9kg Gas Bottle Dimensions – 4kg Gas Bottle – Small Gas Bottle Sizes

9kg Gas Bottle Dimensions – 4kg Gas Bottle – Small Gas Bottle Sizes

The 9kg gas bottle is a small gas bottle and the 4kg gas bottle is the smallest gas bottle and the most common BBQ gas bottle and camping gas bottle sizes.

9kg gas bottle size comes in the new LCC27 gas bottles version so no LCC27 adaptor is needed. We also have the 4kg gas bottle in an LCC27 gas bottles version.

9kg Gas Bottle Dimensions – 9kg Gas Bottle Size – Small Gas Bottle

The 9kg gas bottle size is the most popular small gas bottle for camping and BBQ gas bottle sizes.  

9kg gas bottle dimensions are approximately 315mm in diameter, 475mm in height and 17.64L capacity of gas cylinder gas in bottle.

9kg gas bottle empty weight (tare weight) is approximately 7.8 to 10.4 kg.

But, how much does a 9kg gas bottle weigh when full with gas cylinder gas in bottle?

9kg gas bottle weight when full of gas cylinder gas in bottle is approximately 16.8 to 19.4 kg.

A 9kg gas bottle size contains 441MJ of energy.

All 9kg gas bottle size specifications are approximate for the small gas bottle.

4kg Gas Bottle Size – 4kg Gas Bottle Dimensions: Camping Gas Bottle & Small Gas Bottles

The 4kg gas bottle are the small gas bottles at SWAP’n’GO, and is chosen as camping gas bottle sizes because of its compact size and light weight, making it easy to transport.

The 4kg gas bottle is the small gas bottle size favoured as both a BBQ gas bottle or camping gas bottle for camping gas stove, camping gas cooktop and camping gas heater applications. 

4kg gas bottle dimensions are approximately height of 345-450mm, a width of 240-265mm and a capacity of 7L of gas cylinder gas in bottle.

4kg gas bottle weight when full of gas cylinder gas is in a range from 8.5kg to 10.6 kg of gas cylinder and contents.

4kg gas bottle empty weight (tare weight) is in a range from of 4.5 to 6.6kg.

A 4kg gas bottle size contains 196MJ of energy.

All 4kg gas bottle size specifications are approximate for the small gas bottle.

Gas Bottle (Gas Cylinder): What is a Gas Bottle?

A gas bottle or gas cylinder is a pressure vessel for storing and transporting liquefied gases and compressed gas at above atmospheric pressure.

A gas bottle (gas cylinder) is typically made from steel or aluminium which is drawn, pressed and/or welded into a cylindrical shape. There is a threaded opening in one end, with or without a neck, for the attachment of a gas valve to control the release of the contained gas.

The gas bottle contains fuel gases like LPG and CNG, industrial gases like acetylene, argon and nitrogen, various scientific gases and medical gases like oxygen and nitrous oxide.

In Australia, the most common BBQ gas bottle sizes are the small gas bottles, 4kg gas bottle (the small gas bottle) and 9kg gas bottle size for BBQ and the 45kg gas bottle sizes for homes.

9kg Gas Bottle Dimensions – 4kg Gas Bottle Sizes & Small Gas Bottle Sizes & Weight Chart

9kg gas bottle dimensions and 4kg gas bottle dimensions and small gas bottle weights shown are approximate. Actual small gas bottle dimensions may vary as 4kg gas bottle and 9kg gas bottle size varies by gas bottle manufacturer. Gas cylinder gas capacity is based on safe filling small gas bottle volumes of 3.7kg and 8.5kg gas cylinder gas in bottle, taking into account possible undersize imported small gas bottle dimensions.

Have questions? See our SWAP’n’GO BBQ GAS FAQs

Small Gas Bottles: 9kg Gas Bottle vs 8.5kg Gas Bottle & 4kg Gas Bottle vs 3.7kg Gas Bottle

The filling of small gas bottles like the nominal 9kg gas bottle as an 8.5 kg gas bottle was a safety initiative of the Australian LPG industry.

The same is true of the 4kg gas bottle being filled with 3.7kg of gas cylinder gas in bottle. But why?

Unfortunately, there are many small gas bottles that are labelled as a 9kg gas bottle or 4kg gas bottle that are actually manufactured undersize, with less than the labelled gas cylinder gas in bottle capacity.

This is a result of the small gas bottle manufacturing and design variances amongst the many manufacturers of small gas bottles that are imported, into Australia, from many countries around the world.

Surprisingly, Australia has no mandatory standard sizing for these small gas bottles as BBQ gas bottle or camping gas bottle sizes, so all of these small gas bottles are approved for sale.

Filling undersized small gas bottles to a full 9kg gas bottle or 4kg gas bottle, thus leaving less than 20% ullage (see image), would create a gas cylinder gas overfill, which would be a major BBQ gas bottle safety issue. Cold burns, fire and even possible explosion could result.

The solution was to take into account the small gas bottle size variations and standardise on 8.5 kg gas cylinder gas in bottle and 3.7kg gas cylinder gas in small gas bottle refills.

This allows for the size variances between small gas bottles and prevents any unsafe BBQ gas bottle overfilling.

To make sure that consumers are fully informed, each small gas bottle is labelled accordingly.