Install Instructions

Installing the Viega PureFlow PEX Tubing System
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IM-PF 724596 1021 PureFlow Water System (EN)
11.4 Removing PureFlow Connections
Should a mistake be made, simply cut out the PureFlow 󶈵tting and
replace with a new one.
CAUTION!
Do not reuse Viega PureFlow 󶈵ttings
11.5 Repairs
11.6 Freezing
Sections of kinked tubing should be repaired by cutting out the damaged
section and installing a repair coupling.
The 󶈶exibility of Viega PureFlow PEX tubing makes it resistant to damage
from freezing, but precautions to prevent freezing should be taken when
low temperatures might be encountered.
Insulating each PEX tube individually or as a group is not generally
necessary if the PEX tubing is installed within the insulation envelope of the
structure, i.e., the heated area. For example, the tubing may be installed
under the insulation in the attic or within an interior wall of a heated space.
PureFlow PEX tubing should not be intentionally installed in areas subjected to freezing.
Do not use an open torch or excessive heat to thaw PureFlow PEX tubing.
Tubing failure or damage can result.
Heat (DO NOT USE A TORCH) must be applied directly to the frozen
tubing section. Temperature on tubing shall not exceed 180° F.
if freezing occurs, several suitable methods exist to thaw PureFlow PEX tubing:
■ Hot water
■ Wet, hot towels
■ Hand-held hair dryer
■ Low-wattage electrical heating tape (self limiting)
■ A commercial system that pumps heated water through a tube to the
ice blockage and returns the cooled water for reheating