EB 3131 EN
11
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of regulator damage due to contamination (e.g. solid particles) in the pipeline.
The plant operator is responsible for cleaning the pipelines in the plant.
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Flush the pipelines before start-up.
Risk of regulator damage due to unsuitable medium properties.
The regulator is designed for process media with defined properties.
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Only use process media specified for sizing the valve.
Risk of leakage and regulator damage due to excessively high or low tightening
torques.
Observe the specified torques when tightening regulator components. Excessive tighten
-
ing torques lead to parts wearing out more quickly. Parts that are too loose may cause
leakage.
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Observe the tightening torques specified in section 7.3.
Incorrect control due to the formation of ice on the regulator.
Medium temperatures below 0 °C may cause ice to form on the regulator, depending
on the air humidity. This may affect, in particular, the functioning of the actuator stem
guide or set point adjuster.
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Prevent the formation of ice by taking appropriate precautions (e.g. enclosure, trace
heater etc.). The plant operator is responsible for selecting and implementing appro-
priate precautions.
Regulator damage due to condensed glycol.
In principle, the materials are also resistant to high concentrations of glycol. Neverthe-
less, glycol reacts when it comes into contact with metals and causes acids to form. We
cannot prevent this reaction.
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Use suitable inhibitors. The plant operator is responsible for selecting and using suit-
able inhibitors.
