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Galvanic Corrosion

Galvanic Corrosion

Galvanic Corrosion

(OP)
I have an existing 1.25" (I.D.) galvanized steel conduit that I would like to run a 0.75" (I.D.) copper line through and I am concerned that there may be some Galvanic Corrosion if the copper line sweats. The copper line is carrying water. Has anyone donethis before and if so have you had a problem with Galvanic Corrosion and/or do you have any reccomendations on protective coatings (tape,insulations, paints) that may be usefull. Or should I just switch to plastic for the service?

Thanks for the help.

RE: Galvanic Corrosion

dmx, If your water is in the allowable pressure and temperature ranges, use plastic. You'll find its cheaper than copper.

Hope this helps.
saxon

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