Are there dielectric unions that also act as a reducer?

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Originally Posted by gravyrobber

Are there dielectric unions that also act as a reducer?

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Yes there are diaelectric reducing unions. What exactly are you trying to do? Regards, tom

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Originally Posted by speedball1

Yes there are diaelectric reducing unions. What exactly are you trying to do? Regards, tom

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I'm doing some research for an engineer who is doing work on the potable water system in our plant. Plant specs call for any piping under 3" to be copper. He needs to have piping installed from 3"(galvanized steel) to 2"(copper). We were thinking to just have a copper reducer at the end of the dielectric union, but if both were combined that would save some time with the evaluation/approval process. Could you direct me to a supplier/dealer?

As I said,

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Yes there are diaelectric reducing unions.

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But not that large. Stick with the bushing. Good luck. Tom

Install 3" to 2" brass reducing coupling...

If you cannot get brass, then install 3"x2" galvanized reducing coupling, then 2" x Close brass nipple, and connect your copper line with 2" male adaptor.

Brass acts as di-electric coupling...

I only found one 3" dielectric union: http://www.corrpro.com/products/pdf/DiPipeUn.pdf and this one had threads on each side. So you would need a 3" copper male thread to slip adapter and a 3" by 2" copper or brass bushing to transition down to 2" copper. Good luck, Tom