plugging a hole

Simple pot still distillation and construction with or without a thumper.

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stillvodka
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plugging a hole

Post by stillvodka » Mon Apr 06, 2009 9:25 am

In the process of build a boiler up on my pot still, I have decided to put a 3 ''diameter spout for filling and cleaning out the boiler, I need to find something so as to plug the hole air tight when I run the still, I don't want anything elaborate, I was thinking on a large Cork, have anyone got any better suggestions? I not 100% about using cork though, is there problems with the use of cork with regards high % alcohol.

punkin
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Re: plugging a hole

Post by punkin » Mon Apr 06, 2009 12:01 pm

stillvodka wrote:In the process of build a boiler up on my pot still, I have decided to put a 3 ''diameter spout for filling and cleaning out the boiler, I need to find something so as to plug the hole air tight when I run the still, I don't want anything elaborate, I was thinking on a large Cork, have anyone got any better suggestions? I not 100% about using cork though, is there problems with the use of cork with regards high % alcohol.

Best idea would be to thread it and use a ball valve.

Another material if youre unwilling to do that is timber. As it gets wet it swells slighly making it seal better.

rad14701
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Re: plugging a hole

Post by rad14701 » Mon Apr 06, 2009 2:42 pm

I'd go with a hardwood bung but a softwood bung would also work...

stillvodka
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Re: plugging a hole

Post by stillvodka » Mon Apr 06, 2009 9:56 pm

I don't know much about wood really, would there be any sort of Resin or tannings in the wood that might come out. 3'' bung is quite big.

eternalfrost
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Re: plugging a hole

Post by eternalfrost » Mon Apr 06, 2009 10:16 pm

im not a carpentry expert, but a hardwood like oak or cherry should do fine. I know first hand that pure cork works great, but getting a 3" bung of it would be tricky...

I would try to make it a mechanical type valve rather then simply a big hole with a hunk of wood shoved in it...

Dnderhead
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Re: plugging a hole

Post by Dnderhead » Mon Apr 06, 2009 10:23 pm

if your clever enough , you could make a cover like corny keg has.

stillvodka
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Re: plugging a hole

Post by stillvodka » Mon Apr 06, 2009 10:42 pm

eternalfrost wrote:im not a carpentry expert, but a hardwood like oak or cherry should do fine. I know first hand that pure cork works great, but getting a 3" bung of it would be tricky...

I would try to make it a mechanical type valve rather then simply a big hole with a hunk of wood shoved in it...
Dnderhead wrote:if your clever enough , you could make a cover like corny keg has.
A hunk of wood shoved in it :lol: Yes it does sound bit of a bodge job.

Make a cover like corny keg has? I haven't seen that one.

punkin
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Re: plugging a hole

Post by punkin » Tue Apr 07, 2009 12:00 am

Or a flange and triclover blank end.

Why do you need a 3" fill port?

mines 3/4 and works just fine with a six inch wide copper funnel shoved through the ball valve.

myles
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Re: plugging a hole

Post by myles » Tue Apr 07, 2009 1:22 am

I supose 3" would be quite handy for emtying / flushing it out. I wouldn't bother with any of the bung type solutions they will probably just annoy you in the end with bad seals etc. Put a flange on it and either use a bolt on blanking plate or a triclover type arrangement
An slightly cheaper alternative is to put a flange on your spout and use a flour paste seal and spring clips with a small bowl to seal it up when it is not in use.

eternalfrost
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Re: plugging a hole

Post by eternalfrost » Tue Apr 07, 2009 10:42 am

triclovers rock, they sell them in 3 inches at mcmaster or brew sites. you can get blank stopper plates that will seal off a ferrule with a clamp

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Re: plugging a hole

Post by 1fourme » Tue Apr 07, 2009 12:12 pm

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stillvodka
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Re: plugging a hole

Post by stillvodka » Tue Apr 07, 2009 10:00 pm

Thanks everyone,
For your advice and ideas, the more info the better, more options open up that way, saves me having a brain ache, my boiler is stainless keg, They are great for boilers but hard to work on, I was a welder at one point and can Tig weld to not a bad standards, needed to give it up though, breathing in too much crappy fumes, mig welding messed up my sinuses, sold all my gear last year apart from my oxy portapak, if i still had my Tig , eliminates alot of problems with stainless steel

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