Re: FREE EXCEL SHEET Branch connection

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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