SMC Networks SX3000 Series Operation Manual Download Page 8

Page: 8 / 17

Lubrication

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.

2. Lubrication amount

If the lubrication amount is excessive, the oil may accumulate

inside the pilot valve, causing malfunction or response delay. So,

do not apply a large amount of oil. When a large amount of oil

needs to be applied, use an external pilot type to put the supply

air on the pilot valve side in the non-lube state. This prevents the

accumulation of oil inside the pilot valve.

Air Supply

Type of fluids

Please consult with SMC when using the product in applications
other than compressed air.

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.

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 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 compressed air quality, refer to SMC’s Best Pneumatics
catalog.

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.

When extremely dry air is used as the fluid,

degradation of the lubrication properties in side the
equipment may occur, resulting in reduced reliability
(or reduced service life) of the equipment. Please
consult with SMC.

Install an air filter.

Install an air filter upstream near the valve. Select an air filter
with a filtration size of 5

㎛

or smaller.

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.

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’s Best Pneumatics
catalog.

Operating Environment

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