Compared with solid o-rings, Teflon® encapsulated o-rings function in a broader range of environments, usually entailing very hostile chemicals, extreme temperatures or both.
Seneca Rubber can supply encapsulated o-rings in two grades of Teflon®, FEP (fluorinated-ethylene propylene) or PFA (perfluoroalkoxy), and in several elastomer materials (with a hollow-core version for specialized needs). The various combinations of these materials cover a full spectrum of operating conditions for just about any sealing application.
The most versatile grade when considering overall corrosion resistance, sealing capability, and temperature. Operational temperature ranges from -450℉ to +400℉ (-267℃ to +205℃)
A fluorocarbon copolymer offering greatly improved mechanical and creep properties at elevated operating temperatures. Operational temperature ranges from -450℉ to +500℉ (-267C to +260C)
This fluoroelastomer combines exceptional mechanical properties and compression set resistance. This core has a Shore A hardness of 75 with a suggested operating temperature range of -10°F to +300°F (-23°C to +150°C).
This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied. This core has a Shore A hardness of 70 but offers a broad operating temperature range of -80°F to +500°F (-62°C to +260°C).
Hollow core O-rings provide effective sealing properties in applications where lower compressive forces may limit the sealing ability of standard O-rings. The combination of a hollow core with a slightly lower hardness offers a more flexible O-ring requiring less energy to activate its sealing capability.
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