Valves and plugs are common and important components in industrial piping systems, and they play a key role in fluid control.

The following are their main applications and features:
# Application of valves
1. Gate valves to cut off the flow of media: used in fully open or fully closed situations, widely used in water, oil, and steam pipelines.
2. Stop valves: suitable for working conditions that require frequent operation, often used in small and medium-sized pipelines.
3. Regulating valves that adjust flow or pressure: such as Ball Valves or butterfly valves, which can adjust the flow and pressure of the medium, are often used in chemical, pharmaceutical and other fields.
4. Check valves that prevent medium backflow: used to prevent medium backflow in pipelines, such as pump stations or boiler outlets.
5. Safety valves for special purposes: used for overpressure protection, widely used in pressure vessels or boiler systems. 6. Steam traps: mainly used to discharge condensate in steam pipelines. They are multifunctional and have various specifications. They can be used in complex working conditions such as high temperature, high pressure, and corrosive media.
# Application of plug: plug is a device that controls fluid switch by rotating the plug body, and is usually used in the following scenarios:
1. The plug with quick opening and closing function has a simple structure and short opening and closing time, and is often used in pipelines that need frequent switching.
2. Plug for wear-resistant and corrosion-resistant environment: such as oil and gas pipelines in oil and natural gas transportation. Plug valves are often made of special alloy materials and can adapt to corrosive media.
3. Occasions with high sealing performance requirements: such as gas pipelines and chemical pipelines, plug valves can provide reliable sealing to avoid leakage.
4. Control plug with special functions: three-way or four-way plug valves can be used in multi-flow switching scenarios, such as multi-media mixing or diversion. Its main features: small size, compact structure, easy operation, but not suitable for large-caliber or long-term high-pressure conditions.
--### Comparison and selection of valves and plugs: suitable for various complex needs, with a wide range of types and flexible selection.
1. The plug performs well in the working conditions of fast opening and closing and high sealing requirements. It has a simple structure and is suitable for small and medium-sized pipeline systems. When selecting, it is necessary to comprehensively consider the pipeline medium, pressure, temperature and operating requirements.