Uni- Directional Knife Gate Valves are available in different sizes ranging from 50mm to 600mm. These Knife Gate Valves are made using quality grade steel or stainless steel to ensure optimum performance for longer period of time. These Knife Gate Valves are available in wafer, full lug and uni-directional type designs. Uni- Directional Knife Gate Valves are mainly designed for medium and heavy duty applications.