dielectric fitting

dielectric fitting

dielectric fitting
In a water supply system, a special type of adapter (such as a union) used to connect a pipe containing copper with a pipe containing iron; used between dissimilar metals
References in periodicals archive ?
Dielectric fitting parameters and calculated rigid amorphopus fraction of the neat PLA and its nanocomposites.
* If you have galvanized steel pipe and must make a transition to copper, install a special dielectric fitting (about $5; Photo 5) to prevent corrosion.
Then insert a dielectric fitting (Photo 5) and convert to copper pipe and fittings all the way back through to the sill cock.
5 DISASSEMBLE the dielectric fitting and solder one end to a 6-in.
Where connections are made between dissimilar metals, provide dielectric fittings to prevent electrolytic corrosion.
Using different metals in a heating or air-conditioning piping system does not mean that galvanic corrosion will cause a failure, nor does it mean that dielectric fittings must be used at transitions between materials.
* For potable water systems, dielectric fittings should be used when connecting hot water tanks and heat exchangers and at-grade penetrations along with lightning protection to protect from external corrosion.
The dielectric fittings commonly available in home centers (top photo) have a (much shorter) plastic nipple that keeps the metals from touching, but the metals are still close enough to cause a reaction and corrosion anyway.