DG - 10/2019
http://www.end.de
27
Starting
6 Starting
Before starting the pressure actuated valve DGxx, you have to read
Safety advice
If you have not do this until now, read these important advices now and turn back to this page.
The starting of a pressure actuated valve, which is mounted in a plant (e.g.. in a refinery or in a
chemical plant) should only happen in accordance with the instructions of the hole plant!
Switch on the supplying with compressed air and the voltage of control.
Actuate the pressure actuated valve by hand with the control and check the correct function of
the valve.
Check all pipe connections for tightness.
Check all the pilot lead for tightness.
Check the function of the accessory units.
7
Failure
If during, the test run or during operation a functional fault of the pressure actuated valve should
occur, please observe also:
Safety advice
If necessary, inform the shift foreman / safety engineer or the manager about the disturbance
without delay in order, for example, to avoid an outflow / overflow of chemicals or a discharge
of gases in good time by means of suitable measures!
Next, using the following list (7.1 Failure causes), attempt to find the reason for the causes of the
failure and, if it lies within your capabilities, to correct this.
Do not try to repair the pressure actuated valve!
Isolate the failed pressure actuated valve frome the power supply and disconect the pilot pres-
sure port!
In case of defect in the valve make contact with the supplier.
The telephone number will be found on the back cover of these mounting and installation
manuel.
7.1
Failure causes
• Is the power supply to the control switched on?
• Is the device for the compressed-air switched on?
• Are the leads from the controller to the pressure actuated valve undamaged?
• Are the leads from the controller to the pilot valve undamaged?
