EN 1514-8:2004
(Main)Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 8: Polymeric O-Ring gaskets for grooved flanges
General Information
- Abstract
This document specifies the dimensions of polymeric O-Ring gaskets for use with grooved flanges complying with EN 1092 for PN 10, PN 16, PN 25, PN 40.
NOTE 1 Dimensions of other types of gaskets for use with flanges to EN 1092 1, EN 1092 2, EN 1092 3 and EN 1092 4 are given in EN 1514 1, EN 1514 2, EN 1514 3, EN 1514 4, EN 1514-6 and EN 1514-7
NOTE 2 Annex A lists information that should be supplied by the purchaser when ordering gaskets in circumstances where the choice of the gasket materials appropriate to the service is left to the supplier.
- Status
- Published
- Publication Date
- 16-Nov-2004
- Withdrawal Date
- 30-May-2005
- Technical Committee
- CEN/TC 74 - Flanges and their joints
- Drafting Committee
- CEN/TC 74/WG 8 - Gaskets
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 03-Jun-2024
- Completion Date
- 03-Jun-2024
Overview
EN 1514-8:2004 is a European standard developed by CEN that specifies the dimensions of polymeric O-Ring gaskets designed for use with grooved flanges. These flanges comply with EN 1092 and cover pressure ratings PN 10, PN 16, PN 25, and PN 40. The document is part of a comprehensive series dealing with flange gaskets for PN-designated flanges, each addressing different gasket types and applications.
This standard plays a crucial role in ensuring compatibility and interchangeability of polymeric O-Ring gaskets with grooved flanges, supporting consistent sealing performance across various industrial piping systems. It also provides guidelines on ordering information to ensure correct material selection based on operating conditions.
Key Topics
Scope and Applicability
EN 1514-8:2004 applies to polymeric O-Ring gaskets intended for grooved flanges with specific PN pressure designations-PN 10, 16, 25, and 40.Dimensions and Tolerances
The document defines precise gasket dimensions including nominal diameter (DN), inside diameter, annulus diameter, and allowable manufacturing tolerances essential for reliable sealing. The standard covers a wide range of nominal diameters from DN 10 up to DN 3000.Designations and Marking
Gasket designation includes nominal diameter, PN rating, and polymer type to clearly identify gasket specifications. An example format:Gasket EN 1514-8 - 150 - 10 - polymer typeMaterial Selection Guidance
Selecting the appropriate polymeric material is critical for gasket performance under specific temperature and fluid conditions. The standard recommends purchaser-supplier consultation to determine the optimal polymer material.Packaging Requirements
Packaging must adequately protect the gaskets from damage during transport and handling prior to installation.Ordering Information (Annex A)
Annex A outlines essential details that purchasers should provide, such as the document number, DN, PN rating, and desired polymer material or operating conditions to assist suppliers in providing the correct gasket.
Applications
EN 1514-8 polymeric O-Ring gaskets are widely used in industries where flanged pipe connections require reliable sealing under pressure, including:
- Water and wastewater treatment
- Chemical processing plants
- Oil and gas pipelines
- Food and beverage manufacturing
- Pharmaceutical industry
- HVAC and industrial heating systems
These gaskets offer enhanced sealing for grooved flange assemblies, known for ease of installation, durability, and compatibility with pressurized systems. Proper gasket selection and sizing according to this standard ensure tight seals, reduce leaks, and support system safety and efficiency.
Related Standards
EN 1514-8 is part of the EN 1514 series addressing gasket dimensions for PN-designated flanges:
- EN 1514-1: Non-metallic flat gaskets
- EN 1514-2: Spiral wound gaskets for steel flanges
- EN 1514-3: Non-metallic PTFE envelope gaskets
- EN 1514-4: Corrugated, flat, or grooved metallic and filled metallic gaskets
- EN 1514-6: Covered serrated metal gaskets
- EN 1514-7: Covered metal jacketed gaskets
Other related standards that specify flange requirements include:
- EN 1092 series: Circular flanges for pipes, valves, fittings, and accessories
- EN 1333: Pipework components - Definition and selection of PN
- EN ISO 6708: Pipework components - Definition and selection of DN (nominal size)
Summary
EN 1514-8:2004 provides essential specifications for polymeric O-Ring gaskets used in grooved flange joint assemblies, ensuring dimensional consistency and proper sealing performance for various PN-rated flanges. It guides industry professionals in choosing the right gasket dimensions and materials for efficient and safe pipework systems. This standard facilitates harmonization across European markets, supporting high-quality sealing solutions in numerous industrial applications.
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Refers
EN 1333:2006 - Flanges and their joints - Pipework components - Definition and selection of PN - 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
EN 1514-8:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 8: Polymeric O-Ring gaskets for grooved flanges". This standard covers: This document specifies the dimensions of polymeric O-Ring gaskets for use with grooved flanges complying with EN 1092 for PN 10, PN 16, PN 25, PN 40. NOTE 1 Dimensions of other types of gaskets for use with flanges to EN 1092 1, EN 1092 2, EN 1092 3 and EN 1092 4 are given in EN 1514 1, EN 1514 2, EN 1514 3, EN 1514 4, EN 1514-6 and EN 1514-7 NOTE 2 Annex A lists information that should be supplied by the purchaser when ordering gaskets in circumstances where the choice of the gasket materials appropriate to the service is left to the supplier.
This document specifies the dimensions of polymeric O-Ring gaskets for use with grooved flanges complying with EN 1092 for PN 10, PN 16, PN 25, PN 40. NOTE 1 Dimensions of other types of gaskets for use with flanges to EN 1092 1, EN 1092 2, EN 1092 3 and EN 1092 4 are given in EN 1514 1, EN 1514 2, EN 1514 3, EN 1514 4, EN 1514-6 and EN 1514-7 NOTE 2 Annex A lists information that should be supplied by the purchaser when ordering gaskets in circumstances where the choice of the gasket materials appropriate to the service is left to the supplier.
EN 1514-8:2004 is classified under the following ICS (International Classification for Standards) categories: 23.040.80 - Seals for pipe and hose assemblies. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1514-8:2004 has the following relationships with other standards: It is inter standard links to EN 1092-1:2018, EN 1092-3:2003, EN 1092-2:2023, EN ISO 6708:1995, EN 1333:2006, EN 1092-4:2002, EN 14772:2005, EN 14772:2021, EN 1594:2024, EN 488-2:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1514-8:2004 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 - Maße für Dichtungen für Flansche mit PN-Bezeichnung - Teil 8: Runddichtringe aus Gummi für NutflanscheBrides et leurs assemblages - Dimensions des joints pour les brides désignées PN - Partie 8 : Joints d'étanchéité toriques en caoutchouc pour brides a rainuresFlanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 8: Polymeric O-Ring gaskets for grooved flanges23.040.80Tesnila za cevne zvezeSeals for pipe and hose assemblies23.040.60Prirobnice, oglavki in spojni elementiFlanges, couplings and jointsICS:Ta slovenski standard je istoveten z:EN 1514-8:2004SIST EN 1514-8:2005en01-januar-2005SIST EN 1514-8:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1514-8November 2004ICS 23.040.80English versionFlanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 8: Polymeric O-Ring gaskets forgrooved flangesBrides et leurs assemblages - Dimensions des joints pourles brides désignées PN - Partie 8 : Joints d'étanchéitétoriques en caoutchouc pour brides à rainuresFlansche und ihre Verbindungen - Maße für Dichtungen fürFlansche mit PN-Bezeichnung - Teil 8: Runddichtringe ausGummi für NutflanscheThis European Standard was approved by CEN on 23 September 2004.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, 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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1514-8:2004: ESIST EN 1514-8:2005
Information to be supplied by the purchaser.7
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