A detailed CLOSED EXPANSION TANK SEMI ANNUAL preventive maintenance checklists
General Inspection
Pressure and Temperature Checks
Water Level and Fluid Quality
Valves and Connections
- Check for smooth operation of each valve.
- Ensure valves open and close without obstruction.
- Listen for unusual noises during operation.
- Confirm that valve positions are correct per system requirements.
- Inspect all connections for visual signs of leakage.
- Tighten any loose fittings with appropriate tools.
- Use a leak detection solution to confirm integrity.
- Ensure all connections are compliant with specifications.
- Identify all moving parts that require lubrication.
- Use the manufacturer's recommended lubricant type.
- Apply lubricant evenly and avoid excess application.
- Wipe off any excess lubricant to prevent buildup.
- Consult system diagrams for valve positioning.
- Manually check each valve's position.
- Adjust any valves that are incorrectly positioned.
- Document any discrepancies for follow-up.
- Look for rust, pitting, or discoloration.
- Check the valve body and handle for cracks.
- Test operation to ensure they fully isolate flow.
- Replace any valves showing significant deterioration.
- Open and close each drain valve several times.
- Check for smooth operation without binding.
- Inspect for any leaks during operation.
- Clean any debris around the valve mechanism.
- Perform a visual inspection around all valves.
- Look for puddles or damp spots.
- Investigate the source of any fluid accumulation.
- Address leaks immediately to prevent corrosion.
- Check the manufacturer's specifications for pressure settings.
- Manually test the relief valve operation.
- Observe if the valve opens at designated pressure.
- Replace or repair valves that do not function properly.
- Check electrical connections for secure fittings.
- Test actuator response to manual controls.
- Look for any signs of wear or damage.
- Verify signal integrity with testing equipment.
- Observe check valves during operation.
- Ensure they close fully without leaks.
- Inspect for signs of wear or malfunction.
- Replace any check valves that fail to operate correctly.
- Check for loose mounting hardware.
- Look for any misalignment in piping.
- Monitor for excessive vibration during operation.
- Implement corrective measures if vibration is detected.
- Verify that all valves have visible labels.
- Use durable labeling materials resistant to environmental factors.
- Maintain labeling for accuracy and clarity.
- Replace any labels that are worn or illegible.
- Record inspection results in a maintenance log.
- Note any repairs performed or required.
- Include photos or diagrams where applicable.
- Schedule follow-up actions based on findings.
Use in Manifestly