The sealing performance of the stainless steel lug butterfly valve is one of the key factors to ensure the safe and stable operation of the pipeline system. Its sealing performance is mainly guaranteed by the following aspects
1. High quality sealing material
Sealing surface materials: The sealing surface materials of butterfly valves are usually high temperature resistant, corrosion resistant, and wear resistant materials, such as polytetrafluoroethylene (PTFE), metal seals, etc. These materials maintain stable sealing performance under various operating conditions and reduce the risk of leakage.
Seals: Seals such as seals, gaskets, etc. are also made of high-quality materials to ensure a tight fit between the valve seat and the valve body to prevent media leakage.
2. Reasonable sealing structure design
Multi-layer sealing structure: Some butterfly valves use multi-layer soft and hard stacked sealing ring design, which can significantly improve the reliability and service life of the seal.
Sealing surface shape: The shape and Angle design of the sealing surface is also crucial, and a reasonable shape and Angle can ensure that the disc is closely fitted with the seat when it is closed, forming an effective seal.
3. Precise machining and assembly
Processing accuracy: The processing accuracy of valve body, valve plate, valve seat and other components has a direct impact on the sealing performance. High-precision machining ensures uniform clearance between components and reduces the possibility of leakage.
Assembly accuracy: In the assembly process, it is necessary to assemble in strict accordance with the process requirements to ensure that the relative position between the components is accurate and the contact between the sealing surface is good.
4. Strict quality control
Material inspection: Strict inspection of the used sealing materials and components to ensure that they meet the relevant standards and requirements.
Sealing performance testing: After the production of the valve is completed, it is necessary to conduct sealing performance testing, such as static pressure test, dynamic pressure test, etc., to ensure that the sealing performance of the valve meets the design requirements.
5. Maintenance
Regular inspection: Check the butterfly valve regularly to detect and deal with potential leakage problems in a timely manner.
Replace the seal: When the seal is worn or aged, it needs to be replaced in time to maintain the good sealing performance of the valve.