Re: Re: SOFTWARE FOR PIPE THICKNESS CALC

Good idea.
Solving pipe thickness don't require complicated software but only needs the following data:

1. What is the design pressure?
2. What is the operating temperature?
3. What is the ID of the pipe you intend to use?
4. What fluid will pass through your pipe

After all of this has been gathered, there are so many books with applicable graphs,tables with material specifications.

Solve the thickness, t = IDp/2S where: ID=pipe inside diameter, p=design pressure, S=allowable material stress at a certain temperature.

It is better to know the temperature specially for steam piping to attain the right material and to interpolate the material stress against temperature.

"There are no simple solutions...only intelligent choices"

Joshua G. Rizaga
Engineering Manager
VWC, Philippines

• elie altawil <eliealtawil@yahoo.com> wrote:

> Ckeck GPSA Data Book (11th edition) for guidance:
> See Fig. 17.23 and 17.24 for formulas, Fig 17.25 for
> allowable stresses, Fig. 17.26 and 17.27 for
> examples.
>
> tomcruz55 <tomcruz55@yahoo.com> wrote: I still dont
> get why you need a software to figure out the req'd
> thickness?
>
> You dont need the nodes, the piping outlines to calc
> the thickness
> of the pipe (min. req'd and nominal) and you dont
> even need to write
> a macro. Its a straight forward application of 304
> in B31.3 -2002.
> You can get the number in less than 5 minutes.
>
>
>
> --- In PipingDesign@yahoogroups.com, Narendra Roy
> <narendra_roy@y...> wrote:
> > Do you really need to purchase a software for
> > Thickness evaluation? I have the demo CD of
> AutoPIPE
> > which is fuctional upto 20 nodes and you can
> quickly
> > model in a minute the pipe run in X-Y plane and
> put
> > your design pressure and temp, materials and get
> the
> > qualified schedule of the pipe for the size. It is
> > that simple. Just work on and then you will forget
> the
> > $ outflow. And even for the time you put, will
> > behardly 5 minute in all. If you do otherwise you
> need
> > to have the code volume. calculator, computer, and
> > your engenuity to do fast evaluation without a
> > software help. And try it and you waste your min
> 30
> > minutes straight. you save your precious 20 odd
> > minutes and you are more confident of your result.
>
> > NK Roy
> >
> >
> > --- tomcruz55 <tomcruz55@y...> wrote:
> >
> > > actually im using the software purchase from
> Coade
> > > the likes of CII,
> > > CodeCalc and Tanks. For a quickie, i just used
> > > either the Casio
> > > programmable or the excel.
> > >
> > > But for dimensions or just figuring out the max.
> > > vel, i just grab
> > > the slide rule from M.W. Kellog.
> > >
> > > For those lacking the resources, MS Excel is an
> > > excellent tool.
> > >
> > >
> > >
> > > --- In PipingDesign@yahoogroups.com, virgilio
> > > balbuena
> > > <virgiliobalbuena@y...> wrote:
> > > > Friend,
> > > >
> > > > I am so amazed with this question , by
> the
> > > way to make it
> > > short you may use mathcad software to create
> your
> > > formula in
> > > calculation of wall thickness base on ASME 31.3
> > > ,31.4....etc...I
> > > have done this already and it is so easy....
> > > >
> > > > regards,
> > > >
> > > > friend.....
> > > >
> > > > tomcruz55 <tomcruz55@y...> wrote:
> > > > A lot of engineers/designers in INdia,
> Indonesia,
> > > Phil and other
> > > > places doesnt get paid $95/hour. And as ive
> said,
> > > if money is no
> > > > object sure go ahead and purchase the
> software.
> > > >
> > > > And if you work in an organization that pays
> > > $95/hour then
> > > resources
> > > > will be available. Meaning, the question
> shouldnt
> > > have been raised
> > > > in the first place.
> > > >
> > > >
> > > >
> > > > --- In PipingDesign@yahoogroups.com, elie
> altawil
> > > <eliealtawil@y...>
> > > > wrote:
> > > > > My billing time is $95/hour. I sure can't
> build
> > > the spreadsheets
> > > > available in <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>
> software
> > > with 3 hour time.
> > > > >
> > > > > Cheers,
> > > > >
> > > > > tomcruz55 <tomcruz55@y...> wrote:
> > > > > Need money to spend. If you have lots of it,
> > > then theres nothing
> > > > > wrong with buying the software.
> > > > >
> > > > > By the way, most of whats included in the
> > > pipingoffice is
> > > > available
> > > > > in charts and tables or could be handle by a
> > > simple excel macro
> > > or
> > > > > calculator.
> > > > >
> > > > >
> > > > > --- In PipingDesign@yahoogroups.com, elie
> > > altawil
> > > > <eliealtawil@y...>
> > > > > wrote:
> > > > > > What is wrong with:
> > > > > > <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>
> > > > > >
> > > > > >
> > > > > > Cheers,
> > > > > >
> > > > > > --- Narendra Roy <narendra_roy@y...>
> wrote:
> > > > > >
> > > > > > > Please use AutoPIPE for such evaluation.
> > > > > > > NK Roy
> > > > > > >
> > > > > > > --- tomcruz55 <tomcruz55@y...> wrote:
> > > > > > >
> > > > > > > > Just the wall thickness. If yes, then
> > > Whats wrong
> > > > > > > > with MS Excel? If
> > > > > > > > you like you can even call out the
> nominal
> > > pipe
> > > > > > > wall
> > > > > > > > thickness using
> > > > > > > > the allowances specified by you.
> > > > > > > >
> > > > > > > > --- In PipingDesign@yahoogroups.com,
> > > > > > > > <Krishna.Vyakaranam@a...> wrote:
> > > > > > > > >
> > > > > > > > > HI,
> > > > > > > > > can anybody pl suggest megood
> software
> > > for PIPE
> > > > > > > > THICKNESS CALC
> > > > > > > > which covers ASME B31.3 thru all asme
> > > Codes.
> > > > > > > > >
> > > > > > > > > Best Regards,
> > > > > > > > > V.V.N.KRISHNA
> > > > > > > > > Kvaerner Powergas ( I ) Pvt. Ltd.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
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Send instant messages to your online friends <a href="http://uk.messenger.yahoo.com">http://uk.messenger.yahoo.com</a> Received on Wed Sep 14 09:42:00 2005