Piping
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. Contamination of piping may cause damage or malfunction.
When a sealant tape is used, leave 1.5 to 2 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.
(4) Do not apply a spanner to the pressure switch body during piping. Otherwise, the product may be
damaged.
(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.
Air Source
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.
Operating Environment
Warning
(1) This product uses a reed switch.
Therefore, the product may malfunction in a magnetic field. Do
not use the product where it is affected by magnetism.
(2) This product is not hermetic. Therefore, avoid installation in a place where it is exposed to water
and oil entering into the product, causing malfunction and damage due to corrosion of the
electrical circuit. Do not use the product in a place where the product could be splashed by water
or oil.
Pressure switch
Recommended tightening torque Unit: N m
Thread size
1／8
1／4
3／8
1／2
3／4
1
1 1/4
1 1/2
Torque
7 to 9
12 to 14 22 to 24 28 to 30 28 to 30 36 to 38 40 to 42 48 to 50
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