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Small "Mill Engine Plant" (Display)

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rleete:
Nice writeup.  Thanks for taking the time and the pics.

klank:
Thanks rleete, you are most welcome.

Stilldrillin:
Peter,
Very nicely done, and shown......  :clap:

David D

bogstandard:
Klank,

You will find that 5/32" (4mm) and 1/8" (3.2mm) is available for use as brake lines, and is used more over here for steam lines than the 3/16" (4.7mm). The Americans tend to go for large pipework for some reason.

Unless the engine is rather large, say over 1.25" bore, then 5/32" is ideal, then for say 1/2" and below, 1/8" would become the normal piping to use.

It isn't just for show either, it has a lot to do with keeping the steam hot enough, as when you use too large a bore, the steam is expanding into it, and so losing heat and pressure, and then of course, efficiency. Seeing how steam engines are very inefficient anyway, it needs all the help it can get.

Bogs

klank:
Thanksfor that Bogs - all new to me, but most useful and filed away - I clearly did not do enough research before doing the piping! As I said, I went for the bigger pipe to try and eliminate back pressure in the bends I shall have to make.
Anyway - I've bought the pipe now and will carry on with it (budget is very tight). I shall be running the steam line around the heated part of the boiler cabinet/burner to try and minimise heat loss and give its contents some form of drying (not really a superheater), so maybe that will help a bit.

Peter

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