‌Metal Compensator is a device capable of maintaining the stability of piping systems under temperature variations. It compensates for pipeline length changes and displacements caused by factors such as thermal expansion and contraction through the elastic deformation ability of its materials.‌

This compensator is typically composed of accessories such as bellows, end pipes, supports, flanges, and conduits, with bellows being the core component. Bellows possess excellent elastic properties, allowing them to deform and expand to a certain extent, thereby relieving stress in the piping system‌12. This compensator can compensate for axial, radial, and angular thermal deformations of pipelines and absorb equipment vibrations, reducing their impact on the pipeline‌2.

The main characteristics of metal compensators include high precision, high reliability, and ease of operation. They have a wide compensation range and can operate within a temperature range of -200℃ to 1000℃. They effectively alleviate structural deformations and damages caused by thermal expansion, ensuring the safe and stable operation of equipment‌3. Additionally, metal compensators exhibit good corrosion resistance, high temperature resistance, and shock absorption properties, capable of absorbing axial and lateral displacements of pipelines‌4.

Metal compensators are widely used in various industrial fields, such as petrochemicals, power, metallurgy, and water supply and drainage systems, for transporting gaseous and liquid media like hot water, steam, and crude oil. In particular, stainless steel metal bellows compensators are widely applied in the connection and piping systems of petroleum, natural gas, and chemical equipment in the petrochemical industry‌2.

However, the service life of metal compensators is limited and needs to be inferred based on operating conditions, such as fatigue cycles, operating temperatures, and corrosion resistance. After reaching their service life, their materials may undergo different degrees of aging, oxidation, or fatigue, making them unsuitable for continued use. In such cases, they should be promptly replaced with new metal compensators‌5.

In summary, metal compensators play a crucial role in modern industrial piping systems. Through their unique elastic deformation ability, they effectively solve pipeline displacement and stress issues caused by temperature changes and mechanical vibrations, ensuring the safe operation of piping systems.

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China factory industrial metal hose and corrosion-resistant piping Metallic Expansion Joint