The Hobart 19197 top burner valve is a manual gas control component designed with an OFF/ON function and 1/8-inch MPT by 3/8-inch–27 threaded connections for integration into burner assemblies. It works by opening or closing the internal valve mechanism to allow or stop gas flow to the burner as needed during operation. This simple control helps manage ignition and shutdown processes safely. Benefits include reliable gas regulation, secure threaded connections, easy manual operation, and durable construction suited for commercial cooking environments, making it a practical replacement part for maintaining proper burner control and equipment safety.