Dielectric Unions

What is stray current?

Stray current produces a high number of anodes & cathodes that can inadvertently enter an alternate (but unintended) path and create corrosion in the piping system.

What is the function of tailpieces in a dielectric union?

Tailpieces allow connecting ends of two dissimilar pipe systems so that liquid can be safely transported with minimal leakage.

How does the dielectric union break continuity?

When dielectric unions are connected between two dissimilar pipes, they ground the electric current and break continuity for complete insulation between the two environments.

How to install a dielectric union between steel and copper pipes?

• Wrap several layers of sealing tape over the threads of the steel pipe.
• Connect the threaded end of the dielectric union to the steel pipe and turn it clockwise using a pipe wrench.
• Slide the union nut over the end of the copper pipe and place the plastic insulator over the copper pipe.
• Install the copper solder adapter onto the copper pipe and sweat adapter using a propane torch.
• Allow the pipe to cool.
• Quickly slide the rubber gasket between the union nut & body and assemble it.
• Inspect to ensure a watertight connection.