Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3: Flanges (ISO 15590-3:2004, modified)

This part of EN 14870 applies to weldneck and blind flanges (full face, raised face, and RTJ groove) as well as anchor, swivel-ring flanges and orifice flanges.
This part of EN 14870 specifies the technical requirements for carbon steel and low-alloy steel forged flanges for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623.
This part of EN 14870 designates those categories of flanges that meet the industry's need to match ISO 3183 pipe. These flanges are for normal and low-temperature service and include supplementary requirements where required for sour service.
Materials for, or the attachment of, factory-welded extensions, bolting materials, gaskets, slip-on flanges or flanged fittings are not covered by this part of EN 14870.
This part of EN 14870 is not applicable to integrally cast or forged flanges for valves, pumps or other equipment.
This part of EN 14870 does not cover the selection of the flange category or pressure class. Sizes and pressure classes listed in ISO 7005-1 and applicable to this part of EN 14870 are as follows:
-   DN 10 (NPS 1/2) to DN 1500 (NPS 60);
-   PN 20 (class 150), PN 50 (class 300), PN 100 (class 600), PN 150 (class 900), PN 250 (class 1500), PN 420 (class 2500).
On-land supply systems used by the gas supply industry are excluded from the scope of this document.

Erdöl- und Erdgasindustrie - Im Induktionsverfahren gefertigte Rohrbögen, Fittings und Flansche für Rohrleitungs-Transportsysteme - Teil 3: Flansche (ISO 15590-3:2004, modifiziert)

Industries du pétrole et du gaz naturel - Coudes d'induction, raccords et brides pour systèmes de transport par conduites - Partie 3 : Brides (ISO 15590-3:2004, modifié)

Industrija za predelavo nafte in zemeljskega plina – Z indukcijo upognjena cevna kolena, fitingi in prirobnice za transportne cevovodne sisteme – 3. del: Prirobnice (ISO 15590-3:2004, spremenjen)

General Information

Status
Published
Publication Date
14-Feb-2006
Withdrawal Date
30-Aug-2006
ICS
23.040.60 - Flanges, couplings and joints
 
75.200 - Petroleum products and natural gas handling equipment
Technical Committee
CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
Drafting Committee
CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
15-Feb-2006
Completion Date
15-Feb-2006
Ref Project
SIST EN 14870-3:2006 - Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3: Flanges (ISO 15590-3:2004, modified)

Overview

EN 14870-3:2006 - Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3: Flanges (ISO 15590-3:2004, modified) specifies technical requirements for carbon steel and low-alloy forged flanges used in pipeline transportation systems for the petroleum and natural gas industries (as defined in ISO 13623). It covers weldneck and blind flanges (full-face, raised-face, RTJ groove), anchor and swivel-ring flanges, and orifice flanges intended to match ISO 3183 pipe. The standard applies to normal and low-temperature service and includes supplementary provisions for sour service. It excludes bolting, gaskets, slip-on flanges, factory-welded extensions and integrally cast/forged flanges for valves or equipment.

Key Topics and Requirements

  • Scope & compatibility
    • Flange categories matched to ISO 3183 pipe grades and thicknesses.
    • Sizes: DN 10 (NPS 1/2) to DN 1500 (NPS 60).
    • Pressure classes: PN 20 (Class 150) up to PN 420 (Class 2500) as per ISO 7005-1.
  • Materials
    • Carbon steel and low-alloy steel forged flanges; sour-service supplementary requirements referenced.
  • Manufacturing controls
    • Manufacturing Procedure Specification (MPS) requirements, starting material control, hub configuration and heat treatment.
  • Testing & inspection
    • Chemical composition and mechanical property verification (tensile, impact where applicable).
    • Non-destructive testing (NDT): magnetic particle, liquid penetrant, ultrasonic as required.
    • Dimensional checks and hydrostatic testing where applicable.
    • Weldability and repair welding guidance for forged flanges.
  • Documentation & marking
    • Inspection documents, manufacturing record book and traceability/marking requirements.

Applications and Who Uses It

EN 14870-3:2006 is used by:

  • Pipeline designers and engineers specifying flanges for crude oil, gas and product transmission systems.
  • Flange and forging manufacturers producing weldneck, RTJ, blind and orifice flanges compatible with pipeline steels.
  • Quality/inspection teams performing material verification, NDT and acceptance testing.
  • Procurement and project managers ensuring flange supply meets pipeline transport system requirements and sour-service conditions.

Practical applications include flange selection for pipeline joints, tie-ins, metering orifice installations, anchor points and high-pressure/large-diameter transmission pipelines.

Related Standards

  • ISO 15590-3:2004 (base document)
  • ISO 13623 (pipeline transportation systems)
  • ISO 3183 (steel pipe for pipelines)
  • ISO 7005-1 (steel flanges: sizes & pressure classes)
  • ISO 15156-2 (materials for H2S-containing environments)
  • ASME B16.5 / B16.47 (flange dimensions & classes)

EN 14870-3:2006 is essential when specifying forged flanges for petroleum and natural gas pipeline systems to ensure material, manufacturing and testing consistency with industry practice.

Frequently Asked Questions

EN 14870-3:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3: Flanges (ISO 15590-3:2004, modified)". This standard covers: This part of EN 14870 applies to weldneck and blind flanges (full face, raised face, and RTJ groove) as well as anchor, swivel-ring flanges and orifice flanges. This part of EN 14870 specifies the technical requirements for carbon steel and low-alloy steel forged flanges for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. This part of EN 14870 designates those categories of flanges that meet the industry's need to match ISO 3183 pipe. These flanges are for normal and low-temperature service and include supplementary requirements where required for sour service. Materials for, or the attachment of, factory-welded extensions, bolting materials, gaskets, slip-on flanges or flanged fittings are not covered by this part of EN 14870. This part of EN 14870 is not applicable to integrally cast or forged flanges for valves, pumps or other equipment. This part of EN 14870 does not cover the selection of the flange category or pressure class. Sizes and pressure classes listed in ISO 7005-1 and applicable to this part of EN 14870 are as follows: - DN 10 (NPS 1/2) to DN 1500 (NPS 60); - PN 20 (class 150), PN 50 (class 300), PN 100 (class 600), PN 150 (class 900), PN 250 (class 1500), PN 420 (class 2500). On-land supply systems used by the gas supply industry are excluded from the scope of this document.

This part of EN 14870 applies to weldneck and blind flanges (full face, raised face, and RTJ groove) as well as anchor, swivel-ring flanges and orifice flanges. This part of EN 14870 specifies the technical requirements for carbon steel and low-alloy steel forged flanges for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. This part of EN 14870 designates those categories of flanges that meet the industry's need to match ISO 3183 pipe. These flanges are for normal and low-temperature service and include supplementary requirements where required for sour service. Materials for, or the attachment of, factory-welded extensions, bolting materials, gaskets, slip-on flanges or flanged fittings are not covered by this part of EN 14870. This part of EN 14870 is not applicable to integrally cast or forged flanges for valves, pumps or other equipment. This part of EN 14870 does not cover the selection of the flange category or pressure class. Sizes and pressure classes listed in ISO 7005-1 and applicable to this part of EN 14870 are as follows: - DN 10 (NPS 1/2) to DN 1500 (NPS 60); - PN 20 (class 150), PN 50 (class 300), PN 100 (class 600), PN 150 (class 900), PN 250 (class 1500), PN 420 (class 2500). On-land supply systems used by the gas supply industry are excluded from the scope of this document.

EN 14870-3:2006 is classified under the following ICS (International Classification for Standards) categories: 23.040.60 - Flanges, couplings and joints; 75.200 - Petroleum products and natural gas handling equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

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Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrija za predelavo nafte in zemeljskega plina – Z indukcijo upognjena cevna kolena, fitingi in prirobnice za transportne cevovodne sisteme – 3. del: Prirobnice (ISO 15590-3:2004, spremenjen)Erdöl- und Erdgasindustrie - Im Induktionsverfahren gefertigte Rohrbögen, Fittings und Flansche für Rohrleitungs-Transportsysteme - Teil 3: Flansche (ISO 15590-3:2004, modifiziert)Industries du pétrole et du gaz naturel - Coudes d'induction, raccords et brides pour systemes de transport par conduites - Partie 3 : Brides (ISO 15590-3:2004, modifié)Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3: Flanges (ISO 15590-3:2004, modified)83.140.30Cevi, fitingi in ventili iz polimernih materialovPlastics pipes, fittings and valves75.200Petroleum products and natural gas handling equipmentICS:Ta slovenski standard je istoveten z:EN 14870-3:2006SIST EN 14870-3:2006en01-september-2006SIST EN 14870-3:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14870-3February 2006ICS 23.040.60; 75.200 English VersionPetroleum and natural gas industries - Induction bends, fittingsand flanges for pipeline transportation systems - Part 3: Flanges(ISO 15590-3:2004, modified)Industries du pétrole et du gaz naturel - Coudes d'induction,raccords et brides pour systèmes de transport parconduites - Partie 3 : Brides (ISO 15590-3:2004, modifié)Erdöl- und Erdgasindustrie - Im Induktionsverfahrengefertigte Rohrbögen, Fittings und Flansche fürRohrleitungs-Transportsysteme - Teil 3: Flansche (ISO15590-3:2004, modifiziert)This European Standard was approved by CEN on 5 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14870-3:2006: ESIST EN 14870-3:2006

IMO requirement (ISO/TC 8). The standardization is to be achieved wherever possible by the adoption of ISO Standards.” Resulting from Resolution BT 38/1995, "gas supply on land" has been excluded from the scope of ISO 15590-3:2004 for the European adoption by CEN/TC 12.
1) American Society for Testing and Materials, 100 Bar Harbor Drive, West Conshohocken, PA 19428-2959, USA 2) Manufacturer’s Standardization Society of the Valve and Fittings Industry, 127 Park Street, N.E., Vienna, Virginia 22180, USA SIST EN 14870-3:2006

[ISO 14313:1999][1] 3.3 heat batch of steel prepared in one steel-making operation [EN 14870-1:2004] 3.4 imperfection irregularity in the wall or on the surface detectable by methods described in this part of EN 14870 3.5 manufacturing procedure specification MPS document which specifies the process control parameters and the acceptance criteria to be applied for all manufacturing, inspection and testing activities performed during flange manufacture NOTE Adapted from EN 14870-2. 3.6 matching pipe specified pipe grade and thickness to which the flange will be attached 3.7 pressure class numerical pressure design class expressed in accordance with either the nominal pressure (PN) class or the ANSI rating class NOTE In this part of EN 14870, the pressure class is stated by the PN class followed by the ANSI rating class between brackets. [ISO 14313:1999][1] SIST EN 14870-3:2006

5 Designation of flanges Flanges shall be designated as specified in Table 1. Table 1 — Flange designations Non-sour service Sour service Temperature, Td min °C Flange designation Temperature, Td min °C Flange designation ≥ 0 (N) ≥ 0 (NS) < 0 (L) < 0 (LS)
...

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SIST EN 14870-3:2006は、石油及び天然ガス産業向けのパイプライン輸送システムにおける重要な標準の一部であり、特にフランジに関連する技術的要件を詳細に定義しています。この標準の適用範囲は、溶接ネックおよびブラインドフランジ（フルフェイス、レイズドフェイス、RTJグルーブ）のほか、アンカーフランジ、スイベルリングフランジ、オリフィスフランジにまで及びます。 標準の強みは、炭素鋼および低合金鋼製の鍛造フランジに関する具体的な技術要件を定めている点です。これにより、パイプライン輸送システムにおいて、特にISO 13623で定義された基準に従った高い信頼性と安全性が確保されます。また、ISO 3183パイプに適合するフランジカテゴリが指定されているため、業界のニーズに応じたフランジの選定が可能となります。 この標準は、通常および低温サービスに適したフランジを対象としており、サワーサービスに対する補足要件も含まれています。この点が、過酷な運用条件下でも安定した性能を求める石油・ガス業界にとって非常に重要です。 さらに、サイズおよび圧力クラスに関する情報も明示されており、ISO 7005-1に適合したサイズであるDN 10からDN 1500およびPN 20からPN 420（各クラス）が明記されています。これにより、設計者やエンジニアは、特定のアプリケーションにおける適切な選択を容易に行うことができます。 ただし、この標準は、バルブやポンプ、他の機器用の一体鋳造または鍛造フランジや、工場で溶接された延長部品、ボルト材、ガスケット、スリップオンフランジ、フランジ付きフィッティングなどについては対象外であるため、その点を理解しておく必要があります。 このように、SIST EN 14870-3:2006は、高い技術的基準に基づくフランジの規格として、石油および天然ガス産業におけるパイプライン輸送システムの信頼性と安全性を確保し、業界の要件に合った高品質なフランジの利用を促進する重要な役割を果たしています。

The standard EN 14870-3:2006 serves a crucial role in the petroleum and natural gas industries by establishing technical specifications for induction bends, fittings, and flanges specifically designed for pipeline transportation systems. This document focuses primarily on weldneck and blind flanges, which are essential components in ensuring the integrity and functionality of pipeline systems. One of the key strengths of this standard is its clear delineation of flanges types, including full face, raised face, RTJ grooves, anchor flanges, swivel-ring flanges, and orifice flanges. By specifying the technical requirements for carbon steel and low-alloy steel forged flanges, the standard ensures that industry players can depend on consistent quality and performance across various applications. The inclusion of requirements for both normal and low-temperature service, as well as supplementary provisions for sour service, further underscores the adaptability of the flanges to unique operational environments. Moreover, EN 14870-3 identifies categories of flanges aligned with ISO 3183 pipe specifications, enabling companies to meet industry-specific needs effectively. This relevance is enhanced by guiding users towards compliance with the sizes and pressure classes stipulated in ISO 7005-1, which also enhance interoperability among components. However, it is essential to note that the standard does not cover the material specifications for fixtures such as factory-welded extensions, bolting materials, gaskets, or flanged fittings, nor does it apply to integrally cast or forged flanges for valves and pumps. These exclusions may require practitioners to consult additional standards or documents to ensure comprehensive compliance throughout their systems. In essence, EN 14870-3:2006 remains a robust reference point for professionals in the petroleum and natural gas pipeline transportation sector, contributing to improved safety, performance, and standardization across their operations. Its specifications are indispensable for those engaged in designing and implementing effective flanged connections within pressure systems, ensuring reliability and efficiency in the transportation of these critical resources.

EN 14870-3:2006 표준은 석유 및 천연 가스 산업의 파이프라인 운송 시스템에서 사용되는 용접형 넥 블라인드 플랜지(풀 페이스, 레이즈드 페이스, RTJ 홈), 앵커 플랜지, 스위블링 링 플랜지 및 오리피스 플랜지를 포함한 기술적 요구 사항을 명시합니다. 이 표준에서는 ISO 13623에 따라 정의된 탄소강 및 저합금강으로 제작된 포지드 플랜지를 다룹니다. 이 표준의 강점 중 하나는 ISO 3183 파이프와 일치하는 플랜지 카테고리를 지정하여, 석유 및 천연 가스 산업의 필요를 충족시키는 것입니다. 일반 온도 및 저온 서비스에 적합한 플랜지를 포함하며, 특히 산성 서비스가 필요할 경우 보충 요구 사항을 포함하고 있습니다. 이는 업계에서 요구하는 안전성과 신뢰성을 보장하는 중요한 기능입니다. 그러나 EN 14870-3은 공장에서 용접된 확장부나 볼팅 재료, 개스킷, 슬립온 플랜지 또는 플랜지 피팅의 선정에 대해서는 다루지 않습니다. 또한, 밸브, 펌프 또는 기타 장비를 위한 일체형 주조 또는 포지드 플랜지에 대해서도 적용되지 않습니다. 크기 및 압력 클래스에 대한 정보는 ISO 7005-1에 명시되어 있으며, 이 표준에 따라 DN 10부터 DN 1500까지, PN 20부터 PN 420까지의 범위를 포함하고 있습니다. 또한, 이 문서는 가스 공급 산업에서 사용하는 육상 공급 시스템에 대해서는 적용되지 않으므로, 특정한 사용 사례에서의 제한 사항도 명확하게 제시되어 있습니다. 이러한 범위의 명확한 설정은 산업에 맞는 적합한 플랜지 선택의 용이성을 제공합니다. 결론적으로, EN 14870-3:2006은 석유 및 천연 가스 산업의 파이프라인 시스템을 위한 플랜지의 기술적 요구 사항을 명확히 하고 있으며, 각 플랜지의 카테고리와 적용 범위를 정확하게 규정함으로써 업계의 표준화된 접근을 지원하는 중요한 문서입니다.