Commissioning; Operation - Festo VZWM Notice D'utilisation

VZWM
7

Commissioning

Please note
The VZWM diaphragm valve is operated via the integrated 2/2−way pilot
control.
S Use a suitable coil foractuating the solenoid armature
(è chapter 10 Accessories).
Take into account the fact that when the pressure is switched on suddenly, the
S
valve will open briefly. The output side must therefore be connected.
Function test using incompressible media
Fill the tubing system with the medium used.
S
Function test using all media
Apply the desired input pressure to the diaphragm valve (e. g. 6 bar).
S
The valve will then be closed.
Note the maximum permitted rated pressure (è chapter 12 Technical
specifications).
8

Operation

Make sure that the minimum difference in pressure for switching between the
S
input and output of the diaphragm valve is available (è chapter 12 Technical
specifications).
Using compressed air with a medium temperature < 1 °C:
Avoid the dew point being reached.
S
If the dew point is reached, the diaphragm will ice up and become stiff. The set
switching values of the valve will then be modified.
If necessary, use dried compressed air.
S
Festo VZWM 0612NH English
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