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Fire tubes

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Peter Simpson 326/10/2021 10:37:45
40 forum posts

What fit should be achieved when fitting fire tubes to the tube plate prior to silver soldering ? I have my 5" gauge fire box fabricated and I'm now looking to assemble the tube stack. As per other info the tubes pass through both front and rear tube plates with out rubbing, Do the tubes require swaging into position. If so how do you swag the fire box end of the tubes with the fire box fabricated ?

duncan webster26/10/2021 13:26:25
3926 forum posts
61 photos

Buy a copy of Keith Hales book from Cup alloys. Don't listen to anyone who says to make them a tight fit

fizzy26/10/2021 21:38:10
1841 forum posts
120 photos

I wouldnt take advise from anyone other than a boiler maker - feel free to pm me.

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