About oxygen pressure gauge

The main difference between an oxygen pressure gauge and a general pressure gauge is that the oxygen gauge is an oil-free gauge, which means that the final calibration of the assembled pressure gauge is to verify the instrument pressure through gas or water, while the ordinary pressure gauge is through oil to check, because oxygen can't spontaneously ignite but he can support combustion. Oxygen pressure above 2.49MPa will have a violent chemical reaction with grease, so oil should be banned absolutely.

Structure:

The structure of the oxygen pressure gauge and the general pressure gauge are basically the same

Effect:

The oxygen meter measures oxygen, and the proportion in the air is represented by numbers

General pressure gauges measure pressure, atmospheric pressure, pressure in the pipeline (oil and gas)

Difference: The oxygen meter has the O2 logo on it, while the pressure gauge has only numbers

Switching direction:

The switching direction of the oxygen pressure gauge and the general pressure gauge are different. The oxygen pressure gauge is clockwise, while the combustible gas pressure gauge is counterclockwise, mainly to prevent misuse.