Detailed explanation of the types and characteristics of metal seals

As an important sealing element, metal seals play a vital role in various industrial fields. This article will introduce the types and characteristics of metal seals in detail to help you better understand and choose the sealing solution that suits your needs.

1. Metal plane seals

Features: Metal plane seals are usually made of two flat metal surfaces that are in close contact through pressure or bolts to achieve a sealing effect.

Application: Mainly used for sealing high-pressure, high-temperature, and corrosive media, such as pipeline connections, valves, pumps and other equipment.

2. Metal elastic seals

Features: Metal elastic seals are made of metal materials, have good elasticity and plasticity, and can maintain sealing performance under large deformation.

Application: Widely used in static sealing and dynamic sealing, suitable for sealing high-temperature, high-pressure, high-speed, and corrosive media, such as automobile engines, aerospace equipment, etc.

3. Metal thread seals

Features: Metal thread seals use the mutual tightening of metal threads to produce close contact between metal surfaces to achieve a sealing effect.

Application: Mainly used in the joints of pipelines, valves, pumps and other equipment, with reliable sealing and good pressure resistance.

4. Metal packing seals

Features: Metal packing seals use metal wires, metal belts and other fillers to fill the sealing gap, and achieve sealing effect by pressing or compacting the fillers.

Application: Suitable for sealing of high temperature, high pressure and highly corrosive media, such as chemical equipment, petrochemical equipment, etc.

5. Metal bellows seals

Features: Metal bellows seals are composed of bellows, have good elasticity and flexibility, and can adapt to various complex shapes of sealing surfaces.

Application: Widely used in the sealing of pipelines, pumps, valves and other equipment, with good pressure resistance and corrosion resistance.

6. Metal welding seals

Features: Metal welding seals use welding technology to permanently connect metal materials to form a sealed joint.

Application: Suitable for high temperature, high pressure and strict sealing requirements, such as nuclear power plants, aerospace and other fields.

In summary, metal seals come in many types, each with its own characteristics, and play an important role in different industrial fields. Choosing suitable metal seals requires considering factors such as sealing requirements, working environment, and medium characteristics, and making reasonable choices based on specific circumstances to ensure the safe operation of the equipment and the sealing effect.

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