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3-Port Solenoid Valves
Precautions 4
Be sure to read this before handling products.
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Caution
1. Temperature of ambient environment
Use the valve within the range of the ambient temperature
specification of each valve. In addition, pay attention when
using the valve in environments where the temperature
changes drastically.
2. Humidity of ambient environment
•
When using the valve in environments with low humidity, take
measures to prevent static.
•
If the humidity rises, take measures to prevent the adhesion
of water droplets on the valve.
Operating Environment
Maintenance
Warning
1. Perform maintenance and inspection ac-
cording to the procedures indicated in the
operation manual.
If handled improperly, human injury and/or malfunction or
damage of machinery and equipment may occur.
2. Removal of equipment, and supply/exhaust of
compressed air
Before components are removed, first confirm that measures
are in place to prevent workpieces from dropping, run-away
equipment, etc. Then, cut off the supply air and electric
power, and exhaust all air pressure from the system using the
residual pressure release function.
For the 3-position closed center or double check valve types,
exhaust the residual pressure between the valve and the
cylinder.
When the equipment is operated after remounting or replace-
ment, first confirm that measures are in place to prevent the
lurching of actuators, etc. Then, confirm that the equipment is
operating normally.
In particular, when a 2-position double solenoid valve is used,
releasing residual pressure rapidly may cause the spool valve
to malfunction, depending on the piping conditions, or the
connected actuator to operate.
3. Low-frequency operation
Valves should be operated at least once every 30 days to
prevent malfunction. (Use caution regarding the air supply.)
4. Manual override
When a manual override is operated, connected equipment
will be actuated.
Operate only after safety is confirmed.
5. If the volume of air leakage increases or the
valve does not operate normally, do not use
the valve.
Perform periodic maintenance on the valve to
confirm the operating condition and check for
any air leakage.
Caution
1. Drain flushing
Remove drainage from the air filters regularly.
