Plug valve (also called plug valve) is a common type of valve, mainly used for fluid control, especially in situations where rapid opening and closing of fluid is required. The working principle of the plug valve is to achieve fluid switching control through a rotating plug with a circular or conical hole, which rotates in the valve body. Due to its simple structure and convenient operation, plug valves are widely used in many industrial fields.
Advantages of plug valves:
Simple structure: The structure of the plug valve is relatively simple, and it is easy to repair and maintain.
Easy operation: Since the plug valve usually only needs to rotate 90° to complete the switching operation, it is very suitable for rapid opening and closing.
Strong corrosion resistance: The design of the plug valve is suitable for handling more corrosive or viscous fluids.
Good sealing: The plug valve has good sealing and can effectively prevent leakage.
Main application areas of plug valves:
1. In the transportation, processing, storage and other links of oil and natural gas, plug valves are often used for rapid switching and isolation of fluids. They can withstand higher pressures and larger flows, and are suitable for large flow and high pressure occasions such as oil pipelines and natural gas pipelines.
2. In the chemical production process, plug valves are used to control the flow of various chemicals, especially in the transportation of highly corrosive or toxic substances, plug valves can effectively prevent leakage and pollution.
3. In water treatment and water supply systems, plug valves are used to control the opening and closing of water flow to ensure the efficient operation of the system.
4. In HVAC systems, plug valves can be used to control the flow of hot and cold water to ensure the normal operation of air conditioning and heating systems.
5. Food and pharmaceutical industries
6. In high temperature and high pressure environments such as metallurgy and mining, plug valves are often used for switch control and flow regulation.
7. Plug valves are widely used in gas pipeline systems to control the flow and pressure of gas to ensure the safe transportation of gas.
8. In hydraulic and pneumatic systems, plug valves are usually used to control the flow of liquids or gases, especially for the start-up or shutdown of equipment.

In general, plug valves are suitable for industrial systems that require fast opening and closing and have high requirements for sealing, especially in the fields of oil and gas, chemical industry, HVAC, metallurgy, pharmaceuticals, etc.