 - 00:38:00 EDT

there are differences in 31.3,and 31.1
i had made that spreadsheet for 31.3

>From: "jun_atibo" <jun_atibo@yahoo.com>
>Reply-To: PipingDesign@yahoogroups.com
>To: PipingDesign@yahoogroups.com
>Subject: [PipingDesign] Re: FREE EXCEL SHEET Branch connection
>Date: Sun, 01 Apr 2007 07:23:55 -0000
>
>is there any signifcant change between the B31 and Section VIII as
>far as the equation/calcs for the reinf pad is concern?
>
>The reason i ask is that youre stil rounding up the answer to match
>the closest commercially available pipe wall thickness and factoring
>out corroasion rate/mill tolerance.
>
>
>
>--- In PipingDesign@yahoogroups.com, elie altawil <eliealtawil@...>
>wrote:
> >
> > Please meail me at eliealtawil@...
> >
> > You did not say if the spreadsheet is for B31.3/4/8/ or ASMW
>VIII,
> >
> > I will provide you my comments,
> >
> >
> > av a <anup_ach@...> wrote:
> > HI,
> > i made a spreadsheet to calculate automatically the
>reinforcement
> > requirement in a branch
> > it generates a branch table auto matically it can be simply
>ccopied to your
> > desired spreadsheet in case anybody needs it or wants to evaluate
>it let me
> > know.
> > anup
> >
> > >From: elie altawil
> > >Reply-To: PipingDesign@yahoogroups.com
> > >To: PipingDesign@yahoogroups.com
> > >Subject: Re: [PipingDesign] Branch connection
> > >Date: Tue, 27 Feb 2007 17:02:41 -0800 (PST)
> > >
> > >If the branch connection is at 90 deg or perpendicular to the
>pipe, (2-sin
> > >beta) is 1.
> > >
> > > If the branch connection is at an angle of <90 deg, the cutout
>area (or
> > >coupon) will be oval shape which is larger than the flow area of
>the branch
> > >pipe by (2 - sin beta).
> > >
> > > A 45 deg branch connection the coupon will be (2-sin pi/4) =
>29.3%
> > >larger than a coupon from a 90 deg branch.
> > >
> > > Cheers,
> > >
> > > Elie Al-Tawil, Sr. Mechanical Engineer
> > > Denver, Colorado
> > >
> > >Sarawot / MPS
> > wrote:
> > > Dear All,
> > >Please explain me about Branch connection calculation in B31.3
>why A1
> > >multiply by (2-sin?)?
> > >
> > >Best regards,
> > >
> > >Hezb Sky
> > >
> > >
> > >[Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >
> > >
> > >
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