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
7
PG-PF 724998 0320 PureFlow System
Specifying PureFlow Systems
Viega oers many tools to assist the
specifying engineer, engineer, contractor,
and installer to ensure Viega PureFlow
systems are properly designed and
installed. This can be done by referring to
one of the resources listed below:
■ Engineering Specications are
available at www.viega.us.
■ Viega guide specications in Master
Spec format are available upon
request at (800) 976-9819.
■ Contact your local Viega eld sales
representative.
With a 25 year limited warranty and
unmatched quality in the industry, Viega
oers a complete system solution for all
your plumbing needs.
Viega PureFlow PEX tubing and Viega
PureFlow Press polymer ttings are
manufactured in the United States and
provide secure, reliable connections for
residential and light commercial projects,
ranging from potable water to snow
melting applications.
Codes
The Viega PureFlow system is accepted by
the following model codes for use in potable
hot- and cold-water distribution systems:
■ Housing for Urban Development (HUD)
■ IAPMO: California Plumbing Code (CPC)
■ IAPMO: National Standard Plumbing
Code (NSPC)
■ IAPMO: Uniform Mechanical Code (UMC)
■ IAPMO: Uniform Plumbing Code (UPC)
■ ICC – International Code Council
■ ICC: International Mechanical Code (IMC)
■ ICC: International Plumbing Code (IPC)
■ ICC: International Residential Code (IRC)
■ National Building Code of Canada (NBCC)
■ National Plumbing Code of Canada (NPCC)
Check with your local Viega representative
for code compliance in your area.
Standards
■ ASTM E814
■ ASTM E84
■ ASTM F1807/F2159
■ ASTM F876/F2023
■ ASTM F877
■ ASTM F3347
■ ASTM F3348
■ ASTM F3253
■ AWWA C904
■ ISO 9001
■ NFPA 13D
■ NSF/ANSI 14
■ NSF/ANSI 359
■ NSF/ANSI 372
■ NSF/ANSI 61
Certifications
■ CAN/ULC S101
■ CAN/ULC S102.2
■ CAN/ULC S115
■ CAN/ULC/ORD/ C199P
■ Certicate of Listing
■ cNSF
®
us pw-G
■ CSA B137.5
■ IAPMO R&T
■ ICC – ES
■ ICC ES-PMG
™
■ NSF U.P. Code
■ NSF-pw certication mark
■ PEX 5306
■ TR 4 Listed Materials
■ UL/ANSI 1821
■ UL/ANSI 263
Note: Certications available at:
■ www.nsf.org
■ www.spec-direct.com (Intertek)
■ www.ul.com
■ www.canada.ul.com
Codes, Standards, and Certifications










