NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
www.nibco.com
8
www.nibco.com
A H E A D O F T H E F L O W
®
Step 5
Use the go/no-go gauge to check every crimp joint. An improper crimp has been formed when (1) the “go” side does
not
fit over the ring
or
, (2) the “no” side
does
fit over the ring. If the joint fails either of these two tests then cut out the joint and return to Step 1.
CRIMP GAUGE
No-go
No-go
No-go
Go
Go
Go
BAD CRIMPS
Ring is compressed
too much.
Ring is not
compressed
sufficiently.
No
Go
Go
A micrometer can be used to measure the correct
dimensions of a crimp ring after a proper, single
crimp per the following table:
Tube Size Min
Max
3/8”
0.580”
0.595”
1/2”
0.700”
0.715”
3/4”
0.945”
0.960”
1”
1.175”
1.190”
1-1/4”
1.430”
1.445”
GOOD CRIMPS
Ring is properly
compressed.
Does not fit in
“No-Go” slot.
Ring fits in
“Go” slot.
No
Go
Go
AND
