7 COMMISSIONING, DECOMISSIONING, MAINTENANCE
Revision status: 03/05/2022 16 Index number: D0-116
7 COMMISSIONING, DECOMMISSIONING, MAINTENANCE
7.1 Commissioning
Before commissioning, compare the operating data and materials of the valve with those of
the piping system. This allows the durability of the system to be checked. In the case of new
systems or repairs, the entire piping system must be rinsed to remove foreign substances
from the system. Before commissioning, ensure that the valve is properly installed and all
connections are properly connected. No work may be carried out on the valve during its
operation.
7.2 Decommissioning
During decommissioning and long downtimes, media that change their aggregate state must
be drained or removed from the system. If necessary, the system must be flushed out.
7.3 Maintenance
AWS disco check valves are maintenance-free. However, they can be checked for function
and safety to avoid unforeseen downtimes. The interval time is to be determined by the
operator.
Danger due to work on the system
During operation, no work (e.g. maintenance work) may
be carried out on the valve.
7.4 Remove pollutants
When working on the valve, there is a risk of coming into contact with hazardous substances.
The following warnings must be observed:
Danger from contaminants on the valve due to use in
contaminated areas
Work on contaminated valves is only permitted for
qualified personnel.
The valve must be completely decontaminated before
any work is performed on it.
The required protective equipment must always be worn
in the contaminated area. In addition, all safety
measures must be followed when handling the
respective hazardous substances.
Plastic parts may be so heavily contaminated that
cleaning is no longer sufficient.
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