1. Actuator drive
When a component such as a solenoid valve or actuator is to
be driven using this product, take appropriate measures to pre-
vent potential danger caused by actuator operation.
2. Holding of pressure
Since the products are subject to air leakage (allowed), they
cannot be used for applications such as holding pressure in a
pressure vessel.
3. Maintenance space
The installation should allow sufficient space for maintenance
activities.
Selection
Design
Warning
1. Leakage voltage
Particularly when using a C-R element (surge voltage suppres-
sor) for protection of the switching element, take note that lea-
kage voltage will increase due to leakage current flowing
through the C-R element, etc.
2. Low temperature operation
Although the valve can be operated at a temperature as low as
0
°
C, measures should be taken to avoid solidification or free-
zing of drainage and moisture, etc.
Caution
AC coil is 20% or less of rated voltage.
DC coil is 3% or less of rated voltage.
Switching element
Resistor
OFF
Leakage current
Valve
Power
supply
1. Confirm the specifications.
The products presented in this catalog are designed only for
use in compressed air systems. Do not operate at pressures or
temperatures, etc., beyond the range of specifications, as this
can cause damage or malfunction.
(Refer to specifications.)
Contact SMC when using a fluid other than compressed air.
2. Extended periods of continuous energization
Contact SMC if valves will be continuously energized for
extended periods of time.
3. Operation of closed centre solenoid valves
When closed center solenoid valves are used, or when used on
an actuator with a load factor of 50% or more, jumping
(lurching) cannot be prevented even if this product is used.
4. Using a regulator on the secondary side
When mounting a regulator on the secondary side (A port side),
use a residual pressure relief regulator (AR2550 to 4050) or a
check type regulator (AR2560 to 6060).
With a standard regulator (AR1000 to 6000), the secondary
side pressure may not be released when this valve is
exhausted.
5. Operation of secondary side solenoid valves
To operate solenoid valves mounted on this product's
secondary side (A port side), first confirm that the secondary
side's pressure (P) has increased to become equal to the
primary side's pressure (P).
6. Operation
The residual pressure release function of this product is for
emergency use only; therefore, avoid operation in the same
manner as ordinary 3 port valves.
7. Using a lubricator
If mounting a lubricator, mount it on the primary side (P port
side), of this product. If mounted on the secondary side (A port
side), back flow of oil will occur and may spurt out of the valve's
R port.
8. Operation for air blowing
This product cannot be operated for air blowing due to the me-
chanism that switches the main valve to be fully open after the
secondary side's pressure increases to approximately 1/2 of the
primary side.
Selection
Warning
1. If air leakage increases or equipment does
not operate properly, stop operation.
After mounting or maintenance, etc., connect the compressed
air and power supplies, and perform appropriate function and
leakage tests to confirm that the unit is mounted properly.
2. Instruction manual
Mount and operate the product after reading the manual care-
fully and understanding its contents. Also keep the manual
where it can be referred to as necessary.
3. Painting and coating
Warnings or specifications printed or pasted on the product
should not be erased, removed or covered up.
Furthermore, contact SMC before paining resin parts, as this
may cause adverse effects depending on the solvent.
Mounting
Warning
1. To perform the initial speed adjustment of a
secondary side actuator, supply air from this
valve's primary side and turn ON the pilot
valve. Then, rotate the needle counter clock-
wise from the fully closed condition.
Adjustment
Caution
Leakage
voltage
AV2000/3000/4000/5000
Specific Product Precautions 1
Be sure to read before handling.
Refer to page 7 for safety instructions.
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