Unidirectional Unidirectional Knife Gate 19 Series Knife Gate Valve body made of cast iron or stainless steel. In strict accordance with the relevant quality standards, in line with EN ISO 9001 quality standard. Description: 19 series unidirectional knife gate valve made of cast iron or stainless steel. In strict accordance with the relevant quality standards, in line with EN ISO 9001 quality standard. Depending on the medium, choose different sealing materials. Knife Gate Valves are generally the next shot, and can also provide dark rod, you can install a variety of drives. Scope: Suitable for water systems, compressed air, sewage systems and water purification systems, chemical and food industry systems. Or the use of media for viscous liquids with suspended solid particles. Can be used for throttling or regulating the flow, with a self-cleaning function. Diameter: DN50-600