Plumbing expertise?
Plumbing expertise?
(OP)
To install a 3/4" tap and hose bibb to a 10" epoxy coated steel pipe (potable watermain) - would you just cut a female thread into the steel pipe and mount on a 3/4" copper pipe? Or are there fittings for that? And any concerns about the damage on the epoxy coat due to thread cutting and concerns about electrolytic reaktions between the steel and copper? Thanks for your help!





RE: Plumbing expertise?
RE: Plumbing expertise?
RE: Plumbing expertise?
RE: Plumbing expertise?
Any good plumbing/pipe supply shop should be able to get you the parts you need. The tools that you might need are another story.
If I may ask, why are you tapping into a municipal water main? Most water companies will do that for you, thus eliminating your need to figure out what to use. Besides, I know that if joe public tried to tap into one of our water lines without our knowing it, we would consider it a terrorist act. Be careful of everybody's hightened anxiety due to the terrorist activities of late.
RE: Plumbing expertise?
We are not tapping an existing main - this is an extension of a water distribution system for which we had to design several meter and prv chambers. After completion of the design our client asked for some minor extras i.e. as the hose bibb. I am kind of reluctant to use a saddle in that case - on an existing main ok but on a new design I would like to connect it directly to the steel pipe by using a weld nozzle with FT as connection to the copper pipe. But I am not sure if a galvanic reaction between steel and copper is just a theoretical concern and what to do else. Using a pvc bushing in between may prevent direct contact between the two metals but wouldn't prevent a galvanic reaction. I have seen SS valves being in bad shape when installed in a copper line but maybe due to it's chromium content.
RE: Plumbing expertise?
That said, you could weld on a nipple and use iron pipe to the hose bib.
RE: Plumbing expertise?
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