Beer faucet thread pattern?

[ttolzien]

I’m looking to attach a faucet like this to galvanized pipe. The thread is very close to 3/4” but will not thread into my pipe. Does anyone have any suggestions on how to fit this to galvanized plumbing pipe??

 

[FloppyKnockers]

I'm pretty sure that copper threads would fit our faucets. So you would need a copper fitting, a dielectric union, then the galvy. Curious question. Why would you want to fit a beer faucet to galvanized pipe?

 

[lump42]

If you are talking about the handle. Based on the sites below, I would guess that the thread size is 3/8"-16 UNC (Unified Coarse Thread).

https://www.micromatic.com/accessories/tap-marker-angler-mp-064
https://www.atlanticbrewsupply.com/Tap-Handle-Adapter-38-16_p_1890.html
https://www.kegworks.com/threaded-fitting-for-draft-beer-faucet-tap-handles


For the faucet coupling side, 1-1/8"-18 Thread (U.S. Beer Industry Standard)
https://www.micromatic.com/draft-keg-beer/taps-faucets-parts-pid-4332.html

If you are looking to extend the faucet run, I would not use galvanized piping. The acidity of beer or wine will strip the zinc coating off and then start rusting the steel. For the look of galvanized pipe, get a larger size pipe, drill appropriate hole in a pipe cap, and use a tower shank. then the beverage is running through beer line and not touching the galvanized metal.

 

[ttolzien]

If you are looking to extend the faucet run, I would not use galvanized piping. The acidity of beer or wine will strip the zinc coating off and then start rusting the steel. For the look of galvanized pipe, get a larger size pipe, drill appropriate hole in a pipe cap, and use a tower shank. then the beverage is running through beer line and not touching the galvanized metal.[/QUOTE]


I’m making an industrial whiskey dispenser - whiskey is very alkaline and shouldn’t strip the finish.

 

[lump42]

Whiskey is acidic and will strip the zinc out. The alcohol will be extracting a lot of organic acids from the wood. The older the whiskey the more acidic it will be. I would suggest using food-grade materials for this project. Based on this article in the Journal of Food Science (older but still valid for pH ranges), whiskey ranged from 3.68 to 5.06 from 184 samples.

https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2621.1943.tb16564.x