SMC Networks VGA342R Series Operation Manual page 7

Make sure to read this before handling.
Air Supply
Caution
1. When low dew point air is used as the fluid,
degradation of the lubrication properties inside
the equipment may occur, resulting in reduced
reliability (or reduced service life) of the
equipment. Consider using products
compatible with low dew points such as those
from the 25A- series.
2. Install an air filter.
Install an air filter upstream near the valve.
Select an air filter with a filtration size of 5μm or smaller.
3. 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 malfunction of pneumatic equipment such as valves.
Therefore, take appropriate measures to ensure air quality,
such as by providing an aftercooler, air dryer, or water
separator.
4. If an excessive amount of carbon powder is
present, install a mist separator on the
upstream side of the valve.
If excessive carbon dust is generated by the compressor, it may
adhere to the inside of a valve and cause it to malfunction. For
compressed air quality, refer to SMC Best Pneumatics catalog.
VGA342R Series
3-port air operated valve / Precautions (3)
Operating Environment
Warning
1) Do not use in an atmosphere containing corrosive gases,
chemicals, sea water, water, water steam, or where there is
direct contact with any of these.
2) Do not use in an environment where flammable gas or
explosive gas exists. Usage may cause a fire or explosion.
The products do not have an explosion proof construction.
3) Do not use in a place subject to heavy vibration and/or
shock.
4) The valve should not be exposed to prolonged sunlight.
Use a protective cover. Note that the valve is not for
outdoor use.
5) Remove any sources of excessive heat.
6) If it is used in an environment where there is possible
contact with oil, weld spatter, etc., exercise preventive
measures.
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.
- 6 -
No.VG300-OMH0006-B