PEX & Kinks

[Chewwy]

I deem you nucking futz... I would NEVER use sweated copper for air lines in any shop where the static pressure exceeds 130 psi (which mine does), sweated copper lines are a grenade waiting to explode and the shrapnel from any failure if you are in the 'bleed zone' can kill or cause you great pain and discomfort.
. . .

Interesting, since even type M copper tubing has a working pressure rating of over 280 psi (1 in diameter). Even 3 in diameter has a working rating of over 200 psi.

 

[5030]

Interesting, since even type M copper tubing has a working pressure rating of over 280 psi (1 in diameter). Even 3 in diameter has a working rating of over 200 psi.

Keep in mind that the weak link will always be the sweated connections which aren't ever an issue with NPT connections. Considering the cost of copper alloy piping and fittings compared to black iron pipe today, I would surmise the cost to be about the same not including the cost of the pipe threader of course. The only copper in my entire system is the line that goes from the high side of the Quincy to the receiver and possibly the inter cooler but that is painted so I'm not sure about that.

 

[Mtsoxfan]

What hasn't been mentioned, Pex can take freeze cycles better than copper. Due to someone else's builder doing an improper install, my Pex pipes froze several times, no issues... usually took 3 days of temps over 35 to thaw...

 

[dstig1]

I deem you nucking futz... I would NEVER use sweated copper for air lines in any shop where the static pressure exceeds 130 psi (which mine does), sweated copper lines are a grenade waiting to explode and the shrapnel from any failure if you are in the 'bleed zone' can kill or cause you great pain and discomfort.

And I would deem you 100% wrong. The Fortune 100 company I work for uses grade L copper for all their industrial air lines, and so did I. Now if you were talking about PVC becoming shrapnel, then I would agree. But Grade L copper is well within the working pressure range for this and is not a "shrapnel hazard" like you claim. If the professional pipe fitters in the labs and plants use it, with all the potential liability that a large organization is so scared of, then it is perfectly acceptable in my shop.

 

[5030]

And I would deem you 100% wrong. The Fortune 100 company I work for uses grade L copper for all their industrial air lines, and so did I. Now if you were talking about PVC becoming shrapnel, then I would agree. But Grade L copper is well within the working pressure range for this and is not a "shrapnel hazard" like you claim. If the professional pipe fitters in the labs and plants use it, with all the potential liability that a large organization is so scared of, then it is perfectly acceptable in my shop.

Whatever. I do what I'm comfortable with and what I know works safely in my situation, what you ascribe to and what I ascribe to distills down to your opinion, versus mine. What a forum is all about, opinions and I would never demean anyone on here for that like you just did. I find that to be less than a mature reply, in fact, much less.... and I was not referring to the copper piping itself, but the sweated copper joints and if they were properly fused or not. You need to go back and read my comment, not that I would ever use copper tubing in that application, because I would not.

I'll leave it at that.

 

[dstig1]

Well that is par for the course for you. You were the one who was insulting and name calling to begin - out of the blue - and I was far more polite in response than you deserved. And now gaslighting in response.

I gave you FACTS, and they differ from your OPINION so to try and save face you say that I was demeaning in my reply. Facts are facts, and if you find them demeaning it is entirely within your own head. Sweated copper airlines are perfectly safe and the fact that the very large, safety and liability obsessed company I work at uses them for hundreds of miles and miles of airlines - without failure or incident for the past 70-80+ years - is all the evidence anyone needs.

Now if you don't like or trust copper for air, that is fine, and iron pipe is also perfectly fine. But it does not change the fact that copper is indeed perfectly safe, just because you don't like it. And that applies to sweated joints as well as the pipe itself.

The immature, insulting reply is yours, trying to gaslight that my 100% fact reply is somehow insulting. But you are a well-known entity here on TBN, so I doubt this surprises anyone here.

 

[5030]

Whatever. and have a nice day if you can...

 

[5030]

But you are a well-known entity here on TBN, so I doubt this surprises anyone here.

Been here a very long time and I'm sure I've ruffled more than a few feathers during that time.

Being north of 70 now, my tolerance for irrelevance is very limited and I only frequent this forum for entertainment mostly. Same applies to You Tube as well as Rumble and Twitter I might add.

 

[Pettrix]

Plumbing company said they will come out and replace that kinked area.

 

[5030]

Make sure they extend the spliced in PEX well beyond the kinked section.