[Steam-engine] Welded boiler certification?

Fri Apr 21 12:58:01 PDT 2006

It is very expensive for a company to get and maintain S and R stamps.
There's no way i'd ever be able to afford to do it, but alot of
fabrication companies go with an R because I think it's a bit cheaper. It
is common for a company with an R stamp to save an original piece such as
a steam dome, this enables them to build a new boiler and call it a
repair. It's kinda crazy how that is setup, with only an R stamp you can't
build a complete new boiler, but... we can re-use the steam dome and build
a new boiler, and call it a repair. I think that has to be renewed yearly
but i'm not sure on that.
Andrew.

>From Andrew at
tech at andrew2.netpluscom.com
engineering at andrew2.netpluscom.com
b10730 at hotmail.com

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On Fri, 21 Apr 2006, Andy glines wrote:

> I know that reusing the dome and calling it a repair
> has been done before and that's why I mentioned it.
> As far as I know Terning (the boiler builder) did not
> have an R stamp either.
>
> --- Lorija799 at aol.com wrote:
>
> > If they reused the dome, then it is not a new
> > boiler, but technically a
> > rebuild of an old one.  work up a drawing, with
> > stress calcs on the thing that
> > gives the mawp and submit it to the authority in
> > question and see what happens.
> > Did Terning have an "R"stamp?  I know there was not
> > "S" stamp, but if it was a
> > repair then the lessor would be ok
> >
> > JJ
> >
> > --part1_3c0.cc3de8.317a7fd2_boundary
> > Content-Type: text/html; charset="US-ASCII"
> > Content-Transfer-Encoding: quoted-printable
> >
> > <HTML><FONT FACE=3Darial,helvetica><HTML><FONT
> > SIZE=3D2 PTSIZE=3D10 FAMILY=
> > =3D"SANSSERIF" FACE=3D"Arial" LANG=3D"0">If they
> > reused the dome, then it is=
> >  not a new boiler, but technically a rebuild of an
> > old one.  work up a=20=
> > drawing, with stress calcs on the thing that gives
> > the mawp and submit it to=
> >  the authority in question and see what
> > happens.  Did Terning have an "=
> > R"stamp?  I know there was not "S" stamp, but
> > if it was a repair then t=
> > he lessor would be ok<BR>
> > <BR>
> > JJ</FONT></HTML>
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>
> Andy Glines
> Evansville, IN
>
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