In the heart of Sansheng Fluorine Plastics' advanced fluid control technology lies our premier product, the Keystone Resilient Butterfly Valve Seat, a testament to our commitment to innovation and excellence in the field of valve manufacturing. Designed to seamlessly integrate with a variety of systems, this valve seat represents a pinnacle in material engineering, combining the robustness of EPDM with the unparalleled chemical resistance of PTFE.



Our Keystone Resilient Butterfly Valve Seat, available in sizes ranging from DN50 to DN600, is tailored to ensure a precise fit and optimal functionality across a broad spectrum of applications. This valve seat is manufactured to withstand pressures of PN6 to PN16 (Class 150), making it versatile for use in water, oil, gas, as well as base and acidic media environments. Its color, white and black, symbolizes the blend of EPDM and PTFE, materials chosen for their durability and resistance to wear under the most demanding conditions. Sansheng Fluorine Plastics is proud to present a valve seat that not only meets but exceeds industry standards (ANSI, BS, DIN, JIS). The connection types available, Wafer and Flange Ends, allow for ease of installation and maintenance. Furthermore, the seat options, which include EPDM, NBR, EPR, PTFE, and more, offer unmatched flexibility and compatibility with various media types. This innovation is not just in the materials used but also in the design - with Wafer Type Centerline and Lug Type Double Half Shaft Butterfly Valve configurations, this product stands as a versatile solution for systems requiring precise flow control. The keystone resilient butterfly valve seat is engineered to ensure reliability, longevity, and performance, making it an ideal choice for industries seeking efficient and secure fluid control solutions.