Air and Gas Industries have been manufacturing Liquefied Petroleum Gas (LP Gas) Road Tankers since opening in 1974.
Originally, LP Gas Road Tankers had a fairly simple design and were made from carbon steel boiler plate (a thick and heavy material used for high pressure steel tanks).
Since the 1970s, Road Tankers have evolved to incorporate more electro-pneumatic automation of operating systems, leading to a more complex design with an increasing focus on safety.
This material has since been replaced by quenched and tempered steel, which reduced the thickness of the vessel from 16-20mm down to approximately 10mm. This decreased the weight of the vessel, reducing the tare of the vehicle and allowing for more gas to be transported.