Notes On Possible Property Damage - Samson 46-5 Mounting And Operating Instructions

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.
Î Flush the pipelines before start-up.
Î Observe the maximum permissible pressure for regulator and plant.
Risk of regulator damage due to unsuitable medium properties.
The regulator is designed for process media with defined properties.
Î Only use process media specified for sizing the valve.
Risk of regulator damage due to excessively high or low tightening torques.
Observe the specified torques on tightening regulator components. Excessively tight-
ened torques lead to parts wearing out quicker. Parts that are too loose may cause
leakage.
Î 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.
Î Prevent the formation of ice by taking appropriate precautions (e.g. enclosure,
trace heater, etc.). The plant operator is responsible for selecting and implementing
appropriate 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.
Î Use suitable inhibitors. The plant operator is responsible for selecting and using
suitable inhibitors.
10 EB 3130 EN