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BS EN 12186:2025 Gas infrastructure — Gas pressure control stations for transmission and distribution — Functional requirements, 2025
- undefined
- European foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and abbreviations [Go to Page]
- 3.1 General
- 3.2 Station
- 3.3 Pressure, design and testing
- 3.4 Pressure control
- 3.5 Smart technologies
- 4 Quality and safety management system
- 5 Environmental interaction [Go to Page]
- 5.1 General requirements
- 5.2 Waste
- 5.3 Greenhouse gas emissions
- 5.4 Adaptation to the effects of climate change [Go to Page]
- 5.4.1 General
- 5.4.2 Design phase
- 5.4.3 Construction, commissioning and decommissioning
- 5.4.4 Operation and maintenance
- 5.5 Mitigation of the impact of earthquakes
- 6 Layout of the gas pressure control station [Go to Page]
- 6.1 General
- 6.2 Layout of the site
- 6.3 Site security
- 7 Housings [Go to Page]
- 7.1 General
- 7.2 Requirements for housings
- 7.3 Underground stations [Go to Page]
- 7.3.1 General
- 7.3.2 Stations in a pit
- 7.3.3 Buried vessel type stations
- 8 Design of the station and its systems [Go to Page]
- 8.1 General
- 8.2 Continuity of supply
- 8.3 Filters, separators
- 8.4 Gas pre-heating system
- 8.5 Noise control [Go to Page]
- 8.5.1 General
- 8.5.2 Environmental acceptance
- 8.5.3 Work area noise
- 8.6 Apertures and vent lines [Go to Page]
- 8.6.1 Apertures in pressure control equipment
- 8.6.2 Vent lines
- 8.7 Connections for purging, recompression or flaring
- 8.8 Hazardous areas
- 8.9 Cathodic protection and electrical isolation system
- 8.10 Lightning protection, electric continuity and earthing
- 8.11 Pressure control system
- 8.12 Flow-rate control system
- 8.13 Pipework system
- 8.14 Welding
- 8.15 Instrumentation pipework
- 8.16 Stress analysis [Go to Page]
- 8.16.1 Design pressure
- 8.16.2 Design factor
- 8.16.3 Supports
- 8.16.4 Flexibility
- 8.16.5 Temperature
- 8.16.6 Gas velocity
- 8.17 Standard pressure equipment strength
- 8.18 Isolating valves
- 8.19 Smart systems and equipment [Go to Page]
- 8.19.1 General
- 8.19.2 Fail safe conditions (safety and continuity of supply)
- 8.20 Electromagnetic compatibility, electrostatic phenomena and personal protection
- 8.21 Information security
- 9 Pressure control requirements [Go to Page]
- 9.1 General
- Table 1 — Relationships between MOP, TOP and MIP [Go to Page]
- 9.2 Pressure regulating system
- 9.3 Pressure safety system [Go to Page]
- 9.3.1 General
- 9.3.2 Operating principles of pressure safety systems
- 9.3.3 Applications
- 9.3.4 Safety shut-off devices
- 9.3.5 Monitors
- 9.3.6 Safety-related electrical/electronic solutions [Go to Page]
- 9.3.6.1 General requirements
- 9.3.6.2 Fail-safe conditions
- 9.3.7 Venting devices
- 9.4 Pressure alarm system
- 9.5 Instrumentation
- 9.6 Bypasses [Go to Page]
- 9.6.1 Bypasses for equalization or testing of components
- 9.6.2 Bypasses of the pressure control system
- 10 Testing [Go to Page]
- 10.1 General
- 10.2 Pressure testing [Go to Page]
- 10.2.1 General
- 10.2.2 Strength test [Go to Page]
- 10.2.2.1 Test pressure
- 10.2.2.2 Installations with MOP greater than 16 bar
- 10.2.2.3 Installations with MOP up to and including 16 bar
- 10.2.3 Tightness test
- 10.3 Reporting
- 11 Commissioning
- 12 Operation and maintenance [Go to Page]
- 12.1 General
- 12.2 Documentation
- 12.3 Maintenance requirements
- 12.4 Training
- 12.5 Work undertaken
- 12.6 Fire fighting
- 12.7 Cyber security
- 13 Decommissioning and disposal [Go to Page]
- 13.1 Decommissioning
- 13.2 Disposal
- Annex A (informative) Glossary
- Annex B (informative) Categories of greenhouse gas emissions in the scope of this document
- Table B.1 — Categories of greenhouse gas emissions in the scope of this document
- Annex C (informative) Mitigation of the impact of earthquakes
- Annex D (informative) Stations in operation - Changing of the type of gas
- Annex E (informative) Significant technical changes from the last edition of this document, EN 12186:2014
- Table E.1 — Significant technical changes between this document and the previous edition
- Bibliography [Go to Page]
