Proper insertion of cylinder valves help prevents leaking. A clean surface, proper lubrication and proper torque ensure a tight seal between the cylinder and the valve.
An injury of a guest by a carbon dioxide cylinder results in a lawsuit. The lawsuit lists 5 different claims involving everyone from the facility, to the handler to the business that rented the cylinder.
Don't condemn a perfectly good cylinder. Learn to tell the difference between a TAP stop and a crack.
A 737 aircraft landed at an airport near the Caspian Sea. 142 passengers had departed along with the 5 crew members. The crew reported that the cabin oxygen pressure was at 900 psi. The ground crew was attempting to trans fill the oxygen from an 1800 PSI oxygen source. It is reported that the ground crew tested the equipment to assure the supply gas was at 1800 psi.
Ships and buildings are outfitted with inert gas fire suppression systems. In the event of a fire, the cylinder valves activate, filling a room or compartment with inert gas, displacing the oxygen. Since fire requires oxygen to continue combustion, removing the oxygen from the room or compartment stops the fire.
Facilities and companies follow strict regulations and safety protocols to prevent accidents. The aviation industry is just one example where safety is paramount. If an issue develops on a plane it could be catastrophic. Aviation systems are engineered to the highest standards, and the slightest issue can ground a plane. Systems are checked, re-checked and pre-flight inspections are conducted before each flight.