PTFE is a resin with excellent slip properties and weather resistance.
It is used to prevent the rubber O-ring from protruding, primarily using PTFE or filled PTFE.
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basic information
It is used to prevent the rubber O-ring from protruding, primarily using PTFE or filled PTFE. The use of backup rings is recommended for O-ring seals with fluid pressures of approximately 8 MPa or higher. For even higher pressure fluids, the use of filled corner rings is also effective. Additionally, backup rings help prevent issues caused by the peeling or twisting damage of O-rings, thereby extending their lifespan, even in low-pressure situations where protrusion is not a concern. There are three types of backup rings: spiral, bias cut, and endless, which should be used according to the application and conditions.
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Applications/Examples of results
Various machines
Company information
In the year 1907, during an era still dominated by a preference for foreign products, Ohno Company developed Japan's first packing for ships. It was recognized by both Mitsubishi and Kawasaki shipyards and was of such high quality that it was later used in the former navy's battleship Yamato, breaking the common belief at the time that domestic products were inferior to imported ones. Since then, we have continued to focus on our core business by adopting new materials such as fluororesin and super engineering plastics, developing processing technologies, and establishing a quality assurance system through obtaining ISO 9001 certification, all while responding to market and customer demands with a serious commitment to manufacturing. We will continue to maintain a spirit of challenge, value our customers and quality, and contribute to a new society. We have factories in Kobe City, Hyogo Prefecture, and Sasebo City, Nagasaki Prefecture, as well as sales offices in Tokyo, Osaka, Kobe, and Sasebo.
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