Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > Sterile Welding Ball Valve
Reply
 
LinkBack Thread Tools
Old 08-18-2012, 07:03 PM   #1
ctharris
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2012
Location: Fayetteville, Arkansas, United States
Posts: 1
Default Sterile Welding Ball Valve

I'm sure this has been asked before, but I can't seem to find an answer to my specific question. Here goes:

I bought a stainless steel 10.5 gallon brew kettle and want to add a stainless 1/2" ball valve. I've heard mixed reviews of the weldless add-on valves and my neighbor (a plumber and steelworker) has offered to weld one onto my kettle for me instead. However, I've read that you need to be careful to have a sterile weld. Does "sterile" refer to eliminating any places for microbes to hide near the weld site (i.e., a smooth weld) or does "sterile" mean something else?

Thanks in advance for the help!

A Newbie

__________________
ctharris is offline
 
Reply With Quote Quick reply to this message
Old 08-18-2012, 07:12 PM   #2
Maxkling
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2010
Location: Atlanta, Georgia
Posts: 553
Liked 28 Times on 15 Posts
Likes Given: 1

Default

Its sanitary welding, where you use a back purge and a few different techniques. Your boil kettle does not need to be welded this way.

If you are modifying a fermenter or anything that touches your beer after it is cooled then it is recommended to use sanitary welding techniques.

__________________

Denny Conn - “The best beer possible with the least effort possible while having the most fun possible!”

Me - "Gun Control Means Using Both Hands."

Maxkling is offline
 
Reply With Quote Quick reply to this message
Old 08-18-2012, 08:04 PM   #3
sr20steve
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Discovery Bay, Ca
Posts: 103
Liked 13 Times on 9 Posts
Likes Given: 8

Default

When you get your fittings welded on just purge the rear of the weld, or you can do what I do instead of wasting argon to fill the kettle and welding it out of position. I use solar flux B on the back side of the weld after I put a small tack to hold it in place. I welded the first one without. It would be nice to be able to make a copper ring on the backside of the weld, that would make life soo much easier and you wouldn't have the carbide precipitation from no purge.

__________________
sr20steve is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Welding ball valve coupler on Keggle cjham9985 Kettles, Mash Tuns, & Hot Liquor Tanks 6 04-28-2011 08:27 PM
Leaky ball valve Arneba28 Kettles, Mash Tuns, & Hot Liquor Tanks 2 03-18-2011 04:55 AM
Opinions On Ball Valve, Gate Valve, Or Globe Valve For March Pumps jcav Brew Stands 13 10-16-2010 04:56 AM
ball valve on aluminum HLT and BK? SkyWalker Kettles, Mash Tuns, & Hot Liquor Tanks 10 05-17-2010 01:50 AM



Newest Threads

LATEST SPONSOR DEALS