Preparing The Valve For Service Work; Installing The Regulator After Service Work - Samson 2479 Mounting And Operating Instructions

Servicing
Note
The regulator was checked by SAMSON
before it left the factory.
− Certain test results certified by SAMSON
lose their validity when the regulator is
opened. Such testing includes seat leakage
and leak tests.
− The product warranty becomes void if ser-
vice or repair work not described in these
instructions is performed without prior
agreement by SAMSON's After-sales Ser-
vice.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
Tip
SAMSON's After-sales Service can support
you in drawing up an inspection and test
plan for your plant.
9-2
9.1 Preparing the valve for
service work
1. Lay out the necessary material and tools
to have them ready for the service work.
2. Put the regulator out of operation (see
the 'Decommissioning' section).
Tip
We recommend removing the regulator from
the pipeline before performing any service
work (see the 'Removing the regulator from
the pipeline' section).
The following service work can be per-
formed after preparation is completed:
− Replace the seat and plug (see sec-
tion 9.3.1)
− Replace the actuator's operating dia-
phragm (see section 9.3.2)
− Replace the control thermostat (see sec-
tion 9.3.3).
9.2 Installing the regulator
after service work
Î Put the regulator back into operation (see
the 'Start-up' section). Make sure the re-
quirements and conditions for start-up or
putting the device back into operation
are met.
EB 3132-3 EN