Steam Boiler Filling

[nw-mailing-list at nwhs.org]

Dave,

At locomotive servicing facilites in the old days.  A connection would be
made to the blow down valves and the boiler would be pumped to half a glass
of 180 degree hot water and filled with steam to about 150-200 psi.  This
apparatus is called modified steaming.  when the engine was called the
engine would go out to a service track and have its fire lit.

At a small facility that wasn't set up in this way a plug could be removed
and the boiler filled with a large hose then heated up slowly to avoid heat
stress.

With modified steaming, it made for a very efficent procedure.  which was
also used after boilers were washed out or waiting for long periods with
fire droped.

John Rhodes


On 6/29/06, nw-mailing-list at nwhs.org <nw-mailing-list at nwhs.org> wrote:

>

>  Lister,

>

> All this discussion on locomotive wheels, treads, slippage and track

> curvature some how got me to thinking about how a steam locomotive boiler

> was filled with water when the boiler was cold and empty such as having come

> out of heavy repairs or having been drained for some repair work.  (Please

> don't ask how I came up with the question from the previous discussions-who

> knows the workings of the mind?).  Obviously without water in the boiler

> steam could not be produced to drive the various appliances to put water

> into the boiler.  Was it just simply opening  fill plug(s) on the boiler and

> letting gravity do the work?  Or some other way?  The answer may be obvious

> but not having been around those magnificent steam locomotives in their

> hayday I'm at a distinct disadvantage.

>

> Thanks in advance for any responses and tolerating my question.

>

> Dave Moorehead

> Milford, OH

>

>

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