Samson 2439, Mounting And Operating Instructions

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EB 2185 EN 27
Operation
Risk of the valve being destroyed by steam
hammering.
−
Drain off any condensate in the pipeline.
−
Vent the plant.
Î
Fill the plant very slowly with the process
medium on start-up.
Once the safety temperature limiter is mount-
ed onto the valve, it can be put into opera-
tion.
5.5.1 Gases and liquids
Î
Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side.
Î
Avoid pressure surges.
5.5.2 Steam
Î
Completely drain and dry steam lines to
prevent water hammering.
Î
Slowly allow the steam to enter the plant
to ensure that the pipes and valves warm
up evenly and to avoid excessive flow
velocities.
Î
Before the full capacity is reached, drain
off the start-up condensate.
Î
Make sure that the air contained in the
plant escapes as quickly as possible.
Î
Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side.
Î
Avoid pressure surges.
NOTICE !
6 Operation
See Fig. 2.
6.1 Adjusting the limit
temperature
The safety temperature limiter is adjusted to
the limit value specified in the order.
If no value is specified, the following limit
value is ready adjusted:
− 10 to 95 °C range to 90 °C
−
20 to 120 °C range to 110 °C
When the safety temperature limiter is com -
bined with a Type 2430 Control Thermostat,
make sure that there is a minimum difference
of approximately 15 K between the limit
temperature of the temperature limiter and
the set point temperature of the control ther-
mostat.
Note