People who often use instruments and meters know that the maintenance and inspection of the instrument is very important if the life of the instrument is prolonged. In order to keep the pressure gauge sensitive and correct, in addition to fair selection and correct installation, the operation process of the boiler and pressure vessel China should also strengthen the maintenance and inspection of the pressure gauge. The maintenance staff should do the following to maintain the pressure gauge:
(1) The pressure gauge should be kept clean, the glass on the dial should be bright and clear, so that the pressure value indicated by the pointer in the dial can be clearly seen, and the pressure gauge with broken dial glass or blurred dial scale should be stopped.
(2) The connecting pipe of the pressure gauge should be flushed regularly to avoid blockage. In particular, the connecting pipe of the pressure gauge used for the gas with more grease or other viscous substances should be flushed frequently.
(3) Always check whether the rotation and fluctuation of the pressure gauge pointer are normal, and check whether the cock on the connecting pipe is in the fully open position.
(4) The pressure gauge must be checked regularly, at least once every year by a qualified unit of measurement. After verification, the verification record and verification certificate should be filled in carefully and lead seal should be added. Pressure gauges that have exceeded the calibration period should be discontinued. During the normal operation of the boiler and pressure vessel, if the pressure gauge indicates abnormality or other suspicious signs, it should be checked and corrected immediately.