24
EB 2183 EN
Mounting and start-up
5.5 Start-up
Fill the plant very slowly with the process me-
dium on start-up.
Risk of burn injuries due to hot or cold com-
ponents and pipelines.
Depending on the process medium, valve
components and pipelines may get very hot
or cold and cause burn injuries.
−
Allow components and pipelines to cool
down or warm up to the ambient tempera-
ture.
−
Wear protective clothing and safety gloves.
Malfunction and damage due to adverse
weather conditions (temperature, humidity).
Do not install the safety temperature monitor
outdoors or in rooms prone to frost. If such a
location cannot be avoided, protect the reg-
ulator against freezing up if the process me-
dium flowing through the valve can freeze
up. Either heat the regulator or remove it
from the plant and completely drain the re-
sidual medium.
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.
WARNING
!
NOTICE
!
NOTICE
!
Once the safety temperature monitor is
mounted onto the valve, it can be put into
operation.
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 Vapors
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.