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Old 03-16-2013, 05:56 PM   #81
AllanMar
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Jun 2008
Canada
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Your planning to sell them with position control capability also?

If I was doing it again I would put a 3pc ball valve on the outlet of each pump for flow control and everything else would be butterfly.



 
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Old 03-16-2013, 07:53 PM   #82
mattd2
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Sep 2009
Papamoa, New Zealand
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Quote:
Originally Posted by AllanMar View Post
Your planning to sell them with position control capability also?

If I was doing it again I would put a 3pc ball valve on the outlet of each pump for flow control and everything else would be butterfly.
Why not butterfly on the pumps too? Better linearity (if that's a word ) than a ball valve.



 
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Old 03-16-2013, 08:26 PM   #83
AllanMar
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Jun 2008
Canada
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Quote:
Originally Posted by mattd2 View Post
Why not butterfly on the pumps too? Better linearity (if that's a word ) than a ball valve.
Yea thats true.

I used a NPT 3pc ball valve and a TC 3pc ball valve to make 2x NPT to TC ball valves. I liked this setup so I pictured sticking with it (didn't want to modify the pump). A butterfly valve would work too.

 
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Old 03-25-2013, 03:28 PM   #84
kickflip_mj
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Jan 2008
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Allan, Can I see what valve you have built?

 
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Old 03-25-2013, 09:18 PM   #85
AllanMar
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Jun 2008
Canada
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Quote:
Originally Posted by kickflip_mj View Post
Allan, Can I see what valve you have built?
I backed away from doing motorized valves and went with TriClamps, so I doubt it's much help to you. My work in progress is here:
http://www.homebrewtalk.com/f170/sin...-build-372976/
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Old 03-25-2013, 11:18 PM   #86
kickflip_mj
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Jan 2008
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I love the brewery! great job so far

I went with 8 motorized valves. They are a little custom from the manufacturer. Just 2NM force over 1nm that people normally get. I didnt want to deal with stuck valves. But at the moment im working on integrating actuators with TC butterfly valves. When I get the stand completed I will post pictures of all the crazy amount of TCs and stainless I have.

 
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Old 03-25-2013, 11:57 PM   #87
AllanMar
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Jun 2008
Canada
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Thanks. Motorized TC butterfly would be my ideal. I'd love to see what you come up with eventually.

 
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Old 04-01-2013, 08:47 PM   #88
marcb
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Apr 2012
Santa Clara, CA
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Ok, any progress? Planning my valve purchases for the new system!

 
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Old 04-03-2013, 04:06 PM   #89
kickflip_mj
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Jan 2008
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No progress on the valves, I have purchased 3 different ones all 1 inch tri. I own the economy, 3 peice, and butterfly and they are all really hard to turn. definitely over 10nm. But don't lose faith I am working on them diligently along with moving this week.

 
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Old 04-03-2013, 04:34 PM   #90
kickflip_mj
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Jan 2008
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I think a lot of my problems are because I cant seem to find out how much force it takes to turn this valve. Not that I cant do the math but their are zero specs out their.



 
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