PEX Installation Manual

11
IM-PF 724596 0416
5 Viega PEX Press Fittings
Viega PEX Press ttings are available in Zero
Lead Bronze and polymer and include a factory-
assembled, stainless steel sleeve with three
viewing holes and a tool locator ring to ensure a
proper press connection. The following design
criteria make Viega PEX Press ttings ideal for use
in potable water applications:
• High corrosion resistance
• Excellent strength properties
• Resistant to stress corrosion
• Superior wear properties
• Compatible with all materials
All Viega PEX tubing, fittings and manifolds are NSF
certified for use in potable water systems.
5.1 Viega PEX Press bronze
Viega PEX Press bronze ttings are manufactured
from a high-quality Zero Lead material specically
designed for press technology meeting or
exceeding all manufacturing requirements.
5.2 Viega PEX Press polymer
Viega PEX Press polymer ttings are
manufactured from Radel R
®
and incorporate
the Viega Smart Connect feature.
5.2.1 Viega Smart Connect feature
The Viega PEX Press
Polymer tting system
incorporates the Viega
Smart Connect feature,
which is designed to
identify unpressed
connections by
intentionally leaking
under test pressures of
0.5 psi to 100 psi. This
can be visually identied
by water leaking from
the unpressed tting
joint. If testing with
compressed air, it is
necessary to use an
approved leak-detect
solution (see “Leak
detection” on Page
61), applied to each
connection, to identify
a suspected leak.
Press any connections
that may have been
missed and/or replace
connections found to be
in question. Repeat the
system pressure test.
5.3 Viega PEX Press fitting markings
Each Viega PEX Press fitting is marked where space
permits with the following information:
Manufacturer VIEGA
ASTM Standard ASTM F877
Temperature
Rating
180°F (potable)
200°F (hydronic heating)
Certications
cNSF
®
us pw-G, CSA B137.5
UPC
®
or UP Code, cULus
®
ICC-ES PMG
™
1038 / 1015
NOTE: All ttings may not be listed with each
organization shown.
Use only Viega stainless steel attached
PEX Press sleeves and press tools with
Viega PEX Press fittings.
Viega PEX Press polymer fittings must
be protected from UV exposure, which
can damage them. In the event of
incidental UV exposure during storage,
installation and handling, combined
exposure of PEX Press fittings shall not
exceed 15 days.
Do not expose Viega products to any
foreign substance that includes but
is not limited to VOC (volatile organic
chemical) compounds, paints, solvents,
glues, cleaners and disinfectants.
Viega products that are exposed to
these types of substances are at risk of
having failures (leaks).
Figure 5.1 Smart
Connect Feature