Jones Stephens E09050 Instructions D'installation page 2

PVC Fittings
Installation Instructions
1. Mount the expansion fitting so that the piston can
move in a straight line within the barrel. If alignment
is not straight, the piston will bind and prevent the
fitting from working properly.
Most fittings are installed horizontally.
If the expansion fitting must be installed vertically, install
it near the top of the run with the barrel pointing down.
Fasten the open end securely in the down position and
make sure the conduit run is fastened securely at the
bottom. This ensures upward movement during length
change,
2. Place the expansion fitting in the correct, initial
setting position, so that it can accomodate the
expected length change.
If an expansion fitting was installed completely closed
with the piston bottomed on a cool day, there would
be no travel available when the conduit warmed up
and expanded. If it was installed in a maximum open
position on a hot day, the expansion fitting would pull
apart when cooled. Thus, "setting" the expansion fitting
is very important.
The setting position depends upon:
• installation ambient temperature
• expected length change
3. Clamp the expansion fitting barrel(s) tightly and the
conduit loosely, using nonmetallic conduit straps.
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Installation Instructions – English
Piston
For cold temperartures (20°~30°F),
set the piston 1/4 of the way in the barrel.
For medium temperartures (65°~75°F),
set the piston 1/2 of the way in the barrel.
For hot temperartures (95°~105°F),
set the piston 3/4 of the way in the barrel.
Solvent weld Mid-point
Pipe strap Piston opening
should be anchored
tightly to barrel
©2023 Jones Stephens | 02698-07 | 8-11-2023
Barrel
Solvent weld
Pipe strap
mounted loosely
to allow movement