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
Codes, Standards, and Certifications
8
PG-PF 724998 0320 PureFlow System
Fire Resistant Construction
U.S. listings
Plenum rating
Viega PureFlow PEX tubing has been tested and listed to the ASTM E84 with the
following ratings:
ASTM E84 Plenum Ratings / Listing
Manufacturer
Products
Listed
Flame
Spread
Smoke
Development
Limitations
Viega ⅜" to 2" PEX 25 or less 50 or less
½" minimum insulation
thickness, no spacing
limitations
Note: Listings include fitting connections in line when covered by insulation.
Viega PureFlow PEX has the following listings for each respective construction type:
ANSI/UL 263 and ASTM E119
Construction Type Assembly Type Design No.
Wood Frame Construction
Floor / Ceiling M517
Walls VL/FWDP 60-01
Noncombustible Concrete /
Steel Construction
Floor / Ceiling
VL/FWDP 120-01
VL/FWDP 120-02
Walls VL/FWDP 60-02
U.S. Fire Resistant Construction