🔒 Seal the Deal with Confidence! PTFE bushing ensures smooth and reliable valve movement. Buna-N seals provide exceptional sealing capabilities. Crafted from high-quality ductile iron for long-lasting performance. Ideal for various industrial applications with a 4" size and 200 psi pressure rating. Top and bottom stems made from stainless steel for enhanced resilience. Buna-N Seal Ductile Iron 200 psi Pressure The Dixon BFVW400 is a robust 4" wafer style butterfly valve designed for high-pressure applications, featuring a durable ductile iron body, reliable Buna-N seals, and stainless steel stems, ensuring optimal performance and longevity.