Pex pipe

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Old 02-24-09, 07:42 AM
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Pex pipe

Can pex pipe be used for propane line outside the structure using compression fittings or crimped fitting?
I have a leak between the house and the tank and if useable it's alot less than copper.
 
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Old 02-24-09, 12:29 PM
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Propane Prob.

NO,NO,NO!! , what you are trying to do can create a potential bomb!
 
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Old 02-25-09, 08:55 AM
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Originally Posted by hose1 View Post
Can pex pipe be used for propane line outside the structure using compression fittings or crimped fitting?
I have a leak between the house and the tank and if useable it's alot less than copper.
NO !!!!

now there is a yellow poly pipe that can be used but it is not pex pipe.

this work needs to be filed/permitted, tested and inspected.

someday someone else may be living in this house and it would be ashame to blow them up because the piping wasnt ran properly
 
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Old 02-27-09, 11:54 PM
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Easy guys!
thats why I asked the question.
A bomb?
How would using pex (plastic create a bomb?
In Texas you can use pvc for natural gas run line between the meter and house per Atmos gas inspector. A boring company hit a 1" pvc line going to a friends house causing a leak. the plumber contacted the gas company and they said fix it back with pvc.
Go figure.
Unless pex is harmed by the gas it is rated for high heat and pressure?Beer 4U2
 
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Old 02-28-09, 06:53 AM
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hose...this has come up once before, bout 6 months back. No one here could believe that PVC or PEX was legal for this application. None of the Pro's here had ever heard of such a thing except by people trying to cheap out.

I don't think we have any plumbing/piping experts in TX who post, but maybe someone will try checking some codes.

YES, to my knowledge propane and NG can adversely affect plastic piping, since they are both petroleum products.

There are flexible plastic products designed for gas piping..thats what they use when running main lines that I've seen, but they are specifically designed for it.
 
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Old 02-28-09, 10:13 PM
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In se Tx. It is legal to run gas in pvc, Not a good idea but legal. It has to be steel 3' from the ell coming out of the ground and all steel or copper above ground.



Travis
 
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Old 03-01-09, 08:14 AM
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Well, there ya go. Someone from the area came up with it.

Thanks Travis...where were you when that last thread I mentioned was getting so heated...lol.

But you did say PVC...not PEX, right? Any idea about that?
 
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Old 03-01-09, 08:35 AM
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Pex, I am not sure about that stuff. I will find out. I don't think I would use it. It hasn't been out all that long.
How long will it hold up out side ,or under ground?
I have heard good and bad things about it.
The fittings that are used with it, I don't think would work all that good.

I just had to return two valves, because they leaked. The 3rd one did fine.
I don't think it is safe to run gas through it, but that's just me.


Travis
 
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Old 03-01-09, 10:17 AM
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Originally Posted by waterwelldude View Post
Pex, I am not sure about that stuff. I will find out. I don't think I would use it. It hasn't been out all that long.

It is a "learn as we go" situation completely.


Two things scare me about this thread:


The "thought" that someone would couple a plastic gas line meant for water supply and use it for gas


and that texas would use PVC for gas lines, knowing the possibilities of that piping abruptly cracking/leaking when it does break


We live in a dangerous world when your neighbor is building a system to supply gas with products never meant for its use.


When a house blows up, does damage to your neighbors or possibly injure or kill someone, there's personal responsibility to consider when incorrect piping is used for any reason whatsoever.

I've seen far worse, unfortunately.
 
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Old 03-08-09, 09:30 AM
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Thanks guys.
Great discussion and information.
 
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Old 03-09-09, 10:30 AM
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i am a licensed master plumber in TEXAS. we do not allow pex or pvc piping for gas !

what we do allow is steel pipe and a special yellow poly pipe designed for gas usage. the plastic is only allowed under ground as mentioned earlier in this thread

this page will tell you about the plastic pipe designed for gas distribution Polyethyline Pipe - Gas Distribution Pipe
 
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Old 03-09-09, 10:47 AM
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PMDan....how did I miss the fact you were in TX? Another DUH moment on my part I guess.
 
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