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Old 03-08-2013, 05:53 PM   #91
Golddiggie
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Quote:
Originally Posted by ScubaSteve View Post
A single SS ball bearing should work well for the valve...look inside a spray bottle for inspiration...

Large sized balls are often sold as "hunting shot" for a slingshot.
It would have to be hollow since a solid one would be too heavy.

Right now I'm focusing on making the fitting to go into PET carboys that will make it easy to transfer with a CO2 push.
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Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
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Old 03-08-2013, 09:50 PM   #92
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Delrin would be a good choice...maybe even some of the high durometer rubbers....

 
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Old 03-08-2013, 09:59 PM   #93
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Quote:
Originally Posted by ScubaSteve View Post
Delrin would be a good choice...maybe even some of the high durometer rubbers....
I have some delrin round on hand already. Once I start working again, I plan on getting the lathe tool that will allow me to create balls/rounds. I might make the tube ends out of PTFE stock. Or something that can handle temperatures above 220F. I could use the same material for the top end of the outer tube (to guide the cane).
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Hopping Tango Brewery

跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se

On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
Fermenting
K1:
K2: Epic mead
K3: TripSix
On Deck: Caramel Ale
Aging:mead
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine

 
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Old 04-20-2013, 07:43 PM   #94
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Golddiggie,

If you (or anyone else) ever builds one of these, send me a PM if you're interested in selling one.
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Old 04-21-2013, 06:43 PM   #95
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Delrin is a poor choice as it is not as dimensionally stable as other polymers. Delrin is one of the worst polymers with respect to water absorption, but it has gotten better over the years. Still, other materials are better. Skip the delrin and thank me later.

http://www2.dupont.com/Plastics/en_U...ign/DELDGe.pdf

Page 15

 
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Old 04-26-2013, 04:24 PM   #96
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I'm still thinking about this. I'm also working on a way to use a CO2 push (easily) with PET carboys. Just need to drill a pair of holes into the first unit to see how it works. Need to test it to ensure that it comes out of the carboy before the pressure inside gets too close to tolerances.
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Hopping Tango Brewery

跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se

On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
Fermenting
K1:
K2: Epic mead
K3: TripSix
On Deck: Caramel Ale
Aging:mead
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine

 
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Old 02-18-2014, 06:53 PM   #97
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Here is mine. Designed and fabricated in 8 days. Stainless and teflon/PTFE.

It pumps 5G in 2 minutes and 36 seconds. Likely not gentle enough for fermented beer, but I made this for no-chill specifically.
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Old 02-18-2014, 06:58 PM   #98
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Quote:
Originally Posted by Conestoga View Post
Here is mine. Designed and fabricated in 8 days. Stainless and teflon/PTFE.

It pumps 5G in 2 minutes and 36 seconds. Likely not gentle enough for fermented beer, but I made this for no-chill specifically.
Pretty sweet. You make it yourself? Total cost?

And why would fermented beer need to be handled gently? Other than oxygen exposure?

 
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Old 02-18-2014, 07:10 PM   #99
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Quote:
Originally Posted by kerklein2 View Post
Pretty sweet. You make it yourself? Total cost?

And why would fermented beer need to be handled gently? Other than oxygen exposure?
Yes, simply oxygen exposure.

Total cost was free, I do all the CAD work and programming for a CNC department. I have full access/control and lots of experience on all of the machinery. We were slow, and somebody on another forum gave me the idea. I used materials that were in stock, and not used in over 8 years. I figured they wouldn't miss it.

 
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Old 02-18-2014, 07:16 PM   #100
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I'd love prints if you can PM them to me. I'd love to do some machining.

 
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