- - 6 - -
- 6 -
VFR6000-OMA0001-B
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.
2. Wrapping of pipe 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. Closed center type
For closed center type, check the piping to prevent air
leakage from the piping between the valve and the
cylinder.
4. Connection of fittings
When screwing fittings into valves, tighten as follows.
Rc
Tighten with the proper torque shown below.
Tightening Torque for Piping
Connection thread
Proper tightening torque (N
・
m )
Rc1/8
7 to 9
Rc3/4
28 to 30
Rc1
36 to 38
Follow the procedure of the manufacturer when fittings
other than SMC is used.
Wiring
1. Polarity
There is no polarity.
2. Applied voltage
When electric power is connected to a solenoid valve, be
careful to apply the proper voltage. Improper voltage may
cause malfunction or coil damage.
3. Check the connections.
Check if the connections are correct after completing all
wiring.
1. Lubrication
1) The valve has been lubricated for life by the factory, and
does not require any further.
2) If a lubricant is used in the system, use class 1 turbine oil
(no additive), ISO VG32.
Once a lubricant is used in the system, lubrication must
be continued because the original lubricant applied
during manufacturing will be washed away.
If turbine oil is used, refer to the Material Safety Data
Sheet (MSDS) of the oil.
3) Please contact SMC regarding class 2 turbine oil (with
additives), ISO VG32.
Air Supply
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 lines. It causes
malufunction 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 compressed air quality, refer to SMC’s Best Pneumatics
catalog.
4. Use clean air.
Do not use compressed air that contains chemicals,
synthetic oils including organic solvents, salt or corrosive
gases, etc., as it can cause damage or malfunction.
Piping
Lubrication
VFR6000 Series
5 Port Solenoid Valve / Precautions 3
Be sure to read before handling.
Caution
Warning
Caution
Warning
