Radiantheat.COM Product Submittal # 311
PEXPlus™ Radiant Tubing
PexPlus™ combines superior flexibility with superb performance in demanding hydronic applications. It is the piping of choice for floor heating, and radiator supply lines.

The base material of PexPlus™ consists of ultra-high molecular weight polyethylene, which is cross--linked to ASTM 876 standards.

PexPlus™ is corrosion free and has a EVOH barrier which limits the amount of oxygen allowed into a system to less than the DIN standard of 0.1 milligrams per liter per day.
Key Properties
Tensile Strenght 3900 PSI
Modulus of Elasticity 150,000 PSI
Degree of Cross Linking 80%
Density 56.68 lb /ft2
Thermal Expansion 0.0001 in/in/'F
Thermal Conductivity 2.7 Btu-in/Hr-Ft2
Max Operating Pressure 100 PSI
Max Operating Temp 180 Deg. ƒ
Size Standard SDR-9
Approvals ASTM 876/877, NSF-PW
The EVOH barrier coating meets or
exceeds DIN 4726 for oxygen diffusion.
Long Term Durability .The high degree of cross-linking in PexPlus™ provides excellent resistance to high temperatures and pressures. DIN 16892 requires that PEX pipe retains its strength over a 2000 hour test period at elevated temperatures. PexPlus™ exceeds those requirements even after 10,000 hours of testing.

Bending PexPlus™ is flexible and easy to bend. Minimum bend radius is 6 times the pipe OD. If a permanent bend is desired, heat the pipe with a heat gun. Once heat is removed, the pipe will remain in the configuration.

Repair If PexPlus™ is kinked while bending, it is easily repaired. Heat the kinked area with a heat gun for about 90 seconds. (approx. 265 'F). PexPlus™ will return to its original shape and integrity

PexPlus™ is corrosion free and has a EVOH barrier which limits the amount of oxygen allowed into a system to less than the DIN standard of 0.1 milligrams per liter per day. The base material of PexPlus™ consists of ultra-high molecular weight hd-polyethylene which is cross-linked using a saline agent during manufacture

Installation Tips Cutting to length is easily performed using a pipe cutter. Avoid long term exposure to direct sunlight. Use any SDR-9 fittings for joining. Be sure to account for thermal elongation in applications where piping is not set in concrete. PexPlus™ should be sleeved with larger plastic elbows where it enters and exits concrete slabs. DIN recommends that the maximum continuous use temperature of any PEX be limited to 158 F at the maximum operating pressure for optimum longevity.
Size Coil Lengths Feet Standard Flow GPM Pressure Drop Ft. Head 100% H20 Gallons Per 100 Feet Coil Length (ft) /Shipping Weight (Lbs)
3/8 300 .50 4.5 Ft. Head 0.5 300/18
1/2 300/600 1 3.7 Ft. Head 0.92 300/20 600/40
3/4 500 2.5 3.7 Ft. Head 1.85 500/60
RadiantHeat.COM 19 Woodmere Drive Mastic Beach, NY 11951
Fax 631-399-8611 Email: Engineering@radiantheat.com