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Is brass ok for a still?

Posted:
Tue Sep 28, 2010 10:07 pm
by H2SO4.5
I\'m connecting the various bits up now and hunting for those I don\'t have such as a flange to connect 15mm copper pipe to the stainless steel still lid.
is it safe/ok to use brass fittings or not?
Is brass ok for a still?

Posted:
Wed Sep 29, 2010 12:47 am
by alan
Hi H2SO4.5 when i made my 20 ltr pot still i used a brass fitting what you need is a tank connector, from any plumbers merchants about £2-3. i used a piece of sheet cork to make a gasket between the stainless lid and the lock nut on the tank connector
Is brass ok for a still?

Posted:
Wed Sep 29, 2010 1:54 pm
by phlogiston
Many (?most) types of brass contain a small amount of lead. Whether that matters, I don\'t know -- it\'s a small amount, it\'s not volatile, and there\'s not much brass in the vapour path. I suspect it only matters -- and maybe not even then -- if it\'s in contact with the condensed liquid.
Is brass ok for a still?

Posted:
Thu Sep 30, 2010 2:09 am
by Phantom
As I understand it, normally, it would be a no-no, but as there\'s only the smallest amount of brass actually exposed to the hot vapour I\'d have thought it\'d be Ok.
I used a brass tank connector when I was experimenting with mods to my super reflux still......