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PEX Tubing with Oxygen Barrier
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 and for boiler supply and return lines.
Barrier PEX features an Oxygen Diffusion Barrier per DIN 4726 standard, which helps to prevent corrosion of cast iron parts in a heating system (circulators, radiators, boiler heating elements, etc.)
Available in a variety of sizes and lengths.
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 and for boiler supply and return lines.
Barrier PEX features an Oxygen Diffusion Barrier per DIN 4726 standard, which helps to prevent corrosion of cast iron parts in a heating system (circulators, radiators, boiler heating elements, etc.)
Available in a variety of sizes and lengths.
Related documents:
How to install PEX. Making a crimp connection.
Installing PEX Pipe 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 PEX pipe leaks.
Providing proper support for long runs of PEX pipe?
How do I know if PEX pipe is allowed by code in my area?
Replacing Galvanized Pipes with PEX.
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 and is used to protect the heating system's cast iron and ferrous components from corrosion, thus extending their life. Common cast iron components in a hydronic or radiant heating system include boiler's heating elements, circulator pumps, air scoops, etc.
Which size tubing 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).
