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-   -   Pex to sharkbite to galvanized? (https://www.diychatroom.com/f7/pex-sharkbite-galvanized-370074/)

Mikeron 02-22-2016 03:38 PM

Pex to sharkbite to galvanized?
 
Can pex be fitted to galvanized pipe via a straight sharkbite coupling?

joecaption 02-22-2016 03:54 PM

Simple answer, no.
Main reason is brass in direct contact with steel will corrode.
One way around it if you you used a galvinzed coupling, dielectric nipple then a FPT to Pex fitting.
Should be getting rid of every inch of galvinized you can. It's all going to leak at some point and close up on the inside.

TheEplumber 02-22-2016 05:04 PM

199 Attachment(s)
Quote:

Originally Posted by Mikeron (Post 3042178)
Can pex be fitted to galvanized pipe via a straight sharkbite coupling?

Sharkbites are not sized for galvanized pipe. The diameters are different. You need threads.
Brass is generally accepted to connect to galvanized pipe as dialects unions cannot be concealed

ben's plumbing 02-22-2016 07:16 PM

did you get the answer you were looking for...

Tally Wacher 02-24-2016 10:51 AM

There will be a very small galvanic current which will very slowly cause the galvanized pipe to corrode. Shark bites do come in threaded applications so that pex can be joined to galvy. Knowing the risks, I would have very little concern about doing this and would expect it to last years.

rjniles 02-24-2016 01:33 PM

Quote:

Originally Posted by Tally Wacher (Post 3049305)
There will be a very small galvanic current which will very slowly cause the galvanized pipe to corrode. Shark bites do come in threaded applications so that pex can be joined to galvy. Knowing the risks, I would have very little concern about doing this and would expect it to last years.

You need a threaded end on the galvy for that application.

ben's plumbing 02-24-2016 02:57 PM

best to get rid of the galvanized pipe...

Tally Wacher 02-26-2016 12:54 AM

It is a given, you will need to rent a threader.


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