PEX Installation Manual

IM-PF 724596 0416
18
8 Viega FostaPEX Tubing
Viega FostaPEX tubing is the ideal companion for the
Viega PEX plumbing system. This tubing can be easily
bent by hand like the ViegaPEX Ultratubing but holds
its shape after bending (combining the benefitsof both
rigid and flexible tubing). The result is fewer fittings
and bend supports and less labor. A unique feature of
FostaPEX is that the inner layer is fully dimensioned
Black ViegaPEX Ultra tubing. The aluminum and
outer PE layers surround the inner PEX tubing. This
construction allows the inner layer alone to meet all
temperature and pressure requirements of the system.
Using theprep tool to remove the outer layers allows
the use of the standard Viega PEX Press bronze and
polymer fitting systems, which reduces tooling costs for
the contractor and simplifies connections.
8.1 FostaPEX properties and performance
Linear Expansion Coefficient:
• 0.16 inch per 100 feet per 10°F
Temperature and Pressure Ratings:
• 200°F at 80 psi *
• 180°F at 100 psi
• 73.4°F at 160 psi
*For non-potable hydronic heating systems only
UV Resistance:
• Maximum exposure six months based on FostaPEX’s
fully dimensioned black PEX core. Extended
exposure due to the outer aluminum layer (do not
install where permanently exposed to sunlight).
Chlorine Resistance:
• PEX 5306 - end-use condition of 100% at 140°F
(approved for continuous domestic hot water
circulation systems)
Bend Radius:
• FostaPEX tubing can be bent to a radius of 3.5 times
tubing outer diameter with the use of a Viega tubing
bender.
Not for use with PEX Crimp fittings.
8.2 Tubing markings
FostaPEX tubing is marked every five feet with the
following representative information. See Table 8.1.
Print Line Markings
Length Marker 000 feet
Company Viega
Product Name FostaPEX
®
Nominal Tubing Size ½"
Standard Dimension
Ratio Tube Size
SDR 9 CTS
(copper tube size)
Material Designation Code PEX 5306
Temperature & Pressure Rating
100 psi @ 180F
160 psi @ 73F
NSF Listing (Potable/Heating) cNSF
®
us-pw-rfh
NSF Chlorine Listing CL5
ASTM
Tubing Standards Certification
F876/F877
Canadian Standard Assoc CSA B137.5
Fittings System Compatibility
PureFlow
ASTM F877
IAPMO Listing UPC
®
Plenum Rating*
FS/SD 25/50
ASTM E84
CAN /ULC S102.2
Fire Resistance Ratings
CAN/ULC S101
ANSI/UL 263
ICC Listing ES-PMG
™
- 1015,1038
AWWA Listing C904
HUD Listing MR 1276
Manufacturer's Date Code 1/1/2010
Material Code X18.1
Country of Manufacture Made in the USA
* 2" and smaller tube sizes when wrapped with ½" - 1" thick E84 rated
insulation, ½" and smaller with no insulation per ULC S102.2 listing.
Tubing may include fitting connections when wrapped.
Table 8.1