User Guide

Installing PureFlow Systems
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PG-PF 724998 0320 PureFlow System
PEX Support Trays
PEX support trays are for use with clevis
hangers and/or coated ring clamps to help
reduce the number of support hangers that
are required for hanging PEX tubing. These
trays are available in 10-ft. lengths for 1"
through 2" PEX tubing sizes.
Installing PEX Support Trays
1. Install hangers at recommended
spacing per table below.
2. Install PEX tubing, slide the support trays
under the tubing and into the hangers.
3. Snap the tubing into the support trays.
4. Trays shall be strapped to the tubing
using Viega zip ties (or equivalent)
every 48" (two straps for trays less
than 48" in length) for clevis and/
or teardrop hangers and only once
between clamp-type hangers.
CAUTION!
When using tin snips or a
reciprocating saw to trim support
trays for shorter tubing runs, be
sure to remove any sharp edges prior to
installing trays onto the PEX tubing.
Note: Where space is available, it may be
easier to install the support trays on the PEX
tubing while on the 󶈶oor and then install the
tubing with trays attached onto the hangers.
Spacing Intervals
Tubing
Size
Between
Hangers*
Hanger to End of Tray Between
Trays
Fitting
to Tray
Tray Overlap**
1" 8' max min 1x nominal tube size 32" 2" min 4" min
1¼" - 2" 8' max min 1x nominal tube size 48" 2" min 4" min
* Where trays are installed continuously it may be necessary to use closer hanger spacing to maintain
a consistent hanger interval.
** A maximum of two continuous tray lengths shall be used where thermal compensation and/or
o󶈴sets are required, typically every 50 ft.