Product Description
The REHAU 136011-020 RauPEX Oxygen Barrier Pipe is a high-performance PEX-a pipe built for hydronic heating, radiant heating, and radiant cooling systems. It measures 1 inch nominal size with a 1 and 1 eighth inch outside diameter and comes in a 20 foot length. This pipe is made from crosslinked polyethylene using the Engel method, which gives PEX-a material its superior flexibility and long-term durability compared to PEX-b or PEX-c alternatives. The wall thickness is 1 eighth inch, and the working pressure rating is 160 psi, making it suitable for demanding closed-loop hydronic applications where consistent performance under pressure and temperature cycling is critical. A co-extruded ethylene vinyl alcohol layer, also known as EVOH, is bonded directly to the pipe during manufacturing. This EVOH oxygen diffusion barrier limits the amount of oxygen that can permeate through the pipe wall over time. In hydronic systems, oxygen permeation leads to corrosion inside metal components such as boilers, manifolds, pumps, and radiators. By limiting that permeation, this pipe helps extend the service life of the entire system. The pipe is compatible with F876 and F1960 PEX connection types, making it suitable for use with cold-expansion fittings and standard PEX press or crimp systems where the fitting specifications allow. REHAU RauPEX pipe is a trusted choice among plumbers, mechanical contractors, and hydronic system installers who need a reliable, code-compliant pipe for in-floor radiant systems, baseboard heating loops, and fan coil connections. The flexibility of PEX-a allows for coiling and routing through tight spaces without the risk of kinking that is common with rigid pipe materials.
- Co-extruded EVOH oxygen diffusion barrier limits oxygen permeation to protect metal system components from corrosion
- PEX-a crosslinking method delivers superior flexibility, kink resistance, and long-term pressure and temperature performance
- Compatible with F876 and F1960 PEX connection types for versatile installation options
Product Highlights
The REHAU 136011-020 RauPEX Oxygen Barrier Pipe delivers proven PEX-a flexibility combined with an EVOH oxygen barrier layer, making it a reliable choice for hydronic and radiant heating and cooling system installations that demand durability and corrosion protection.
Product Information
Standard Information
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Brand: REHAU
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Manufacturer Part Number: 136011-020
Technical Specifications
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Nominal Size: 1 inch
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Outside Diameter: 1 and 1 eighth inches
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Length: 20 ft
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Material: Polyethylene (PEX-a)
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Wall Thickness: 1 eighth inch
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Working Pressure: 160 psi
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Connection Type: F876/F1960 PEX
