What Are Gate Valves? Gate valves are valves that operate by lifting of a round or rectangular gate out of the path of the fluid. This valves facilitates only unidirectional flow, but unlike globe valves they give a full bore flow to the fluid. The round or wedge shaped ring is known a gate as it moves in a perpendicular direction to the flow of the fluid. The threaded stem of the valve can be a rising or a non-rising type. The rising types provides a visual indication of the position of the valve, i.e open or closed. The non rising stem type is incapable of such indication and is generally fitted where there are space constraints. Just like any other valves, Gate valve too have flanged ends in order to connect them to the pipelines. The valve can be made of stainless steel, gun metal , cast iron or cast carbon steel. Usage of Gate Valves Gate valves are used in applications where a full unresthttps://boost.nowfloats.com/Images/Header/send-button.svgricted flow of the fluid is desired. As the gate can be opened to the full bore it provides very less frictional loss. Gate valves are not suited for regulating flow as the gate arrangement allows the valve to remain in either fully closed or open position.