Install Instructions

Viega PureFlow Tubing
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IM-PF 724596 1021 PureFlow Water System (EN)
4.2 Protecting Viega PureFlow PEX Tubing
Protect tubing and 󶈵ttings from UV exposure.
Due to the nature of slab-on-grade installation, tubing and 󶈵ttings may be
exposed to UV light for unspeci󶈵ed periods of time.
To prevent damage from UV exposure, all Viega PureFlow PEX tubing and
polymer 󶈵ttings shall be protected with an opaque covering (black plastic
polyethylene bag or sheeting) immediately after they have been installed.
PEX tubing shall be stored under cover, shielded from direct and indirect
sunlight when the material is stored for any length of time. Short exposure
times of Viega PureFlow PEX and polymer 󶈵ttings not exceeding the total
accumulated recommended exposure time are permissible.
Informing the other trades of the presence of the lines may help prevent
damage.
When the tubing penetrates at an angle in relation to the hole, it may be
subject to a sharp edge that can damage the pipe. Acceptable sleeving
materials include 󶈶exible plastic tubing, foam pipe insulation, or an
approved plastic insulator.
It is not necessary to sleeve tubing when penetrating wooden framing
members or non-metallic 󶈵nished or un󶈵nished walls. However, if there is
a doubt, sleeve the pipe or install an insulator.
Black plastic
polyethylene
bag or sheeting