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O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner circle to play a sealing role. O-ring seals still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali, abrasion, and chemical erosion. Therefore, the O-ring is the most widely used seal in hydraulic and pneumatic transmission systems.
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Perfluoroether rubber can resist more than 1600 kinds of chemicals such as strong acid, strong alkali, organic solvent, corrosive gas, high temperature superheated water-steam, ethers, ketones, esters, alcohols, aldehydes, amines, strong oxidants, etc. Medium corrosion, temperature resistance up to 320°C.
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Polytetrafluoroethylene (PTFE) O-rings have the same shape as general synthetic rubber O-rings. The whole process is processed by CNC turning without molds. Any size and quantity can meet customer needs. This O-ring is often used for strong acid and alkali corrosion and high-temperature or low-temperature medium seals. It can replace fluorine rubber rings and other rubber rings. High pressure resistant, not corrosion resistant and not high temperature resistant medium seal, widely used in aerospace, food, chemical and medical machinery fields.
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Polyurethane O-rings are especially suitable for dynamic loads, such as hydraulic seals, pneumatic seals and other harsh conditions. In many cases, polyurethane O-rings can be used to replace NBR because of their excellent mechanical properties.
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Ningbo Yuka Sealing Industry Co., Ltd.
Address: No.141, Gongmao 1st Road, Jishigang Industrial Zone, Haishu District, Ningbo City
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Youjia Sealing | Sealing Components
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