Introducing the Keystone Butterfly Valve 990, a pinnacle of innovation and engineering by Sansheng Fluorine Plastics, designed to meet the rigorous demands of modern sanitary systems. This valve exemplifies the perfect blend of durability and performance, meticulously crafted to ensure optimal functionality in various applications. With a keen focus on quality and precision, we are proud to offer a solution that stands out in the fluid control industry.



At the heart of the Keystone Butterfly Valve 990 lies its exceptional construction - a robust compound of PTFE and EPDM. This combination not only offers unmatched chemical resistance but also ensures the valve's operability across a wide temperature range, from -40℃ to 135℃. Such versatility makes it an ideal choice for managing water flow in systems where hygiene and temperature stability are paramount. Whether for pharmaceutical, food and beverage, or water treatment industries, this valve ensures a leak-free, hygienic operation, proving time and time again its worth in maintaining system integrity and efficiency. The Keystone Butterfly Valve 990 stands as a testament to Sansheng Fluorine Plastics' commitment to superior product quality. Designed to be both versatile and reliable, it features a wafer or flange connection for ease of installation in DN50-DN600 port sizes, making it adaptable to a wide range of pipeline configurations. The valve's seat options - including EPDM, NBR, EPR, and PTFE - provide comprehensive compatibility with various media, ensuring a secure seal and efficient flow control. Whether your application requires a pneumatic wafer butterfly valve or a lug type double half shaft butterfly valve without a pin, the Keystone Butterfly Valve 990 offers a tailored solution for your specific needs.