What Is the Function of a Gate Valve?

A gate valve is a valve that adjusts the flow of fluid in a pipeline by moving the gate. Its main function is to control the fluid in the pipeline. Gate valves are often used for flow control in large-diameter pipelines and for cutting off small-diameter pipelines. More specific functions can be divided into the following types:

1. Fluid blocking: The gate valve uses the vertical lifting mechanism of the gate to effectively block the flow of fluid in the pipeline or device, cut off the fluid medium or stop the flow, so as to achieve the purpose of controlling the movement of the fluid.

2. Flow control: By adjusting the opening degree of the gate in the gate valve, the flow of the fluid can be accurately controlled. The change of the gate position can directly affect the channel area of the fluid, and then adjust the flow level of the medium as needed to ensure effective control of the fluid flow.

3. Pipeline and equipment protection: When the gate valve is in the closed state, it can completely block the flow of the medium in the pipeline or equipment, providing necessary protection for the pipeline and equipment. When performing maintenance and repair operations on pipelines or equipment, the gate valve can be closed to avoid interference or harm to the operation caused by the flow of the medium.

4. Backflow protection: Some gate valve designs have the ability to prevent media backflow, which depends on the specific structure of the gate and its installation position in the system. This function is intended to ensure the safe operation of pipelines and equipment and effectively prevent possible damage caused by media backflow.