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- over 420,000 Posts - PlumbingForum.com -
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Author:
jnaas2 (IN)
Is it against code to mix these two pipes together
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Author:
PlumerDan (CA)
not on gas.i should add the black is used out of the weather( indoor) ,the galvi is exterior use....you can run all galvi if you want-in and out.it just costs more out here. plus many people use gastite pipe and fittings.
Edited 1 times.
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Author:
jnaas2 (IN)
What about an air system hooked up to a nitrogen tank with a pressure regulator on it that if it fails will see the full pressure of the tank
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Author:
Shoemaker2 (MA)
Air should be fine.
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Author:
jimmy-o (CA)
Any pipe probably not rated for full tank pressure ( how much is that?) and the solution is to have a relief valve on the system.
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Author:
jnaas2 (IN)
1500 psi and there is a pressure regulator 5 feet away but i dont know if that small of a line can discharge air fast enough to keep from over pressuring the the 1/4 inch line and the pressure gauge. Ill bet money the pressure gauge isnt rated for that kind of pressure or the line.
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Author:
packy
plumerdan, it is against code to use galvanized pipe/fittings on gas in massachusetts.
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Author:
Paul48 (CT)
Just a couple thoughts...........If you have a regulator on the system that could possibly fail wide open, you're using the wrong type of regulator.And as stated, the system should have a relief valve.
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Author:
dlh (TX)
ok packy, but we are talking about states that dont use the dollar sign to spell the states name
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PLUMBERS "Protecting The Health Of The Nation"
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Author:
hj
Only for water piping.
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Author:
hj
What difference would that make? Both pipes have the same pressure rating.
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Author:
hj
The pressure gauge is rated for whatever its dial reads, and only specialized materials can withstand that pressure.
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Author:
hj
WE all know that EVERYTHING is illegal in MA. Here they can be mixed, and exposed outdoor gas pipe has to be galvanized or painted.
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Author:
hj
IF you are that concerned about something that may never happen, or if this is a medical situation, then you need a two stage regulator.
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