Gate Valve

About Gate Valve

A gate valve is a sliding type of Boiler valve. In the gate valve, the closure membrane is a metal gate. A gate valve is a type of valve that uses a gate, or wedge, to control the flow of fluid. The gate is a flat plate that is attached to a stem. When the stem is turned, the gate moves up or down, blocking or allowing the flow of fluid.

These gates slide down to close the valve. The flow area is equal to the area of the pipe in fully open condition which results in negligible pressure drop across the valve.

These valves are usually used in on/off conditions. In partially open conditions due to vibrations, the valve is exposed to quick wear and tear. These valves find their use in the petrochemical industry due to the fact that they can work with metal-metal sealing.