GEA VARIVENT Vacuum Valve V, Руководство по эксплуатации

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Installation and Commissioning
Commissioning
26
Operating Instructions · VARIVENT
®
Vacuum Valve V
Edition 2016-06-30
Commissioning
During commissioning and in other unpressurized processes in tanks or pipelines the
vacuum valve opens if the tank/the pipe are emptied and solely the vacuum valve
ensures pressure compensation. This effect can also occur during unpressurized
cleaning. Cleaning solution can escape when the valve opens. This behaviour is quite
normal and not due to malfunction.
Before starting commissioning observe the following:
• Make sure that there are no foreign materials in the system.
• Actuate the valve once by applying compressed air.
• Clean the pipe system prior to the first product run.
• During commissioning, regularly check all sealing points for leaks. Replace defective
seals.
NOTE
When sticky media are used, lift the valve disk during cleaning. This is the only way to
prevent parts sticking together so that the valve remains functional.