I have a question regarding the pressure gauge pressure guide tube; I’d like to ask everyone for advice
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I would like to ask: do not all pressure measuring instruments require pressure tubes? Should it be remote or local? Don’t membrane or diaphragm pressure gauges require pressure transfer tubes? ?
Take a look at HG/T 21581-2012, the \"Automation Installation Manual\", which contains various installation schemes.
Even without a pressure guide tube, there has to be an installation port.
Diaphragm pressure gauges do not require pressure transfer tubes, and it makes no difference whether they are used for remote or local measurement.
Diaphragm pressure gauges do not require pressure transfer tubes, and it makes no difference whether they are used for remote or local measurement.
Some pressure instruments do not require pressure transfer tubes; the choice depends on factors such as the medium being measured, the pressure level, and the installation location.
The sixth floor is the correct answer; it mainly depends on factors such as the measuring medium and the installation environment
Most local pressure gauges have a pressure lead of 0.3 to 0.5 meters. This is the standard installation procedure. It’s fine if such a pressure guide tube is not needed. Attention should be paid to the design temperature at this location; if it is at room temperature, there is no problem and it may not be necessary to use a pressure tap. If the temperature exceeds the temperature tolerance range of the pressure gauge, it won’t work. Since the pressure tapping tube can lower the temperature of the medium, the higher the temperature, the longer the pressure tapping tube needs to be; if necessary, a condensation coil or isolation sleeve must also be installed.