Where gases are in use there is usually a requirement for a gas distribution system to be installed.

Safety considerations require that the main store for the gas, whether this be a storage tank or gas cylinders, is located outside in a secure, well ventilated position, away from any sources of ignition. A system of piping is then provided to distribute the gas to the point(s) of use.

Gas distribution systems must be designed and installed in a manner which complies with relevant legislation, for example, the Pressure Equipment (Safety) Regulations. Refer to BCGA CP 4.

Before putting a gas distribution system into operation all necessary documentation is to be in place and safe systems of work are to be implemented. The gas distribution system is to have an examination, inspection and maintenance regime in accordance with relevant legislation, for example, the Provision and Use of Work Equipment Regulations and the Pressure Systems Safety Regulations. Refer to BCGA CP 39.

Gas users who need to have a gas distribution system installed on their premises are strongly recommended to work with a Designer who has relevant design experience and to select an Installer experienced in installing pipework for industrial, medical and food gas applications, both of whom are fully conversant with this legislation and industry codes of practice (as detailed below).


Within BCGA pipework is the responsibility of Technical Sub-Committee (TSC) 1. Members can access information on TSC1 via the ‘Members' area.


Several BCGA publications provide advice on pipework within their specialist subject areas. All BCGA publications are accessible via the ‘Publications' page. The following publications provide specific advice on pipework:

  • BCGA CP 4 Gas supply and distribution systems (excluding acetylene).
  • BCGA CP 5 - The design and construction of manifolds using acetylene gas from 1.5 bar to a maximum working pressure of 17 bar.
  • BCGA CP 6 - The safe distribution of acetylene in the pressure range 0 to 1.5 bar.
  • BCGA CP 39 - In-service requirements of pressure equipment (gas storage and gas distribution systems).

Pipework installers

Several BCGA member companies offer design services, are pipework installers and/or provide a range of associated services. See the full list here.