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)

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 systemes 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: 31-Aug-2006
• ICS: 75.200 - Petroleum products and natural gas handling equipment
• ICS: 83.140.30 - Plastics pipes and fittings for non fluid use
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2006
• Due Date: 01-Sep-2006
• Completion Date: 01-Sep-2006
• Ref Project: 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.

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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