Keggle stainless fitting.

[Bender]

Is this the correct fitting to be welded to a keggle?

http://www.mcmaster.com/#4464k224/=4lqp1p

 

[Half-wheel-hell]

only if you do not plan to thread something from the inside of the keg, and also something from the outside of the keg. I used that fitting for my thermometer opening, but not for my ball valve, since I use another male NPT from the inside for the false bottom. I used a regular coupling at the valve, and half (like the link) for the sight and thermomter. You can really use a Tee (on the outside) and combine your sight glass and thermometer. I would do that if I were to start over.

 

[Bender]

I was planning for a sight valve and thermometer, but I also need a valve and strainer so I'll also need a fitting with inside threads. I guess this is it.

http://www.mcmaster.com/#4464k214/=4lrk9v

 

[mordantly]

get it tig'd with 316L rod.

 

[Bender]

get it tig'd with 316L rod.

Thanks. I notice that all of these parts come in 304 and 316 steel. Does this mean I should be buying the more expensive 316 parts?

 

[Half-wheel-hell]

It doesn't reall matter. 304 an 316 can be welded together. Maybe Mordantly knows more on the subject, but I know there is very little difference for beer making purposes and welding. You could also order from http://www.buyfittingsonline.com/Fittings/cat355_1.htm - i'm not affiliated.. it's just where I ordered from.

http://www.weldlessfittings.com/kettlefittings.html
again - not affiliated... but down a ways on this page is the concpet of combining sight glass and thermomter (with a tee)... one less weld.

 

[BargainFittings]

Is this the correct fitting to be welded to a keggle?

http://www.mcmaster.com/#4464k224/=4lqp1p

A full coupling would allow you to attach fittings inside and out.

Some people use a nipple instead of a coupling.

 

[Brewers Hardware]

316 is more corrosion resistant than 304. They can be welded together and both are fine for brewing. 316 is often referred to as "marine grade" and is better suited for salt water environments. I mostly use 304 and your keg is probably 304/304L anyway.

The only caveat is to use filler the same or higher than the base metal. 309L is the the most common filler rod for SS but if you were welding 316 to 316, you would want to make sure to use 316 filler, not 309.

I'd recommend fulll couplings from Bargainfittings.com so you have the option of threading something inside should you ever decide to later. Since you're welding it in, why limit your future options?