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Precautions for Design
Warning
1) Carefully consider the application, required specifications, and operating conditions (pressure, flow
rate, temperature, environment and power supply) in accordance with the latest catalog (SMC
website), making sure not to exceed the specification range.
2) Consult SMC if no leakage is allowed due to the environment, or if the operating fluid is not air.
3) This product cannot be used in the following environments.
- Atmosphere containing corrosive gas, organic solvent, or chemical agent solution is, or a location
where any of these substances is attached.
- Atmosphere containing with sea water or water or containing steam, or a location where any of
these substances is attached.
- Locations subject to direct sunlight (Block direct sunlight to the product to prevent deterioration due
to ultraviolet rays or temperature rise).
- Where the product is exposed to heat sources or in areas that the product is exposed to radiant
heat.
- Where impact or vibration is present.
- In a location with high humidity and a large quantity of dust.
- Outdoor.
- Mounting on vehicle or vessel (The product may be damaged due to excessive vibration).
Note) The display window of the element service indicator of semi standard products is made of
nylon.
4) For air blow applications, prevent airborne particles from the operating environment entering into the
compressed air stream, or foreign matter may adhere to the workpiece during the air blow.
5) If the air equipment is mounted on the outlet of the product, particles will be generated from the
equipment and required cleanliness may not be obtained. Instead, install the air equipment at the
inlet.
Caution
1) Applications in which the difference between the inlet and outlet pressure exceeds 0.1MPa must be
avoided. Or the element is broken.
Selection
Warning
1) Grease is used on the internal sliding parts and seals. The grease may flow to the outlet side. If this
is not acceptable, please consult SMC.
2) Select the model so that the maximum discharge value (instantaneous) of the flow rate will not
exceed the rated air capacity. If the flowrate exceeds the maximum air flow capacity, it may cause
spillage of drainage and oil to the outlet side, and damage equipment downstream.
3) N.O. type auto drain should be operated under the following conditions to avoid operating failure.
Operating compressor: 0.75kW or more. Discharged flow rate: 100L/min (ANR) or more. When
using 2 or more auto drains, multiply the value above by the number of auto drains to find the
capacity of the compressors you will need. For example, when using 2 auto drains, 1.5kW (200L/min
(ANR)) of the compressor capacity is required. The operating pressure should be 0.1 MPa or more.
4) Use the N.C. type auto drain at the operating pressure of 0.15MPa or higher to prevent malfunction.
Caution
1) Do not use the product with low air pressure (e.g. for blower). This product is dedicated for
compressed air whose minimum operating pressure is specified depending on the equipment. If the
product is operated at a pressure lower than the minimum operating pressure, it may cause
deterioration in the performance or malfunction.
