User Guide

6
PG-PF 724998 0320 PureFlow System
Introduction
Viega PureFlow Systems
Viega PureFlow is a high-quality, 󶈶exible
PEX system for hot and cold potable water
distribution. It is the most complete potable
water solution available on the North
American market. With tubing, 󶈵ttings,
and distribution manifolds, Viega provides
everything you need for a total plumbing
system that is not only easy to install but also
helps reduce energy costs and water waste.
The Viega PureFlow plumbing system o󶈴ers
maximum security thanks to press and full-
circle crimp 󶈵tting techniques. Viega provides
the highest-quality PEX tubing with the best UV
and chlorine ratings in the industry. All Viega
PureFlow tubing, 󶈵ttings, and manifolds are
NSF certi󶈵ed for use in potable water systems.
Viega PureFlow and its related 󶈵ttings are
listed to the requirements of AWWA C904 and
approved for use in water service applications.
Viega o󶈴ers a variety of threaded, solder,
and ProPress
®
adapters to transition PEX to
several types of piping materials.
The systems incorporate:
■ Viega PureFlow PEX tubing: red,
white, blue, and black cross-linked
polyethylene tubing designed with
superior chlorine and UV resistance.
■ Black Viega PureFlow PEX tubing
(¾" - 2"): UL 1821 listed for use in
multipurpose one- and two-family 󶈵re
sprinkler systems per NFPA 13D.
■ Viega FostaPEX
®
tubing: cross-linked
polyethylene with additional aluminum
and polyethylene layers to provide
rigidity and form stability, available in red
or silver to di󶈴erentiate hot water lines.
■ A range of Zero Lead bronze, Eco Brass
®
,
or polymer 󶈵ttings for PureFlow Press
and PureFlow Crimp 󶈵tting systems.
■ Viega ManaBloc
®
distribution system for
use with Viega PureFlow PEX tubing.
■ A range of inline, manifold, and stop
valves for Viega PureFlow 󶈵tting systems.
■ Viega press tools and jaws for the
PureFlow Press 󶈵tting systems.
■ Viega crimp tools for the PureFlow
Crimp 󶈵tting systems.
Smart Connect
®
Technology
Locating unpressed connections is an
important step in the pressure testing
process. Viega PureFlow Press Polymer
󶈵tting systems incorporate Smart
Connect technology, providing quick
and easy identi󶈵cation of unpressed
connections during a pressure test.
Smart Connect technology is an integral
part of the design of the 󶈵tting, providing
a path for liquids and/or gases from
inside the system past the sealing
element of an unpressed connection.
When pressed according to our Product
Instructions, the 󶈶uid path is altered,
creating a leak-proof, reliable connection.
Unpressed connections are located by
pressurizing the system with air or water.
When testing, the proper pressure range
is 40 to 100 psi.
3
Viega PureFlow
connections are
fast and reliable.
1
Identify an unpressed
connection during
pressure testing
when water flows out of
the unpressed fitting joint.
2
Upon
identification,
use the press tool
to press the fitting,
making a secure, leak-
proof connection.