Install Instructions
www.uponorpro.com
14
Making ProPEX Connections with
Milwaukee ProPEX Expansion Tools
Note: All standard Uponor Expander Heads are compatible with the M12 and M18 tools.
Uponor expander heads will not auto-rotate on the Milwaukee tools (only Milwaukee
expansion heads will auto-rotate on the M12 and M18). H-heads are not compatible with
Milwaukee tools and Milwaukee heads are not compatible with Uponor tools. Milwaukee
heads are easily distinguished by color coding and the Milwaukee logo.
Important! Making expansions are
slightly different when using a tool that
features auto rotation. When making a
ProPEX connection, be sure to follow the
guidelines for the tool you are using in
your application.
1. Square cut the PEX tubing
perpendicular to the length of the
tubing. Remove all excess material
or burrs that might affect the fitting
connection.
2. Slide the ProPEX Ring over the end
of the tubing until it reaches the stop
edge. If using a ProPEX Ring without a
stop edge, extend the ring over the end
of the tubing no more than
1
⁄16" (1mm).
Important! If making a
3
⁄8" ProPEX
Connection, you must first expand each
side of the ring before placing it on
the tubing. Refer to the “Making
3
⁄8"
ProPEX Connections” instructions on
page 20 for further information.
With Auto Rotation
(Standard Milwaukee Heads)
3. Milwaukee ProPEX Expansion Tools
come with built-in auto rotation. If
using a Milwaukee expansion head,
simply hold the tubing and tool in place
while holding the trigger to expand
the tubing. The head will automatically
rotate to ensure the tubing is evenly
expanded. Continue expanding until
the tubing and ring are snug against
the shoulder on the expander head.
See Table 3-1 on page 13 for the
recommended number of expansions
for each tubing size.
Without Auto Rotation
(Standard Uponor Heads)
4. Press the trigger to expand the tubing.
5. Release the trigger, remove the head
from the tubing, rotate it
1
⁄8 turn and
slide the head back into the tubing.
1
2
3, 5
4
Expansion with Milwaukee M12 ProPEX Expansion Tool