Disassembly maintenance and replacement of core components

Check the valve core and seat: Observe whether the sealing line is continuous and bright under strong light. If there are any visible scratches, dents, or corrosion points, they must be replaced in pairs.
Check all seals: O-rings, gaskets for loss of elasticity, dents, or cracks. It is recommended to replace all static seals with new ones during maintenance.
Check the diaphragm and spring: the diaphragm should be flat without holes or layers; The spring should be rust free and its free length should meet the standard.