Plastic Ball Valve: Will It Melt During a Boil? - Home Brew Forums
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Old 12-22-2008, 05:22 PM   #1
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So, despite the issues we had with the pelletized hops yesterday, I was thoroughly impressed with Dude's plate chiller/march pump setup. Thing is, I don't want to have to buy/build a keggle. I have a 15 gallon aluminum kettle, but no spigot. I also have a 50L stainless mash tun that someone gave me awhile back. It's got a false bottom, and has a spigot welded into it:



It's hard to see, but the ball valve is made of hard plastic. I have no idea what kind of heat it's rated for, though. But if I were to try to set this up for a march pump/shirron assembly, I'd want to use the stainless kettle as the boil vessel. What do you think? Will the heat from the boil melt the valve?


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Old 12-22-2008, 05:37 PM   #2
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Ball valves are cheap, just get a brass one for under $10.

Having said that, if you make sure there is no heat washing up the front of the kettle you will probably be OK. Set a piece of sheet metal across the front to deflect heat. I do this to keep the handles from melting anyway.



 
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Old 12-22-2008, 05:38 PM   #3
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Me thinks it will. Of course, I'd not care to find out either. Murphy would be sure to keep it intact right up to the point that everything is at a nice rolling boil and then "woosh".

Can the p[lastic not be removed and replaced with an inexpensive brass valve from the hardware store?

Of course, now that I have written that I realize taht even a brass or stainless valve has a plastic bushing for the ball to rotate in so......

 
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Old 12-22-2008, 05:58 PM   #4
conpewter
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You don't have to have a valve to use a pump/plate chiller, just use a SS racking cane or similar to get the wort after you have whirlpooled and let it rest for 20 minutes or so.
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Old 12-22-2008, 07:32 PM   #5
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Quote:
Originally Posted by conpewter View Post
You don't have to have a valve to use a pump/plate chiller, just use a SS racking cane or similar to get the wort after you have whirlpooled and let it rest for 20 minutes or so.
I don't like the idea of my wort sitting near boiling for that long...


__________________
MOSS HOLLOW BREWING CO.
Aristocratic Ales, Lascivious Lagers


.planned:
•Scottish 80/- •Sweet Stout •Roggenbier
.primary | bright:
98: Moss Hollow Soured '09 72: Oude Kriek 99: B-Weisse 102: Brett'd BDSA 104: Feat of Strength Helles Bock 105: Merkin Brown
.on tap | kegged:
XX: Moss Hollow Springs Sparkling Water 95: Gott Mit Uns German Pils 91b: Brown Willie's Oaked Abbey Ale 103: Merkin Stout
98: Yorkshire Special 100: Maple Porter 89: Cidre Saison 101: Steffiweizen '09 (#3)

 
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