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No.VP500-OMZ0005
Design/Selection
4. Operation in low temperature conditions
It is possible to operate a valve in extreme temperatures, as low
as
–10°C. Take appropriate measures to avoid the freezing of
drainage, moisture, etc., in low temperatures
5. Mounting orientation
The Mounting orientation is free.
6. Initial lubrication of main valve
The initial lubricant has already been applied to the main valve.
7. For the pilot EXH port (breathing hole)
If the valve pilot EXH port (breathing hole) is restricted extremely
or blocked, abnormal operation of the valve may occur.
Mounting
1. Operation manual
Install the products and operate them only after reading the
operation manual carefully and understanding its contents. Also,
keep the manual where it can be referred to as necessary.
2. Ensure sufficient space for maintenance activities.
When installing the products, allow access for maintenance and
inspection.
3. Tighten threads with the proper tightening torque.
When installing the products, follow the listed torque specifications.
4. If air leakage increases or equipment does not
operate properly, stop operation.
Check mounting conditions when air and power supplies are connected.
Initial function and leakage tests should be performed after installation.
5. Painting and coating
Warnings or specifications printed on or affixed to the product should not
be erased, removed, or covered up.
Please consult with SMC before applying paint to resinous parts, as this
may have an adverse effect due to the solvent in the paint.
Piping
1. Refer to the Fittings and Tubing Precautions for
handling One-touch fittings.
2. Refer to F.R.L/Common Precautions for screwing
in piping materials.
3. For handling of silencers, refer to AN Series/Product
Specific Precautions.
4. For handling of spacer with bracket, refer to AC-D
Series/Product Specific Precautions.
Wiring
1. The valve is an electrical product. For safety, install
an appropriate fuse and circuit breaker before use.
1. Polarity
There is no polarity.
2. Applied voltage
When electric power is connected to 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.
4. External force applied to the lead wire
If an excessive force is applied to the lead wire, this may cause
faulty wiring. Take appropriate measures so that a force of 30 N
or more is not applied to the lead wire.
When instructions are given in the Specific Product Precautions,
follow these specifications.
Lubrication
1. Lubrication
1) Have been lubricated for life by the manufacturer and therefore do
not require lubrication while in service.
2) If a lubricant is used in the system, use class 1 turbine oil (no
additives), ISO VG32. For details about lubricant manufacturers’
brands, refer to the SMC website. Additionally, please contact SMC
for details about class 2 turbine oil (with additives) 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 Safety Data Sheet (SDS) of the oil.
2. Lubrication amount
If the lubrication amount is excessive, the oil may accumulate inside
the pilot valve, causing malfunction or response delay.
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 the 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. This may cause the 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 SMC Best Pneumatics catalog.
3/4/5-Port Solenoid Valves
Precautions 2
Be sure to read this before handling products.
