Install Instructions

Fastening the Viega PureFlow System
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IM-PF 724596 1021 PureFlow Water System (EN)
12 Fastening the Viega PureFlow System
Viega PureFlow PEX tubing is ideal for use in wood frame construction.
The ability to bend the tubing around corners and obstacles greatly
simpli󶈵es installation. This system eliminates the expensive and time-
consuming use of 󶈵ttings where tubing turns within a wall, and it
eliminates the potential 󶈵re hazard of soldering close to exposed framing
members.
A few rules should be followed when running Viega PureFlow PEX tubing
in wood frame construction:
■ Use nailing plates to protect the tubing from nails and screws where it
passes through studs.
■ Suspension clips are required for metal studs and optional for wooden
studs.
■ When turning tubing sharply to exit from a wall, a bend support must
be provided. Either use a drop-ear bend support, drop-ear elbow, or
a stub out. Neglecting to use a support will place excessive stress on
the 󶈵tting, and the tubing will not exit perpendicular to the wall.
12.1 Wood Frame Construction
Nailing plates protect tubing passing through
studs and joists from nails.
12.2 Steel Construction
The Viega PureFlow system works as well in steel frame construction
as it does in wood. Where tubing runs through metal studs, suspension
clip fasteners must be used to protect tubing from sharp stud edges
(see illustration to the left). Follow the same guidelines for fastening and
supporting the tubing as for wood frame construction.
Suspension clip fasteners used to protect
tubing from abrasion when passing through
steel studs