The knife gate valve relies on the perpendicular movement of the knife gate and the fluid direction to cut off the medium, so as to control the flow of the pipeline. Due to the small structural length of the knife gate valve, the flow resistance is small, and it is not easy to accumulate materials, especially suitable for the installation of large pipelines such as conventional powder and low-pressure liquid fluid, which rely on self-weight blanking or low-pressure transportation. The VATTEN®KGV series knife gate valve features a unique wedge-shaped ram design. The composite combination seat can better adapt to the sealing and switching requirements of different working conditions. At present, this series of knife gate valves has been widely used in many fields and industries.