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Water heater dielectric union.
Free delivery with 45 order.
You need to use.
If either the tank nipples or the pipes are galvanized steel however and you are connecting them to copper you must use a fitting called a dielectric union to make the connection.
Ron hasil lic 058 160417.
This fitting is utilized to transition between steel and copper piping with a maximum operating pressure of 250 psi and 180 degrees fahrenheit.
In order to prevent this plumbers join copper pipes to galvanized steel ones with dielectric unions which are fittings with nonmetallic washers that keep the pipes separated.
The home depot can install your new water heater within 24 hours.
Dielectric unions 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.
It is installed between pipes made from dissimilar metal.
Dielectric unions were developed for use on electric railway lines and for the underlaying of undersea cables and at about the same time for preventing electrolytic corrosion at the connection of water meters to building water piping.
Select 2 to 4 items.
Water is the electrolyte and the combination of two metals and water essentially becomes a battery.
The gasket is made with silicone rubber and a nylon insert.
Galvanized can be hooked directly to the water heater just fine.
When copper and steel pipes are connected which happens often at the fittings near a water heater an electrolytic reaction begins.
Dielectric unions are used to join pipes made from different metals to prevent accelerated corrosion in the piping system.