Gate valve is a linear motion valve that controls the flow of fluid (liquid or gas) through a pipeline by raising or lowering a gate (a flat or wedge-shaped disk) across the flow path. Gate valves can have either a rising or non-rising stem. In a rising stem design, the stem moves up and down as the valve opens and closes. In a non-rising stem design, the stem remains stationary, and the gate is raised and lowered internally. Their robust design and ability to provide a tight seal make them suitable for diverse settings where on/off control is crucial.