On the domestic side as pointed out above stainless and copper are fine together.
Stainless steel dielectric union.
Watts series lf301 1 1 2 in.
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Fip stainless steel dielectric union.
Dielectric flanges are installed between pipes made from dissimilar metals to help prevent accelerated deterioration and corrosion.
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Fipt 250 psi a105 forged steel dielectric union.
Unions separate into three pieces for easy access to your line.
These steel unions are available in a variety of sizes and connection types.
Stainless steel unions are offered from several trusted brand names.
Legend valve fitting 1 1 2 in.
A dielectric class 3000 union with a dielectric coated a105 carbon steel tailpiece that is 3 4 female npt with a 304 stainless 1 2 male npt threadpiece teflon o ring is coded as follows.
Thank you both for the leads.
Union adapters for galvanized steel threaded pipe join copper tubing to galvanized threaded connections on hot water heaters.
We offer dielectric unions in a range of configurations sizes and materials.
It is installed between pipes made from dissimilar metal.
Female threaded dielectric union.
Copper tube size is the accepted designation of the copper tubing industry not the actual tube od.
We avoid them like the plague.
Fip stainless steel dielectric union.
Each includes a union nut 2 tailpieces and a gasket.
They are ideal for use in air and water conditioners hot water storage tanks processing tanks and steam gas and water piping.
Choose from standard unions and dielectric unions.
The website was very helpful and it appears as though the joint between copper pipe v 0 35 and stainless steel pipe 304 ss has 18 chromium content so v 0 50 will not require a dielectric union since the differnece is only 0 15.
Female threaded dielectric union.
Legend valve fitting 1 1 4 in.
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.
This article describes the building code and practical requirements for a dielectric fitting when connecting copper piping to steel pipes or steel fittings such as at the top of a water heater.
If there is a genuine need for dielectric isolation a foot or two of pex or aquatherm will do the job far better.
For technical drawings and 3 d models click on a part.