Aux 2 Unit 11 Q4

SCUBA cylinders, being vital life-support equipment, require stringent maintenance and inspection to ensure their safety and reliability. Here’s a breakdown of the key procedures:

Regular Inspections:

• Visual Inspection (Annual):
  • External: Check for dents, cracks, bulges, corrosion, or any damage to the paint or markings.
  • Internal: Inspect for corrosion, contamination, or foreign objects using a bright light and, if possible, a borescope.
  • Valve: Inspect the valve for damage, leaks, and proper operation. Check O-rings and replace if necessary.
  • Burst Disc: Ensure the burst disc is intact and not corroded.
• Hydrostatic Testing (Every 5 years):
  • Performed by a certified facility.
  • The cylinder is filled with water and pressurized to 5/3 of its working pressure to check for elastic expansion and permanent expansion.
  • This test assesses the structural integrity of the cylinder and its ability to withstand pressure.
• Eddy Current Testing (for 6351-T6 aluminum alloy cylinders, every 5 years):
  • Non-destructive test to detect cracks or other defects in the cylinder wall.

Additional Maintenance:

• Cleaning: Regularly clean the cylinder’s exterior to remove salt, dirt, and other contaminants that can accelerate corrosion.
• Internal Cleaning: If contamination is suspected, have the cylinder professionally cleaned and inspected.
• Valve Maintenance: Periodically lubricate and service the valve according to the manufacturer’s recommendations.
• Proper Storage: Store cylinders in a cool, dry place, away from direct sunlight and corrosive environments. Secure them upright to prevent damage to the valve.

Safety Precautions:

• Authorized Personnel: Only qualified and certified technicians should perform maintenance and inspections on SCUBA cylinders.
• Proper Tools and Equipment: Use appropriate tools and equipment designed for working with high-pressure cylinders.
• Safety Gear: Wear safety glasses and gloves when handling cylinders.
• Pressure Relief: Ensure the cylinder has a properly functioning pressure relief device (burst disc) to prevent over-pressurization.

Record Keeping:

• Maintain a logbook of all inspections, tests, and maintenance performed on each cylinder.
• Record dates, results, and any corrective actions taken.

Importance of Maintenance and Inspection:

• Ensures Safety: Regular inspections and maintenance help identify and address potential issues before they become critical, ensuring the safety of divers.
• Prevents Accidents: A well-maintained cylinder reduces the risk of catastrophic failures like ruptures or leaks, which can be life-threatening underwater.
• Extends Cylinder Lifespan: Proper care and maintenance can significantly extend the service life of SCUBA cylinders.
• Regulatory Compliance: Adhering to inspection and testing requirements is mandatory for compliance with safety regulations and ensures continued use of the cylinders.

Remember, proper maintenance and inspection of SCUBA cylinders are not only crucial for safety but also for enjoying a worry-free diving experience.