EN 1594:2024
(Main)Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar.
NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583.
This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies:
- onshore:
- from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises;
- pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc.
- high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C.
- steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings.
- gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline.
Gas infrastructures covered by this document begin after the gas producer's metering station.
NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations.
A schematic representation of pipelines for gas infrastructure is given in Figure 1.
This document can also be applied to the repurposing of existing pipelines.
[Figure 1 - Schematic representation of pipelines for gas supply over 16 bar]
This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries.
This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737.
CEN/TR 13737 gives:
- clarification of all legislations/regulations applicable in a member state;
- if appropriate, more restrictive national requirements;
- a national contact point for the latest information.
Gasinfrastruktur - Rohrleitungen für einen maximal zulässigen Betriebsdruck über 16 bar - Funktionale Anforderungen
Dieses Dokument beschreibt die funktionalen Anforderungen an Leitungen mit einem maximal zulässigen Betriebsdruck von über 16 bar. Dieses Dokument legt darüber hinaus die mechanischen Anforderungen an Rohrleitungen in Stationen mit einem maximal zulässigen Betriebsdruck von mehr als 16 bar fest.
ANMERKUNG 1 Die Anforderungen an das Schweißen sind in EN 12732 beschrieben. Die funktionalen Anforderungen für Stationen sind in EN 1776, EN 1918 5, EN 12186 und EN 12583 beschrieben.
Dieses Dokument gilt für den Transport von Gas über landverlegte Hochdruck-Stahlrohrleitungen, für die Folgendes gilt:
- landverlegt:
-- ab der Stelle, an der die Rohrleitungen zuerst die üblicherweise als Grenze (Battery Limit) zwischen auflandig (onshore) und ablandig (offshore) anerkannt sind, und die sich nicht innerhalb eines Gewerbe- oder Werksgeländes als integraler Bestandteil des industriellen Prozesses auf diesem Gelände befinden, ausschließlich der Versorgung solcher Grundstücke dienen und kein wesentlicher Bestandteil der Anlagen für Betriebsabläufe auf diesem Gelände sind;
-- auf dem Festland ihren Ausgang nehmende Leitungssysteme sowie für Teile von Leitungssystemen auf dem Festland, die nachfolgend durch Fjorde, Seen usw. verlaufen.
- Hochdruck: Gas mit einem maximal zulässigen Betriebsdruck von über 16 bar und einer Auslegungstemperatur zwischen −40 °C und 120 °C.
- Infrastruktur für Stahlrohrleitungen: Infrastruktur, die aus Rohrleitungskomponenten wie Rohren, Ventilen, Kupplungen und anderen Einrichtungen besteht und auf Komponenten aus unlegiertem oder niedrig legiertem Kohlenstoffstahl beschränkt ist, die durch Schweißverbindungen, Flanschverbindungen oder mechanische Kupplungen verbunden sind.
- Gas: nicht korrosives Erdgas, Biomethangas, Wasserstoffgas und Gemische dieser Gase, wenn die technische Bewertung ergeben hat, dass die Betriebsbedingungen oder die Bestandteile oder Eigenschaften des Gases den sicheren Betrieb der Rohrleitung nicht beeinträchtigen.
Die Gasinfrastruktur, für die dieses Dokument gilt, beginnt am Ausgang der Messstation des Gasproduzenten.
[…]
Infrastructures gazières - Canalisation pour pression maximale de service supérieure à 16 bar - Prescriptions fonctionnelles
Ce document décrit les exigences fonctionnelles des canalisations pour une pression de service maximale supérieure à 16 bar. Ce document décrit également les exigences mécaniques des canalisations des stations dont la pression maximale de service est supérieure à 16 bar.
NOTE 1 Les exigences de soudage sont décrites dans l'EN 12732. Les exigences fonctionnelles pour les stations sont données dans l'EN 1776, l'EN 1918-5, l'EN 12186 et l'EN 12583.
Le présent document s'applique au transport de gaz via des infrastructures terrestres de canalisations en acier à haute pression, lorsque les conditions suivantes s'appliquent :
- à terre :
- à partir du point où la canalisation traverse pour la première fois ce qui est normalement accepté comme limite de batterie entre onshore et offshore, et qui n'est pas situé dans des locaux commerciaux ou industriels en tant que partie intégrante du processus industriel sur ces locaux, à l'exception des canalisations et des installations alimentant ces locaux;
- système de canalisations avec un point de départ à terre, également lorsque des parties du système de canalisations sur le continent traversent ensuite des fjords, des lacs, etc.
- haute pression : gaz avec une pression de service maximale supérieure à 16 bars et une température de conception comprise entre −40 °C et 120 °C.
- infrastructure de canalisation en acier : infrastructure composée de composants de canalisations, tels que tuyaux, vannes, raccords et autres équipements, limités aux composants en acier au carbone non allié ou faiblement allié et reliés par des soudures, des brides ou des raccords mécaniques.
- gaz : gaz naturel non corrosif, biométhane gazeux, hydrogène gazeux et mélanges de ces gaz lorsque l'évaluation technique a assuré que les conditions de fonctionnement ou les constituants ou propriétés du gaz n'affectent pas la sécurité d'exploitation de la canalisation.
Les infrastructures gazières visées par ce document commencent après le poste de comptage du producteur de gaz.
NOTE 2 La démarcation fonctionnelle du système de canalisations dans une zone d'usine se situe généralement directement après la première vanne d'isolement de l'installation, mais peut différer dans des situations particulières.
Une représentation schématique des canalisations pour les infrastructures gazières est donnée à la figure 1.
Ce document peut également s'appliquer à la reconversion de canalisations existantes.
[Figure 1 - Représentation schématique des canalisations de transport de gaz au-dessus de 16 bar]
Le présent document spécifie les principes de base communs pour les systèmes d'alimentation en gaz. Il convient que les utilisateurs de la présente norme gardent à l'esprit l'existence éventuelle, dans les pays membres du CEN, de codes de pratique et/ou normes nationales.
Le présent document est destiné à être appliqué conjointement avec ces normes nationales et/ou codes de pratique qui détaillent les principes précités.
En cas de conflits liés à des exigences législatives/réglementaires plus restrictives que les prescriptions du présent document, la législation/réglementation nationale doit avoir la priorité comme précisé dans le CEN/TR 13737.
Le CEN/TR 13737 contient :
- la clarification de la législation/réglementation pertinente applicable dans un pays ;
- si appropriée, les exigences nationales plus restrictives ;
- le contact national pour les dernières informations.
Infrastruktura za plin - Cevovodni sistemi za najvišji delovni tlak nad 16 bar - Funkcionalne zahteve
Ta evropski standard se uporablja za transport plina prek kopenskih visokotlačnih jeklenih plinovodnih infrastruktur, pri čemer velja naslednje:
– kopensko: od točke, kjer cevovod prvič prečka točko, ki se običajno šteje kot razmejitev med kopenskim in morskim delom cevovoda, pri čemer cevovod ni nameščen znotraj poslovnih ali industrijskih območij kot sestavni del industrijskega postopka na teh območjih, razen cevovodov in opreme za dostavo plina na ta območja. Ta evropski standard se uporablja za cevovodne sisteme z izhodiščem na kopnem, tudi kadar cevovodni sistem na kopnem prečka fjorde, jezera itd.
– visokotlačno: plin z najvišjim delovnim tlakom nad 16 bar ter konstrukcijsko temperaturo med −40 °C in 120 °C;
– jeklena plinovodna infrastruktura: jeklena infrastruktura za plin, ki jo sestavljajo komponente cevovoda, kot so cevi, ventili, spojke in druga oprema. Na področje uporabe tega dokumenta spadajo komponente cevovoda, izdelane iz nelegiranega ali malo legiranega ogljikovega jekla, ki so zvarjene oziroma združene s prirobnicami ali z mehanskimi spojkami.
– plin: nestrupen in nekoroziven zemeljski plin, biometan, vodik in mešanice teh plinov, pri katerih je bilo s tehničnim vrednotenjem zagotovljeno, da delovni pogoji, sestavine oziroma lastnosti plina ne vplivajo na varno delovanje cevovodnega sistema.
Infrastrukture za plin, ki jih zajema ta evropski standard, se začnejo za merilnimi postajami proizvajalcev plina. Funkcionalna razmejitev cevovodnega sistema na območju obrata se določi od primera do primera. To je običajno neposredno po prvem ločilnem ventilu merilne napeljave.
Ta evropski standard opisuje tudi mehanske zahteve za cevovode v plinskih postajah z najvišjim delovnim tlakom nad 16 barov.
Zahteve za varjenje so opisane v standardu EN 12732. Funkcionalne zahteve za postaje so podane v standardih EN 1776, EN 1918-5, EN 12186 in EN 12583. Zahteve za varno upravljanje in celostno obvladovanje cevovodnega sistema so podane v standardu EN 17649.
Ta evropski standard določa splošna osnovna načela za infrastrukture za plin. Uporabniki tega evropskega standarda naj se zavedajo, da lahko v državah članicah CEN obstajajo podrobnejši nacionalni standardi in kodeksi ravnanja.
Ta evropski standard je namenjen uporabi v povezavi s temi nacionalnimi standardi in/ali kodeksi ravnanja, ki določajo zgoraj navedena načela.
Ta evropski standard se ne uporablja za obstoječe cevovodne sisteme, ki so bili v uporabi pred objavo tega evropskega standarda, ali za spremembe obstoječih cevovodnih sistemov, razen za prilagoditev cevovodnih sistemov za uporabo vodika in njegovih mešanic.
Kadar so strožje zahteve v nacionalni zakonodaji/predpisu v nasprotju z zahtevami iz tega evropskega standarda, ima prednost nacionalna zakonodaja/predpis, kot je navedeno v standardu CEN/TR 13737 (vsi deli).
Ta evropski standard se sklicuje na ustrezne evropske in druge priznane standarde za izdelke, ki se uporabljajo za izdelavo in delovanje infrastruktur za plin.
General Information
- Status
- Published
- Publication Date
- 05-Mar-2024
- Technical Committee
- CEN/TC 234 - Gas infrastructure
- Drafting Committee
- CEN/TC 234/WG 3 - Gas Transportation
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 06-Mar-2024
- Due Date
- 29-Jun-2023
- Completion Date
- 06-Mar-2024
Relations
- Effective Date
- 18-Jan-2023
- Effective Date
- 31-Jul-2024
Overview
EN 1594:2024 - Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements - is a CEN standard that sets out functional and mechanical requirements for onshore high‑pressure steel pipeline infrastructure. It applies to pipelines with a maximum operating pressure over 16 bar and a design temperature range of −40 °C to 120 °C, using unalloyed or low‑alloy carbon steel joined by welds, flanges or mechanical couplings. The scope covers transport of non‑corrosive natural gas, biomethane, hydrogen and their mixtures (subject to technical evaluation), pipeline repurposing, routing across lakes/fjords and systems that start onshore. The pipeline system normally begins after the gas producer’s metering station.
Key topics
EN 1594:2024 organizes functional requirements and practical engineering topics relevant to high‑pressure gas pipelines:
- Design principles and basis of design - wall thickness, stress/strain analysis (elastic and limit‑state approaches), and design reports
- Pressure safety and operational limits - pressure levels, normal operation, and device requirements (including guidance for pipelines with specific DP and hoop stress thresholds)
- Materials and components - requirements for base material, weldability, pipes, fittings, valves and inspection records for carbon steels
- Construction and execution - site marking, trenching, welding and weld inspection, lowering, backfill, crossings (trenchless, HDD), casings and final inspection
- Corrosion protection - external coatings and cathodic protection principles for long‑term integrity
- Station pipework and interfaces - mechanical requirements for station pipework, layout and interaction with onshore pipeline sections
- Operational considerations - pigging suitability, venting/recompression/flaring arrangements, valve spacing and land/geotechnical studies
- Quality, safety and environment - quality management systems, routing surveys and environmental impact assessment
Applications and users
This standard is intended for practical use in:
- Pipeline designers and engineering consultants preparing high‑pressure pipeline designs
- Asset owners and operators responsible for construction, commissioning and operation of onshore gas pipelines (>16 bar)
- Construction contractors and welding/fabrication teams working on steel pipeline systems
- Regulators, inspection bodies and maintenance teams verifying compliance and integrity
Typical applications include new pipeline design and construction, repurposing existing steel pipelines, station pipework design and cross‑sectoral planning for high‑pressure gas transport.
Related standards
- EN 12732 (welding requirements)
- Functional station standards: EN 1776, EN 1918‑5, EN 12186, EN 12583
- CEN/TR 13737 clarifies national legislation and precedence of more restrictive national requirements.
EN 1594:2024 provides the common, practical framework for safe, reliable onshore high‑pressure pipeline infrastructure and should be applied alongside applicable national codes and regulations.
Frequently Asked Questions
EN 1594:2024 is a standard published by the European Committee for Standardization (CEN). Its full title is "Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements". This standard covers: This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar. NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583. This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies: - onshore: - from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises; - pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc. - high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C. - steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings. - gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline. Gas infrastructures covered by this document begin after the gas producer's metering station. NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations. A schematic representation of pipelines for gas infrastructure is given in Figure 1. This document can also be applied to the repurposing of existing pipelines. [Figure 1 - Schematic representation of pipelines for gas supply over 16 bar] This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries. This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737. CEN/TR 13737 gives: - clarification of all legislations/regulations applicable in a member state; - if appropriate, more restrictive national requirements; - a national contact point for the latest information.
This document describes the functional requirements for pipelines for maximum operating pressure over 16 bar. This document also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar. NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in EN 1776, EN 1918-5, EN 12186, and EN 12583. This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures, where the following applies: - onshore: - from the point where the pipeline first crosses what is normally accepted as battery limit between onshore and offshore, and that is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises; - pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes, etc. - high pressure: gas with a maximum operating pressure over 16 bar and a design temperature between −40 °C and 120 °C. - steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves, couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon steel and joined by welds, flanges or mechanical couplings. - gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where technical evaluation has ensured that operating conditions or constituents or properties of the gas do not affect the safe operation of the pipeline. Gas infrastructures covered by this document begin after the gas producer's metering station. NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually located on an isolating valve of the installation, but can differ in particular situations. A schematic representation of pipelines for gas infrastructure is given in Figure 1. This document can also be applied to the repurposing of existing pipelines. [Figure 1 - Schematic representation of pipelines for gas supply over 16 bar] This document specifies common basic principles for gas infrastructure. Users of this standard are expected to be aware that more detailed national standards and/or code of practice can exist in the CEN member countries. This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737. CEN/TR 13737 gives: - clarification of all legislations/regulations applicable in a member state; - if appropriate, more restrictive national requirements; - a national contact point for the latest information.
EN 1594:2024 is classified under the following ICS (International Classification for Standards) categories: 23.040.01 - Pipeline components and pipelines in general; 75.200 - Petroleum products and natural gas handling equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1594:2024 has the following relationships with other standards: It is inter standard links to EN 1594:2013, EN 1594:2024/prA1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1594:2024 is associated with the following European legislation: Standardization Mandates: M/017, M/617. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 1594:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Nadomešča:
SIST EN 1594:2013
Infrastruktura za plin - Cevovodni sistemi za najvišji delovni tlak nad 16 bar -
Funkcionalne zahteve
Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional
requirements
Gasinfrastruktur - Rohrleitungen für einen maximal zulässigen Betriebsdruck über 16 bar
- Funktionale Anforderungen
Infrastructures gazières - Canalisation pour pression maximale de service supérieure à
16 bar - Prescriptions fonctionnelles
Ta slovenski standard je istoveten z: EN 1594:2024
ICS:
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1594
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2024
EUROPÄISCHE NORM
ICS 23.040.01; 75.200 Supersedes EN 1594:2013
English Version
Gas infrastructure - Pipelines for maximum operating
pressure over 16 bar - Functional requirements
Infrastructures gazières - Canalisation pour pression Gasinfrastruktur - Rohrleitungen für einen maximal
maximale de service supérieure à 16 bar - zulässigen Betriebsdruck über 16 bar - Funktionale
Prescriptions fonctionnelles Anforderungen
This European Standard was approved by CEN on 1 October 2023.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1594:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 6
Introduction . 8
1 Scope . 9
2 Normative references . 11
3 Terms and definitions . 13
4 Quality and management systems . 18
5 Safety and the environment . 19
5.1 General. 19
5.2 Appropriate safety measures . 19
5.3 Routing considerations . 20
5.3.1 General. 20
5.3.2 Surveys. 20
5.3.3 Environmental impact . 20
5.3.4 Ground conditions . 21
5.4 Line valve spacing . 21
6 Pressure safety . 21
6.1 Pressure levels . 21
6.2 Normal operation . 22
6.3 Requirements for installation of pressure safety devices . 22
6.4 Pipeline with DP equal to or less than 40 bar and hoop stress ≤ 0,45 R . 23
t0,5
6.5 Pipeline with DP equal to or less than 24 bar and hoop stress ≤ 0,30 R . 23
t0,5
7 Design . 23
7.1 General. 23
7.1.1 Design principles . 23
7.1.2 Basis of design . 23
7.2 Wall thickness determination . 24
7.2.1 Straight pipe . 24
7.2.2 Bends and elbows . 25
7.3 Additional design requirements . 25
7.3.1 Forces . 25
7.3.2 Soil engineering data required . 26
7.3.3 Structural models for pipeline sections. 26
7.4 Analysis of stress and strain . 27
7.4.1 Elastic and extended elastic design . 27
7.4.2 Limit state design . 28
7.5 Design report . 29
7.6 Land management and geotechnical studies . 30
7.7 Depth of cover . 30
7.8 Casing pipes . 30
7.9 Station design . 31
7.9.1 Layout . 31
7.9.2 Components . 32
7.9.3 Interaction with onshore pipeline section . 32
7.9.4 Station pipework . 33
7.10 Pipeline components . 33
7.11 Pigging suitability . 33
7.12 Arrangements for venting, recompression and flaring . 33
7.13 Corrosion protection . 34
7.13.1 General . 34
7.13.2 External coating . 34
7.13.3 Cathodic protection . 35
7.14 Grid connections . 35
8 Materials and components . 36
8.1 General . 36
8.1.1 Base material . 36
8.1.2 Manufacturing requirements . 36
8.1.3 Manufacturing procedure. 36
8.1.4 Weldability . 36
8.1.5 Mechanical properties . 37
8.1.6 Inspection documents . 38
8.1.7 Other steel types or grades . 38
8.1.8 Records . 38
8.2 Pipes . 38
8.3 Fittings . 39
8.3.1 General . 39
8.3.2 Manufacturing. 39
8.4 Flanged connections . 39
8.5 Insulating connections . 39
8.5.1 Type test . 39
8.5.2 Strength test . 39
8.5.3 Electrical test . 40
8.5.4 External tightness test . 40
8.6 Valves . 40
8.7 External and internal coatings . 40
8.8 Welding end preparation . 40
9 Construction . 40
9.1 General . 40
9.2 Execution of work . 40
9.2.1 General . 40
9.2.2 Marking out the site . 40
9.2.3 Initial site inspections . 41
9.2.4 Working strip . 41
9.2.5 Separation of topsoil . 41
9.2.6 Trenches . 41
9.2.7 Crossing and proximity of buried structures (cables and pipes) . 42
9.2.8 Handling and stringing . 42
9.2.9 Bends . 43
9.2.10 Welding and weld examination . 43
9.2.11 External coating . 43
9.2.12 Lowering into the trench . 46
9.2.13 Ballasting and anchoring . 46
9.2.14 Tie-ins . 46
9.2.15 Backfill . 46
9.2.16 Reinstatement . 47
9.2.17 Markings . 47
9.2.18 Final site inspection with owners and users . 47
9.3 Special crossings . 47
9.3.1 General. 47
9.3.2 Open-trench road or path crossings . 47
9.3.3 Trenchless crossings . 48
9.3.4 Requirements for casings . 51
9.3.5 Open trench major water crossings . 51
9.3.6 Horizontal directional drilling . 51
9.4 Cleaning . 52
9.5 Testing . 52
9.5.1 General. 52
9.5.2 Test preparation . 53
9.5.3 Strength test . 53
9.5.4 Tightness test . 53
9.5.5 Pre-testing . 54
9.5.6 Dewatering . 54
9.5.7 Golden welds . 54
9.6 Acceptance. 54
9.6.1 As-built documents . 54
9.6.2 Pre-commissioning . 54
9.6.3 Handover and documentation . 55
10 Operation and maintenance . 55
10.1 General. 55
10.1.1 Policy . 55
10.1.2 Safety and environment . 55
10.2 Organization . 55
10.3 Operating and maintenance instructions . 56
10.4 Emergency plan . 57
10.5 Records and documentation . 57
10.6 Commissioning . 57
10.7 Decommissioning . 58
10.8 Recommissioning . 58
10.9 Maintenance, modification, and repair . 58
10.9.1 General. 58
10.9.2 Pipeline surveillance, inspection and monitoring . 58
10.9.3 Execution of repairs and modifications . 59
10.9.4 Work involving cutting of the pipeline . 59
10.9.5 Work on in-service pipelines . 59
10.9.6 Repairs after emergency . 60
10.9.7 Other and special maintenance activities . 60
10.10 Introduction of hydrogen in existing natural gas pipelines . 61
10.11 Abandonment and removal . 61
Annex A (normative) Requirements for fracture arrest of line pipe . 62
A.1 General. 62
A.2 CVN impact test . 63
A.3 Drop weight tear test . 65
A.4 Test pieces, method, and frequency for CVN and DWT tests . 65
Annex B (informative) Hydrogen gas pipelines . 66
B.1 General. 66
B.2 New pipelines . 66
B.3 Existing pipelines . 66
B.4 Other considerations . 67
Bibliography . 68
European foreword
This document (EN 1594:2024) has been prepared by Technical Committee CEN/TC 234 “Gas
infrastructure”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2024, and conflicting national standards shall
be withdrawn at the latest by September 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1594:2013.
The main changes between this document and the previous edition EN 1594:2013 are as follows:
— addition of supplements with respect to available technologies, like aspects of pipeline inspection,
corrosion protection, aspects of gases with low ignition energy considered such as hydrogen;
— restructuring and rephrasing of scope to improve understanding (Clause 1);
— update of references to other documents (Clause 2 and Bibliography);
— revision of terms and definitions including clarification of substance ‘gas’ (Clause 3).
— addition of arrangements for venting, recompression and flaring (Clause 7);
— adjustment of minimum impact energy values to appropriate safety values (Clause 8);
— removal of all annexes, because they were outdated and considered covered in other European
standards;
— addition of new normative annex with requirements for fracture arrest of line pipe (Annex A),
adopted from EN ISO 3183:2012 as they were taken out in the current edition of EN ISO 3183
(published in 2019);
— addition of new informative with recommendations related to hydrogen pipelines (Annex B).
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
There is a complete suite of functional standards prepared by CEN/TC 234 “Gas infrastructure” to cover
all parts of the gas infrastructure from the input of gas to the transmission system up to the inlet
connection of the gas appliances, whether for domestic, commercial or industrial purposes.
Conformance to this document ensures the interoperability, safety and reliability requirements of
pipeline systems.
Directive 2009/73/EC concerning common rules for the internal market in natural gas and the related
Regulation (EC) No 715/2009 on conditions for access to the natural gas transmission networks also aim
at technical safety (security) including technical reliability of the European gas system. These aspects and
Directive (EU) 2018/2001 on the promotion of the use of energy from renewable sources are also in the
scope of CEN/TC 234 standardization. In this respect, CEN/TC 234 evaluated the indicated EU legislation
and amended this document accordingly, where required and appropriate.
CEN/TC 234 will continue its work updating this document to the latest developments at regular
intervals.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
This document describes the general functional requirements for gas supply through pipe systems and
covers the pressure range greater than 16 bar maximum operating pressure for steel systems. It gives
normative and informative references for safe and secure gas infrastructure. It applies to their design,
construction, operation and the related aspects of safety, environment and public health, all in order to
provide a safe and secure supply of gas.
The requirements of this document are based on safe gas engineering practice under conditions normally
encountered in the gas industry. Requirements for all unusual conditions cannot be specifically provided
for, nor are all engineering and construction details prescribed.
Existing industrial safety regulations applying to work areas, safety devices and safe work practices are
not intended to be supplanted by this document.
Managers with responsibilities for the design, construction and operation of gas infrastructure will have
regard to the guidance given in this document and to other relevant standards. It is the responsibility of
these managers and engineers to apply these functional requirements, supplemented with other proven
good practice to the particular circumstances of all gas infrastructures.
The designer, constructor or operator of pipeline systems is cautioned that this document is not a design
handbook or code of practice. Additional national or company standards describing the details are
needed. These detailed standards should be in line with the basic principles of this document.
In preparing this document it was recognized that the suite of relevant European standards is incomplete.
Where appropriate, reference is made to international, national or other standards until relevant
European standards are available.
In preparing this document, a basic understanding of gas supply by the user has been assumed. Gas
infrastructure is complex and the importance on safety of their construction and use has led to the
development of very detailed codes of practice and operating manuals in member countries. These
detailed statements embrace recognized standards of gas engineering and specific requirements imposed
by legal structures of these member countries.
1 Scope
This document describes the functional requirements for pipelines for maximum operating pressure over
16 bar. This document also describes the mechanical requirements for pipework in stations with a
maximum operating pressure greater than 16 bar.
NOTE 1 Welding requirements are described in EN 12732. Functional requirements for stations are given in
EN 1776, EN 1918-5, EN 12186, and EN 12583.
This document is applicable for transporting gas via onshore high-pressure steel pipeline infrastructures,
where the following applies:
— onshore:
— from the point where the pipeline first crosses what is normally accepted as battery limit
between onshore and offshore, and that is not located within commercial or industrial premises
as an integral part of the industrial process on these premises except for any pipelines and
facilities supplying such premises;
— pipeline system with a starting point onshore, also when parts of the pipeline system on the
mainland subsequently cross fjords, lakes, etc.;
— high pressure: gas with a maximum operating pressure over 16 bar and a design temperature
between −40 °C and 120 °C;
— steel pipeline infrastructure: infrastructure consisting of pipeline components, such as pipes, valves,
couplings and other equipment, restricted to components made of unalloyed or low alloyed carbon
steel and joined by welds, flanges or mechanical couplings;
— gas: non-corrosive natural gas, biomethane gas, hydrogen gas and mixtures of these gases where
technical evaluation has ensured that operating conditions or constituents or properties of the gas
do not affect the safe operation of the pipeline.
Gas infrastructures covered by this document begin after the gas producer's metering station.
NOTE 2 The functional demarcation of the pipeline system is usually directly after an isolating valve of the
installation, but can differ in particular situations. The functional demarcation of the pipeline system is usually
located on an isolating valve of the installation, but can differ in particular situations.
A schematic representation of pipelines for gas infrastructure is given in Figure 1.
This document can also be applied to the repurposing of existing pipelines.
Key
Symbols Stations
pipelines covered by this document 1 P – well, production
pipelines not covered by this document 2 T – treatment
pressure regulation 3 D – odorization
pressure safety system 4 S 1 – gas receiving
metering, gas analysis and sampling 5 S 2 – valve station
system
compression 6 S 3 – delivery station
valve 7 S 4 – compressor station
isolation device 8 S 5 – other supply (e.g. for blending)
9 S 6 – export or import (e.g. storage and
neighbouring network)
10 S 7 – pressure regulating
11 S 8 – domestic distribution
12 S 9 – industrial distribution
13 S 10 – storage
Figure 1 — Schematic representation of pipelines for gas supply over 16 bar
This document specifies common basic principles for gas infrastructure. Users of this standard are
expected to be aware that more detailed national standards and/or code of practice can exist in the CEN
member countries.
This document is intended to be applied in association with these national standards and/or codes of
practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with
the requirements of this standard, the national legislation/regulation takes precedence as illustrated in
CEN/TR 13737.
CEN/TR 13737 gives:
— clarification of all legislations/regulations applicable in a member state;
— if appropriate, more restrictive national requirements;
— a national contact point for the latest information.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1092-1, Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, PN
designated — Part 1: Steel flanges
EN 1514 (all parts), Flanges and their joints — Dimensions of gaskets for PN-designated flanges
EN 1515-2, Flanges and their joints — Bolting — Part 2: Classification of bolt materials for steel flanges, PN
designated
EN 1515-3, Flanges and their joints — Bolting — Part 3: Classification of bolt materials for steel flanges,
class designated
EN 1515-4, Flanges and their joints — Bolting — Part 4: Selection of bolting for equipment subject to the
Pressure Equipment Directive 2014/68/EU
EN 1759-1, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, Class
designated — Part 1: Steel flanges, NPS 1/2 to 24
EN 1998-4, Eurocode 8 — Design of structures for earthquake resistance — Part 4: Silos, tanks and pipelines
EN 10204, Metallic products — Types of inspection documents
EN 10289, Steel tubes and fittings for onshore and offshore pipelines — External liquid applied epoxy and
epoxy-modified coatings
EN 10290, Steel tubes and fittings for onshore and offshore pipelines — External liquid applied
polyurethane and polyurethane-modified coatings
EN 12186, Gas infrastructure — Gas pressure regulating stations for transmission and distribution —
Functional requirements
EN 12327, Gas infrastructure — Pressure testing, commissioning and decommissioning procedures —
Functional requirements
EN 12560-1, Flanges and their joints — Gaskets for Class-designated flanges — Part 1: Non-metallic flat
gaskets with or without inserts
EN 12560-2, Flanges and their joints — Dimensions of gaskets for Class-designated flanges — Part 2: Spiral
wound gaskets for use with steel flanges
EN 12560-3, Flanges and their joints — Gaskets for Class-designated flanges — Part 3: Non-metallic PTFE
envelope gaskets
EN 12560-4, Flanges and their joints — Gaskets for Class-designated flanges — Part 4: Corrugated, flat or
grooved metallic and filled metallic gaskets for use with steel flanges
EN 12560-5, Flanges and their joints — Gaskets for Class-designated flanges — Part 5: Metallic ring joint
gaskets for use with steel flanges
EN 12560-6, Flanges and their joints — Gaskets for Class-designated flanges — Part 6: Covered serrated
metal gaskets for use with steel flanges
EN 12583, Gas Infrastructure — Compressor stations — Functional requirements
EN 12732, Gas infrastructure — Welding steel pipework — Functional requirements
EN 14141, Valves for natural gas transportation in pipelines — Performance requirements and tests
EN ISO 3183:2019, Petroleum and natural gas industries — Steel pipe for pipeline transportation systems
(ISO 3183:2019)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 12944-1, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 1: General introduction (ISO 12944-1)
EN ISO 12944-2, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 2: Classification of environments (ISO 12944-2)
EN ISO 12944-3, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 3: Design considerations (ISO 12944-3)
EN ISO 12944-4, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 4: Types of surface and surface preparation (ISO 12944-4)
EN ISO 12944-5, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 5: Protective paint systems (ISO 12944-5)
EN ISO 12944-6, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 6: Laboratory performance test methods (ISO 12944-6)
EN ISO 12944-7, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 7: Execution and supervision of paint work (ISO 12944-7)
EN ISO 12944-8, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 8: Development of specifications for new work and maintenance (ISO 12944-8)
EN ISO 15741, Paints and varnishes — Friction-reduction coatings for the interior of on- and offshore steel
pipelines for non-corrosive gases (ISO 15741)
EN ISO 15589-1, Petroleum, petrochemical and natural gas industries — Cathodic protection of pipeline
systems — Part 1: On-land pipelines (ISO 15589-1)
EN ISO 21809-1, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)
(ISO 21809-1)
EN ISO 21809-2, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 2: Single layer fusion-bonded epoxy coatings
(ISO 21809-2)
EN ISO 21809-3, Petroleum and natural gas industries — External coatings for buried or submerged
pipelines used in pipeline transportation systems — Part 3: Field joint coatings (ISO 21809-3)
ASME B16.20, Metallic gaskets for pipe flanges
ASME B16.47, Large Diameter Steel Flanges: NPS 26 through NPS 60, Metric/Inch Standard
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
abandonment
permanent decommissioning where a pipeline or a pipeline section is physically isolated from the gas
pipeline system
3.2
battery limit
defined boundary between two areas of responsibility, which can be physical or represented by a map
coordinate
Note 1 to entry: Physical boundary can be an isolating valve, a flange on a pipe or a geographic point on a pipeline.
3.3
casing
protection by means of a construction around the pipeline in order to prevent external loads, or third-
party interference
3.4
commissioning
activities required to pressurise pipework, stations, equipment and assemblies with gas and to put them
into operation
3.5
control zone
strip of land along the pipeline over which the pipeline operator has a right to control activities
3.6
decommissioning
activities required to take out of service any pipework, station, equipment or assemblies filled with gas
and to disconnect them from the system
3.7
design factor
f
o
factor applied when calculating minimum wall thickness or design pressure
3.8
desig
...
Die Norm EN 1594:2024 legt die funktionalen Anforderungen an Pipelines mit einem maximalen Betriebsdruck von über 16 bar fest. Dieses Dokument stellt sicher, dass die relevanten mechanischen Anforderungen für Rohrleitungen in Anlagen mit einem maximalen Betriebsdruck von über 16 bar umfassend beschrieben sind. Die Norm ist besonders relevant für die Erdgasinfrastruktur, speziell für Onshore-Hochdruckstahlpipeline-Systeme, und definiert die Rahmenbedingungen für den sicheren Transport von nicht korrosivem Erdgas, Biogas und Wasserstoff. Eine der Stärken dieser Norm liegt in ihrer umfassenden Definition des Anwendungsbereichs, der deutlich macht, dass sie nicht nur für neue Pipelines gilt, sondern auch für die Umnutzung bestehender Infrastrukturen. Dies fördert die Nachhaltigkeit im Energiebereich und bietet Betreibern eine klare Grundlage für die Anpassung und Nutzung vorhandener Ressourcen. Die Norm enthält präzise Vorgaben bezüglich der Materialanforderungen, wobei ausschließlich unlegierte oder niedriglegierte Kohlenstoffstahlkomponenten zulässig sind. Diese spezifischen Vorgaben garantieren die Festigkeit und Zuverlässigkeit der Pipelineinfrastruktur. Zudem werden die entscheidenden Aspekte des Designs berücksichtigt, indem Bedingungen wie der Temperaturbereich von -40 °C bis 120 °C und der Umgang mit verschiedenen Gasarten festgelegt werden. Ein weiterer Vorteil ist, dass die Norm EN 1594:2024 bei der Erstellung von nationalen Standards und Codes beachtet werden sollte. Dies schafft eine harmonisierte Basis für die Implementierung in verschiedenen Mitgliedstaaten des CEN und unterstützt damit die Vereinheitlichung von Sicherheitsstandards innerhalb der Europäischen Union. Bei eventuellen Konflikten mit nationalen Vorschriften, die strengere Anforderungen stellen, hat die nationale Gesetzgebung Vorrang, was die Relevanz der Norm in der Praxis nochmals unterstreicht. Insgesamt trägt die Norm EN 1594:2024 entscheidend zu einer sicheren und effizienten Gasinfrastruktur bei und stellt sicher, dass alle rechtlichen und technischen Rahmenbedingungen berücksichtigt werden, um eine hohe Betriebssicherheit zu gewährleisten. Die klare Struktur und die definierten Anwendungsbereiche dieser Norm machen sie zu einem unverzichtbaren Instrument für Ingenieure und Betreiber, die im Bereich der Hochdruck-Gasleitungen tätig sind.
The standard EN 1594:2024 presents a comprehensive framework for the functional requirements of gas infrastructure, specifically targeting pipelines operating at a maximum pressure exceeding 16 bar. One of the key strengths of this document lies in its clear delineation of the scope, which encompasses the mechanical requirements for associated pipework in stations under the defined pressure threshold. This ensures that significant aspects of the gas transport infrastructure are adequately addressed, particularly for the transportation of non-corrosive natural gas, biomethane, hydrogen, and their mixtures. The document is notably relevant for its practicality, catering to onshore high-pressure steel pipeline infrastructures. By establishing guidelines from the initial point where the pipeline crosses the traditional boundary between onshore and offshore systems, this standard effectively extends its applicability to a range of scenarios, including instances where pipelines traverse fjords and lakes. This broad inclusivity makes it vital for the industry as it adapts to evolving transport needs and emphasizes safety across various environments. Another strength is its consideration of the operational temperature range of −40 °C to 120 °C, thereby allowing for the safe transportation of gas under various climatic conditions. Furthermore, the specification that infrastructure be composed of unalloyed or low alloyed carbon steel ensures that the construction materials meet industry standards for durability and reliability. Notably, the reference to existing national standards and codes of practice enriches the standard’s applicability, allowing stakeholders to integrate EN 1594:2024 with localized regulations and ensuring compliance with varying legislative contexts across CEN member countries. The inclusion of guidelines for the repurposing of existing pipelines adds significant value by facilitating infrastructure adaptation in alignment with modern requirements, thus promoting not only safety but also economic efficiency and resource sustainability. Overall, EN 1594:2024 stands as a well-structured, vital document that supports safe and efficient gas transportation through rigorous functional specifications tailored for high-pressure pipelines.
SIST EN 1594:2024 문서는 최대 운영 압력이 16 bar를 초과하는 가스 파이프라인에 대한 기능 요구 사항을 체계적으로 설명하고 있습니다. 이 표준은 고압 가스가 안전하고 효율적으로 전송될 수 있도록 하는 기본 원칙을 규정하고 있으며, 파이프라인 인프라의 기계적 요구 사항도 포함하고 있습니다. 특히 이 문서는 육상 고압 강파이프라인 인프라의 적용 범위를 명확히 하며, 비부식성 자연가스, 바이오메탄가스, 수소가스 및 이들의 혼합가스를 포함하여 안전한 운영 조건을 보장하는 기술적 평가를 강조합니다. 또한 기존 파이프라인의 재사용에도 적용할 수 있는 점은 큰 장점입니다. 이 표준은 유럽 연합 내에서 보다 구체적인 국가 기준 및 절차와 함께 사용되도록 설계되어, 각국의 법률 및 규정이 이 표준보다 더 제한적인 요구 사항을 가질 경우 우선 적용된다는 점을 명시하고 있습니다. 이러한 접근 방식은 다양한 국가에서의 가스 인프라의 안전성을 높이고, 각국의 환경적 및 기술적 특수성을 반영할 수 있는 유연성을 제공합니다. 결론적으로, EN 1594:2024 표준은 고압 가스 파이프라인 설계 및 운영의 필수적인 기능 요구 사항을 포괄적으로 다루고 있어, 이 분야의 전문가들에게 중요한 참고 자료로 작용할 것입니다. 사용자들은 이 표준을 통해 더 안전하고 효율적인 가스 인프라 구축에 기여할 수 있습니다.
La norme EN 1594:2024 établit des exigences fonctionnelles claires pour les pipelines utilisés dans le transport de gaz avec une pression de fonctionnement maximale supérieure à 16 bar. Son champ d'application couvre non seulement les pipelines en acier à haute pression, mais aussi les infrastructures associées, garantissant ainsi une approche holistique adaptée aux besoins de l'industrie. L'un des points forts de cette norme est sa précision dans la définition des exigences mécaniques pour les installations situées en amont de la centrale de mesure du producteur de gaz. Cela permet d'assurer la sécurité et l'efficacité des infrastructures de gaz, qui consistent principalement en des composants en acier carbone non allié ou faiblement allié, soulignant ainsi l'importance des matériaux dans la conception des pipelines. De plus, la norme reconnaît la diversité des gaz pouvant être transportés, incluant le gaz naturel non corrosif, le biométhane et même l'hydrogène. Cette flexibilité est essentielle dans le contexte actuel de transition énergétique, où l'intégration de nouvelles sources d'énergie devient incontournable. La norme aborde également le problème de la réutilisation des pipelines existants, ce qui répond à un besoin croissant de durabilité dans les infrastructures gazières. En intégrant des directives sur la modernisation des systèmes de pipelines, la norme EN 1594:2024 se positionne comme un document pertinent dont l'application peut contribuer à réduire les coûts et à minimiser l'impact environnemental. En outre, cette norme met en avant l'importance d’une coordination avec les normes nationales et les codes de pratique. Cela renforce la pertinence de la norme dans un cadre réglementaire évolutif, tout en assurant que ses exigences s'harmonisent avec des prescriptions plus restrictives, le cas échéant. En somme, la norme EN 1594:2024 constitue un document indispensable pour les professionnels du secteur, garantissant la sécurité, la conformité et l'efficacité des infrastructures gazières à haute pression.
標準化文書SIST EN 1594:2024は、最大動作圧力が16バールを超えるガスインフラ設備のパイプラインに関連する機能要件を定義しています。この文書は、16バールを超える最大動作圧力を持つパイプラインの機械的要件に加え、ガスの安全かつ効率的な輸送を確保するために必要な基本原則を明確に示しています。 この標準の範囲は、オンショアの高圧鋼パイプラインインフラに適用されます。具体的には、パイプラインがオンショアの境界を越えた地点から始まり、商業または工業施設の一部ではない場所で構築されることが求められます。また、16バールを超える圧力および−40 °Cから120 °Cの設計温度範囲におけるガスの輸送に特化している点が強調されます。 この標準の強みは、非腐食性の天然ガス、バイオメタンガス、水素ガスなどの多様なガスの流通を扱っていることにあります。さらに、既存のパイプラインの再利用にも適用可能であるため、環境への配慮や持続可能性が求められる現在の状況においても、その関連性が高いと言えるでしょう。 標準文書はユーザーに対し、CEN加盟国内で存在するより詳細な国家標準や実務規範についても意識するよう求めています。このように、SIST EN 1594:2024は、国際的なガスインフラの規制にも対応しつつ、各国の法令との整合性を保つことができる柔軟性を持っています。 以上の点から、SIST EN 1594:2024は、16バールを超える圧力条件下でのガス輸送を安全かつ効率的に実施するための重要なガイドラインを提供しており、その適用範囲の広さと具体性が際立っています。
記事タイトル：FprEN 1594 - ガスインフラストラクチャー - 16バール以上の最大運転圧力用のパイプライン - 機能要件 記事概要：この文書は、16バール以上の最大運転圧力用のパイプラインの機能要件について説明しています。また、この文書では、16バール以上の最大運転圧力を持つステーションのパイプワークの機械要件も説明しています。 注意1：溶接の要件はEN 12732で説明されています。ステーションの機能要件については、EN 1776、EN 1918-5、EN 12186、およびEN 12583に記載されています。 この文書は、以下の条件が該当する陸上の高圧鋼管パイプラインインフラストラクチャーを介してガスを輸送する場合に適用されます： - 陸上： - パイプラインは通常の陸地と沖合いの間にあるバッテリーリミットを最初に横断する点から始まり、これは商業施設や産業施設の一部としての産業プロセスの一部でない場所にありますが、これらの施設に供給するパイプラインや設備を除きます。 - 陸上で始まり、本土のパイプラインシステムがその後、フィヨルド、湖などを横断する場合も該当します。 - 高圧：最大運転圧力が16バールを超え、設計温度が-40°Cから120°Cのガス。 - 鋼管インフラストラクチャー：パイプ、弁、カップリングなどのパイプライン部品で構成されるインフラで、無合金または低合金の炭素鋼で作られた部品に制限され、溶接、フランジ、機械的なカップリングで接続されます。 - ガス：非腐食性の天然ガス、バイオメタンガス、水素ガス、およびこれらのガスの混合物で、技術的な評価が運転条件やガスの成分や特性がパイプラインの安全な運用に影響を及ぼさないことを確認しています。 この文書で取り扱われるガスインフラストラクチャーは、ガスの供給者の計量ステーションの後から始まります。 注意2：パイプラインシステムの機能区分は通常、インストールの遮断弁の直後にありますが、特定の状況によっては異なることがあります。パイプラインシステムの機能区分は通常、インストールの遮断弁に位置していますが、特定の状況では異なることがあります。 ガス供給のパイプラインの概略図が図1に示されています。 この文書は既存のパイプラインの再利用にも適用できます。 [図1 - 16バール以上のガス供給用パイプラインの概略図] この文書は、ガスインフラストラクチャーに共通の基本原則を規定しています。この規格の利用者は、CEN加盟国でより詳細な国家規格や実施規程が存在することを認識していることが期待されています。 この規格は上記の基本原則を設定する国家規格や実施規程と組み合わせて適用することが意図されています。国家法規との要求事項の制約が競合する場合は、国家法規が優先されることがCEN/TR 13737で示されています。 CEN/TR 13737は以下を提供します： - 各加盟国で適用される法規の説明 - 必要に応じて、これよりも厳しい国家要件 - 最新情報のための国家連絡先
기사 제목: FprEN 1594 - 가스 인프라 - 16 바 이상의 최대 작동 압력을 갖는 파이프 라인 - 기능 요구 사항 기사 내용: 이 문서는 16 바 이상의 최대 작동 압력을 갖는 파이프 라인의 기능 요구 사항을 설명합니다. 또한 이 문서는 16 바 이상의 최대 작동 압력을 갖는 스테이션의 파이프워크에 대한 기계적 요구 사항도 설명합니다. 노트 1: 용접 요구 사항은 EN 12732에서 설명되고 있습니다. 스테이션의 기능 요구 사항은 EN 1776, EN 1918-5, EN 12186 및 EN 12583에서 제공됩니다. 이 문서는 다음이 적용되는 육상 고압 강관 파이프라인 인프라를 통해 가스를 운반하기 위한 것입니다: - 육상: - 파이프 라인이 일반적으로 육지와 해상 사이의 배전기한을 처음으로 통과하는 지점부터 시작되며, 상업이나 산업적인 부지의 일부로서 해당 부지에서 산업 공정의 일부로서 존재하지 않는 경우에만 해당됨. 해당 부지를 공급하는 파이프 라인 및 시설을 제외하고; - 육지 상에서 시작되는 파이프 라인 시스템은 이후에 fjord, lake 등을 통과하더라도 해당됨. - 고압: 16 바 이상의 최대 작동 압력을 갖고, -40°C부터 120°C 사이의 설계 온도를 갖춘 가스. - 강관 파이프라인 인프라: 파이프, 밸브, 결합 등으로 이루어진 인프라로서, 특정되지 않은 또는 낮은 합금 탄소강으로 만든 부품에 제한되고, 용접, 플랜지, 기계적 결합 등으로 연결됨. - 가스: 부식성이 없는 천연 가스, 바이오 가스, 수소 가스 및 이러한 기체들의 혼합물이 이러한 기체들의 운전 조건이나 구성물 또는 특성이 파이프라인의 안전한 운영에 영향을 미치지 않음을 기술적 평가로 확인한 경우. 이 문서에서 다루는 가스 인프라는 가스 생산자의 계량 스테이션 이후에서 시작됩니다. 노트 2: 파이프라인 시스템의 기능 구분은 일반적으로 설치의 차단 밸브 바로 뒤에 있지만, 특정한 상황에 따라 다를 수 있습니다. 파이프라인 시스템의 기능 구분은 일반적으로 설치의 차단 밸브에 위치하지만, 특정한 상황에서 다를 수 있습니다. 파이프라인 인프라에 대한 도식화된 표현은 도면 1에 제시되어 있습니다. 이 문서는 기존 파이프라인의 재사용에도 적용될 수 있습니다. [도면 1 - 16 바 이상의 가스 공급을 위한 파이프라인의 도식 표현] 이 문서는 가스 인프라에 대한 일반적인 기본 원칙을 명시합니다. 이 표준의 사용자는 CEN 회원 국가에서 더 자세한 국가 표준 및/또는 관행 코드가 존재할 수 있다는 점을 알아야 합니다. 본 표준은 위에서 언급한 기본 원칙을 설명하는 국가 표준 및/또는 관행 코드와 함께 적용되어야 합니다. 국가 법령/규정에서 보다 제한적인 요구 사항이 이 표준의 요구 사항과 충돌하는 경우, 국가 법령/규정이 우선시되는 것을 CEN/TR 13737에서 설명되어 있습니다. CEN/TR 13737은 다음을 제공합니다: - 회원 국가에서 적용되는 모든 법률/규정에 대한 설명; - 필요한 경우, 보다 제한적인 국가 요구 사항; - 최신 정보를 위한 국가 연락처.
The article discusses a draft standard, FprEN 1594, which outlines the functional and mechanical requirements for pipelines with a maximum operating pressure over 16 bar. The standard applies to onshore high-pressure steel pipeline infrastructures that transport gas. It covers gas pipelines starting from the point where they cross from offshore to onshore, excluding pipelines within commercial or industrial premises. The standard applies to pipelines made of unalloyed or low alloyed carbon steel and joined by welds, flanges, or mechanical couplings. It also includes requirements for gas quality and the demarcation of the pipeline system. The article emphasizes that this standard should be used in conjunction with national standards and codes of practice and that national legislation takes precedence in the event of conflicts.
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