Datasheet

Caution
Operating Environment
Warning
1. Do not use in an atmosphere having corrosive gas-
es, chemicals, sea water, water, water steam, 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.
Maintenance
Warning
1. Filters and strainers
1) Be careful regarding clogging of filters and strainers.
2) Replace filter elements after one year of use, or earlier if the
pressure drop reaches 0.1 MPa.
3) Clean strainers when the pressure drop reaches 0.1 MPa.
2. Lubrication
When using after lubricating, never forget to lubricate
continuously.
3. Storage
In case of long term storage after use, thoroughly remove all
moisture to prevent rust and deterioration of rubber materials etc.
4. Exhaust the drain from an air filter periodically.
1. Removing the product
The valve will reach a high temperature when used with high
temperature fluids. Confirm that the valve temperature has
dropped sufficiently before performing work. If touched
inadvertently, there is a danger of being burned.
1) Shut off the fluid supply and release the fluid pressure in the
system.
2) Shut off the power supply.
3) Dismount the product.
2. Low frequency operation
Switch valves at least once every 30 days to prevent
malfunction. Also, in order to use it under the optimum state,
conduct a regular inspection once a half year.
1. If there is a possibility of reverse pressure being applied
to the valve, take countermeasures such as mounting a
check valve on the downstream side of the valve.
2. When problems are caused by a water hammer,
install water hammer relief equipment (accumulator
etc.), or use an SMC water hammer relief valve
(Series VXR). Please consult with SMC for details.
3. For pilot type 2-port solenoid valves, when the valve
is closed, sudden pressure resulting from the startup
of the fluid supply source (pump, compressor, etc.)
may cause the valve momentarily to open and
leakage to occur, so please exercise caution.
4.
If the product is used in the conditions in which rapid
decrease in the inlet pressure of the valve and rapid
increase in the outlet pressure of the valve are repeated,
excessive stress will be applied to the diaphragm, which
causes the diaphragm to be damaged and dropped,
leading to the operation failure of the valve. Check the
operating conditions before use.
Operating Precautions
Warning
Caution
1. As a rule, use electrical wire with a cross sectional
area of 0.5 to 1.25 mm
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for wiring.
Furthermore, do not allow excessive force to be
applied to the lines.
2. Use electrical circuits which do not generate chat-
tering 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 electri-
cal circuitry, install a surge voltage suppressor etc.,
in parallel with the solenoid. Or, adopt an option
that comes with the surge voltage protection cir-
cuit. (However, a surge voltage occurs even if the
surge voltage protection circuit is used. For details,
please consult with SMC.)
Wiring
Warning
1. Do not apply AC voltage to Class “H” coil AC type
unless it is built in full-wave rectifier, or the coil will
be damaged.
Series VXZ
Specific Product Precautions 4
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
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