Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 3: Non-metallic PTFE envelope gaskets

This standard specifies the dimensions and marking of IBC (inside bolt circle) non-metallic envelope gaskets for use with flanges complying with EN 1092 Parts 1, 2, 3, 4, for PN 6 up to and including PN 63, up to and including DN 600.

Flansche und ihre Verbindungen - Maße für Dichtungen für Flansche mit PN-Bezeichnung - Teil 3: Nichtmetallische Weichstoffdichtungen mit PTFE-Mantel

Diese Norm legt die Maße und Kennzeichnung von nichtmetallischen Dichtungen ohne Schraubenlöcher (Dichtung innerhalb des Lochkreisdurchmessers) mit Mantel für Flansche nach prEN 1092 Teile 1, 2, 3, 4 fest für Nenndrücke PN 6 bis einschließlich PN 63 und Nennweiten bis einschließlcih DN 600.

Brides et leurs assemblages - Dimensions des joints pour les brides désignées PN - Partie 3: Joints non métalliques à enveloppe PTFE

La présente norme prescrit les dimensions et le marquage des joints non métalliques à enveloppe de type inscrit, utilisés avec les brides conformes aux normes EN 1092, parties 1, 2, 3, 4 pour des PN 6 à PN 63 inclus et des DN jusqu'à DN 600 inclus.

Prirobnice in prirobnični spoji - Mere tesnil za prirobnice z oznako PN - 3. del: Nekovinska tesnila v PTFE ovoju

General Information

Status
Published
Publication Date
22-Apr-1997
Withdrawal Date
30-Oct-1997
ICS
23.040.80 - Seals for pipe and hose assemblies
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
04-Jun-2023
Completion Date
04-Jun-2023
Directive
Not Harmonized97/23/EC - Pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 1514-3:1998 - Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 3: Non-metallic PTFE envelope gaskets

Relations

Referred By
HD 236.4 S2:1978 - Methods of measurement for radio transmitters - Part 4: Amplitude/frequency characteristics and non-linearity distortion in transmitters for radiotelephony and sound broadcasting - Supplement 1: Section 3
Effective Date
09-Feb-2026
Referred By
HD 236.3 S1:1977 - Methods of measurement for radio transmitters - Part 3: Wanted and unwanted modulation - Supplement 1: Appendices - Supplement 2: Unwanted modulation, including hum and noise modulation
Effective Date
09-Feb-2026
Referred By
EN 60244-11:1993 - Methods of measurement for radio transmitters - Part 11: Transposers for FM sound broadcasting
Effective Date
09-Feb-2026
Referred By
EN 12308:1998 - Installations and equipment for LNG - Suitability testing of gaskets designed for flanged joints used on LNG piping
Effective Date
28-Jan-2026
Referred By
EN 13555:2014 - Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections
Effective Date
28-Jan-2026
Referred By
EN 14772:2005 - Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560
Effective Date
28-Jan-2026
Referred By
EN 14772:2021 - Flanges and their joints - Quality assurance inspection and testing of gaskets in accordance with the series of standards EN 1514 and EN 12560
Effective Date
28-Jan-2026
Referred By
EN 1594:2024 - Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
Effective Date
28-Jan-2026
Referred By
EN 13555:2004 - Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections
Effective Date
28-Jan-2026
Referred By
EN 488-2:2025 - District heating and district cooling pipes - Bonded pipe systems for directly buried hot and cold water networks - Part 2: Factory made steel service valve assembly for steel service pipes, polyurethane thermal insulation and a casing of polyethylene
Effective Date
28-Jan-2026
Referred By
EN 12007-3:2015 - Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 3: Specific functional requirements for steel
Effective Date
28-Jan-2026
Referred By
EN 1092-4:2002 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4: Aluminium alloy flanges
Effective Date
28-Jan-2026
Referred By
EN 12007-3:2000 - Gas supply systems - Pipelines for maximum operating pressure up to and including 16 bar - Part 3: Specific functional recommendations for steel
Effective Date
28-Jan-2026
Referred By
EN 13555:2021 - Flanges and their joints - Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections
Effective Date
28-Jan-2026

Overview

EN 1514-3:1997 is a key European standard developed by CEN that specifies the dimensions and marking requirements for non-metallic PTFE envelope gaskets. These gaskets are intended for use with PN-designated flanges, specifically in compliance with EN 1092 Parts 1, 2, 3, and 4. The standard covers PTFE envelope gaskets applied to flanges in pressure ranges from PN 6 up to PN 63, and nominal diameters up to and including DN 600. This document provides uniformity and reliability in the design and selection of gaskets, ensuring the safe and efficient operation of flanged joints, particularly in demanding industrial applications.

Key Topics

EN 1514-3:1997 focuses on several important areas related to flanges and gasket technology:

  • Scope and Definitions
    Clarifies the application area, the type of gaskets included (IBC - inside bolt circle), and the relevant flange standards.

  • Dimensional Requirements
    Specifies the gasket dimensions for various PN (pressure nominal) ratings and DN (nominal diameter) sizes, ensuring compatibility with EN 1092 flanges.

  • Marking Requirements
    Details the mandatory markings for PTFE envelope gaskets, improving traceability and consistency during installation and inspection.

  • Type of Gaskets
    Defines non-metallic envelope gaskets, particularly those made with PTFE (Polytetrafluoroethylene), enhancing chemical resistance and service life.

Applications

Non-metallic PTFE envelope gaskets play a crucial role in numerous piping and flange assemblies, providing reliable sealing in a wide range of industries. Typical applications include:

  • Chemical Processing
    PTFE envelope gaskets are highly resistant to aggressive chemicals, making them ideal for chemical manufacturing and processing plants.

  • Petrochemical and Refining
    Used extensively in oil and gas industries where secure sealing is needed to handle hazardous fluids and gases.

  • Pharmaceutical and Food Industries
    The non-reactive, hygienic properties of PTFE make these gaskets suitable for sanitary piping systems.

  • Water Treatment and Utilities
    Provide dependable sealing in water supply, wastewater treatment, and utility networks that require corrosion-resistant materials.

By following EN 1514-3:1997, manufacturers, installers, and maintenance personnel can ensure proper fit, performance, and safety in pipeline connections using PTFE envelope gaskets.

Related Standards

For comprehensive understanding and proper application, it is essential to consider EN 1514-3:1997 alongside several related standards:

  • EN 1514 series
    Covers dimensions and requirements for various types of gaskets for PN-designated flanges.

  • EN 1092 Parts 1-4
    Specifies the requirements for circular flanges made from different materials and for various pressure classes.

  • EN 12560 series
    Provides additional details on gasket materials and types for flanges.

  • ISO and national standards
    Depending on the region and specific application, other relevant gasket and flange standards may apply.

EN 1514-3:1997 is essential for ensuring the interchangeability, quality, and safety of PTFE envelope gaskets used in PN flange connections across a wide range of industries. Adherence to this standard facilitates efficient installation and long-term reliability of pipeline joints.

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Frequently Asked Questions

EN 1514-3:1997 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 3: Non-metallic PTFE envelope gaskets". This standard covers: This standard specifies the dimensions and marking of IBC (inside bolt circle) non-metallic envelope gaskets for use with flanges complying with EN 1092 Parts 1, 2, 3, 4, for PN 6 up to and including PN 63, up to and including DN 600.

This standard specifies the dimensions and marking of IBC (inside bolt circle) non-metallic envelope gaskets for use with flanges complying with EN 1092 Parts 1, 2, 3, 4, for PN 6 up to and including PN 63, up to and including DN 600.

EN 1514-3:1997 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 1514-3:1997 has the following relationships with other standards: It is inter standard links to HD 236.4 S2:1978, HD 236.3 S1:1977, EN 60244-11:1993, EN 12308:1998, EN 13555:2014, EN 14772:2005, EN 14772:2021, EN 1594:2024, EN 13555:2004, EN 488-2:2025, EN 12007-3:2015, EN 1092-4:2002, EN 12007-3:2000, EN 13555:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 1514-3:1997 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.

EN 1514-3:1997 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)


SLOVENSKI STANDARD
01-oktober-1998
Prirobnice in prirobnični spoji - Mere tesnil za prirobnice z oznako PN - 3. del:
Nekovinska tesnila v PTFE ovoju
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 3:
Non-metallic PTFE envelope gaskets
Flansche und ihre Verbindungen - Maße für Dichtungen für Flansche mit PN-
Bezeichnung - Teil 3: Nichtmetallische Weichstoffdichtungen mit PTFE-Mantel
Brides et leurs assemblages - Dimensions des joints pour les brides désignées PN -
Partie 3: Joints non métalliques a enveloppe PTFE
Ta slovenski standard je istoveten z: EN 1514-3:1997
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
23.040.80 Tesnila za cevne zveze Seals for pipe and hose
assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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