SMC Networks AWM20-01 Series Operation Manual page 8

Warning
(1) Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to
remove chips, cutting oil and solid foreign material from inside the pipe. Contamination of piping
may cause damage or malfunction.
(2) When screwing together pipes and fittings, etc., be certain that chips from the pipe threads and
sealant do not get inside the pipe. When a sealant tape is used, leave 1 thread ridges exposed at
the end of the threads.
(3) Connect piping/fittings using the recommended torque while holding the female thread side tightly.
Insufficient tightening torque leads to cause of loosening or sealing failure, and excessive
tightening torque leads to cause of breakage of screws. Tightening without holding female thread
applies an excessive force to the piping bracket directly, leading to breakage.
Recommended tightening torque
of tube connection port
Thread size
Torque 3 to 5
Recommended tightening torque of
pressure gauge connection port
Unit: N m
Thread size
Torque 3 to 5
(4) Before using an SMC fitting and S coupler, please refer to "Tightening the threaded portion of the
connection thread" of the Fittings & Tubing Precautions.
(5) Do not apply torsion or bending moment other than the weight of the product itself. External piping
needs to be supported separately as it may cause breakage. Non-flexible piping like steel tube is
susceptible to excessive moment load or vibration. Insert flexible tubes to prevent this.
(6) Drain guide is not equipped with valve function. Be sure to connect piping for drain. No piping for
drain allows the drain and compressed air to exhaust freely. Also, the piping installation should be
performed with drain guide held by spanner to prevent breakage of bowl.
(7) The piping for drain from auto drain should be connected under the following requirements to avoid
operating failure.
Tubing for AD27-D: I.D. ø2.5 (ø3/32") or larger, Length 5 m (200 inch) or shorter
Tubing for AD37, 47(N)-D: I.D. ø4 (ø3/16") or larger, Length 5 m (200 inch) or shorter
Tubing for AD38, 48(N)-D: I.D. ø6.5 (ø1/4") or larger, Length 5 m (200 inch) or shorter
Warning
(1) Use clean air. Do not use compressed air containing chemicals, organic solvent, synthetic oil or
corrosive gas as it may be cause of breakage of components or operation failure.
(2) Air containing too much moisture may cause malfunction. Install an air drier or aftercooler before
the product.
Caution
(1) When the element becomes clogged at an early stage, please check the air quality. In addition,
early clogging can be prevented by attaching a pre-filter on the inlet side of the product.
1/8 1/4 3/8
8 to 12 15 to 20 20 to 25
1/8
Piping
Unit: N m
1/2
Air Source
-7-