SMC Networks KFG2H-C Series Operation Manual page 6

2. Specific Product Precautions (2)
Mounting/ Piping
(5) Tubing, with the exception of coiled tubing,
requires stationary installation. Do not use
standard tubing (non-coiled) in applications
where tubing is required to travel inside the
flexible protection tube. Tubing that travels
may sustain abrasion, extension, or severance
due to tensile force, or may result in removal
of tubing from fitting. Use caution prior to use
for proper application.
(6) To install the fitting, screw the fitting in using
the hexagonal face of the body, and tighten
with an appropriate wrench.
Affix the wrench at the base of the thread. If the
size of hexagonal face and wrench do not match,
or tightening takes place near the tube side, it may
cause collapse or deformation of the hexagonal
face, or damage to the equipment. After installing,
confirm that there is no damage to the fitting, etc.
Piping Method
Caution
(1) Take a tube having no flaws on its periphery
and cut it off at right angles.
(Use SMC's tube cutter TK-1, 2, 3, 5 or 6 for
cutting. Do not use pinchers, nippers or scissors,
etc.)
The tubing might be cut diagonally or flattened,
making installation
problems such as disconnection and leakage.
(2) Insert the tube into the union nut with the
union nut removed. Grab the tube and gently
push it throughly into the fitting.
(3)After insertion,
temporarily by hand.
(4) Fix the body with a tool. Tighten the union nut
to the end surface of the body using a suitable
wrench.
Hex. across flats may be deformed, if using an
improper wrench for hex. across flats.
If the body is not secured with a tool, this may
cause breakage.
impossible or causing
tighten the union
(5) Fix the body with a tightening tool. Tighten the
union nut to the end surface of the body using
a suitable wrench.
Hex. across flats may be deformed, if using an
improper wrench for hex. across flats.
Tighten the union nut with the proper tightening
torque shown below.
Union nut tightening direction
nut
Fitting size
KFG2 □
KFG2
□
KFG2
□
KFG2
□
KFG2
□
- 6 -
Union nut tightening tool
Body securing tool
Proper tightening torque [N・m]
04 2 to 3
06 3 to 4
5 to 6
08
8 to 10
10
10 to 12
12