Galvanized Pipe To Copper Pipe Connection

The easiest way to connect the copper and galvanized pipes is to use your wrench and unscrew the galvanized piece from the connecting threads.

Galvanized pipe to copper pipe connection.

It is possible to connect a copper pipe fitting to a galvanized steel pipe. When you join pipes made of dissimilar metals the 2010 california plumbing code requires you to do it with a dielectric union. When connecting a copper pipe fitting to a galvanized steel pipe you must use a dielectric fitting. The dielectric fittings commonly available in home centers photo 1.

When water runs through pipes that are made of two different metals it creates an electrical charge that can cause corrosion and leaks in the pipe. To limit this problem make the steel copper connections with special dielectric unions rather than with a regular coupling. The problem with galvanized pipe is that it reacts with the minerals in the water supply. The reaction creates scale which will eventually clog the pipe.

Eventually galvanized pipe will have to be replaced and when that happens your choices are to replace it with more galvanized pipe copper pipe or plastic pipe. Whenever you join copper water lines to galvanized steel pipe you should be concerned about the corrosion caused by joining two dissimilar metals called galvanic corrosion an electrochemical reaction occurs that causes the steel pipe in this case to rust and clog up. Next connect copper pipes together until you reach the galvanized pipe threads. Sweat on the copper part of the dielectric fitting which is threaded coat all the threads with tape or pipe compound and.

This will keep the.