Employ a safe design so that the following type
of unexpected conditions will not occur.
Warning
1. Design so that high temperature compressed
air does not flow to pneumatic equipment.
In case of cooling equipment failure (stoppage of cooling water
in water cooled type after cooler, stoppage of fan motor in air
cooled type after cooler, etc.) on the air supply side, high tem-
perature compressed air can flow downstream and cause dam-
age or malfunction of downstream equipment.
2. Use a design that allows for stoppage of the
compressed air supply.
Compressed air flow may be stopped by freezing of a refriger-
ated air dryer or malfunction of the switching valve (heatless
dryer).
Caution
1. Use a design that prevents reverse pressure
and back flow.
Reverse pressure and back flow can cause equipment damage
or malfunction, etc.
Give attention to safety measures, including handling proce-
dures.
Warning
1. When selecting equipment, first adequately
confirm the purpose for which it will be used,
the required specifications and the operating
conditions (pressure, flow rate, temperature,
environment), etc. Then select equipment
from the latest catalogs without exceeding
the specification ranges. Contact SMC in ad-
vance regarding any questions.
2. Do not use for breathing apparatus for divers,
respiration, respiration, medical treatment or
for blowing of medicine or food products
which will enter human body.
This cleaning equipment is exclusively for use with industrial
compressed air, and should not be used for other applications.
If other application is unavoidable, give attention to safety
measures and contact SMC in advance.
3. This product cannot be used on vehicles or
vessels.
This product cannot be used on vehicles, vessels or other
transportation devices, because vibration will cause damage. If
this type of use is unavoidable, contact SMC in advance.
Caution
1. Do not allow flow greater than the rated flow
rate.
If the flow exceeds the rated flow rate even momentarily, this
can cause drainage and oil to be sprayed downstream or cause
damage, etc.
2. The product cannot be used with low pres-
sure air (blowers).
Operating below the minimum operating pressure can cause re-
duced performance and malfunction. If this type of use is un-
avoidable, contact SMC in advance.
Caution
1. Confirm the mounting orientation.
Since the mounting orientation is different for each piece of
equipment, this should be confirmed either in this catalog or in
the instruction manual. Mounting in a tilted orientation can
cause faulty drainage discharge, auto drain malfunction and
damage in some types of equipment.
2. Ensure sufficient maintenance space.
When installing and mounting, be sure to allow the space re-
quired for maintenance and inspections. Confirm the necessary
maintenance space in the instruction manual for each piece of
equipment.
Caution
1. Preparation before piping
Before piping is connected, it should be thoroughly blown out
with air (flushing) or washed to remove chips, cutting oil and
other debris from inside the pipe.
2. Wrapping of pipe tape
When screwing together pipes and fittings, etc., be certain that
chips from the pipe threads and sealing material do not get in-
side the piping.
Furthermore, when pipe tape is used, leave 1.5 to 2 thread
ridges exposed at the end of the threads.
3. Implement measures to prevent drainage
from collecting inside piping.
Drains should be installed in the lower sections of piping that
rises, or piping should be designed with a slight taper provided
along the direction of flow so that drainage will not accumulate.
4. Confirm IN and OUT ports.
When piping is being installed, take care to prevent incorrect
connection of the water and air sides, or the IN and OUT ports.
Precautions on Design
Selection
Mounting
Piping
Selection
Series
IDUS/IDFS
Air Preparation Equipment Precautions 1
Be sure to read before handling.
10
Approved
IDUS/IDFS 5/23/02 2:18 PM Page 12
