In the world of industrial applications, where the integrity of valve sealing can dictate the efficiency and safety of entire systems, Sansheng Fluorine Plastics introduces the ultimate solution – our Sanitary EPDM PTFE Compounded Butterfly Valve Sealing Ring. This innovative sealing solution is designed to meet the rigorous demands of diverse industries, offering unparalleled durability and compatibility. Engineered with a keen focus on the keystone valve seat, a component critical for ensuring the seamless operation of butterfly valves, this product stands as a testament to our dedication to excellence and innovation.



Combining the robustness of EPDM with the chemical resistance of PTFE, our sealing ring caters to a broad spectrum of applications, from water and oil to gas and corrosive media. The unique fusion material - white PTFE and black EPDM - is precisely compounded to offer the dual benefits of flexibility and strength, ensuring a reliable seal under varying pressure conditions (PN6-PN10-PN16, Class 150). This versatility makes it an ideal keystone valve seat for industries ranging from petrochemicals to food and beverage, where adherence to stringent standards is paramount. Our product range is comprehensive, covering port sizes from DN50 to DN600, which makes it suitable for a wide array of valve types, including pneumatic wafer butterfly valves and lug type double half shaft butterfly valves without pin. Designed to fit seamlessly with wafer and flange end connections, these hybrid EPDM PTFE valve seats comply with multiple international standards, including ANSI, BS, DIN, and JIS, thereby ensuring global applicability. Whether you are in need of a valve seat for water, oil, gas, base oil, or acidic media, our keystone valve seat stands ready to deliver exceptional performance and reliability.