16mm Hdpe-Al-Pex Pipe

Lifetime guarantee included

Wunda’s high quality, premium multi-layered 16mm HDPE-AL-PEX floor heating pipe with full approvals.

Ideal for use in UNDERFLOOR screed systems.


Product Information

Crosslinked polyethylene PE-X internal layer, internal bonding layer, intermediate aluminium layer, external bonding layer, high density polyethylene HDPE external layer. We would not recommend using HDPE-AL-PEX pipe in our Overfloor boards -due to being stiffer than PERT-AL-PERT . PER-AL-PERT is a more flexible pipe that has no 'spring-back', will hold it's shape on bends and will be a lot easier to install. Wunda's thermally dynamic 16mm HDPE-AL-PEX pipe has an aluminium core that produces a higher heat output than ordinary Pex and Polybutylene pipe and is easy to use. HDPE-AL-PEX pipe is stiffer than a PERT-AL-PERT pipe and is not suitable for use in Overfloor heating systems that require tight bends and close pipe spacing. It is easy to shape by hand and stays where it's put with minimal spring back. Our pipe is 100% oxygen tight and leak proof. Wunda pipe comes with a WUNDA LIFETIME guarantee.
  • Ideal for screed floor heating systems
  • National Decleration of Conformity
  • Aluminium core
  • Higher output than plastic pipe
  • Leak proof pipe
  • Very low expansion and contraction, just 5cm in 100 linear metres which is similar to copper (Ordinary plastic pipe has an expansion/contraction rate of approximately 50cm in 100 linear metres)
  • 100% oxygen tight (oxygen ingress can rot boilers) - ordinary pipe is normally only 80%
  • Easy to shape by hand- easy to fit, stays where it's put with minimal spring back
  • Detectable under the floor
  • AENOR certificated
  • DIN 4726
  • ISO 9001
Maximum operating temperature [°C] short term110
Outside Diameter [mm]16
Thickness of wall [mm]2.0
Coil Size80m, 100m, 120m, 250m, 500m
pa_single-bulk1118, 1794, 1790, 1788, 1786, 1792, 1787, 1785, 1793, 1791, 1789
Pipe Dimensions [mm]16 x 2.0
Water capacity of pipe [l/m]0.113
Maximum Pipe Loop Length100mtrs per loop
Thermal Conductivity [W/Mk]0.45
Guaranteed forLIFETIME
Design Pressure [bar]6
Absolute Roughness [mm]0.007
MaterialAluminium, HDPE & PEX
Inner Diameter [mm]12
Coefficient of thermal expansion [mm/Mk]0.025
Single / Half Pallet / Full PalletSingle, Half Pallet (x12), Full Pallet (x24), Half Pallet (x10), Full Pallet (x19), Half Pallet (x8), Full Pallet (x15), Half Pallet (x5), Full Pallet (x7), Half Pallet (x4), Full Pallet (x10)

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