Fluororubber sealing ring has excellent temperature resistance, and its high temperature resistance mainly depends on different kinds of fluororubber materials and specific seal design and working conditions.
Common fluoro rubber seals, such as FKM (General fluoro rubber), have a temperature range of about -20°C to +200°C. The FFKM (complete fluororubbers), a high-performance fluororubbers material, has a temperature range of -20°C to +300°C and even higher. In addition, the temperature range of FEPM (flurane rubber) is approximately -30°C to +200°C.
At the same time, the use temperature of fluorine elastomer under static seal is best limited to about -26 ° C (-15 ° F) to 230 ° C, although it can be used for a short time at 295 ° C, but more than 230 ° C, its service life will be shortened. The most suitable temperature for use under dynamic seals is between -15 ° C and 280 ° C.
Therefore, the maximum temperature of the fluoro rubber seal ring is generally between 200°C and 300°C, but the specific value needs to be determined according to the material type, design and working conditions and other factors. Please note that although the fluorine rubber seal is resistant to high temperature, it is still necessary to pay attention to its service life and performance changes during use to avoid exceeding its tolerance range.