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Old 12-03-2009, 08:39 AM   #1
Bru
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I have a stainless steel ball valve welded to a stainless steel kettle which has become stuck with burned sediment that I can't get out.
Ive tried brushing and hot caustic solution which helped but not entirely.
The ball valve can't be removed or dismantled.
Any ideas ?

 
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Old 12-03-2009, 09:35 AM   #2
killian
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I think I would fill the kettle with water bring it to a boil then open the valve and drain. as soon as the liquid stops running hit it with the brush. That might loosen up the gunk
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Old 12-03-2009, 11:15 AM   #3
boo boo
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No great help to you now, but did you weld the valve itself onto the kettle, or did you weld a fitting there that the valve attaches to?
If the fitting is welded, then you can replace the valve if you can't clean it to your liking.
Me, I don't think I would worry about it much as long as it is in effect sterilized when the wort is boiling, and anything that would come out after the boil would drop out before you rack to a fermenter if you wanted.
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Old 12-03-2009, 12:37 PM   #4
Bru
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Ive tried water and then brushing - didn't help much.
The valve is welded to the kettle.
The biggest problem is Ive been having to dump the entire kettles contents into the fermenter because the bv doesn't drain properly.
Im hoping someone has a miracle aggro cleaner I can use.

 
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Old 12-03-2009, 01:09 PM   #5
Hawgbranch
 
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Find a bull plug and screw into the outside of the valve and then open it. Then fill kettle with water and a lot of Oxy Clean and stir. Then leave it alone for several days and see what happens.

 
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Old 12-03-2009, 01:13 PM   #6
Bru
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Good idea ! I will try that.

 
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Old 12-03-2009, 04:34 PM   #7
springer
 
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are you sure the ball valve doesn't come apart? if its like mine I can take it apart to clean. This is the one I have and can be disassembled ..You need two wrenches and some muscle but they will unscrew. How would they get the guts into the valve if otherwise?
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Old 12-03-2009, 04:46 PM   #8
Bru
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I will re-check but the welder pretty much welded everything together when he welded it to the pot.

 
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Old 12-03-2009, 05:05 PM   #9
Bru
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Im going to try Hawgbranch's idea with a strong, hot caustic soda solution.
Ive even tried a high pressure hose from both sides
Any other suggestions appreciated. What eats carbon deposits ? Where all the science nerds ?
I may even try a hydrochloric acid solution unless someone knows a reason I shouldn't.

 
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Old 12-03-2009, 05:22 PM   #10
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For carbon deposits you can use oven cleaner, I don't know if it would hurt the inside of the valve though. Make sure to really clean it afterward.
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