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Old 05-13-2010, 08:40 PM   #1
SkyWalker
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Default ball valve on aluminum HLT and BK?

getting materials ready for my first AG batch


bare with me if this is a dumb question..

can i do a DIY weldless ball valve on an aluminum pot? if not, can a brass ball valve be welded on? is that even possible?

i have 60qt and 30qt aluminum boiling pots at my house that i would like to dedicate to my brew rig, but would rather not be picking them up and pouring scalding hot liquid through each stage..

any help would be appreciated



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Old 05-13-2010, 08:44 PM   #2
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A weldless ball valve works fine. Stainless is preferred. Can't weld brass to aluminum AFAIK. A step bit works great for drilling the hole.



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Old 05-13-2010, 08:45 PM   #3
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Quote:
Originally Posted by SkyWalker View Post
getting materials ready for my first AG batch


bare with me if this is a dumb question..

can i do a DIY weldless ball valve on an aluminum pot? if not, can a brass ball valve be welded on? is that even possible?

i have 60qt and 30qt aluminum boiling pots at my house that i would like to dedicate to my brew rig, but would rather not be picking them up and pouring scalding hot liquid through each stage..

any help would be appreciated
Absolutely. Just go weldless, use the step drill bit mentioned above, and you are set.
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Old 05-13-2010, 08:49 PM   #4
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Bargain fittings is a good place to go and he is on these forums often.

http://www.bargainfittings.com/

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Old 05-13-2010, 08:57 PM   #5
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awesome thanks for the quick replies

Quote:
Originally Posted by dkershner View Post
Bargain fittings is a good place to go and he is on these forums often.

http://www.bargainfittings.com/
i see these kits are NPT fittings.. what does that mean/stand for? i work at the home depot and i know we have brass fittings that look just like those, but none of the labels say NPT
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Old 05-13-2010, 09:00 PM   #6
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also one more question, by using a washer between the pot and the ball valve, will there be a chance of damaging the pot when tightened because it's round?

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Old 05-13-2010, 09:31 PM   #7
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awesome thanks for the quick replies



i see these kits are NPT fittings.. what does that mean/stand for? i work at the home depot and i know we have brass fittings that look just like those, but none of the labels say NPT
National Pipe Thread
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Old 05-13-2010, 10:34 PM   #8
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NPT = National Pipe TAPERED.
NPS = National Pipe Straight.

Most say national pipe thread as its assumed its tapered. The pipe fittings at home depot are low pressure NPT threaded.

You will only flatten around the hole in the pot if you torque down on it very hard.

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Old 05-13-2010, 11:07 PM   #9
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thank you!

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Old 05-14-2010, 02:32 PM   #10
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go with the weldless from bargainfittings I have them on the HLT and BK never any leaks or issues



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