General Maintenance Procedure
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General Maintenance Procedure for Safety Relief Valves
- Disassembly & Preparation
- Careful disassembly of the valve and related components, with proper tagging and documentation
- Cleaning of metal surfaces; sandblasting or shot blasting applied if necessary
- Visual Inspection & Non-Destructive Testing (NDT)
- Detailed visual inspection of pressure-bearing critical components using ultrasonic, penetrant, or radiographic NDT methods
- Measurement, Analysis & Compliance Check
- Dimensional and technical parameter checks using precision instruments
- Verification of compliance with NACE, ASME, or API standards
- Documentation of measurement results
- Leak Detection & Tightness Testing
- Pressure tests applied to check sealing and connection integrity
- Inspection results recorded
- Surface Treatment
- Grinding, polishing, and protective coating to enhance corrosion resistance and surface quality
- Spare Part Replacement
- Replacement of seals, insulation, lubricants, and other critical parts in accordance with original specifications
- Maintenance of Connection Components
- Detailed servicing of components integrated with the valve
- Adjustment and functional testing performed
- Reassembly
- Precise reinstallation of the valve and components following maintenance and repair
- Final Testing & Inspection
- Hydrostatic and/or dynamic testing to verify operational readiness
- Comprehensive reporting of test results
- Final Calibration & Adjustment
- Calibration of safety relief parameters according to manufacturer specifications
- Labeling, Packaging & Reporting
- Full documentation of maintenance activities
- Final labeling and packaging for shipment readiness
