Datasheet

Recommended
Unacceptable
Fig. 2 Binding tubes with bands
Fig. 1 Recommended piping configuration
Straight
portion
Mounting
pitch
A
Recommended Piping Conditions
1. When connecting tubes using one-touch fittings,
provide some spare tube length shown in Fig. 1,
recommended piping configuration.
Also, do not apply external force to the fittings when binding
tubes with bands etc. (see Fig. 2.)
4. When connecting piping to a product
Avoid mistakes regarding the supply port etc.
5. If the regulator and solenoid valve are connected
directly, chattering may occur as both of them
generate vibration. Do not connect them.
6. If the effective area of piping on the fluid supply
side is restricted, the operation may become
unstable due to differential pressure fluctuation
during valve operation. The piping on the fluid
supply side should match the port size of the valve.
Tightening Torque for Piping
Connection thread
Rc1/8
Rc1/4
Rc3/8
Rc1/2
Rc3/4
Rc1
7 to 9
12 to 14
22 to 24
28 to 30
36 to 38
Proper tightening torque [N·m]
Piping
Caution
3. Always tighten threads with the proper tightening torque.
When attaching fittings to valves, tighten with the proper
tightening torque shown below.
Series VXD
Specific Product Precautions 3
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website, http://www.smcworld.com
Tube
size
Mounting pitch
A
Unit: mm
Nylon tube Soft nylon tube Polyurethane tube
44 or more
84 or more
89 or more
112 or more
140 or more
168 or more
35 or more
66 or more
70 or more
88 or more
110 or more
132 or more
25 or more
39 or more
57 or more
52 or more
69 or more
88 or more
Straight
portion length
ø1/8"
ø6
ø1/4"
ø8
ø10
ø12
16 or more
30 or more
32 or more
40 or more
50 or more
60 or more
Wiring
Caution
1. As a rule, use electrical wire with a cross sectional
area of 0.5 to 1.25 mm
2
for wiring.
Furthermore, do not allow excessive force to be
applied to the lines.
2. Use electrical circuits which do not generate
chattering in their contacts.
3. Use voltage which is within ±10% of the rated
voltage. In cases with a DC power supply where
importance is placed on responsiveness, stay within
±5% of the rated value. The voltage drop is the value
in the lead wire section connecting the coil.
4. When a surge from the solenoid affects the electrical
circuitry, install a surge voltage suppressor, etc., in
parallel with the solenoid. Or, adopt an option that
comes with the surge voltage protection circuit.
(However, a surge voltage occurs even if the surge
voltage protection circuit is used. For details, please
consult with SMC.)
Operating Environment
Warning
1. Do not use in an atmosphere having corrosive
gases, chemicals, sea water, water, water vapor, or
where there is direct contact with any of these.
2. Do not use in explosive atmospheres.
3. Do not use in locations subject to vibration or
impact.
4. Do not use in locations where radiated heat will be
received from nearby heat sources.
5. Employ suitable protective measures in locations
where there is contact with water droplets, oil or
welding spatter, etc.
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