A DN1400 Gate Valve is a type of valve designed for large-diameter applications, typically with a nominal diameter of 1400 millimeters, about 56 inches. It operates by lifting a solid barrier, perpendicular to the flow of fluid within the pipeline. This action effectively opens or closes the valve. The gate is most commonly wedge-shaped to provide a tight seal when closed. The design of the gate valve allows for minimal obstruction to fluid flow when fully open, requiring little space along the pipe axis, making it ideal for high-flow applications without significant pressure drop.

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