Field of technology: Industrial Machinery and Processes
Patent granted on: Tue, 09 Jun 2020
A gate valve includes a solid wedge-shaped disc integrated with a cartridge at opposite ends thereof. Each cartridge includes rollers, guides and scrapers therein to roll along respective internal ribs while cleaning the ribs. The disc moves back and forth within the gate valve via the cartridges along ribs to open and close a water passage way formed in the gate.