Sansheng Fluorine Plastics is proud to introduce our premier line of sealing solutions: the Keystone PTFE Butterfly Valve Sealing Ring. Developed with precision engineering and quality materials, our sealing rings set the standard in the industry for reliability and performance. This product is designed to meet the complex needs of modern industries, where efficient and reliable sealing mechanisms in butterfly valves are non-negotiable for maintaining operational integrity and efficiency. At the heart of our product is the innovative combination of PTFE (Polytetrafluoroethylene) and EPDM (Ethylene Propylene Diene Monomer) materials, which together form a sealing ring that is not only resilient under challenging conditions but also compatible with a wide range of media. Whether it's water, oil, gas, base, or acidic substances, our sealing ring stands up to the task, ensuring a tight seal and preventing leaks. The white and black colors of the PTFE+EPDM materials represent our commitment to both quality and aesthetic flexibility, offering our customers a product that is as visually appealing as it is functional.



Our PTFE Coated EPDM Valve Seats are designed for wafer type centerline soft sealing butterfly valves and pneumatic wafer butterfly valves, showcasing unmatched versatility across applications. With pressure ratings including PN16, Class 150, PN6-PN10-PN16 (Class 150), and port sizes ranging from DN50 to DN600, our sealing rings accommodate a broad spectrum of requirements. Furthermore, the option for customization in color, connection types (wafer or flange ends), and standards (ANSI, BS, DIN, JIS) ensures that our keystone PTFE butterfly valve sealing ring can be tailored to meet the specific needs of your application. Valve types supported include butterfly valve and lug type double half shaft butterfly valve without pin, underlining our commitment to providing solutions that are not just effective but also inclusive of various system requirements. In conclusion, the sophisticated design and material selection of Sansheng Fluorine Plastics' Keystone PTFE Butterfly Valve Sealing Ring represent our dedication to innovation, quality, and customer satisfaction. It's a product built not just to meet but exceed the dynamic and demanding needs of industries reliant on superior valve sealing solutions.