Description
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.
Wirsbo hePEX is compatible with both Wirsbo's ProPEX fitting connections and QS-style fittings.
Wirsbo hePEX is manufactured to ASTM F876 and F877, and is designed for closed-loop hydronic heating applications. 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 Wirsbo Quik Trak system.

Note: 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"
  • CSA B137.5 Thermoplastic Pressure Piping Compendium
What listings does Wirsbo hePEX tubing have?
  • CSA
  • ICC
  • ITS
  • PPI
  • UL
  • NSF-rfh
  • NSF/ANSI Standard 61 for potable water
What code approvals does Wirsbo hePEX tubing have?
  • IMC
  • UMC
  • IRC
  • NBC of Canada
What fire-rated assemblies does Wirsbo hePEX tubing have?
In the United States:
  • Tested in accordance with ASTM E119/UL 263
  • G573 - Two-hour Hambro floor/ceiling assembly
  • K913 - Two-hour concrete floor/ceiling assembly
  • L557 - One-hour wood frame floor/ceiling assembly
  • U372 - One-hour wood frame wall assembly
  • V444 - One-hour steel stud wall assembly
In Canada:
  • Tested in accordance with CAN/ULC S101
  • G573 - Two-hour Hambro floor/ceiling assembly
  • UW/WA 60-01 - One-hour steel stud wall assembly
  • UW/WA 60-02 - One-hour wood frame wall assembly
  • WC/FCA 60-01 - One-hour wood frame floor/ceiling assembly
  • WC/FCA 120-01 - Two-hour concrete floor/ceiling assembly
  • WC/FCA 120-02 - Two-hour concrete floor/ceiling assembly
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Specs
Size:
5/8"
Length (Feet):
1000'
Outside Diameter:
0.75"
Inside Diameter:
0.574"
Fitting System Compatibility:
Crimp/Clamp (HydroPEX) Expander (ProPEX) PEX Compression Press (Viega) Push Fit (Sharkbite)
Tubing Type:
Oxygen Barrier
Material:
PEX
Color:
White
Application:
Heating
Max Pressure (PSI):
160
Grade:
PEX-a
Warranty:
25 Year
Standards Met:
DIN4726
NSF
Max Temp (F):
200°F
Type:
Tubing
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