User Guide

Tubing Overview
18
PG-PF 724998 0320 PureFlow System
FostaPEX
®
Tubing
Viega FostaPEX tubing is the ideal
companion for the Viega PureFlow
plumbing system. This tubing can be easily
bent by hand like the Viega PureFlow
PEX tubing but holds its shape after
bending (combining the bene󶈵ts of both
rigid and 󶈶exible tubing). The result is fewer
󶈵ttings and bend supports and less labor.
A unique feature of FostaPEX is that the
inner layer is fully dimensioned Black Viega
PureFlow PEX 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 PureFlow Press Zero
Lead bronze and polymer 󶈵tting systems,
which reduces tooling costs for the contractor
and simpli󶈵es connections.
Properties and Performance
Linear Expansion Coe󶈷cient:
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 12 months.
FostaPEX should not be installed 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 tubing bender.
WARNING!
Not for use with PEX Crimp
󶈵ttings.
FostaPEX Tubing Markings
FostaPEX tubing is marked every 󶈵ve feet
with the following representative information.
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) cNSF
®
us-pw-rfh
NSF Chlorine Listing CL5
ASTM Tubing
Standards Certi󶈵cation
F876, F877
Canadian Standard Assoc CSA B137.5
Fittings System
Compatibility
PureFlow - ASTM
F877, F3347, F3348
IAPMO Listing UPC
®
Plenum Rating*
FS/SD 25/50
ASTM E84
CAN/ULC S102.2
Fire Resistance
Ratings
CAN/ULC S101
ANSI/UL 263, UL 2846
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 󶈵tting connections when wrapped.