Allied PEX Pipe Advantage
• Allied PEX is flexible and can be installed with fewer directional fittings in less time, and at less expense, than rigid plumbing systems.
• Allied PEX can stretch to accommodate the expansion of freezing water and then return to its original size when water thaws. Although Allied PEX is highly freeze-break resistant, no material is freeze-break proof.
• Allied PEX offers superior chemical and environmental stress crack resistance.
• Allied PEX tubing connected with the crimp fitting system is one of the fastest joining systems in the U.S.
For applications not listed, consult with your Allied representative. Allied PEX is a superior alternative to copper for plumbing systems.
There are three primary methods of PEX production—Peroxide (Engel),
Radiation (E-Beam), and Silane. ALLIED PEX uses the Silane method
of producing PEX tubing. The Silane method is the most efficient
manufacturing method and produces the strongest PEX tubing on the
market. Silane method surpasses the quality standards of the ASTM
more than any other commercial production method.
to using the Silane method includes:
Long life expectancy
Thermal stress resistance
Available in colors
The cross-linked molecular structure
of Allied PEX offers toughness, flexibility and lasting durability.
Allied PEX is corrosion resistant and virtually maintenance free.
Non Barrier PEX Pipe
pipe is used for domestic / potable plumbing systems. Allied PEX
is certified by NSF & CSA.
Systems are the new standard in plumbing. Old rigid systems cannot
compete with the ease of installation and superior performance of Allied PEX.
This flexible, durable water distribution piping system has proven itself
PEX Pipe with Oxygen (02)
Diffussion Barrier EVOH
This radiant tube combines all of the
traditional advantages of Non-Barrier PEX tubing, but with an EVOH
oxygen barrier. This barrier provides added protection against corrosion
for the various ferrous components of a heating system.
Barrier EVOH PEX pipe and your Radiant Floor Heat System:
will penetrate through the tubing wall and into the circulating water of
“closed” hydronic radiant floor system. The amount of oxygen passing
through the tubing wall and into the system is well known for all
materials and increases with temperature. For a typical system with
plastic tubing working at 100° F continuously, this oxygen diffusion
leads to the generation of about 1 oz. corrosion products
(MagnetiteFe3O4) per 100 ft. of pipe each year (10 times more for EPDM
rubber hoses). That is, if ferrous materials are present in the systems,
such as steel pipes, steel pumps or steel boilers. If the quality of the
water is good, general corrosion occurs. The resultant sludge consists
of a fine grain metal oxide that normally is easily transported with the
water. It mainly settles where the water flow rate is low. However, the
amount of sludge builds up over the years and will lead to circulation
disturbances and other corrosion-related problems. With more corrosive
water qualities, problems due to pitting corrosion are likely to occur
early. Always choose an O2 Barrier PEX pipe or PEX-AL-PEX pipe for your
Radiant Floor Heat System.
is a composite pipe engineered for radiant floor heating. It's proven,
long lasting and maintenance-free. Installers like it because it's
lightweight, durable and can be shaped to fit any jobsite. The aluminum
layer protects boiler systems against corrosion and it has superior
temperature and pressure ratings.
Composite Pipe (PEX Tubing) consists of five layers, inside and outside
layers are made of Cross-Linked Polyethylene (PEX) tightly bonded with
melt adhesive to the mid-layer of aluminum core which is longitudinally
welded in an overlap. All layers of the Allied PEX-al-PEX are extruded
in one step. The middle layer of aluminum is 100% gas/oxygen tight,
giving it advantages of both metal and plastic pipe, but not the
Allied PEX-AL-PEX is manufactured to American Standard Testing Methods
for composite radiant pipe and fittings (ASTM F-1281) and is certified
by the NSF 1281. It is rated by the PPI: 200°F at 100 psi, 180°F at 125
psi, and 73.4°F at 200 psi. Included are requirements and test
methods for materials, workmanship, dimensions, environmental stress
cracking, sustained hydrostatic pressure strength, thermo-cycling resistance
and bend strength among other tests. Allied PEX-AL-PEX meets or exceeds
Easy Handling – Stays in place
Simple Installation - No special tooling required
Flexible - Rigid enough to hold itself in place for straight, neat runs with enough flexibility to go around obstacles without additional fittings.
Can be located with a Metal Detector - When remodeling, adding walls or bolting down equipment, it's a must to be able to find the tubing.
Minimum Heat Expansion and Contraction - Similar to copper tubing.
Greater Heat Transfer Aluminum is a better conductor than PEX tubing
Best of Both Worlds - Strength, memory and pressure rating of aluminum with the corrosion resistance of PEX,
inside and out The Strong Silent Type - Doesn't expand as much as PEX, resulting in less noise in an under floor application.
100% oxygen barrier