Why not galvanized?

Joe Brix

fail in just a few years. I don't think you need heat. Water PH and chlorides will do just as well.

John Van Hoesen

Just Curious...

I'm just wondering if anyone can explain the chemistry or theory behind not using galvanized plugs/nipples in steam boilers? I know many articles I've read say not to, but I'm just curious why...

Thanks!
J~

kevin coppinger_4

one word....

Zinc. The coating can/will flake off and cause problems with the boilers ability to make steam. kpc

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John Van Hoesen

Cool...

Thanks Kevin -

My understanding was that this galvanic corrosion only occurs at high-pressure and temps above 250F... Not that it's worth taking the risk, just trying to understand the reasons behind the suggestions.

J~

Jake Timmerman_2

Can you use galvinized pipe for hot water boilers?