PEX-AL-PEX and PE-AL-PE Pipe Usage

The most experienced hands are those of the manufacturer.

Have you read their data?

ASTM is more concerned about material test methods than use data.

Read the manufacturer's literature, or call them and ask for enlightenment.

Thanks for the comment.Actually below displayed screen shot took from an engineering specification told me to review those ASTM standards. However, I am looking for comments from experienced guys, 50% experienced guys and newbies in CR4 regarding the usage of materials mentioned in my original query. All CR4 members can comment. No issues

One document says,

You're a real piece of work!

It is beyond belief that you are obsessed with test specifications, that mean nothing about assembly of piping.

You are a total waste of time here, and I suggest that you go away and bother the makers of the pipe. They won't recognize you as a total loser if you just ask for "application notes" for their products.

Sooner or later they will figure it out.

You are not capable of putting a "guide" together for anything, except being a pain in the a--.

"application notes"

"application notes"

"application notes"

OK agreed, if anyone need MOC properties, they have to directly contact manufacturer itself. That goes without saying. Otherwise get the sample piece of MOC from the production lot and test it in any other qualified professional material testing laboratory.

You entirely miss the point.

I give up. You are beyond, and not worth, help.

<Unsubscribes in total frustration.>

I pity anyone who has to live with your work product!!!!!!!!!!!!!!!!!!!11

Thanks

Jeez! Do a Google search. Don't expect members here to waste time spoon feeding people who can't even be bothered to use a name but go by PA#1 information that is available to those who bother to look.

PEX is cross linked PE. It has better physical properties.

Since you have no clue what cross linking is and don't even have the courtesy to look first, go fish.

DO A SEARCH FOR YOURSELF!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Thanks for providing the correct key word for a fine tune internet search.Yes, I was searching for info. without precise keyword.One 'word' I found in your previous reply changed the whole course of the game. Could you point out it?

Lyn did a wonderful job today. Thank you again

Just typing PEX as only keyword in search brings up "Cross-linked polyethylene".

You didn't even try.

You should not waste everybody's time by asking the forum to educate you.

Learn how to use a search engine.

How to Search the Internet - Hannon Library

You will get a much warmer reception if you drop the anonymous poster title and give yourself an identity. Then the next time you come here you will not just be another pesky newcomer, again, but rather will have a history.

I realize this speech is wasted on 99% of APs. Set yourself apart from the anonymous crowd.

Yes, I do.

another ANON with reading issues

Yes, they are a cheap alternative to copper or stainless steel and can be installed by less skilled workers along with the kinks, dents and incorrectly prepared coupling systems that the cheaper labour will build into the work free of charge..

Connected with legacy metallic plumbing and you will discover first hand how dissimilar metals get along with each other if the wrong coupling hardware is used.

Why do you want to know?

Thanks for the comment. Actually I am trying to prepare an easy reference document suitable for welding engineers and inspectors those who are working in coded pressure vessel fabrication, Boiler fabrication, Power piping fabrication, Process piping fabrication, Storage tank fabrication, Structural steel fabrication and Pipeline construction. I found that, there is no book currently available in the market which provide an emphasis on code reference and it's explanation. So, my document would give an emphasis on construction code clauses to be referred during each fabrication phase. This work is not for commercial purpose; I just want to distribute this document in my friendly circle for our reference.

Material of construction is a major part in fabrication. Metals and non metals are used for construction. One ASME code discuss about non metallic materials for piping construction. So, I need info. about non metals other than GRE (Glass reinforced Epoxy) and GRV (Glass reinforced Vinyl) and that is why I asked this question in CR4.

You are the wrong person to be preparing documents for anyone. You have no clue what you are doing!

You are completely ignorant of the subject at hand and will surely only confuse the poor readers who may think you are qualified to prepare such documents.

STOP IT NOW. YOU ARE NOT QUALIFIED!!!!!!!!!!!!!!!!!!!!!!!!!

You are incorrect - it is not a "Cheap" alternative to copper or SS. I have performed estimates for projects where PEX was requested as an alternate and there was no savings to the client. Piping & fittings are limited to maximum size of 2" OD, the labor you think you save is simply exchanged for more and proper support as well as the costly fittings. To state it can be installed by less skilled workers is suggestive and ridiculous. It's application should be limited to residential and light commercial domestic water service, not in process.

It's application should be limited to residential and light commercial domestic water service

Exactly, and that's where the illusion of thrift is extolled and clearly evident in the high quality (NOT) installations using this cheaper per meter alternative.

Camille George Rubeiz, PE, says it can be from 0.5" to 65"

"international pipe standard" what is it?

Trust me! You need it!

I have it at my desk to properly explain what pipe is!

Its a must for Engineers and should be part of every booklet that is to deal with pipes!

ABSOLUTELY BRILLIANT!!!! It gave the lads in the office a good laugh. Cheers for that.

This screen shot may be useful to stop

That's a fine reference, and correctly matches the competence level of AP#1 who is putting together a "guide" document for his circle. (Pity that circle!)

Now that AP#1 has admitted what he's up to this entire thread takes on the look of a tragicomedy.

What about this?

What about it?

Want to promote it?

What?

My limited understanding of the PEX-Al-PEX is when it is used for hydronic heating systems. I have read that the aluminium layer prevents the migration of oxygen into the water-glycol solution to slow down corrosion of metallic (iron?) items in the system such as a hot water boiler.

Digging onto the deep recesses of my adolled brain, I recall a chemistry class problem...

Aluminium dinghy tied to a steel ship with a metallic tether both floating in seawater....discuss.

This post only reinforces the absurdity questionable quality of your first two here.

The OP has no clue anyway, so why bother?

Why bother? So I can banter right along with you of course!

Are you talking about this hydronic heating or ..

No no no....please refer to post # 10......