The pressure gauge is labeled as a high-temperature resistant one, but its temperature range is indicated as -20/+80°C. Can it be used at 200°C?
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The pressure gauge is labeled as a high-temperature resistant one, but its temperature range is indicated as -20/+80°C. Can it be used at 200°C?
It can be used, but an isolation fluid needs to be added.
Be careful with this: if it is a diaphragm vacuum gauge, it is recommended not to use it, as the display accuracy will be quite poor； The positive pressure condition has a relatively minor impact. Thank you!
It is recommended to indicate the scope of use, leaving some margin for actual use.
A condensation tank (I’m not sure if this is the correct term) or a cooling element should be installed between the detection point and the pressure gauge； In other words, by ensuring a certain distance between them and by preventing the detection medium from flowing, the temperature of the pressure gauge remains within the allowable range
-20--+80℃ is the operating ambient temperature； A properly installed pressure gauge does not come into contact with the high temperature of the medium; so-called high-temperature pressure gauges simply lack plastic components inside them.