Samson 2357-31, Mounting And Operating Instructions, Page: 8 / 12

3.3 Decommissioning
We recommend to close the shut-off valve up-
stream of the regulator, then the one down-
stream of the regulator.
4 Maintenance
The regulator is maintenance free. Neverthe-
less, it is subject to natural wear, particularly
at the seat, plug and operating diaphragm.
Depending on the operating conditions, the
regulator needs to be checked at regular in-
tervals to detect and avoid possible malfunc-
tions.
CAUTION!
Make sure the relevant plant section has been
depressurized and, depending on the pro-
cess medium, drained as well before remov-
ing the regulator from the pipeline.
Check the filters installed in ports A and B (if
applicable) and clean them if necessary.
If you do not succeed in removing faults or
malfunctions yourself, contact SAMSON for
support (see section 5).
8
EB 2558 EN
Maintenance
Table 1 · Set point adjustment (default settings)
Set point range 1 to 8 bar 5 to 25 bar 8 to 40 bar
Set point adjusted to approx. 3 bar 12 bar 25 bar
Set point change
per turn of the adjuster
1 bar 2.5 bar 3.5 bar