Specific Product Precautions - SMC Networks KF Series Operation Manual

2. Specific Product Precautions (1)

Design/Selection
Warning
(1) Check the specifications.
The product in this catalog is designed to be used
in compressed air systems (including vacuum)
only. If the product is used in an environment
where pressure or temperature is out of the
specified range, damage and/or malfunction may
result. (Refer to the specifications.)
Please consult with SMC when using a fluid other
than compressed air (including vacuum). We do
not guarantee against any damage if the product
is used outside of the specification range.
(2) Do not disassemble the product or make any
modifications, including additional machining.
It may cause human injury and/or an accident.
(3)Check if PTFE can be used in application.
PTFE powder (Polytetrafluoroethylene resin) is
included in the sealant. Confirm that the use of it
will not cause any adverse affect on the system.
Caution
(1) Keep the connection part of fittings and tubing
from rotating or oscillating movement.
The fittings may be damaged if they are used in
the above manner.
(2) The tubing bending radius in the vicinity of the
fitting should be at least the minimum bending
radius of the tubing.
If the bending radius is less than the minimum
value, fittings may be damaged, or tubing may
crack or be crushed. The minimum bending radius
of the FR soft nylon tubing (TRS series), FR double
layer tubing (TRB series), antistatic soft nylon
tubing (TAS series), polyolefin tubing (TPH series),
soft polyolefin tubing (TPS series) is measured as
following in accordance with JIS B8381. Tubing
deformation ratio at the minimum bending radius is
obtained through the following formula, based on
tubing diameter and mandrel diameter by wrapping
the same radius mandrel tube.
Tube deformation
bending radius
 L - D
η  1
= −
2d

Here, η: Deformation ratio (%)
d: Tubing diameter (mm)
L: Measured length (mm)
D: Mandrel diameter (mm)
(Twice against the minimum
bending radius)
Test temperature: 20 +/5
Relative humidity: 65 +/5%
(3) Do not use fluids other than listed on the
specifications. Applicable fluids are air,N
and steam. Please consult with SMC if using other
fluids.
(4) When it is used with water, the fittings or tubing
may be damaged depending on the surge
ratio at the

 100
×

o
C
pressure.
(5) When using the swivel elbow, particles may be
generated by rotation for positioning after
connecting. If you are concerned about the
effects on machinery and equipment, check the
particle generation with your machine before
use.
(5)Depending on the storage or operating
environment and the period of storage or use,
the surface of the brass (C3604) may blacken.
If the discoloration of the brass is a problem,
we recommend selecting electroless
nickel-plated brass instead.
Example) KFH06-01S -X2
(1) Operation manual
Install the products and operate them only after
reading
understanding its contents. Also, keep the manual
where it can be referred to as necessary.
(2)Ensure
activities.
When installing the products, allow access for
maintenance.
(3) Adhere to the thread tightening method.
When installing the products, refer to "Connection
Thread Tightening Method".
(4) There may be cases of the tubing detaching
from
uncontrollably due to tubing degradation or
fitting breakage.
To
uncontrollable, fit the tubing with a protective
cover or fix it in place.
(1) Preparation before piping
minimum
Before piping is connected, it should be thoroughly
blown out with air (flushing) or washed to remove
Mandrel
chips, cutting oil and other debris from inside the
pipe.
(2) Winding of sealant tape
When screwing together pipes and fittings, etc., be
certain that chips from the pipe threads and sealant
do not get inside the pipe. Also, when the sealant
tape is used, leave approximately 1 thread ridge
exposed at the end of the threads.
,water
2
5
Mounting/ Piping
Warning
the operation manual
sufficient space
the fitting and
prevent the situation
Caution
carefully and
for maintenance
thrashing around
from becoming