Sealing And Pressure Resistance Performance Of Forged Steel Stop Valve
As an important pipeline control device, the sealing performance and pressure resistance of forged steel stop valves directly affect the normal operation and safety of the system. The following is an introduction to the sealing performance and pressure resistance of forged steel stop valves:
Forged Steel Globe Valve Sealing performance:
1. Sealing material: The sealing performance of forged steel stop valves depends on the quality and selection of sealing materials. Rubber, polytetrafluoroethylene (PTFE) and other materials are usually used as sealing rings to ensure that the valve can be effectively sealed when closed to prevent fluid leakage.
2. Sealing surface design: The sealing surface of forged steel stop valves usually adopts flat seal or conical seal design to ensure complete fit between the sealing surfaces and improve the sealing performance.
3. Sealing test: Before leaving the factory, forged steel stop valves are usually tested for sealing performance, including air tightness and water tightness tests, to ensure that the sealing performance of the valve meets the standard requirements.
4. Preload control: When installing the valve, it is necessary to control the preload of the bolts to ensure that the pressure between the sealing surfaces is moderate to avoid over-tightening or over-loosening resulting in reduced sealing performance.
Pressure resistance of forged steel stop valve:
1. Material selection: Forged steel stop valves are usually made of high-strength forged steel materials, which can withstand higher pressures and ensure the normal operation of the valve within the working pressure range.
2. Strength design: The structural design of the forged steel stop valve takes into account the internal and external pressures. Through reasonable structural design and strength calculation, it is ensured that the valve can withstand the pressure shock in the system.
3. Pressure test: Forged steel stop valves will be pressure tested before leaving the factory, usually including low pressure, medium pressure and high pressure tests to verify the pressure resistance of the valve.
4. Corrosion resistance treatment: For some special media application scenarios, it may be necessary to perform anti-corrosion treatment on the forged steel stop valve to improve the pressure resistance and service life of the valve.
In summary, the sealing performance and pressure resistance of the forged steel stop valve are important factors to ensure the normal operation of the valve and the safety of the system. Correctly selecting excellent sealing materials, reasonably designing the sealing structure, controlling the preload and strength calculation, and conducting pressure tests can effectively improve the sealing performance and pressure resistance of the forged steel stop valve and ensure the stability and safety of the system.