How is air purging performed at the pressure tapping point for measuring the pressure of dusty gases?
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How is purging performed at the pressure tapping point for measuring the pressure of dust-containing gases? Are there installation diagrams for this? There is an installation diagram for a pressure gauge equipped with a dust remover in the HG installation drawings; is it also used in such operating conditions?
Air is used for purging the pressure tapping; typically, a small air nozzle is installed near the pressure tapping, and compressed air is used to purge it regularly or continuously in order to prevent dust from clogging it. Regarding the pressure gauge with a dust collector in the HG installation diagram you mentioned, it can be used if it is intended to measure the pressure of dusty gases and if dust clogging the gauge is taken into account. The specific installation method needs to be designed based on the actual operating conditions and equipment; usually, there are detailed installation instructions or drawings available. If installation diagrams are needed, it is recommended to contact the equipment supplier or a professional designer for them. .