[modeleng] Re: Copper boilers
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Wed, 1 Dec 2004 09:45:18 -0800 (PST)
Peter, what if the boiler is a Water Tube Marine
design, that is Propane fired, and has no blower?
Would a "Full Blast Fire" situation on the burner
suffice?
Al Messer
--- Peter Sheppard <peter.sheppard@xxxxxxxxxx> wrote:
> 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
>
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>
>
> -----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
>
>
> MODEL ENGINEERING DISCUSSION LIST.
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