Flexible steam tubing suggestions?

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makinsmoke
Posts: 1866
Joined: Thu Jul 10, 2003 12:56 pm
Location: Texas Hill Country

Re: Flexible steam tubing suggestions?

Post by makinsmoke » Thu Jun 27, 2019 6:42 am

Isn’t the supply fitting on the Allen ten wheeler 1/4” not x 3/8” tube flare?

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cbrew
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Location: Vancouver Wa

Re: Flexible steam tubing suggestions?

Post by cbrew » Thu Jun 27, 2019 10:06 am

FYI,. I run 1/4 copper line after the Y pipe and i have no issues delivering more then enough steam to run like a scolded animal. if anything it helps when starting a long train with a light locomotive.
if you stop and think about it, the ID of the 1/4 copper is pretty close to the ID of the 1/8 npt pipe that feeds the cylinder castings
(Allen American and Ten wheeler)
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Kimball McGinley
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Location: Laguna Niguel CA

Re: Flexible steam tubing suggestions?

Post by Kimball McGinley » Thu Jun 27, 2019 11:13 am

Thanks Chris! I was considering comparing the I. D. s from throttle to cylinder to see if 1/4 copper tube would be suitable; now I will do it for certain.
Don Young did not leave very much room between the front wall of the saddle and the cylinder supply line; a commercial 5/16" Flare Nut (5/8" hex) does not fit! (To be fair, he did show, but not detail, some 1/2" Hex custom unions; I was trying to use off-the-shelf hardware instead.)
That is why I was asking if somebody had already worked out some more compact union fittings. (Thanks again Fred V.!!!) The Fred V. [Bill Van Brocklin] 1/4" fittings (7/16" or 1/2" Hex Nuts) should fit with room to spare...

Kimball

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Builder01
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Location: Erie, PA

Re: Flexible steam tubing suggestions?

Post by Builder01 » Thu Jun 27, 2019 1:00 pm

I see where you went with this, thanks. - David

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