Safety valves generally leak

Safety valve is a very important protective valve widely used in various pressure vessels and industrial pipeline systems. When the pressure in the pressurized system exceeds the specified value, it can automatically open and discharge the excess medium into the atmosphere to ensure the safe operation of the pressure vessel and pipeline system and prevent accidents. When the pressure in the system drops back to the working pressure or slightly below the working pressure, it can automatically close. The reliability of safety valve operation is directly related to the personal safety of pipeline equipment and surrounding people, so it must be taken seriously.The main safety valve product names of China Safety Valve Network include:Spring Low Lift Closed High Pressure Safety Valve,Spring Fall Lift Closed High Pressure Safety Valve,Spring Fall Lift Safety Valve,Spring Fall Lift Safety Valve, With RadiatorSpring Low Lift Air Compressor Safety Valve,(With Connecting Pipe)Safety Reflux ValveSingle Lever Safety Valve,

Under normal operating pressure of the equipment, leakage beyond the allowable level occurs at the sealing surface between the valve disc and the valve seat, and the leakage of the safety valve will not only cause medium loss. In addition, continuous leakage of the medium can also damage the sealing material, especially when there are impurities in the medium. However, the sealing surface of commonly used safety valves is generally made of metal to metal materials. Although it strives to be smooth and flat, it also requires certain production processes and technical guarantees to achieve absolute leak resistance under medium pressure. For safety valves with steam as the working medium, if there is no visible or audible leakage at the outlet end under the specified pressure value, it is considered that the sealing performance should be qualified.

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