Operation; Set Point Adjustment - Samson 42-10 Mounting And Operating Instructions

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.
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 warm up to the ambient tem-
perature.
Î Wear protective clothing and safety
gloves.
WARNING
!
Risk of personal injury due to pressurized
components and process medium being dis-
charged.
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 3009 EN

7.1 Set point adjustment

The regulator is delivered with a ready
adjusted set point of 0.2 bar/3 psi (DN 15
to 150/NPS ½ to 6) or 0.3 bar/5 psi
(DN 200 and 250/NPS 8 and 10) and has
been tested.
The regulator is open, provided the upstream
pressure is greater than the downstream
pressure by at least the ready adjusted set
point. It closes automatically when the down-
stream pressure rises to or above the value
of the upstream pressure.
The user cannot adjust the set point.
Operation
7-1