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Standard SRV Removal & Transport
Safety Relief Valve
Maintanence
Guidelines for safely removing Safety Relief Valve and transporting thme to the workshop
POC/001 Supervisor
SRV bench Testing & Calibration
Safety Relief Valve
Calibration
Guidelines for safely removing Safety Relief Valve and transporting thme to the workshop
POC/001 Supervisor

Standard SRV Removal & Transport

Guidelines for safely removing Safety Relief Valve and transporting thme to the workshop
Safety Relief Valve POC/001 Supervisor
Maintanence Edit

4. Safety Precautions
Ensure lockout/tagout (LOTO) of the valve and connected system.
Confirm that the system is depressurized and drained.
Use proper lifting techniques and tools for heavy valves.
Maintain proper ventilation for solvent cleaning.
Use PPE at all times.
5. Procedure
5.1 Pre-Repair Inspection
Verify valve type, size, and identification tag.
Check prior maintenance records for recurring issues.
Visually inspect for leaks, corrosion, cracks, and physical damage.
Document the condition with photos and notes.
5.2 Valve Isolation & Preparation
Isolate the valve from the process line.
Depressurize and drain any residual fluid.
Clean the valve exterior to prevent contamination during repair.
Prepare tools, spare parts, and work area.
5.3 Disassembly
Loosen and remove bolts, nuts, and fasteners carefully.
Remove valve bonnet, stem, disc, and other components systematically.
Keep parts organized and labeled for reassembly.
Inspect components for wear, corrosion, or damage.
5.4 Component Cleaning & Repair
Clean all parts using appropriate solvents.
Grind or lap valve seats and discs if required.
Replace worn or damaged seals, gaskets, stems, or other components.
Lubricate moving parts with recommended industrial lubricants.
5.5 Reassembly
Reassemble components in reverse order of disassembly.
Apply recommended torque on bolts using a calibrated torque wrench.
Ensure proper alignment and sealing of moving parts.
5.6 Testing & Quality Check
Perform pressure testing according to valve specification (hydraulic/pneumatic).
Check for leaks, proper movement, and operational integrity.
Record test results and validate against manufacturer standards.
5.7 Reinstallation
Reinstall valve into the system, ensuring alignment with pipeline.
Remove lockout/tagout after confirming safety.
Gradually pressurize the system and check for leaks.
Update maintenance records and log repair details.

Confirm work order and valve service request
Verify valve type, size, and specifications.
Check previous maintenance records and repair history.
Ensure all necessary permits (e.g., hot work, confined space) are obtained.
Notify operations team about valve shutdown or isolation.
Ensure the valve is isolated from process lines (lockout/tagout applied).
Depressurize and drain the system connected to the valve.
Verify that hazardous materials or fluids are completely removed.
Wear appropriate PPE (helmet, gloves, goggles, safety shoes, ear protection).
Confirm area is safe for maintenance.
Required Tools
  1. Torque wrenches, spanners, hammers
  2. Valve lapping/grinding tools
  3. Gasket, seal, and O-ring kits
  4. Lifting equipment (hoists, slings)
  5. Pressure testing rigs (hydraulic/pneumatic)
  6. Cleaning brushes, solvent, cloths
  7. PPE: helmet, gloves, goggles, boots, ear protection

Conduct pressure test (hydraulic/pneumatic) as per valve specification.
Check for leaks at seats, joints, and connections.
Verify smooth operation of valve (open/close cycles).
Confirm correct torque on all fasteners.
Ensure all lockout/tagout devices have been removed properly.
Confirm valve isolation points are correctly reinstated if part of a system.
Verify no hazards remain in the work area (tools, spills, debris)
Check that PPE is removed safely and disposed of or stored properly.
Record all replaced parts (gaskets, seals, stems, seats, etc.).
Document test results (pressure, leak, and operational check).
Take photos of valve after reinstallation.
Update maintenance log and work order.
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