What kind of oil filled pressure gauge is filled with oil?

Working principle of the 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. Oil filled pressure gauge, the main purpose is to reduce the pointer in relatively large variations in pressure buffer to zero, so that we can effectively ensure the sensitivity of pressure gauge. General pressure table filling oil is glycerin and silicone oil. Both fill oil aseismatic function is the same, the difference is that the degree of low temperature resistant, silicone oil than glycerol good low temperature resistance, when using the environment temperature reaches - 20 ℃, glycerin is crystallized, and silicone oil or maintain normal working condition. The advantage of oil filled pressure gauge is the scene shows pressure value, intuitive, convenient and safe and reliable, long service life, fast reading. Should pay attention to clean up and check when using, regularly test the measured values.