Samson 3291, Перевод оригинальной инструкции

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EB 8072 EN 9-3
Servicing
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.
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.
Our after-sales service can support you in
drawing up an inspection and test plan for
your plant.
Note
Tip
We recommend the following inspection and testing which can be performed while the pro -
cess is running:
Inspection and testing Action to be taken in the event of a negative result:
Check the markings, labels and
nameplates on the valve for their
readability and completeness.
Immediately renew damaged, missing or incorrect
nameplates or labels.
Clean any inscriptions that are covered with dirt and are
illegible.
Check the pipe connections and gaskets
on the valve and actuator for leakage.
Check the bolted joint (tightening torque).
Replace the gasket on the flanged joint as described in
section 9.4.2.
Version with adjustable packing
1)
: adjust the packing (see
information under 'Adjusting the packing' in the
'Installation' section > 'Testing the installed valve') or
replace the packing (see section 9.4.3).