The TTV 10W9020 Butterfly Valve stands out as an exceptionally economical and versatile choice within the TTV range of concentric designs. Crafted with a top-quality GJS500-7 disc and a rubber seat-liner, this valve ensures cost-effective resistance to a wide spectrum of mediums and temperatures. Its external cast iron body, not only withstands the rigors of external weathering but also ensures a prolonged operational lifespan, making it an economically sound investment. Furthermore, the valve is equipped with a lockable lever operator as a standard feature, enhancing its practicality and cost-efficiency for various applications.