Tpr Discharge line is PEX

[Stephen W. Stanczyk]

From Uponor, manufacturer of Wirsbo PEX.

D.
Storage and Protection: Store materials protected from exposure to harmful environmental conditions and at temperature and humidity conditions recommended by the manufacturer.
1.
Store PEX tubing in cartons or under cover to avoid dirt or foreign material from being introduced into the tubing.
2.
Do not expose PEX tubing to direct sunlight for more than 30 days. If construction delays are encountered, provide cover to portions of tubing exposed to direct sunlight.


From Vanguard site.


Q - Can CANPEX™ tubing be used for outdoor applications?

A - No. PEX is designed for indoor and buried applications only and is not recommended for outdoor use. Short exposures to sunlight are permissible, not to exceed 30 - 60 days. When storing CANPEX™ tubing, it must be stored under cover, shielded from direct sunlight.

[Joe Funderburk, CMI]

Originally Posted by sstanczyk

Do not expose PEX tubing to direct sunlight for more than 30 days. If construction delays are encountered, provide cover to portions of tubing exposed to direct sunlight.

From Vanguard site.

Q - Can CANPEX™ tubing be used for outdoor applications?

A - No. PEX is designed for indoor and buried applications only and is not recommended for outdoor use. Short exposures to sunlight are permissible, not to exceed 30 - 60 days. When storing CANPEX™ tubing, it must be stored under cover, shielded from direct sunlight.

Thanks. Learn something new every day. But I'm not going to get bent out of shape for 3" of a dry pipe hanging out of a wall. If it deteriorates after 10 years, replacing it is part of the joys of home ownership, called maintenance.

[Stephen W. Stanczyk]

Originally Posted by jfunderburk

Thanks. Learn something new every day. But I'm not going to get bent out of shape for 3" of a dry pipe hanging out of a wall. If it deteriorates after 10 years, replacing it is part of the joys of home ownership, called maintenance.

Most, if not all of the builders up here would install it and then paint it the same color as the house / trim. That would take care of the issue.

[Chuck Evans]

Originally Posted by mnorthrup

Paul this is not in response to your post

The fitting goes inside of the pex line so it would be smaller. So if its inside diameter of the fitting meets the requirments than it would be ok but it does not seem that anyone here seems to know.
I understand the pipe is ok for the temp that is why it is installed in the house on the hot water side of the plumbing. But the graph, chart or diagram does not show if the pipe will flex under high pressure spraying everybody that is in its path and with the elbow fitting being smaller that will help to increase the steam and high pressure water as it is coming out and spraying. have you ever seen a fire hose under pressure out of control and it isn't hot water. I under stand that the pex pipe is ok temp wise. But they dont show installation insturctions for the fly by night contractors that use what ever they have left over to save money. Ie In some timelines outlets were not grounded, wires were covered with cloth, afci were not heard of. Just because it states that pex is ok to be used with tpr discharge lines does not tell me that the set up is ok and proper or safe for that matter.
Mark

I think we are dealing with nominal pipe diameters here. Also, the tubing is stretched over the fitting barb. IMO: the inner diameter of the fitting is not an issue.