Periodic Testing - Samson 3281 Mounting And Operating Instructions

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 8251 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.
Version with adjustable packing
information under 'Adjusting the packing' in the 'Testing the
installed valve' section) or replace the packing (see sec-
tion 9.4.2).
Servicing
: adjust the packing (see
1)
9-3