Samson 2405 Series, Mounting And Operating Instruction

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EB 2520 EN 25
Mounting and start-up
6 Servicing
The regulators do not require much mainte-
nance. Nevertheless, they are subject to nat-
ural wear, particularly at the seat, plug and
operating diaphragm.
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equip -
ment. Improper opening can lead to valve
components bursting.
− Before starting any work on the valve, de -
pressurize all plant sections affected as
well as the valve.
− Drain the process medium from all the
plant sections affected as well as the valve.
− Wear personal protective equipment.
Risk of personal injury due to residual pro-
cess medium in the valve.
While working on the valve, residual me -
dium can flow out of the valve and, depend -
ing on its properties, cause personal injury,
e.g. (chemical) burns.
−
If possible, drain the process medium from
all the plant sections affected and the
valve.
− Wear protective clothing, safety gloves and
eye protection.
DANGER !
WARNING !
Incorrect control due to a set point adjuster
being turned too far.
If the set point adjuster is turned too far, the
regulator becomes blocked and closed-loop
control is no longer possible.
Only screw the set point adjuster up to the
point where the spring tension can still be
felt.
The pressure gauge (Fig. 7) installed on the
downstream side on site allows the adjusted
set point to be monitored.
NOTICE !