Author Topic: butterfly vs. ball  (Read 3158 times)

Offline hopfenundmalz

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Re: butterfly vs. ball
« Reply #15 on: January 09, 2013, 12:54:50 PM »
That pictures reminds me of strata along the Colorado river.
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Offline punatic

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Re: butterfly vs. ball
« Reply #16 on: January 09, 2013, 01:13:59 PM »
Well ya didn't specify an application, Tom.   ::) 
I figured on a brewing forum the range of applications would be understood ;D

Different valves for different jobs.  Recirculation, heat exchange, filtering, fluid transfer, trub removal/yeast harvesting, gas pressure control, CIP, keg cleaning...   
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Offline weithman5

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Re: butterfly vs. ball
« Reply #17 on: January 09, 2013, 01:35:39 PM »
Well ya didn't specify an application, Tom.   ::) 
I figured on a brewing forum the range of applications would be understood ;D

Different valves for different jobs.  Recirculation, heat exchange, filtering, fluid transfer, trub removal/yeast harvesting, gas pressure control, CIP, keg cleaning...

ugh.  brings back old submarine memories.  i used a hemostat on some tubing when i was experimenting with a heat exchanger if you look at the bottom you will see it in action

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Offline mabrungard

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Re: butterfly vs. ball
« Reply #18 on: January 09, 2013, 02:05:44 PM »
I hope that wasn't your water system Martin!

Just one of my clients on the Mississippi River with a really old water system.  They have all kinds of problems they are dealing with.  They have a lot of old cast iron pipes that are prone to failing in this cold weather.  They had a 1.5 MGD leak last week that it took several days to find. 
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Offline conley

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Re: butterfly vs. ball
« Reply #19 on: January 09, 2013, 04:58:49 PM »
What do you think are the relative merits between butterfly and ball valves?

I figure the butterfly valve is easier to clean, but the ball is less likely to get clogged.  Anything I'm missing?

How about this for a clog? 


That is a 24" butterfly valve that was located just downstream of a sodium hydroxide injection point in a water system.  The NaOH was added to control corrosion potential in the distribution system.  Unfortunately, the caustic did not mix well in the pipe and it precipitated the deposits in the pipe and on this valve.  I would expect that the deposits were calcium carbonate (chalk), but the high OH concentrations actually caused calcium hydroxide (lime) to deposit instead. 

This isn't really applicable to this discussion, but I figured some might enjoy the mysteries of water chemistry (when done wrong).

that's when you call something art and sell it for some more brewing equipment.

Offline punatic

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Re: butterfly vs. ball
« Reply #20 on: January 09, 2013, 05:52:11 PM »
I hope that wasn't your water system Martin!

Just one of my clients on the Mississippi River with a really old water system.  They have all kinds of problems they are dealing with.  They have a lot of old cast iron pipes that are prone to failing in this cold weather.  They had a 1.5 MGD leak last week that it took several days to find.

A 1000gpm leak took them days to find?  A valve was that scaled up and they didn't notice a drop in flow?  Sounds like their biggest problem is their operators.
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Offline weithman5

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Re: butterfly vs. ball
« Reply #21 on: January 10, 2013, 01:49:11 PM »
   They had a 1.5 MGD leak last week that it took several days to find.

ASounds like their biggest problem is their operators.
[/quote]

Miller Genuine Draft?  I think the operators might be drinking
Don AHA member