Samson 41-73 Series, Mounting And Operating Instructions

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EB 2517 EN 7-1
Operation
7 Operation
Immediately after completing start-up or
placing the regulator back into service (see
the 'Start-up' section), the regulator is ready
for use.
Risk of burn injuries due to hot or cold
components and pipeline.
Regulator components and the pipeline may
become very hot or cold. Risk of burn inju
-
ries.
Î
Allow components and pipelines to cool
down or warm up to the ambient tem-
perature.
Î
Wear protective clothing and safety
gloves.
Risk of personal injury due to pressurized
components and process medium being
discharged.
Î
Do not loosen the control line while the
valve is pressurized.
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation or flashing)
may occur during operation caused by the
process medium and the operating condi-
tions.
Î
Wear hearing protection when working
near the valve.
WARNING !
WARNING !
WARNING !
Crush hazard arising from moving parts.
Î
Do not insert hands or fingers between
the set point springs while the regulator
is in operation.
Î
Do not insert hands or fingers between
the pillars and set point springs while the
regulator is in operation.
Î
Do not insert hands or fingers between
the spring plate and crossbeam while the
regulator is in operation.
Î
Before starting any work on the regula -
tor, depressurize plant sections as well as
the regulator.
7.1 Adjusting the set point
Î
The required upstream pressure is set by
turning the set point adjuster (6) using an
open-end wrench:
− DN 15 to 50 with width across flats
SW 19
− DN 65 and 100 with width across flats
SW 24
− The set point of the stainless steel regula-
tor must be adjusted using the rod in-
cluded.
Î
Turn the set point adjuster clockwise (

)
to increase the pressure set point.
Î
Turn the set point adjuster counterclock-
wise (

) to reduce the pressure set point.
The pressure gauge located on the upstream
pressure side allows the adjusted set point to
be monitored.
WARNING !