In the realm of industrial valve solutions, the Keystone PTFE+EPDM Butterfly Valve Liner stands as a paragon of innovation and reliability. Designed by Sansheng Fluorine Plastics, this liner is engineered to deliver unparalleled performance and durability across a myriad of demanding applications. The fusion of PTFE and EPDM materials creates a resilient sealing ring that not only exceeds in functionality but also in longevity, making it an essential choice for businesses seeking efficiency and robustness in their operations.



The Keystone PTFE+EPDM Butterfly Valve Liner is designed to withstand a broad range of pressures, including PN16, Class150, and PN6-PN10-PN16 (Class 150), ensuring versatility across various industrial settings. Its adaptability to different mediums—ranging from water, oil, gas, base oil, to acids—further underscores its suitability for diverse operational environments. This product boasts a port size range from DN50 to DN600, catering to an extensive spectrum of pipeline diameters and facilitating seamless integration into existing systems. One of the standout features of this valve liner is its customizable color and hardness, providing customers with the flexibility to tailor the product according to their specific requirements. The connection types available—wafer and flange ends—offer ease of installation and compatibility with numerous valve types, including butterfly valves and lug type double half shaft butterfly valves without pin. From its application in valve and gas systems to its high-light characteristics such as the seat butterfly valve, PTFE seat ball valve, and PTFE coated EPDM valve seat, the Keystone PTFE+EPDM Butterfly Valve Liner exemplifies excellence in design and functionality. Whether it’s ensuring the smooth operation of water treatment facilities, optimizing oil and gas production, or enhancing the reliability of chemical processing plants, this valve liner is crafted to elevate your operational efficiency to new heights.