Regarding the annual inspection of pressure gauges?
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At present, petrochemical companies carry out many routine tasks every year, such as the inspection of safety valves and the annual calibration of pressure gauges. These tasks are both time-consuming and resource-intensive; I wonder what good practices other companies have and what the basis for them is
Safety accessories shall comply with the Provisions on the Safety Supervision of Special Equipment, the Technical Supervision Regulations for Steam Boilers, the Technical Supervision Regulations for Hot Water Boilers, the Provisions on the Safety Management and Supervision of Pressure Pipelines, the Technical Supervision Regulations for Pressure Vessels, as well as relevant laws, regulations and standards. Safety valves, pressure gauges, and temperature measuring instruments should generally be calibrated at least once a year.
Gauge pressure meters subject to mandatory calibration must be calibrated every six months in accordance with the calibration procedures.
Here, pressure gauges are classified into three levels of management based on their importance: those in level 1 are calibrated once a year, those in level 2 are calibrated during maintenance, and those in level 3 are only calibrated once initially.
Requirements vary from place to place, but it cannot exceed 1 year at most.
In accordance with relevant regulations, inspections are carried out in batches
Do you have any evidence? Won’t the higher authorities issue requirements for rectification during inspections?
It depends on the size of your company. If it’s large enough, and you have enough pressure gauges and safety valves, you can apply for the necessary qualifications and conduct the inspections yourself; it’s just that you cannot do this for external clients. As long as you have the required qualifications, all relevant departments will accept the reports issued by your company. For pressure gauge inspections, a CMA certification is needed – consult your local metrology and testing institute. For safety valve inspections, approval for handling special equipment is required; contact the Special Equipment Safety Supervision Department within your local quality and technology supervision bureau. Note: If the inspections are for internal use only and not for external clients, it’s less complicated
The JJG 52-2013 Calibration Regulations for Elastic-element General Pressure Gauges, Pressure-Vacuum Gauges, and Vacuum Gauges stipulate that the period should not exceed six months.
I recall this regulation coming from the \"Code for the Use of Pressure Pipelines\"”