Emergency Action - Samson 43-3 Mounting And Operating Instructions

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The malfunctions listed in section 8.1 are
caused by mechanical faults and incorrect
regulator sizing. In the simplest case, the
functioning can be restored following the
recommended action. Special tools may be
required to rectify the fault.
Exceptional operating and installation condi-
tions may lead to changed situations that
may affect the control response and lead to
malfunctions. For troubleshooting, the condi-
tions, such as installation, process medium,
temperature and pressure conditions, must
be taken into account.
Tip
SAMSON's After-sales Service can support
you in drawing up an inspection and test
plan for your plant.
EB 2173 EN

8.2 Emergency action

Plant operators are responsible for emergen-
cy action to be taken in the plant.
We recommend removing the regulator from
the pipeline before repairing it.
In the event of a regulator malfunction:
1. Close the shut-off valves in the flow and
return flow pipes to stop the process me-
dium from flowing through the regulator.
2. Perform troubleshooting (see sec-
tion 8.1).
3. Rectify those malfunctions that can be
remedied based on the instructions pro-
vided here. Contact SAMSON's Af-
ter-sales Service in all other cases.
Putting the device back into operation after
a malfunction
See the 'Start-up' section.
Malfunctions
8-5

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