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Popular Mechanics Boiler
vtsteam:
And how the valve would go together:
vtsteam:
I'm waiting for gauges to arrive, since I want to hydrostatic test the boiler, check the pop off of any relief valve used, And will also have a gauge attached when working. I'm hoping to be able to run 20 lbs pressure with this boiler.
From a little Internet research, 2" electrically welded steel pipe -- sch 40 -- has a working rating of 1500 psi.
It is pierced and tapped however in this design which would reduce that, and the sch 40 CI pipe caps have a working rating of only 150 psi.
So what I'd like to do is hydrostatic test the finished boiler to 150 psi and hold for a half hour. That should give me a reasonable degree of confidence for 20 PSI in use.
One aspect of this boiler that I do like quite a bit is the ability to remove the caps and inspect and clean it periodically. And the ability to replace the copper water tubes easily.
awemawson:
Steve
To limit where silver solder flows to make critical or neat joints use Tippex type writer correction fluid. The solder will not wet where the chalky deposit is left
vtsteam:
I'll remember that, Andrew. I guess that must be the same thing as WhiteOut here.
Today was Fun With Sheet Metal Day! I managed only one small cut on the back of the thumb.....I did everything with snips and a couple of pieces of angle iron clamped in the vise by way of a bending brake. The boiler base came together surprisingly well, for me. I have hardly ever worked in the stuff, and this was pretty heavy gauge metal I had lying out back. A good day! :beer:
vtsteam:
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