1. stress testing
method
：Static seal: 1.5 times the working pressure for 30 minutes, pressure drop ≤5%.
Dynamic seal: step up pressure test, observe the leakage point.
2. Leak diagnostics
Common leak types
：interface leakage
The sealing surface is uneven, and the groove needs to be reprocessed.osmotic leakage
Material is incompatible with the medium, replace the sealing material.
3. Regular maintenance
suggestion
：Check seal compression set every 500 hours (refer to ASTM D395).
Under high temperature conditions, replace the elastomer seals every 6 months.