www.yoshitake.jp
12
12
-6
Air Operated V
alve/Contr
ol V
alve
Air Operated Valve/Control Valve
Step
3
Guidelines for Installing Air Operated Valve
Warning and caution for installation
Piping example
Speed
controller
Pressure
gauge
Strainer
(60 mesh)
Stop
valve V
1
PD-3 Air
operated valve
Stop
valve V
2
Pressure
gauge
Pressure
gauge
Stop
valve V
3
3/2 way solenoid
valve DD-37
PRV with filter
GD-37
Air motive pressure
Bypass
Union
Union
Union
1. Before connecting the product to piping, remove foreign substances and scales inside the piping. Note that
the seal material must not flow into the inside of the product.
* Contamination of foreign substances can cause valve seat leakage and malfunction.
2. When installation, check the direction of the product so that the fluid flowing and the arrow marked on the
product are in the same direction.
3. As shown in the above figure, it is recommended that stop valves, strainers, pressure gauges and bypass
line to be installed to the piping. For screwed valve, a union joint is recommended to install for easy
maintenance and inspection.
4. Make sure to install a strainer with the mesh size 80-100mesh at the inlet side of the product.
5. Avoid over-tightening of screw and excessive stress imposed from the piping in order to prevent malfunction
due to the distortion of the body.
6. Secure a space required for disassembly or removal of the product at the time of maintenance and
inspection.
<PD-1, 2>
· Installation posture
Install the air operated valve vertically (the air
pressure inlet port must be faced upward).
Any direction is possible.
<PD-3>
WRONG
O.K.
WRONG
WRONG
O.K.
O.K.
O.K.
O.K.