Knife Gate Valve factory MDO MODEL Bi-directional wafer style knife gate valve for general industrial and water applications The MDO model knife gate is a bi-directional valve designed for general industrial service applications. The design of the body and seat assures non-clogging shutoff on suspended solids in industries such as: 鈼廤astewater treatment plants 鈼廋hemical plants 鈼廎ood and...