Measuring the micro-pressure of heated air: gauge selection
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The temperature is 220°C and the pressure is 5 kPa; a diaphragm gauge was chosen. Can the sensing element withstand such high temperatures? What precautions should be taken during installation?
Why choose a diaphragm box? Can’t just use a direct connection with a condensation bend? If you’re worried about inaccurate measurements, I can suggest models with micro-pressure sensing. If you have any questions regarding the selection or installation, feel free to message me privately
Add a condensation ring or condensation elbow during installation....
Adding a heat sink will do; a diaphragm pressure gauge is sufficient for 5KPa. A smaller range will do.
This post was last edited by ssln123 on 2016-7-5 09:04. It’s best to use pressure guiding tubes; don’t turn on the gauge at first, wait until the temperature of the pressure guiding tubes drops before turning it on. If it is a crystallizable medium, and a flanged type must be used, it is still necessary to run out a section of pipe.