Gas bottles, also known as compressed gas cylinders or tanks are cylindrical metal items, fitted with a pressure/release valve at one end. These are often made of carbon steel, although stainless steel and nickel/copper or aluminium alloy cylinders are available too.
Various types of gas bottle are used in industry for a range of different purposes. Some are labelled to show what type of gas they are, while others are not.
The main difference between a propane cylinder and a butane cylinder is the amount of gas that can be stored in each. For instance, a 13kg propane cylinder is capable of holding up to 3.5 times the volume of a 13kg butane cylinder, so it’s recommended that you buy a larger butane bottle if you plan on using your gas BBQ regularly.
Patio gas bottles are small, portable cylinders that are filled with propane gas and designed to be connected to your BBQ via a regulator (more on this later). They come in different sizes depending on what you need.
They are typically between 5kg and 13kg in size, but larger bottles can be found if you plan to use your BBQ more than once. The advantage of these smaller cylinders is that they can be placed underneath the BBQ or within its storage area, rather than being connected to the appliance directly, so they don’t take up as much space on your deck or garden.
When using a gas bottle, it’s important to make sure that you don’t place the cylinder in an incorrect position which could cause it to break or explode. For example, if you’re using a propane cylinder that is equipped with an Overfill Prevention Device (OPD), make sure to only fill it vertically upright.
It’s also worth noting that if you have a cylinder that is not OPD-equipped, it’s important to only fill it with vapor. This is because liquid propane will flow through the service valve and into the bottle if it’s put in an incorrect position or if it’s moved from the upright position.
The same applies to acetylene cylinders. They’re often filled with an inert packing material and are then filled with a solvent that dissolves when the cylinder is opened. This works as a way of avoiding the explosion risks associated with acetylene when a cylinder is pressurized above 200 kPa or liquified.
If you’re unsure about what type of gas you need, it’s best to consult with your local cylinder supplier. They should be able to help you choose the right cylinder for your needs and advise you on how best to store and dispose of your gas cylinders.
A good rule of thumb is to store your cylinders in an airtight container that is breathable and waterproof. Ideally, the cylinder should be stored in a cool, dry area and should never be exposed to extreme temperatures or sunlight.
When you are preparing to dispose of your cylinders, contact your local government office for more information on the waste disposal processes and regulations in your jurisdiction. The local authorities will have a list of facilities that handle commercial hazardous waste and will be able to direct you to the proper facility in your area.