A detailed CLOSED EXPANSION TANK ANNUAL preventive maintenance checklists
1. Inspection of Tank Condition
- Use a flashlight to illuminate the surface.
- Look for discoloration, flaking, or bubbling.
- Document any areas with significant corrosion.
- Check seams and welds closely for hidden rust.
- Walk around the tank to view all sides.
- Run your hand over the surface to feel for irregularities.
- Take photos of any dents or cracks for records.
- Note the location and size of any damage.
- Examine the paint for chips or peeling areas.
- Check for rust spots underneath damaged paint.
- Assess the overall uniformity of the coating.
- Touch up any areas needing repainting as needed.
- Look for puddles or wet spots around the tank.
- Use a cloth or paper towel to check for moisture.
- Check joints and connections for signs of leaks.
- Document any findings for follow-up.
- Inspect support beams and legs for rust or damage.
- Check for signs of settling or cracking in the foundation.
- Ensure that supports are level and properly aligned.
- Look for any signs of shifting or instability.
- Inspect gaskets and seals for wear or damage.
- Ensure manway covers are tight and secure.
- Check for any leaks around access points.
- Document any needed repairs or replacements.
- Check for tears, holes, or discoloration in insulation.
- Assess the condition of insulation material around joints.
- Inspect for mold or moisture under insulation.
- Note areas needing insulation repair or replacement.
- Identify areas of previous repairs or patches.
- Inspect the quality and durability of repairs.
- Check for signs of wear around repair sites.
- Document any repairs needing further attention.
- Check that labels are clear and not faded.
- Ensure labels are securely attached to the tank.
- Verify that all required safety information is present.
- Replace any labels that are damaged or missing.
- Clear the area around the tank of any obstacles.
- Look for loose items that could fall or cause damage.
- Ensure proper access for maintenance personnel.
- Document and remove any hazards found.
- Inspect pipes for rust, leaks, or cracks.
- Check fittings and connections for tightness.
- Look for signs of corrosion or flaking.
- Document any issues needing repairs.
- Check anchor bolts for tightness and integrity.
- Observe the tank for any signs of movement.
- Ensure the tank is level and stable.
- Document any concerns regarding anchoring.
- Look for discoloration or unusual growths on the surface.
- Check for musty odors indicating biological growth.
- Assess areas around seals and fittings for growth.
- Document findings and recommend cleaning if necessary.
2. Valve and Fitting Examination
3. Internal Inspection
- Ensure all valves are closed.
- Confirm that all fluids have been drained.
- Use proper lockout/tagout procedures.
- Conduct an atmospheric test for safety.
- Ensure adequate ventilation before entry.
- Use a flashlight to illuminate the interior.
- Carefully remove any visible debris.
- Assess sediment depth and composition.
- Use a vacuum or appropriate method for removal.
- Record the volume of sediment found.
- Inspect for peeling, cracking, or discoloration.
- Check for areas of corrosion underneath coatings.
- Use a thickness gauge to measure coating integrity.
- Document any areas needing repair or re-coating.
- Evaluate the overall effectiveness of the lining.
- Look for discoloration or pitting on surfaces.
- Use a wire brush to clean small areas for inspection.
- Test corrosion with appropriate tools.
- Identify the source of any moisture causing corrosion.
- Document all findings for maintenance records.
- Look for cracks or incomplete welds.
- Check for signs of thermal fatigue.
- Use ultrasonic testing if necessary.
- Assess joint alignment and fit.
- Record any issues for repair evaluation.
- Inspect seams and connection points carefully.
- Look for wet spots or staining.
- Use dye or leak detection fluid if needed.
- Evaluate potential sources of leaks from external systems.
- Document any leaks and recommend repairs.
- Inspect for structural integrity and secure attachment.
- Check for signs of wear or damage.
- Ensure baffles are positioned correctly.
- Evaluate any seals or joints for leaks.
- Document findings for reference.
- Activate sensors and check for accurate readings.
- Manually adjust floats to verify response.
- Inspect electrical connections for corrosion.
- Replace any malfunctioning components immediately.
- Document test results for maintenance logs.
- Check for tears, wear, or water damage.
- Inspect for any mold or chemical degradation.
- Ensure insulation is securely attached.
- Evaluate the effectiveness of insulation for energy efficiency.
- Document any areas needing replacement.
- Use calibrated measuring tools for accuracy.
- Compare measurements against original specifications.
- Check for any signs of deformation.
- Document all measurements thoroughly.
- Report discrepancies to engineering for review.
- Check for debris accumulation in drains.
- Test drainage flow with water or appropriate fluid.
- Inspect connections for leaks or corrosion.
- Document any blockages for immediate action.
- Ensure all drainage meets compliance standards.
- Take clear, well-lit photographs of all inspected areas.
- Make detailed notes of observations and findings.
- Organize documentation systematically.
- Share documentation with relevant personnel.
- File reports in a central location for easy access.
- Schedule a meeting with maintenance team.
- Present findings clearly and concisely.
- Discuss potential corrective actions.
- Assign responsibilities for any required repairs.
- Document decisions and follow-up actions.
Use in Manifestly