by bradsgonetrekkin » Sun Aug 07, 2011 3:25 pm
I've just had a crack at making a coil for my reflux column build.
Its 1/4 inch annealed copper, double coiled and ended up being around 240mm long. I used probably just under 4m of copper from the roll.
I used an old broomstick as a mandrel in the vice (around 25mm), marked the length I wanted, added a screw and a few zip ties later I was on my way.
It aint pretty or perfect, but hopefully it will do the job. The copper has a couple of slight indents from turning but hopefully the water will still get through it ok to do the job.
Yeah I know the shed is a right off at the moment with lots of empty bottles, but hopefully for not much longer. Fingers crossed I get my leg out of plaster on Wednesday!! :oops:
And the funky green liquid in the tub on the floor is a couple of recycled 65mm copper pipes having a vinegar/water bath to help clean out any crud from inside before they get put together.
When fitted to the column the coil will finish around 40-50mm above the offtake tee.
Next question, what are you guys using for fittings from 1/4 inch copper to connect to a standard hose cooling and outlet line? I'm using mains supply water at the moment, so pressure is pretty good.
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Last edited by
bradsgonetrekkin on Fri Feb 10, 2012 5:41 am, edited 1 time in total.