OPERATION
270727EI.DOCX 17200295_002_C0/2016 - © Leybold 23/40
5 Operation
Standard valves see chapter «1.3 Validity of the user manual».
For special valves which are not listed in chapter «1.3 Validity of the user manual» the
product data sheet is applicable in addition.
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
CAUTION
Hot surfaces
Risk of burning when touching hot surfaces.
Take safety measures in order that the valve cannot be touched during
operation.
If the valve is operated under harsh or dirty conditions, it should be cleaned / maintained
before the specified service time has been reached.
5.1 Normal operation
Valve is closed by a spring (NC) and opened pneumatically.
5.2 Operation under increased temperature
See chapter «1.4 Technical data».
5.3 Behavior in case of air pressure drop
Valve closed: Valve remains closed and leaktight.
Valve open: Valve will be closed leaktight by a spring.
5.4 Behavior in case of power failure
Valve will be closed leaktight by a spring.
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