UNIONS ON GAS PIPE

Posted by Tim on April 10, 2009, 1:28 am

I have never heard more different opinions on anything.

Can you use unions to connect gas pipe? Or rather, is it LEGAL to use unions
to connect gas pipe?

Some say YEAH BUT HIDE THEM, some say NO WAY, some say SURE, I'VE DONE IT
FOR YEARS. I was replacing some gas pipe and the guy at the plumbing
wholesaler asked if I wanted to do the connection with a union or a
right-left pipe and fitting (giving me a choice). I've always done it with a
right-left (though I don't like that way) because I thought that was the
code.

Any thoughts?

Thanks

Posted by Bill on April 10, 2009, 8:48 am

There are unions at my meter.

>I have never heard more different opinions on anything.
> Can you use unions to connect gas pipe? Or rather, is it LEGAL to use
> unions to connect gas pipe?
> Some say YEAH BUT HIDE THEM, some say NO WAY, some say SURE, I'VE DONE IT
> FOR YEARS. I was replacing some gas pipe and the guy at the plumbing
> wholesaler asked if I wanted to do the connection with a union or a
> right-left pipe and fitting (giving me a choice). I've always done it with
> a right-left (though I don't like that way) because I thought that was the
> code.
> Any thoughts?
> Thanks

Posted by Wayne Whitney on April 10, 2009, 11:24 am

> Can you use unions to connect gas pipe? Or rather, is it LEGAL to
> use unions to connect gas pipe?

If I recall, the Uniform Plumbing Code only allows unions at
appliances and at the meter. These have to remain exposed. Anywhere
else you need to use a left-right coupling.

For a more definitive answer, www.iapmo.org has a recent draft of the
UPC available for download, and you can find the actual rules.

Yours, Wayne

Posted by on April 10, 2009, 12:04 pm

> > Can you use unions to connect gas pipe? Or rather, is it LEGAL to
> > use unions to connect gas pipe?

> If I recall, the Uniform Plumbing Code only allows unions at
> appliances and at the meter. =A0These have to remain exposed. =A0Anywhere
> else you need to use a left-right coupling.
> For a more definitive answer,www.iapmo.orghas a recent draft of the
> UPC available for download, and you can find the actual rules.
> Yours, Wayne

That's the only place I have seen them used as well.

Posted by dpb on April 10, 2009, 12:54 pm

jamesgangnc@gmail.com wrote:

>>> Can you use unions to connect gas pipe? Or rather, is it LEGAL to
>>> use unions to connect gas pipe?

>> If I recall, the Uniform Plumbing Code only allows unions at
>> appliances and at the meter. These have to remain exposed. Anywhere
>> else you need to use a left-right coupling.

...
There's rarely if ever a need to disassemble anywhere except at those
locations as a routine/planned event, so little need afaics for anything
other than standard fittings elsewhere.

I would have assumed the question wasn't for in a buried line,
certainly... :)

--

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