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
2
PG-PF 724998 0320 PureFlow System
Viega.
Connected in quality.
Building on Tradition
Founded 120 years ago, Viega is a privately owned, international group of companies.
In the United States, Canada, Mexico, and Latin America, Viega specializes in plumbing,
heating, and pipe joining technologies. The values of Viega’s founder, Franz-Anselm
Viegener, are just as present today as they were when he started the company in 1899.
Courage, passion, and innovative spirit are still the basics of Viega’s foundation.
©
2020, Viega
®
, FostaPEX
®
, ManaBloc
®
, PureFlow
®
, ProPress
®
, and Smart Connect
®
are registered
trademarks of Viega GmbH & Co. KG. Eco Brass
®
is a registered trademark of Mitsubishi Shindoh Co.,
LTD. Radel
®
R is a registered trademark of Solvay Advanced Polymers. Viega: Connected in quality
®
is a
trademark of Viega Holding GmbH & Co. KG. RIDGID
®
is a registered trademark of RIDGID, Inc.
Heritage of quality, vision for the future
Viega’s heritage of superiority demands nothing but the best for our customers.
Engineered to be ecient, Viega products perform at the highest possible level,
providing condence and peace of mind. Viega is the only manufacturer to oer press
systems in multiple pipe joining materials. More than one million Viega press ttings
are installed every day around the world and, with a Supply Chain that can process
orders in 48 hours or less, Viega is positioned to provide customers with the best,
most versatile support in the industry.
WARNING!
Viega products are designed to be installed by licensed and trained
plumbing and mechanical professionals who are familiar with Viega
products and their installation. Installation by non-professionals may
void Viega LLC’s warranty.
This document is subject to updates. For the most current Viega
technical literature please visit www.viega.us.










