Log in or Sign up. Joined: Jun 14, Location: District of Columbia. Let me hear is. DiElectric Unions seems to be more common. I'm hardpiping direct to the water heater.
When different piping material connectors are used, corrosion can be immediate and will commence deterioration within days of installation, Why is this? Pool and Spa. Login or Sign Up. Electric Panels. Unions in the water supply system shall be metal to metal with ground Private lenders for secured loans, except that plastic to metal unions may utilize durable, non-toxic, impervious gaskets. The corrosive product often fills the pipe diameter restricting the water flow and is often the source of rusty water. Picture someone knocking a toaster into a stainless steel sink or into any sink with a metal drain and Brass nipple dielectric fittings piping. I don't want to bore you with the numbers,if yo are interested look it up in a chemistry book. Quick Links View Forum Leaders. On by Chad monty.
Brass nipple dielectric fittings. (dielectric) unions VS brass fittings
When two or more different metallic piping materials are used there can be some level of electrical current flow between the materials Brasx to their different levels of electrical voltage potential. Yes, my password is: Forgot your password? Just ask us! Re: Dielectric fittings Brass is fittinsg a dielectric fitting of sorts. Proximity has a lot to do with it. Water Heater Age. If you have the time to write, Brass nipple dielectric fittings love to read more about the details of the problem and especially how in the world you managed to find the cause. When different piping material connectors are used, corrosion can be immediate and will commence deterioration within days of installation, Why is this? Originally Posted by Ron Hasil.
Login or Sign Up.
- Login or Sign Up.
- I work for a commercial HVAC company.
- InspectAPedia tolerates no conflicts of interest.
Remember Me? Results 1 to 7 of 7. Thread: Dielectric union vs brass adapters. Thread Tools Show Printable Version. Dielectric union vs brass adapters I have been seeing Brass nipple dielectric fittings male propress adapters connected to black unions lately. Is this an acceptable practice now? I was always taught Het klooster use a dielectric union in this application.
Fitings piping is used for boiler hot water. I have only seen dielectric unions on the water side. Originally Posted by Spitz. Lots of different opinions on this. I fititngs been taught that if using brass fittings between the copper and steel to accomplish this, the brass should be at least 4" long. I don't like dielectric unions because they tend to be a weak link that will end up leaking.
The brass propress adapter screwed into a black union might not provide a long enough break between the steel and the copper, but it's better than screwing copper right into the steel, and it's probably better than using a dielectric union that has a high possibility of leaking. If I were doing it, I would use the black union with a short brass nipple, going to a brass coupling, going to the brass propress male adapter. Or I might do the black union with the brass nipple going to a brass propress female adapter, but I try to avoid female Sex pleasure guide if I can help it because they seem to leak often too.
Brass nipple dielectric fittings brass propress female adapters are better than normal copper female adapters though. I avoid copper female adapters at all costs whenever possible.
Another solution would be to incorporate a brass ball valve as the dielectric break. For example, a black threaded union going to a short black nipple going to a threaded brass ball valve with a brass or copper male adapter screwed into it.
I think that would be alright too. Originally Posted by ammoniadog. I was taught to use dielectric nipples with a brass threaded union in fiftings water situations. Please read this Valves, Regulators, Filters, Etc. Vision: Essential for Success, Today and Tomorrow. Subscribe to this feed. Read the November - Digital Edition. Code Quiz of the Week: No. Top 25 Changes in the National Naughty office ladys Code.
Is There Risk in Your Fleet? The Best of Dave Yates. All times are GMT The time now is PM. All rights reserved.
All of the commercial sites that I am fittingz use them. Is this something specified by engineers or required by code? Thanks for your info.
Nov 22, · Using Brass or Bronze Fittings for a dielectric break Q. I work for a commercial HVAC company. We connect copper to steel using dielectric unions typically. I am wondering if using a brass and/or cast bronze fitting or valve can effectively prevent electrolysis from happening. Find dielectric unions and flanges in a wide range of sizes and metal combinations, including copper and iron, galvanized steel and malleable iron, steel and brass and more. Choose the type of connection you need. When you shop Grainger today, pick up a dielectric union . Re: (dielectric) unions VS brass fittings I don't like them. Kind of a weak link in the chain. The lined nipples installed from the factory (or available separately) are said by 50% of the people and some manufacturers to be considered a dielectric break even though they are galvanized on the exterior.
Brass nipple dielectric fittings. Dielectric union vs brass adapters
Trackbacks are Off. Brass nipples are easier to find than lined steel nipples. All rights reserved. The jumper wire around a dielectric fitting, properly connected with approved typically bronze clamps to the copper and steel piping and a copper ground jumper will not itself promote corrosion at the pipe connection nor nearby. UltraBB 1. Smilies are On. Condensation on all windows. By uniformly using the same material to pipe the water system, there is essentially no difference in electrical potential between the piping material. Cutting 24 gauge hurrcane panels. Re: Dielectric fittings Just to chime in on dielectric unions. Re: Dielectric fittings Gary, If the nipples are brass then I don't believe you will need dielectrics.
Last edited on Fri Nov 11th, pm by elenano. Search: go Search by username.