SMC Networks ASN2 Series Operation Manual page 6

Mounting
Caution
(1) First, tighten the fitting by hand, then use a
suitable wrench to tighten the hexagonal
portion of the body a further two or three turns.
For the reference value for the tightening
torque, refer to the table below. Check the
dimensions of each product for the width
across flats.
(2) M5 and 10-32 UNF
First, tighten it by hand, then give it an additional
1/6 turn to 1/4 turn with a wrench. The reference
value for the tightening torque is 1 to 1.5N・m.
※ Excessive tightening may damage the thread
portion or deform the gasket and cause air leakage.
If the screw is too shallowly screwed in, it may come
loose or air may leak.
(3)Chamfered female
connection thread M5, 10-32UNF
In compliance with ISO16030 Standards (air
pressure fluid dynamics – connection – ports and
stud ends), the chamfered thread sizes shown
below are recommended.
Female thread size
M5
10-32UNF
(4) The proper tightening torques for hexagon
lock nuts are shown in the table below. For
standard installation, turn 15 to 30°using a
tool, after fastening by hand.
Pay attention not to over tighten the product for
the width across flats.
Caution
(1) Preparation before piping
Before piping is connected, it should be
thoroughly blown out with air (flushing) or washed
to remove chips, cutting oil, and other debris from
inside the pipe.
thread size of
Chamfered port size Φ D
(Recommended value)
3.1 to 3.4
5.1 to 5.3
Piping
Caution
(2) Winding of sealant tape
When screwing piping or fittings into ports, ensure
that chips from the pipe threads or sealing material
do not enter the piping. Also, if sealant tape is used,
leave 1 thread ridge exposed at the end of the
threads.
Warning
(1) Type of fluids
Please consult with SMC when using the product
in applications other than compressed air.
(2) When there is a large amount of drainage
Compressed air containing a large amount of
drainage can cause malfunction of pneumatic
equipment. An air dryer or water separator should
be installed upstream from filters.
(3) Drain flushing
If condensation in the drain bowl is not emptied on
a regular basis, the bowl will overflow and allow
the condensation to enter the compressed air
the
lines. This causes malfunction of pneumatic
equipment.
If the drain bowl is difficult to check and remove,
the installation of a drain bowl with an auto drain
option is recommended.
For compressed air quality, refer to the Best
Pneumatics No.6 catalog.
(4) Use clean air.
Do not use compressed air that contains
chemicals, synthetic oils that include organic
solvents, salts or corrosive gases, etc., as it can
cause damage or malfunction.
Caution
(1) Install an air filter.
Install an air filter upstream near the valve.
Select an air filter with a filtration size of 5μm or
smaller.
(2) Take measures to ensure air quality, such
as by installing an aftercooler, air dryer, or
water separator.
Compressed air that contains a large amount
of drainage can cause the malfunction of
pneumatic equipment, such as flow control
equipment.
measures to ensure air quality, such as by
providing an aftercooler, air dryer, or water
separator.
(3) Ensure that the fluid and ambient
temperatures air within the specified
range.
If the fluid temperature is 5℃ or less, the
moisture in the circuit could freeze, causing
damage to the seals or leading to equipment
malfunction.
measures to prevent freezing. For compressed
air quality, refer to the Best Pneumatics No.6
catalog.
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Piping
Air Supply
Therefore, take appropriate
Therefore, take appropriate