Dielectric Union Installation

A dielectric union fitting is one which is often used in water supply lines and other connections which require an adapter to be placed between two different pipes the adapter is used to connect pipes of different types together for example a copper pipe and iron pipe.

Dielectric union installation.

The adapter serves to hold both pipes together preventing leaking and other kinds of damage. Copper and galvanized steel plumbing pipes don t mix. The installation of a fitting with inert material between the two metals prevents the flow of electrons between the metals preventing premature failure of the piping traditionally dielectric unions see pictures at right have been installed to perform this function. Dielectric flanges are installed between pipes made from dissimilar metals to help prevent accelerated deterioration and corrosion.

They are ideal for use in air and water conditioners hot water storage tanks processing tanks and steam gas and water piping. Plumbermandan ia i checked today with my main 4 suppliers in iowa one in mo and 4 in denver co area 2 in iowa can get them 2 have them in stock mo has them and 2 in denver have them in stock 1 can get them and one didnt even know what i was talking about. Unions on black gas pipe. Each includes a union nut 2 tailpieces and a gasket.

How to install a dielectric union on an electric water heater. Sweat connections are permanent so when you need to be able to separate the pipes as you do when they are connected to a removable appliance like a water heater you need to install a union. The usual way to attach fittings to copper pipe is to sweat them which means soldering with lead free solder. 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.

How to install a dielectric union connecting copper and black pipe. We offer dielectric unions in a range of configurations sizes and materials. Common mistakes in hot water heater installation.