SMC Networks VPX400 Series Operation Manual page 14

Be sure to read before handling.
As this product is not equipped with connection threads, it is
necessary to separately order spacers with bracket and piping
adapters. For product numbers, refer to the VPX catalog. Refer to
the specific product precautions on AC-D Series for how to handle
spacer with bracket and piping adapter.
• Tighten the hexagon head bolts of the spacer with bracket to the
corresponding tightening torque shown in the table below.
Hexagon head screw
Fig 7. Spacer with bracket
Spacer with bracket
Y300T-D
Y400T-D
Y600T-D
• For screwing-in of piping materials, refer to the specific product
precautions on FRL Series.
• If the pilot EXH port (PE) port of the valve is extremely narrowed or
blocked, the valve operation may become abnormal. Therefore, do
not block the port.
PE port
2. Environment
Warning
• Do not install the product at a location subject to radiant heat.
• Do not install the product in a location with strong magnetic field.
• Do not use the product at a location where surge occurs. If the
product is used at a location where surge occurs, malfunction or
failure may occur. Take appropriate measures before using the
product.
• When using a load that generates a surge voltage, take
appropriate countermeasures against surge. If surge voltages are
repeatedly applied, this may cause malfunction or failure.
• Do not install this product in other EMC environment than
"Industrial" environment in accordance with the standard
application range described in the .Declaration of Conformity.
• Products with IP65 enclosures are protected against dust and
water. However, note that they cannot be used under water.
• This product can be used in temperatures as cold as 0°C, but take
appropriate measures against solidification or freezing of
condensate, moisture, etc.
• The highest altitude for use of this product is 2,000 m above sea
level.
(25A-)VPX400 Series
3 port solenoid valve /
Specific Product Precautions 6
Fig 8. Piping adapter
Tightening
Applicable
torque
valve
(N·m)
VPX406-A3 1.2±0.05
VPX406-A4 1.2±0.05
VPX406-A6 2.0±0.1
3. Air supply
Warning
• Do not install any device that obstructs the safety function between
the valve and a protection system.
4. Noise
Caution
To protect workers from noise that temporarily occurs when the
valve is de-energized, we recommend that you install a silencer or
muffler on the valve.
When designing or testing an application system, make sure that
the safety function can be positively maintained in consideration of
the pressure drop in the silencer or device.
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No. DOC1092179