It is known as a local control valve. It’s used as a shut-off valve on water feed lines to disconnect (control) unmoved zones. A valve or rising stem gate valve is employed to shut off or management. Arising stem valve fully open positions is of a gate valve that doesn’t disturb uniform flow, allows the open position to be determined with the pin moving up and down, and permits for electrical following with a following (supervisory) switch hooked up. it’s less hydraulic loss compared to a valve.