SIST EN 12560-5:2002
(Main)Flanges and their joints - Gaskets for Class-designated flanes - Part 5: Metallic ring joint gaskets for use with steel flanges
General Information
- Abstract
This standard specifies the dimensions, types, design, materials and marking requirements of metallic ring-joint gaskets for use in conjunction with specific flange facings (type J) of flanges complying with EN 1759-1 for Class designations 150, 300, 600, 900 and 1500 for nominal size designations up to and including NPS 24 (DN600), and for Class designation 2500 up to and including NPS 12 (DN300).
- Status
- Published
- Publication Date
- 30-Apr-2002
- Technical Committee
- TLP - Pressure vessels
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-May-2002
- Due Date
- 01-May-2002
- Completion Date
- 01-May-2002
- Directive
- 97/23/EC - Pressure equipment
Overview
EN 12560-5:2001 is a CEN standard that specifies requirements for metallic ring-joint gaskets (RTJ gaskets) intended for use with steel flanges. The document covers the dimensions, types, design, materials and marking requirements of metallic ring-joint gaskets that mate with flange facings of type J as defined for flanges complying with EN 1759-1. The scope includes Class-designated flanges 150, 300, 600, 900 and 1500 for nominal sizes up to and including NPS 24 (DN600), and Class 2500 up to and including NPS 12 (DN300).
Key Topics
- Gasket types and geometry: Defines the metallic ring-joint (RTJ) gasket forms compatible with type J flange facings.
- Dimensions and tolerances: Specifies dimensional envelopes and acceptable manufacturing tolerances for interchangeability.
- Design and materials: Sets requirements for gasket profile, cross-section and suitable metallic materials to ensure reliable sealing with steel flanges.
- Marking and traceability: Requires clear marking of gaskets for identification, material, size and class to support installation, inspection and procurement.
- Compatibility limits: Clarifies the class designations (150–2500) and nominal size (NPS/DN) ranges where the standard applies.
Applications
EN 12560-5:2001 is used wherever high-integrity metal-to-metal flange seals are required, particularly in systems requiring ring-type joint (RTJ) sealing:
- Oil & gas pipelines and processing facilities
- Petrochemical and chemical plants
- Power generation (high-pressure steam and feedwater systems)
- Pressure-containing piping and valve assemblies in heavy industry
- Fabrication shops and flange/gasket manufacturers for quality control and product specification
Typical users include piping designers, mechanical engineers, procurement & inspection teams, flange and gasket manufacturers, and plant maintenance personnel who need to select or verify RTJ gaskets for Class-designated steel flanges.
Related Standards
- EN 1759-1 - referenced flange specification for type J facings (compatibility requirement)
- EN 12560 series - series context for gaskets for Class-designated flanges
- ICS classifications: 23.040.80 (Seals for pipe and hose assemblies) and 23.040.60 (Flanges, couplings and joints)
EN 12560-5:2001 helps ensure consistent, interchangeable metallic ring joint gaskets for steel flanges, supporting safe sealing performance and simplified procurement across high-pressure piping applications.
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN 12560-5:2002 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Flanges and their joints - Gaskets for Class-designated flanes - Part 5: Metallic ring joint gaskets for use with steel flanges". This standard covers: This standard specifies the dimensions, types, design, materials and marking requirements of metallic ring-joint gaskets for use in conjunction with specific flange facings (type J) of flanges complying with EN 1759-1 for Class designations 150, 300, 600, 900 and 1500 for nominal size designations up to and including NPS 24 (DN600), and for Class designation 2500 up to and including NPS 12 (DN300).
This standard specifies the dimensions, types, design, materials and marking requirements of metallic ring-joint gaskets for use in conjunction with specific flange facings (type J) of flanges complying with EN 1759-1 for Class designations 150, 300, 600, 900 and 1500 for nominal size designations up to and including NPS 24 (DN600), and for Class designation 2500 up to and including NPS 12 (DN300).
SIST EN 12560-5:2002 is classified under the following ICS (International Classification for Standards) categories: 23.040.60 - Flanges, couplings and joints; 23.040.80 - Seals for pipe and hose assemblies. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 12560-5:2002 has the following relationships with other standards: It is inter standard links to SIST EN 1759-1:2005, SIST EN ISO 21920-2:2022, SIST HD 236.3 S1:1999, SIST EN 60244-12-2:1999, SIST HD 236.4 S2:1999, SIST EN 60244-11:1999, SIST EN 12007-3:2000, SIST EN 14772:2021, SIST EN 14772:2005, SIST EN 1474-1:2009, SIST EN 1759-4:2004, SIST EN 13555:2021, SIST EN 13555:2005, SIST EN 1594:2024, SIST EN 12007-3:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 12560-5:2002 is associated with the following European legislation: EU Directives/Regulations: 97/23/EC; Standardization Mandates: M/071. 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.
SIST EN 12560-5:2002 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flansche und ihre Verbindungen - Dichtungen für Flansche mit Class-Bezeichnung - Teil 5: RTJ-Dichtungen aus Metall für StahlflanscheBrides et leurs assemblages - Joints pour les brides désignées Class - Partie 5: Joints annulaires métalliques pour utilisation avec des brides en acierFlanges and their joints - Gaskets for Class-designated flanes - Part 5: Metallic ring joint gaskets for use with steel flanges23.040.80Tesnila za cevne zvezeSeals for pipe and hose assemblies2
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