Explorative history of fuel gas connectors development and related regulatory standards

Fuel gas connectors (FGC) are indispensable in modern building constructions, especially where gas is the primary source of energy for the building. FGC supply natural gas and liquefied petroleum gas (LPG) to appliances in buildings. There are potentially associated hazards with the use of FGC, triggering controversies over the safer choice of material. Safety codes have been established since 1911 to mitigate the potential risks associated with the use of FGC, this paper discusses the development of the codes. These codes are periodically revised to ensure the safety and reliability of all gas powered appliances in households. Subsequent code edition builds on the next, through consensus-based modifications that represent the progressive needs in this area and the most recent information on FGC safety. It was observed that the different modifications in safety requirements for the FGC have largely improved the reliability potentials of the piping systems over the years based on data collection and research. The newer flexible materials offer ease of use and are also found to be relatively safer than the old rigid pipes. Continuous safety assessment of these materials is required to mitigate risks and ensure adequate protection of life, property and the environment.