PEX Tubing with Oxygen Barrier
Everhot Oxygen Barrier PEX Tubing is manufactured to ASTM F876/F877 standards and is pressure rated 100psi at 180F.
Barrier PEX can be used for a large number of radiant heating applications, such as radiant floor heating, snow melt systems, baseboard and radiator systems, fan coils, geothermal systems and for indoor or outdoor wood boiler supply and return lines.
Barrier PEX features an Oxygen Diffusion Barrier per DIN 4726 standard, which helps to prevent corrosion of cast iron components of a typical heating system, such as circulator pumps, radiators, air scoops, pipes/fittings, boiler heating elements, etc.
Available in a variety of sizes and lengths.
FREE SHIPPING ON ALL PEX TUBING (Contiguous US Only).
Barrier PEX can be used for a large number of radiant heating applications, such as radiant floor heating, snow melt systems, baseboard and radiator systems, fan coils, geothermal systems and for indoor or outdoor wood boiler supply and return lines.
Barrier PEX features an Oxygen Diffusion Barrier per DIN 4726 standard, which helps to prevent corrosion of cast iron components of a typical heating system, such as circulator pumps, radiators, air scoops, pipes/fittings, boiler heating elements, etc.
Available in a variety of sizes and lengths.
FREE SHIPPING ON ALL PEX TUBING (Contiguous US Only).
Related documents:
How to install PEX. Making a crimp connection.
Types of PEX installations.
PEX tubing: Myths and Facts.
Installing PEX tubing in concrete slabs.
Types of PEX (a, b, c). Choosing the right type for your project.
Technical specifications and general installation recommendations.
Tubing sizes, circuit lengths and floor output.
How to calculate heat load (a 5-step tutorial).
How to repair tubing leaks.
Providing proper support for long runs of PEX tubing
How do I know if PEX is allowed by code in my area?
Replacing galvanized pipes with PEX.
PEX in a multipurpose NFPA 13D Fire Sprinkler System
Using solar thermal in radiant heating systems
Using geothermal heat pump for a floor radiant heating system
Outdoor wooden furnaces with insulated PEX
Using geothermal heat pump for a floor radiant heating system
Use of anti-freeze in PEX tubing
Is PEX tubing recyclable?
How safe is PEX tubing?
PEX tubing installation accessories
What is "Oxygen (O2) Barrier?"
Oxygen (O2) Barrier is a layer of special polymer, abbreviated EVOH, which is typically applied to the external surface of the PEX pipe. The EVOH oxygen barrier layer protects the PEX tubing from the diffusion of oxygen molecules into the water of the radiant heating or hydronic heating system and significantly reduces the corrosion of common cast iron components such as circulator pumps, for example. Any typical hydronic or radiant heating system would require the use of Oxygen Barrier PEX vs. the Non-Barrier.
Which size PEX is right for my application?"
Under normal design conditions, the size of tubing is determined by heat load requirements and the application type, and is specified by the engineer who designs the radiant heating system.
1/2" PEX is the most common tubing size and is used for majority of radiant heating installations, such as subfloor installations, concrete slabs (reinforced and non-reinforced), sandwich type installations and engineered floors.
3/4" PEX is commonly used for snow melt systems, since such systems require a higher flow rate than traditional radiant heating systems. This size is also very common for copper finned baseboards and cast iron or aluminum radiator heating installations.
1" PEX is generally used for supply and return lines to the boiler or the radiant heat manifold. Large ID of 1" PEX allows it to transport substantial amounts of hot water to great distances, which makes it ideal for outdoor wood furnace installation.
3/8" size is used in non-structural slabs (under tile) for residential radiant heating applications - bathrooms, kitchens, etc. It is a preferred size for smaller areas due to it's flexibility.
5/8" PEX sometimes replaces 1/2" tubing when project calls for higher heat loads or flow rates. It can also substitute 3/4" PEX in applications that require more flexibility and less flow (such as smaller snow melt systems).
