O-ring is a circular sealing component, usually made of rubber or other elastic materials. Its cross section is circular or oval, which can provide good sealing performance when compressed. O-ring is widely used in various mechanical equipment, instruments and pipeline systems. Its main functions are: 1. Prevent liquid or gas leakage: O-rings can effectively prevent liquid or gas leakage at the joint. For example, in a pipeline system, O-rings can be placed on the joints to avoid pipeline leakage. 2. Cushion vibration and shock: O-rings have certain flexibility and elasticity, which can cushion the vibration and shock of mechanical equipment, thereby reducing equipment noise and wear. 3. Heat-resistant and corrosion-resistant: O-rings are usually made of rubber or heat-resistant and corrosion-resistant materials, which can work in harsh environmental conditions and have a long service life. In summary, O-ring is an important sealing material, widely used in industrial, agricultural, medical and other fields, playing an irreplaceable role.One of the factors that makes O-rings so popular as sealing components is their ability to perform under a wide range of conditions. They can operate effectively over a wide range of temperatures spanning from as low as -70°C to as high as 260°C. This versatility makes O-rings suitable for use in multiple industries. O-rings are manufactured with various durometers, which refers to their level of hardness or softness. O-rings with a softer durometer are better suited for applications requiring significant deformation, such as thermal cycling, while harder O-rings are more appropriate for applications that require high-pressure sealing, such as in hydraulic systems.Various industries use O-rings, including aerospace, automotive, petrochemicals, and many others. O-rings must meet stringent quality checks before being approved for use in products such as aircraft engines, missile systems, spacecraft, and automotive transmissions. As with any component, improperly maintained O-rings can develop issues. Regular maintenance and replacement of O-rings can avoid system downtime, efficiently improving equipment performance and increasing their service life. In conclusion, O-rings are a staple sealing component used in various industries. They maintain their sealing ability under harsh conditions, are versatile, and readily available in various materials, durometers, and sizes. With proper care and maintenance, O-rings can provide an effective sealing solution for many years in a variety of applications.