User Guide
Table Of Contents
- Introduction
- Codes, Standards, and Certifications
- PureFlow Press Fittings
- PureFlow Crimp Fittings
- PureFlow Tools
- Product Instructions
- Tubing Overview
- Design Considerations
- ManaBloc Systems
- Installing PureFlow Systems
- Storage Recommendations
- Handling Viega PureFlow PEX Tubing
- Removing PureFlow Connections
- Repairs
- Freezing
- Water Heaters
- Heaters, Flues, Vents, and Recessed Lights
- Fastening the PureFlow System
- Supporting PureFlow PEX Tubing
- Installation Considerations
- Noise and Water Hammer
- Shower Valves
- Electrical Grounding
- Expanding Foams
- Fire Stop Compounds
- Tubing Expansion
- Calculating Expansion Loops and Offsets
- Domestic Hot Water Circulating Systems
- Installing Viega PureFlow Fittings
- PureFlow PEX Tubing Installed in Slab
- Installing PEX Under a Slab
- Installing PEX Below Grade as Service Line
- Pressure Testing PureFlow Systems
- System Disinfection
- Limited Warranty
11
PG-PF 724998 0320 PureFlow System
PureFlow Crimp
Viega PureFlow Crimp ttings are in
metallic or polymer congurations. The
following design criteria make PureFlow
Crimp ttings ideal for use in potable
water applications:
■ Excellent strength properties
■ Corrosion resistant
■ Fast installation
PureFlow Crimp Eco Brass Fittings
PureFlow Crimp Eco Brass ttings are
manufactured from a high-grade Zero Lead
alloy.
PureFlow Crimp PolyAlloy Fittings
PureFlow Crimp PolyAlloy ttings are
manufactured from a performance-grade
polymer (Acudel
®
and/or Radel-R
®
)
with excellent chlorine- and corrosion-
resistant properties.
PureFlow Crimp Fittings
PureFlow Crimp Fitting Markings
Each PureFlow Crimp tting is marked where
space permits with the following information:
Manufacturer VIEGA
ASTM Standard
ASTM F1807 (metallic),
F2159 (polymer)
Temperature Rating 180°F
Certications
UPC
®
, or U.P. Code, NSF-pw,
CSA B137.5, cNSF
®
us pw-G,
ICC-ES PMG
™
1038
Note: All ttings may not be listed with each organization shown.
WARNING!
Use only ASTM F1807 copper
crimp rings and full-circle
crimp tools with PureFlow
Crimp ttings.
WARNING!
NOT for use with FostaPEX
tubing.
Viega PureFlow Crimp PolyAlloy ttings
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 PureFlow Crimp PolyAlloy
ttings 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).