31
Installation and Commissioning
Commissioning
Commissioning
Checks Prior to Commissioning
Before starting commissioning observe the following:
Mechanical
•
Check that all visible screws are firmly secured.
•
Make sure that there are no foreign materials in the system.
•
Check that all movable parts of the control valve can move freely.
•
Clean the pipe system prior to the first product run.
•
Check the pipe connections for proper installation and tightness.
•
During commissioning, regularly check all sealing points for leaks. Replace defective
seals.
Pneumatic
•
Check the compressed air system for proper installation and tightness.
•
Check whether the compressed air pressure is correct and max. 6 or 7 bar
(depending on the positioner).
•
Let the valve switch once.
Electrical
•
Check whether all electrical connections are in accordance with the wiring diagrams.
Testing the Valve Function Without Product
Carry out the following steps:
1.
Actuate the control valve by means of compressed air or signal current and let it
switch once.
2.
Check whether the type of action and the valve stroke are correct, see “Valve Stroke
Table“ (page 32).
3.
Clean the system.
Done
