Operation; Adjusting The Set Point - Samson 41-23 Mounting And Operating Instructions

7 Operation

Immediately after completing start-up or
placing the regulator back into operation
(see the 'Start-up' section), the regulator is
ready for use.
WARNING
!
Risk of burn injuries due to hot or cold com-
ponents 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 heat up.
Î Wear protective clothing and safety
gloves.
WARNING
!
Risk of personal injury due to pressurized
components and process medium escaping
under pressure.
Î Do not loosen the control line while the
valve is pressurized.
WARNING
!
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.
EB 2512 EN EB 2512
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 downstream 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 down-
stream pressure side allows the adjusted set
point to be monitored.
Operation
7-1 7-1