2-12
2-3-2 Pneumatic Piping Connection
This section describes how to supply the air for the device to drive the actuator.
1) Air supply system
Supply air must be clean and dry to stably use the device for a long time. A typical
example of an air supply system is shown in the figure below.
Supply air piping
Output air
piping
Shutoff
valve
Regulator
with filter
Figure 2-14 Air Supply System
2) Supply air
Use supply air that conforms to the instrumentation air standards (on page 2-2).
3) Regulator with filter
• The regulator with filter is used to adjust the pressure of the supply air to the device.
• Install this valve as close to the main unit of the device as possible.
• The control valve can be manually operated by using the A/M switching function. (The
double-acting actuator does not support manual operation.)
• Use a 3-μm or finer filter.
• The filter removes solid materials from supply air.
• If the filter is not equipped, separately insert a (3-μm or finer) filter immediately before
the regulator.
• Install the regulator so that the drain faces downward.
• If you select the built-in Azbil regulator KZ03, the filter is built into the device before
shipment.
4) Shutoff valve
• The shutoff valve is used to temporarily stop supplying air to the device.
• With this valve, the device or control valve can be removed without having to stop the
whole air supply system during maintenance or other operations.
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