Hazards of Oxygen Tanks

Oxygen is a gas that is vital to life, and to combustion. It can be compressed and stored in cylinders, and has many uses in both industry and medicine. Because it is highly combustible, however, oxygen is also hazardous. Oxygen tanks present a fire risk and can even explode. Thus, safety precautions must be taken when handling compressed oxygen cylinders.

Oxygen Enrichment

• Oxygen enrichment occurs when the air in a location becomes richer in oxygen than it normally is. This can happen when there are leaks in equipment, or when the valves on oxygen tanks are either opened accidentally or not closed properly. Some dangerous practices that can result in oxygen enrichment include using too much oxygen when welding or cutting, neglecting to adequately ventilate work areas and using oxygen tanks to dust off work areas or to cool down in a hot, enclosed environment.

  Such an oxygen-enriched atmosphere is dangerous because fires can start much more easily. For this reason, it's very important not to smoke where oxygen tanks are in use.

  To prevent leaks, all oxygen tanks and equipment must be well maintained. Areas where oxygen is in use should be well ventilated, and tank valves should always be closed securely after use.

Incompatible Materials

• Some materials are incompatible with oxygen, which means they can react violently with oxygen and may spontaneously combust or even explode. These include many plastics and metal alloys. If you need to replace or repair items such as gaskets, hoses, o-rings and pressure regulators, always ensure that the replacement parts are compatible with oxygen and appropriate for use with your oxygen tanks.

  Tape should never be used to fix leaks or seal pipes used with oxygen tanks, unless it is specifically intended for use with oxygen and recommended by the manufacturer of the oxygen equipment.

Improper Use of Oxygen

• Never use an oxygen tank in place of a container of inert gas, air or compressed air. Oxygen can be very dangerous when used for the wrong purpose. Don't use oxygen to inflate vehicle tires, power pneumatic tools, or for any purpose except where it is necessary.

  Improper use of oxygen tanks can cause fires and explosions. Oxygen can be ignited by small sparks or hot machinery. It can also react with oil, grease and chemicals, causing them to ignite or explode. Many people have been injured and even killed by improper use of oxygen tanks.