Core dimensions for selecting the customized seal factory

23/10/2026
Regardless of whichcustomized seal factory is chosen, it is recommended to conduct a systematic evaluation from the following four dimensions:
1. Non standard customization and surveying design capabilities
This is the foundation of customization. It is necessary to confirm whether customized seal factory has the ability to conduct on-site or sample surveying, 3D modeling and drawing. For the localization substitution of imported equipment seals, the factory's understanding of the original design principles and experience in modification are particularly crucial. You can investigate the equipment used by its surveying team and the mapping cycle.
2. Processing accuracy and quality control system
The reliability of customized parts depends on the machining accuracy. A key hard indicator is the flatness of the sealing end face, and the high-quality level should be controlled within 0.9 μ m (3 optical bands). Priority should be given to factories that have passed ISO9001 certification. If it involves high-risk areas such as petrochemicals, having API Q1 or API 682 certification or testing capabilities is more reliable. Each batch of products should be able to provide records of water pressure leakage and running in tests.
3. Experience in material selection and working condition adaptation
The customized seal factory should be able to provide targeted material solutions (such as silicon carbide/graphite, silicon carbide/silicon carbide, hard alloy combinations, as well as EPDM, FKM and other auxiliary sealing ring materials) based on your specific parameters such as medium, temperature, pressure, speed, and whether it contains particles, rather than recommending "universal" products. It is reasonable to request to view the material report.
4. Industry performance and after-sales support
Request the customized seal factory to provide successful cases similar to your working conditions, especially customized or import substitution experience in your industry (such as chemical, pharmaceutical, new energy, power).
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