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Old 10-15-2013, 05:23 PM   #1
RadicalEd
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Default DIY 'conical' dumb questions

Hey all--

I've scored a couple BIG (~40 gallon) dairy collectors from a club member, with the intent of using them as 'conical' fermenters. 316 stainless, wut wut!

Buuuut, before I go ordering all the requisite bits and pieces (and inevitably getting it wrong) I'd appreciate a 'dumb check' on a few things:

1. Can I get away with a threaded ball valve, or do I reaaaaaally need to go with a butterfly valve? Reason I ask is that a ball valve can be had for about $13, whereas a butterfly valve is rocking $47 at brewershardware...plus all the triclover bits you need to go with it.

2. Fitting sizes: the male fitting at the bottom of the tank measures a hair over 1" across the threads; that makes it a 3/4" fitting, correct?

The fittings on the side of the tank are greater than 5/8 but less than 3/4; these are 3/8?

3. Given those dimensions, where on earth can I order a 3/8" thermowell? Most all I can see are 1/2".


In return for your help, I promise to post up a thread with pretty pictures!

Thanks in advance!

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Old 10-16-2013, 06:17 PM   #2
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Post a pic!
What degree of slant are on the sides of the tanks?

I think I remember reading that 50 degrees is the magic number, with steeper probably being better.

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Old 10-16-2013, 11:04 PM   #3
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Welllll, that's the thing. They are curved at the bottom, hence the quotations marks around 'conical' . But certainly better than flat! As far as I'm concerned, if I can empty it out from the bottom portion, it's a success. I've fermented on trub many an occasion .

Of course, I could just put in a separate thermowell bulkhead and then use the existing side fitting for an arm, but that would require effort!

Here's a pic of them in my garage, to get the ideas flowing. Note I was backed up against my car and lifting the camera over my head at this point...these things are monsters!



Here's a picture of the hoops that they sit in. They are made to be wall mounted, but considering I conservatively estimate a 500 lb load, I don't think any of my walls are sturdy enough. Instead I'm building some superstrut supports for them.

img_20131014_214536_997.jpg   img_20131014_214557_490.jpg  
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Old 10-18-2013, 11:37 PM   #4
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*Zoidberg voice*

Answers, maybe?

*AKA shameless bump*

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