Dielectric Union Copper To Galvanized

We are on a co op water.

Dielectric union copper to galvanized. Each includes a union nut 2 tailpieces and gasket. 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. Plastic liner in this dielectric fitting provides a greater degree of separation to keep the dissimilar metals from corroding. Dielectric unions are used in commercial and residential applications to prevent accelerated corrosion and deterioration in the piping system due to galvanic and stray current.

I have a home that is 7 yrs old in burleson tx. While a dielectric union shown above provides a break in electrical conductivity that theoretically would be best most plumbers prefer a brass fitting. Use in hot water storage tanks hvac units and steam gas and water piping. So the cold water pipe rusted caused a water leak and a lot of damage to my house.

Pinhole in copper water pipe under the slab. For technical drawings and 3 d models click on a part. Was the lack of a dielectric union to connect copper to galvanized steel a code violation in 2005 chicago il. Installing a dielectric union to join these as well as other galvanized pipes in your house to copper requires both wrench and soldering work.

Copper tube size is the accepted designation of the copper tubing industry not the actual tube od. When water flows through pipes of two different metals the pipes will become eroded by electrical impulses from the slight acidity found in all water sources. This fitting joins a copper pipe to a galvanized pipe called a union. We offer dielectric unions in a range of configurations sizes and materials.

Brass is a copper zinc alloy so a brass nipple qualifies as a type of copper alloy fitting that is cited as acceptable by the code. Union adapters for galvanized steel threaded pipe join copper tubing to galvanized threaded connections on hot water heaters. You ll need basic plumbing skills and tools but the most important item you ll need is a dielectric fitting. It is installed between pipes made from dissimilar metal.