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Note
The control valve was checked by SAMSON
before it left the factory.
− Certain test results certified by SAMSON
lose their validity when the valve is
opened. Such testing includes seat leakage
and leak tests.
− The product warranty becomes void if
service or repair work not described in
these instructions is performed without
prior agreement by SAMSON's After-sales
Service.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
We recommend the following inspection and testing which can be performed while the pro-
cess is running:
Inspection and testing
Check the markings, labels and name-
plates on the valve for their readability
and completeness.
Check the pipe connections and gaskets
on the valve and actuator for leakage.
EB 8113/8114 EN
9.1 Periodic testing
Depending on the operating conditions,
check the valve at certain intervals to prevent
possible failure before it can occur. Plant op-
erators are responsible for drawing up an
inspection and test plan.
Tip
Our after-sales service can support you in
drawing up an inspection and test plan for
your plant.
Action to be taken in the event of a negative result:
Immediately renew damaged, missing or incorrect name-
plates or labels.
Clean any inscriptions that are covered with dirt and are il-
legible.
Check the bolted joint (tightening torque).
Replace the gasket on the flanged joint as described in sec-
tion 9.4.1.
Replace the packing (see section 9.4.2)
Servicing
9-3
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