Caution
(1) Please install the product in a location where pulsation is unlikely to occur. When the difference
between the inside and outside exceeds 0.1MPa, the element might be broken.
(2) AD27-D with auto drain may have leakage of accumulated drain during pressure exhaust (this
leakage is allowed in their constructions and not considered failure). Be sure to connect piping for
drain.
Selection
Warning
(1) Grease used on the internal sliding parts and seals may flow to the outlet side. If this is not
acceptable, please consult SMC.
(2) N.O. type auto drain should be operated under the following conditions to avoid malfunction.
Operating compressor: 0.75 kW or more, Discharged flow rate: 100 L/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, 1.5 kW
(200 L/min (ANR)) of the compressor capacity is required. The operating pressure should be 0.1
MPa or more.
(3) N.C. type auto drain should be operated under the following conditions to avoid malfunction.
Operating pressure for AD27: 0.1 MPa or more, for AD37 and AD47: 0.15 MPa or more.
Caution
(1) Do not allow the fluid flow more than the rated flow rate. If the rated flow rate is momentarily
exceeded, it may cause splashing of drainage and oil on the outlet side, and damage to the
equipment.
(2) Do not use the product with low air pressure (e.g. for blower). The product is for compressed air
that the minimum operating pressure is specified depending on the equipment. If it is operated
with the pressure lower than the minimum operating pressure, it may cause deterioration in the
performance or operation failure.
Installation
Warning
(1) Do not drop or apply impact during transportation or installation. It will cause damage to the product
and result in operation failure.
(2) Do not install in areas of high humidity or high temperature. Operation outside of the product
specification range may cause damage to the product or operation failure, or shorten the product
life.
(3) Connect the product ensuring the direction of "1"(IN) and "2"(OUT) for air direction and indicated
arrow. Incorrect connections may cause malfunction.
(4) Install with adequate space for maintenance beneath the product. Refer to the section [12.
Dimensions] (P28) for necessary space.
(5) Install vertically so that outlet of drain is downward. It cannot be used in horizontal or upward
direction as it may cause operation failure.
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