[modeleng] Re: Copper boilers
- From: "Tim Rickard" <the_viffer@xxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Wed, 01 Dec 2004 16:51:40 +0000
That is nearly my understanding too. I understand leaks from fittings are OK
unless they are an indication of thread stripping. Leaks from the boiler
structure even if small are not OK.
>From: Peter Sheppard <peter.sheppard@xxxxxxxxxx>
>As far as I am aware in the UK, the following is required on copper boilers
>every two years (it may apply to steel boilers as well).
>
>1.5x hydraulic test; plus
>steam test to demonstrate that with a full blower the safety valves will
>maintain pressure at no greater than 10% above working pressure and at the
>same time look for significant steam leaks
>
>Cheers
>
>Peter
>
>------------------------------------------------------------------------
>-----------------------------------------------------------
>Hi there Al,
>
>One slight thing which you mentioned, which no-one seems to have commented
>on.
>
>Over here in the UK, we normally give steel boilers an annual test
>(correct me if I'm out of touch anyone), but copper boilers are only
>tested every two years, and I had been lead to believe that this was just
>the hydraulic test.
>
>I know that the initial hydraulic test is to twice working pressure -
>has someone mentioned before that some retests need only be to 1.5 times
>working pressure?
>
>Yours,
>
>
>Rich.
>
>
>On Wed, 1 Dec 2004, Allen Messer wrote:
>
> > Thanks for the input, Gents! I'll just have to whip
> > out a pump and give 'er a good test.
> >
> > Al Messer
> > --- alanjstepney <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > wrote:
> >
> > > Yes.
> > > Over here it is a requirement of all the Model
> > > Engineering Societies and
> > > their insurers.
> > > Apart from that, they can deteriorate over time, and
> > > as a test is so quick
> > > and simple, it is better to test than not.
> > >
> > > alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > >
> > > www.alanstepney.info
> > > Model Engineering, Steam Engine, and Railway
> > > technical pages.
> > >
> > > ----- Original Message -----
> > > From: "Allen Messer" <al_messer@xxxxxxxxx>
> > > To: "modeleng" <modeleng@xxxxxxxxxxxxx>
> > > Sent: Wednesday, December 01, 2004 1:44 AM
> > > Subject: [modeleng] Copper boilers
> > >
> > >
> > > Since it is assumed that model boilers made from
> > > Copper are not affected by corrosion as are those
> > > made
> > > of Steel, is it necessary to give them an annual
> > > hydro
> > > and steam test?
> > >
> > > Al Messer
> > >
> > >
> > >
> > >
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>--------------------------------------------------------------------
>Peter Sheppard BSc (Hons) CEng FIEE FIRSE FSaRS
>Principal Consultant
>Lloyd's Register Rail Limited
>5th Floor, 37-39 Corn Street
>Bristol BS1 1HT
>
>T: 0117 929 4443
>F: 0117 929 4554
>M: 07760 167 617
>E: peter.sheppard@xxxxxxxxxx
>--------------------------------------------------------------------
>
>
>-----Original Message-----
>From: R.L. Roebuck [SMTP:rlr20@xxxxxxxxxxxxx]
>Sent: Wednesday, December 01, 2004 2:26 PM
>To: modeleng@xxxxxxxxxxxxx
>Subject: [modeleng] Re: Copper boilers
>
>
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