Pipework

Where gases are in use there is usually a requirement for a gas supply and distribution system.

Safety considerations require that the location for the supplied gas source, for example, a gas cylinder(s) or a storage tank, is in a well ventilated area, outdoors and in a secure position, away from any potential hazards, such as sources of ignition. A system of pipework is then provided to distribute the gas to the point(s) of use.

BCGA provide advice on storing gases on our storage of gases webpage.  Typically, where the gas source is provided by a gas cylinder(s) refer to BCGA CP 44, where the gas source is a storage tank, as appropriate, refer to BCGA CP 26, BCGA CP 36 or BCGA CP 46

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

A gas supply and distribution system shall meet specific requirements.  BCGA provide advice in:

  • BCGA CP 4 – for most common gases    
  • BCGA CP 5  – for acetylene       
  • BCGA CP 18 – for specialty gases         

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

Gas users who require to have a gas supply and distribution system installed 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 the relevant legislation and industry codes of practice (as detailed below).

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Pipework installers

Several BCGA member companies offer design services, are pipework installers and provide a range of associated services.

For a list of BCGA members who provide pipework design and installation services, visit our Services Directory page.

Committees

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

Publications

Publications

CP4 Gas supply and distribution systems (excluding acetylene) Revision 5: 2020

15/06/2020 Codes of Practice CP4

Provides the minimum safety practices and principles for the selection and assembly of pressure equipment to control and distribute gases. Details the requirements for the design, installation, testing, commissioning and handover of a pressure system. It sets out the roles and responsibilities of the Designer, the Installer and the User.

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CP5 Gas supply and distribution systems – Acetylene Revision 4: 2023

06/10/2023 Codes of Practice CP5

Provides the minimum safety practices and principles for the selection and assembly of pressure equipment to control and distribute acetylene gas. Details the requirements for the design, installation, testing, commissioning and handover of a pressure system. It sets out the roles and responsibilities of the Designer, the Installer and the User.

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CP18 The safe storage, handling and use of special gases. Revision 3: 2014

01/09/2014 Codes of Practice CP18

Provides technical and safety guidelines and principles for the safe storage and handling of special gases in transportable containers up to the point where product is provided at the required pressure and flow at the junction with the user process.Guidelines on disposal are also given.The safe operation of processes is not included, although many of the principles given in this Code will apply.

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CP39 In-service requirements of pressure equipment (gas storage and gas distribution systems). Revision 2: 2017

01/09/2017 Codes of Practice CP39

Pressure systems require regular examination, inspection and maintenance to ensure the continuing integrity of the equipment and the safety of personnel. This code covers the principles and a risk based methodology to meet these requirements. It includes guidance on Written Schemes of Examination, Ageing Pressure Equipment Assessments and Revalidation of pressure vessels.

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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: