Sweat connections are permanent so when you need to be able to separate the pipes as you do when they are connected to a removable appliance like a water heater you need to install a union.
Dielectric union installation.
How to install a dielectric union connecting copper and black pipe.
Common mistakes in hot water heater installation.
The usual way to attach fittings to copper pipe is to sweat them which means soldering with lead free solder.
Copper and galvanized steel plumbing pipes don t mix.
When you buy a new water heater it s important to gauge your hot water needs accurately so that you get a heater large enough to supply them.
Each includes a union nut 2 tailpieces and a gasket.
Plumbermandan ia i checked today with my main 4 suppliers in iowa one in mo and 4 in denver co area 2 in iowa can get them 2 have them in stock mo has them and 2 in denver have them in stock 1 can get them and one didnt even know what i was talking about.
They are ideal for use in air and water conditioners hot water storage tanks processing tanks and steam gas and water piping.
Dielectric flanges are installed between pipes made from dissimilar metals to help prevent accelerated deterioration and corrosion.
The installation of a fitting with inert material between the two metals prevents the flow of electrons between the metals preventing premature failure of the piping traditionally dielectric unions see pictures at right have been installed to perform this function.
The adapter serves to hold both pipes together preventing leaking and other kinds of damage.
When you join them in such a way that they are touching each other they.
Unions on black gas pipe.
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.