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Old 11-24-2007, 07:28 PM   #1
Alemental
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The recent article in BYO magazine on building a brewery stand (Brutus 10, I think they called it) has me contemplating adding an automated recirculation temp control to a keggle in my system for a mash tun. The author of that article uses a low-pressure propane system, and made a pilot light by just drilling small holes in a block of brass and running propane through it.
Does anybody know if this will work in a high-pressure propane system? (I use Hurricane burners)
Or any tips or links to info on adding a pilot light would be appreciated.


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Old 11-24-2007, 07:39 PM   #2
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Quote:
Originally Posted by Alemental
Does anybody know if this will work in a high-pressure propane system?
No reason it wouldn't work. Pay attention to the article - the holes are drilled in a very specific pattern to keep the pilot lit even in a light breeze. Also, start with REALLY small holes (#60 or smaller) since you're using high pressure. A set of drill bits like this might be helpful:



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Old 11-24-2007, 07:53 PM   #3
Alemental
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I'm glad that you pointed out the hole pattern. I glossed over the fact that 4 sides would keep at least one side shielded at all times.
I have number drills, I think that the smallest in my set is a #60, but I'll start smaller if I can.
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Old 11-24-2007, 11:47 PM   #4
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I know a feller that just used an orifice-no burner attached- to serve as the pilot.
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Old 11-25-2007, 02:02 AM   #5
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Quote:
Originally Posted by Henry Hill
I know a feller that just used an orifice-no burner attached- to serve as the pilot.
No kidding!! You mean just a piece of tube or pipe?
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Old 11-25-2007, 05:40 AM   #6
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Hi Alemental...

You know when I built Brutus 5, I had high pressure burners and a single capillary tube plumbed to the burner with a fitting and a single hole for the pilot. I had it positioned just a bit below the burner because when the burner lit it would snuff the flame out on the pilot. Once I found the right position for the single pilot it worked GREAT with my high pressure burner!

Look at Brutus Ten carefully and you can see that running the pilot is very easy in spite of the fact that I may have talked it up, and it will work for you. You simply need to get a small adjustable flame next to your burner. It may take a little fiddling, but it works… Let me know and I can send you better pics if need be. Maybe one or two of the old Brutus 5!
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Old 11-25-2007, 02:48 PM   #7
Alemental
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Good, coplink,
If it worked for you, it should work for me. One question: what is a capillary tube? A quick search shows them to be thin glass tubes.
By the way, I just bookmarked your website, and will be listening to your podcasts soon.
Thanks,
Bob.
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Old 11-25-2007, 03:05 PM   #8
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A capillary tube is just a very small gage tube: glass, brass, copper, whatever. Small enough that the tube itself functions as a flow restricter. Back in the days when ballpoint pens had metal refills, I used an empty for a capillary.
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Old 11-25-2007, 05:03 PM   #9
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Very true... Mine was a very small dia SS tube with a swagelok fitting.

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Old 11-26-2007, 11:21 PM   #10
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Quote:
Originally Posted by Alemental
No kidding!! You mean just a piece of tube or pipe?
Burner line, minus the burner, I believe.

http://blog.flaminio.net/blogs/index.php?cat=18


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