Safety valves belong to the category of automatic valves, and their opening and closing components are in a normally closed state under normal operating conditions due to external forces (such as spring elasticity, heavy hammer gravity, etc.), tightly blocking medium leakage. When the pressure of the medium inside the equipment or pipeline rises and exceeds the preset specified value, the opening and closing parts automatically open under the action of the medium pressure, and release the pressure by quickly discharging the medium outside the system until the system pressure drops to a safe range; Subsequently, the opening and closing components automatically reset and close under external force, restoring normal system operation. This closed-loop action of "automatic overpressure relief and normal pressure return" does not require manual intervention and can ensure that the pressure system does not operate under overpressure 24/7, avoiding major safety accidents such as equipment explosions and medium leaks from the source.
Standardized selection and management to ensure safety and efficiency
The safety efficiency of safety valves relies on scientific selection and full life cycle management. The core points include: the maximum pressure specification of this series of products is 8 bar, and the selection should be accurately matched based on the characteristics of the medium, operating temperature, and actual working pressure (not exceeding 8 bar). For corrosive low-pressure media, corrugated pipe or fully lined type is preferred, and for low-pressure scenarios that require pressure relief stability, pilot type (low-pressure type) is preferred; When purchasing, it is necessary to verify the supplier's special equipment manufacturing license, product qualification certificate, type test report and other documents; Regular calibration is required after installation, and the calibration cycle of the safety valve for low-pressure pressure vessels should not be less than once a year to ensure that the operating performance continues to meet the standard within the rated pressure range of 8 bar.
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