Dielectric Union Stainless Steel To Brass

Union adapters for galvanized steel threaded pipe join copper tubing to galvanized threaded connections on hot water heaters.

Dielectric union stainless steel to brass.

I work for a commercial hvac company. Watts series lf301 1 1 2 in. Dielectric flanges are installed between pipes made from dissimilar metals to help prevent accelerated deterioration and corrosion. For technical drawings and 3 d models click on a part.

I would like to utilize best practice here but i don t know which is better between the two. Each includes a union nut 2 tailpieces and a gasket. However the chicago plumber installing the stainless steel and brass pipes and fittings needs to pay attention to which types of stainless steel he or she is using. Female threaded dielectric union.

Female threaded dielectric union. They are ideal for use in air and water conditioners hot water storage tanks processing tanks and steam gas and water piping. Fipt 250 psi a105 forged steel dielectric union. The fittings are stainless mail nipples at the water heater indirect loop going to the copper piping to from the boiler.

I am wondering if using a brass and or cast bronze fitting or valve can effectively prevent electrolysis from happening. Stainless steel plumbing pipes and brass plumbing pipes within the same system stainless steel pipes and brass pipes and fittings work together better than stainless steel and copper. It is installed between pipes made from dissimilar metal. Difference between dielectric union and brass basics.

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. Zurn wilkins 2 1 2 x 2 1 2 in. The manufacturer s rep say they don t care between brass and di electric unions. We connect copper to steel using dielectric unions typically.

We explain the effect of galvanic corrosion at copper to steel pipe connections and we include notes on the recommendation for a jumper wire across dielectric fittings or. Copper tube size is the accepted designation of the copper tubing industry not the actual tube od. 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. A dielectric union is a special adapter or fitting used in the piping systems of different metals to isolate the connection of the dissimilar metals.

Flanged fip brass dielectric union. An elastomeric rubber gasket seals the connection between the two metals preventing any water leakage of sort. This article describes the building code and practical requirements for a dielectric fitting when connecting copper piping to steel pipes or steel fittings such as at the top of a water heater. To order call 800 769 0503.