Reasons for the activation of the safety valve in a synthetic temperature-reducing pressure regulator
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What is the reason why the safety valve of the synthetic temperature-reducing pressure regulator operates in winter when there is no overpressure in the steam? The safety valve is activated by a weight-driven pressure mechanism.
It is likely that the actual steam pressure before the temperature and pressure reducer is too high, while the readings on the local gauge or remote gauge are low; otherwise, if there is no overpressure, the safety valve will not activate.
The safety valve of the temperature and pressure reducer should be checked using a gauge to see if there is any change in its setting pressure.