Re: (erielack) Feedwater heater Photos

[Rich Young <ryoungceo_@_yahoo.com>]

- --- bob gillis <robertgillis_@_verizon.net> wrote:

>  From the third picture I gather that only a portion
> of the exhaust 
> steam was used as feed to the feedwater heater.
> 
> The exhaust steam was sprayed by cold water and
> condensed.  How was the 
> exhaust steam divided from the main exhaust?  Or did
> the different pipe 
> sizes do it?


   There is a port off of the  cylinder  saddle
casting that is hooked up to the exhaust passage from
the valve to the nozzle in the smokebox a pipe
delivers the exhaust steam to the exchanger ( any
feedwater version) Since steam locomotive a dual
acting pistons there is constant flow of exhaust steam
(except for a very breif period during the valve lap)
Since there was far more exhaust steam than could be
accepted by a BL unit the excess just went down the
normal passage to the exhaust nozzle. Usually it is a
3" to 4" delivery pipe from the exhaust port to the
exchanger.


Rich Young

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