Samson 44-0 B, Mounting And Operating Instructions

Page: 35 / 66

EB 2626-1 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 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 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 !
7.1 Adjusting the set point
Adjust the required set point by turning the
set point adjuster (8) by hand or the set point
screw (9) using an Allen key
1)
(3 or 5 mm
width across flats.
Set point adjuster
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.
Set point screw
Î
Undo the lock nut.
Î
Turn the set point screw clockwise (

) to
increase the pressure set point.
Î
Turn the set point screw counterclockwise
(

) to reduce the pressure set point.
Î
Tighten the lock nut.
The pressure gauge installed on the down-
stream side on site allows the adjusted set
point to be monitored.
The set point range can be changed by
exchanging the set point spring (see
'Replacing the set point spring' in the
'Servicing' section).
1)
Versions with bodies made of spheroidal graphite
iron (DN 40 and 50), stainless steel bodies and all
regulators with 8 to 20 bar set point range.
Note