 PEX © Tubing and
Manifolds |
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| We use and recommend Wirsbo radiant systems.
The PEX Tubing and brass
manifold components are manufactured in Apple Valley, MN which gives us
quick access to technical support and products. |
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The Wirsbo site in Apple Valley, Minnesota |
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| WHAT IS PEX TUBING?
The PE refers to the raw material used to make Polyethylene and the
X refers to the cross-linking of the Polyethylene across its
molecular chains. The molecular chains are linked into a three
dimensional network that makes PEX remarkably durable within a
wide range of temperatures and pressures. |
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| Wirsbo has been producing and selling PEX tubing since 1971, with well
over 2 BILLION feet of pipe in service worldwide. Since the
beginning, Wirsbo PEX has been manufactured to the industry's toughest
quality control standards. And when it comes to long term testing, no
other PEX producer comes close to matching Wirsbo's track record.
Hydrostatic tests started over two decades ago with Wirsbo PEX at
accelerated temperatures and pressures are still going on.
When completed, these tests will set a world record for long term
testing of flexible plasic tubing. |
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| Tubing installed in radiant floor and ceiling heating applications must
be capable of withstanding the extreme stresses that result from
installation within a concrete slab, or on a structual wood floor.
Typical stress include: |
| • expansion and contraction that result from repeated heating and
subsequent cooling of the heat transfer fluid |
| • mechanical abrasion, shearing and stretching that occurs as a result
of installation, normal structual movement, and heating and cooling
from seasonal weather changes |
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| Wirsbo PEX tubing holds the current unofficial world record for long
term testing at elevated temperature and pressure - 25 years at 203°F
at 75 psi, and still going. When the test is completed, the record
will be offical. |
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| Wirsbo brass fittings and manifolds have to endure long term heating
and cooling under pressure known as thermocycling. Wirsbo tubing and
manifolds are tested by a third party to protect the installer and
customer, therefore neither are taking a risk by installing radiant
heat. |
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E-Mail your inquiries to:
hfs@visi.com |
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©1999 Heated Floor Systems, Inc.
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