First of all, the pressure gauge needs to be checked regularly (usually half a year or a year), and check whether its internal elastic components are sensitive
In many cases, the pressure gauge needs to work in the high pressure range for a long time, and the pressure gauge with high quality has no problem working under the pressure for a long time. 25Mpa is a commonly used range and is widely used.
The life calculation method of the pressure gauge is different from that of most commodities, and it is not based on a few years. Its life calculation is related to its structure. The core component of the pressure gauge is the Bourdon tube inside the pressure gauge. When pressure comes in, the Bourdon tube deforms, which drives the pointer to change and displays the pressure reading. The life of the wave tube is calculated by its deformation times. When the Bourdon tube reaches the number of times of use, it will not be restored after deformation, resulting in the pointer not returning to zero, or the Bourdon tube breaking, etc. At this time, the life of the pressure gauge is over.
Of course, if the pressure gauge and Bourdon tube work in a high pressure range for a long time, the number of deformations will also be reduced, but the effect is not obvious, so don't worry too much.
The most damaged pressure gauge is instantaneous overpressure. For example, a 25Mpa pressure gauge often reaches more than 30Mpa when the unit is started. The pressure gauge is very easy to be damaged, and it often occurs once or several times.
So there is no clear lifespan yet.
