Dissimilar Metals Connection
Dissimilar Metals Connection
(OP)
It is generally recommended to install dielectric unions/couplings when connecting two dissimilar metals (steel pipe to copper pipe).
I was told that Brass Nipple generally does the same thing as a commercially available dielectric union, is this true?
My application is to tie in a 2" copper pipe into a 6" epoxy coated carbon steel pipe. Any suggestion to avoid corrosion issue?
I was told that Brass Nipple generally does the same thing as a commercially available dielectric union, is this true?
My application is to tie in a 2" copper pipe into a 6" epoxy coated carbon steel pipe. Any suggestion to avoid corrosion issue?





RE: Dissimilar Metals Connection
A flanged connection is acc. to me better than couplings.
I don´t see how you can get a good connection; liner with couplings.
RE: Dissimilar Metals Connection
-- No
RE: Dissimilar Metals Connection
We now specify either dielectric couplings with non-conductive polymer liner made by Victualic, Gruvlok or Lochinvar or we specify a flange fitting with insulating materials.