Dielectric Union For Fcu
We are on a co op water supply.
Dielectric union for fcu. The dielectric union achieves this insulation by a plastic insert located between the two parts of the fitting. Plumbing codes in all states require the use of dielectric unions when connecting dissimilar metals. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. I recently had a pin hole in my copper water pipe under the slap.
Bi metal fittings typically consist of brass and steel halves for connecting similarly differing pipe types. It is installed between pipes made from dissimilar metal. Dielectric unions are use to join pipes made from dissimilar metals to avoid electrolysis which leads to corrosion and pipe failure. A dielectric union has an additional plastic or non conductive fiber sleeve which surrounds the brass part of the fitting and a washer to form a flange barrier.
For technical drawings and 3 d models click on a part number. Shop for dielectric union at ferguson. Was the lack of a dielectric union to connect copper to galvanized steel a code violation in 2005 chicago il. Pinhole in copper water pipe under the slab.
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. We offer dielectric unions in a range of configurations sizes and materials. This union is made from galvanized steel and lead free brass. A dielectric class 3000 union with a dielectric coated a105 carbon steel tailpiece that is 3 4 female npt with a 304 stainless 1 2 male npt threadpiece teflon o ring is coded as follows.
Dielectric flanges are installed between pipes made from dissimilar metals to help prevent accelerated deterioration and corrosion. I have a home that is 7 yrs old in burleson tx. Each includes a union nut 2 tailpieces and a gasket. Union adapters for galvanized steel threaded pipe join copper tubing to galvanized threaded connections on hot water heaters.
If you have not already received a logon id and security code enroll now for access. Copper tube size is the accepted designation of the copper tubing industry not the actual tube od.