Pressure gauge with a rubber plug, cut turn around before use

The working principle of pressure gauge is a sensitive element (by table Bourdon tubes, bellows, bellows) Elastic deformation, the pressure deformation by the transformation of movement in table to Pointers, cause the hands to display the pressure. To explain to you, under the pressure gauge with a rubber plug, use cut turn around is what? Instrument to solve for you: at the top of the pressure gauge pressure gauge is rubber filling oil plug, also called safety plug, leak protection, such as high pressure inside the plug will pop up, it does not easily blown glass. In the pressure gauge is installed, before using rubber plug should be cut a small hole or turn around, make it to the atmosphere or affect the accuracy of measurement. This oil filled pressure gauge is called oil filled pressure gauge, also known as seismic pressure gauge, it is suitable for use in places that have requirements of vibration. Silicone oil is low temperature resistant effect, glycerin is seismic effect, can make the table more accurate measurement, prolong service life. Generally when use high pressure oil filled pressure gauge is no problem, you'd better cut it off and low pressure or poke a hole.