ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS
INSTALLATION INSTRUCTIONS
5
MAKING THE CONNECTION WITH
THE LARGE CRIMP TOOL
1 Measure and cut the tube. Be sure
you have a square burr-free cut. An
uneven or jagged cut may cause an
improper connection.
2 Next, slip a copper crimp ring onto the tube.
Do not use hose clamps!
3 Now insert the fitting into the tube
up to the fitting shoulder. Position the
crimp ring 1/8" to 1/4" from the end of
the tube. An improperly positioned ring
may produce a weak connection. Ring
may be squeezed to hold it in place until
step 4 is completed.
4 Position the tool so the crimp ring is
completely covered by the tool jaws.
Keep the tool at a 90° angle to the fitting
and close it completely. Squeeze handles
together to complete the crimp.
5 Open the tool handles to release jaws from the crimped fitting.
6 Measure the crimped ring with
Zurn “Go/No-Go” gauge. See table
below. Do not measure bumps on
ring where jaws met. If “Go” on
gage does not fit, or if “No-Go”
does fit, then cut out connection,
replace fitting and ring, adjust and
calibrate the tool, and recrimp.
The following dimensions are the ASTM maximum and minimum crimped
ring diameters for crosslinked polyethylene (PEX) pipe installations.
NOTE: Using the large crimp tool for anything other than its intended use
will void the warranty. For troubleshooting and repair assistance, do not
return tool directly to wholesaler. Call Zurn Customer Care for assistance at
1-855-ONE-ZURN. See www.zurn.com for warranty information.
WARNING: This product contains a chemical known to the State of
California to cause cancer, birth defects and other reproductive harm
ADVERTENCIA: Este producto contiene una sustancia química que el Estado
de California como causante de cáncer, defectos de nacimiento y otros daños
reproductivos
STANDARD TUBE SIZE > 3/8" 1/2" 3/4" 1"
Minimum Diameter 0.580" 0.700" 0.945" 1.175"
Maximum Diameter 0.595" 0.715" 0.960" 1.190"
Variation in ring diameter (out-of-round) should not exceed 0.006".
1/8¨ to 1/4¨
Crimp Ring
Spacing
Fitting
Shoulder
Fitting
Shoulder
1/8" to 1/4"
Crimp Ring
Spacing
Making Crimp Connections
COLD WEATHER
INSTALLATION CONNECTIONS
Crimps are intended to be made in general working temperatures
above 32°F. However, in extreme temperatures down to 0°F, we
recommend more frequent gauging to ensure in specification
crimps are being made.
Zurn PEX oers the following crimp systems for the installation
of multipurpose fire protection systems: Copper crimp ring and
QickCap® copper crimp ring with positioning end cap. To choose
the crimp system most appropriate for your installation, consider
factors relative to your jobsite priorities.
COPPER CRIMP RING SYSTEM
• Proven system for over 30 years
• Copper Crimp Ring, QCR_X,
available in 3/8"-2"
• QickCap Copper Crimp Ring
with Positioning Cap,
• QCR_XPC, is available in 1/2"-2"
• Go/No-Go Gauge
• 25-year system warranty
Listings
By NSF International as meeting the following standards:
• ASTM F877
• ASTM F1807
• CAN/CSA B137.5
• NSF Standard 14
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