"Eigenvector" wrote in message
Aquapex meets ASTM F876 and F877, and is certified to NSF standards 14
and 61. It is rated by the PPI : 200°F at 80 psi, 180°F at 100 psi,
and 73.4°F at 160 psi.
http://www.pexsupply.com/categories.asp?cID=25&brandid=
cheers
Bob
Oooohh, that's cutting it pretty damn close.
Sounds like in a PEX environment keeping water pressure at 60psi or lower
would give a much better factor of safety.
What is cutting close? It can take 100 psi and 180 degrees. Your hot water
should be only about 125 or so.
Note: Wirsbo 1/2" AQUAPEX tubing is listed to UL1821 and ULC/ORD C199 P and
carries an additional rating of 120 degrees F at 130 psi.
Do you have pressure near 130?