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VG300**-OMH0006-A
Piping
1. Prior to 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.
2. 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 pipe tape is used, leave 1 thread ridge exposed at
the end of the threads
3.Connection of fittings
When screwing the fitting into the valve, tighten it as
follows.
(1) When installing SMC fittings, follow the procedures
below.
Rc thread
Tighten with the proper torque shown below.
Tightening Torque for applicable piping
Thread
Proper tightening torque
(Nm)
Rc 1/8
7 to 9
Rc 1/2
28 to 30
Rc3/4
28 to 30
Rc1
36 to 38
(2) Follow the procedures of the manufacturer when
fittings other than SMC are used.
4. Piping to products
When connecting piping to a product, refer to its
operation manual to avoid mistakes involving the supply
port, etc.
Lubrication
Lubrication
1. The product has been lubricated for life by the
manufacturer, and does not require additional
lubrication while in service.
2. If a lubricant is used in the system, use class 1 turbine
oil (no additive), ISO VG32. Once lubricant is utilized
within the system, since the original lubricant applied
within the product during manufacturing will be washed
away, please continue to supply lubrication to the
system. Without continued lubrication, malfunctions
could occur.
If turbine oil is used, refer to the Material Safety Data
sheet (MSDS) of the turbine oil.
3. Please contact SMC regarding Class 2 turbine oil (with
additives), ISO VG32.
Air Supply
(1) Type of fluids
Please contact SMC when using the product in
applications other than with compressed air.
(2) When there is a large amount of condensate
Compressed air containing a large amount of drainage
can cause malfunction of pneumatic equipment. An air
dryer or water droplet separator should be installed
upstream from the filters.
(3) Drain flushing
If condensate in the drain bowl is not emptied on a regular
basis, the bowl will overflow and this may cause the
malfunction of pneumatic equipment. If the drain bowl is
difficult to check and remove, installation of a drain bowl
with an auto drain option is recommended.
For detailed information regarding the quality of the
compressed air described above, refer to SMC's "Air
Cleaning Systems".
(4) Types of air
Do not use compressed air which contains chemicals,
synthetic oils containing organic solvents, salts or
corrosive gases, etc., as this can cause damage or a
malfunction.
VGA342R Series
3-port air operated valve / Precautions (2)
Make sure to read this before handling.
Caution
Warning
Warning
