Technical Support

Shockproof pressure gauge (also known as oil-filled pressure gauge) is mainly used in the working environment with vibration, in our actual use of the process, can be found that the shockproof pressure gauge has oil leakage phenomenon. Today, we'll talk about why shock pressure gauges leak oil.

As a producer, you don't want to spill oil, but sometimes customers say it happens. In order to master this problem, the manufacturer also did a lot of tests, and finally summed up why the shock pressure gauge will leak three reasons.

1. The seal of the base between the threaded hexagon and the bottom shell is not good, and there may be virtual welding, or the gasket is not sealed.

2. The gasket between the upper cover ring and the bottom shell is not put right, and the gasket is skewed when the upper cover is tightened, so it can not seal.

3, charging plug installation is not smooth or not installed in place.

After knowing the reason, the manufacturer should also update and improve the relevant process flow in order to provide better quality products.

Proper use of shockproof pressure gauges

1. The ambient temperature of the pressure gauge is -40~70℃, the relative humidity is below 80%, and the temperature additional error should be applied when the temperature exceeds the normal use temperature of 20±5℃.

2. The inner town manometer must be set vertically and strive to maintain the same level as the measuring point. For example, the difference is too high to take into account the additional error caused by the liquid column when measuring the gas. When installing, please block the explosion-proof mouth on the back of the shell, so as not to affect the explosion-proof performance.

3, the normal use of the measurement range: static pressure shall not exceed 3/4 of the upper limit of the determination, change shall not exceed 2/3 of the upper limit of the determination. Under the above two pressure conditions, the large manometer measurement should not be lower than 1/3 of the lower limit. When measuring vacuum, the vacuum part should be used.

4, when using, if the vibration pressure gauge pointer failure, internal parts loose or can not work properly and other faults, should be maintained or contact the production enterprise for maintenance.

5, shockproof pressure gauge to avoid vibration and collision, to avoid damage.

6, when ordering, please specify: seismic pressure gauge model and name; Range of measurement; Deviation of precision grade from positive packaging requirements and others.

7, according to user requirements for special design.

8. In use, because the surrounding temperature is too high, the value will not return to 0. Drill a small hole on the rubber plug of the instrument with a fine needle, so that the instrument cavity can be communicated with the atmosphere. Corrosive gases are not allowed in the working environment.

Conclusion, the above content is today Xiaobian collation on the related knowledge of seismic pressure gauge, seismic pressure gauge as an important accessory for safe production, plays an important role in the production engineering of enterprises. Similarly, as the metrology personnel responsible for the vibration pressure gauge verification, in accordance with the verification procedures to do a good job in the verification work, carefully study the problems found in the verification process, and strive to solve, comprehensively improve their work level, for the safe production and operation of the enterprise construction escort.