Gate valve is a common type of valve, its main role is to open or close the gate to control the flow of fluid medium. Gate valves are usually used in pipelines or equipment that need to cut off or cut off the flow of fluid media, and can be used to control the flow of a variety of media such as liquids, gases and steam.
The main functions of the gate valve include:
1. Cutting off the fluid flow: gate valve through the lifting and lowering movement of the gate, can be cut off the fluid flow in the pipeline or equipment, to achieve the cut off of the fluid medium or stop the flow, so as to play a role in controlling the flow of the medium.
2. Adjustment of fluid flow: gate valve by adjusting the opening of the gate, you can realize the regulation of fluid flow. By changing the position of the gate, you can control the circulation area of the fluid, thereby regulating the size of the flow of the medium to achieve the control of the fluid flow.
3. Pipeline or equipment protection: gate valve in the closed state, the pipeline or equipment in the medium can be cut off, so as to play the role of pipeline or equipment protection. In the maintenance and repair of pipelines or equipment, you can close the gate valve to avoid the flow of media on the maintenance operation.
4. Prevent backflow: some gate valves have the function of preventing backflow, which can be realized through the design and installation position of the gate to prevent the effect of media backflow, thus protecting the safe operation of pipelines and equipment.
The need for the actual process requirements and the nature of the fluid medium to select the appropriate gate valve type, material and sealing structure, and reasonable operation and maintenance of the gate valve to ensure its normal operation and to protect the safe operation of pipelines and equipment.
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