Uponor (Wirsbo) hePEX is heat-transfer tubing with an EVOH oxygen
diffusion barrier. The oxygen diffusion barrier meets the requirements
of the German DIN Standard 4726. Uponor (Wirsbo) hePEX is compatible with both Uponor’s (Wirsbo) ProPEX fitting connections and QS-style fittings. Uponor
(Wirsbo) hePEX is manufactured to ASTM F876 and F877, and is designed
for closed-loop hydronic heating applications. Uponor (Wirsbo) hePEX
tubing is rated and listed by the Hydrostatic Stress Board of PPI at:
200 degrees F at 80 psi, 180 degrees F at 100 psi and 73.4 degrees F at
160 psi. Note 1: 5/16" hePEX tubing is used for the Uponor (Wirsbo) Quik Trak system.
Note: Uponor (Wirsbo) hePEX tubing, traditionally used in radiant
heating applications, became certified to NSF/ANSI Standard 61 for
potable water in December 2012. Please read the Approvals document
located in the Manuals tab for more information.
What are the Uponor PEX Standards?
Uponor PEX and associated fittings are manufactured to the following standards:
ASTM F876 "Standard Specification for Cross-linked Polyethylene (PEX) Tubing"
ASTM F877 "Standard Specification for Cross-linked Polyethylene (PEX) Plastic Hot and Cold Water Distribution Systems"
ASTM F1960 "Standard Specifications for Cold Expansion Fittings
with PEX Reinforcing Rings for use with Cross-linked Polyethylene (PEX)
Tubing"
ASTM F2080 "Standard Specifications for Cold Expansion Fittings
with Metal Compression Sleeves for Cross-linked Polyethylene (PEX)
Tubing"
These warnings are not an indication that these products are violating any safety standards or regulations.
However, as our products might be sold in the state of California, we are legally obliged to inform customers about the potential presence of these chemicals in our products.
