Preparing The Valve For Service Work; Installing The Regulator After Service Work; Service Work - Samson 43-3 Mounting And Operating Instructions

Servicing
NOTICE
!
Risk of regulator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(see 'Tools' in Annex).
NOTICE
!
Risk of regulator damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (see 'Lubricants' in Annex).
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
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.
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:
− Clean the seat and plug (see section 9.4)
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 valve back into operation are
met.
9.3 Service work
Î Before performing any service work,
preparations must be made to the regu-
lator (see section 9.1).
Î After all service work is completed, check
the regulator before putting it back into
operation (see 'Testing the regulator' in
the 'Installation' section).
EB 2173 EN