How to design FKM TC seals?
1. Determine the operating environment.
The first step in designing FKM TC seals is to determine the operating environment. Factors to consider include temperature, media compatibility, pressure and speed.
2. Select the appropriate FKM material.
Once the operating environment has been determined, select the appropriate FKM material. FKM materials come in different grades and each has its own unique set of physical properties. Choose the grade that is best suited to the operating environment.
3. Calculate gland fill percentage.
The next step is to calculate the gland fill percentage. This is the percentage of the available space in the gland that is filled by the seal when it is installed. The recommended gland fill percentage is 85-95%.
4. Determine the groove dimensions.
With the gland fill percentage in mind, determine the groove dimensions. The dimensions of the groove must allow for the required gland fill percentage while also providing enough space for the seal to expand and contract with changes in temperature.
5. Verify interference fit.
An interference fit is required for FKM TC seals to be effective. Verify that the seal will be held securely in place by calculating the interference fit. The recommended interference fit is 1-2% of the seal’s cross-sectional diameter.
6. Verify compression.
FKM TC seals must be compressed in order to create a tight seal. Verify the compression by calculating the amount of compression at the thinnest part of the seal. The recommended compression range is 10-20%.
7. Consider the seal design.
Finally, consider the design of the seal itself. FKM TC seals come in a variety of shapes and sizes, and each design may have different performance characteristics. Choose the design that is best suited to the application.
By following these simple steps, it is possible to design FKM TC seals that will perform reliably in a wide variety of applications. Remember to always select the appropriate FKM material, calculate the gland fill percentage, determine the groove dimensions, verify interference fit and compression, and choose the seal design that is best suited to the application.
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