The pressure tap is prone to freezing
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In winter, the pressure guiding pipelines of instruments tend to freeze due to moisture in the fluid – what do people do in such situations?
Steam blowing, thermal insulation and heating, addition of antifreeze; modifications (where pressure guiding pipes can be avoided, replace them gradually). Before winter arrives, discharge pollutants and fluids in accordance with the records, and check the insulation and heating systems.
To prevent the instrument pressure conduits from freezing in winter, the following measures can be taken: heating and insulation, using desiccants to reduce moisture, regular inspection and maintenance, and switching to water-free media. .
In such cases, heat tracing and insulation must be taken into consideration during design; heat tracing is necessary for instruments to function properly in winter. Additionally, when selecting instruments, it is advisable to choose those that are not of the differential pressure type, in order to reduce the workload associated with this aspect. For example, if vortex flow meters can be used to measure water flow, then orifice plates need not be used: lol