EN 12560-3:2001
(Main)Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets
This standard specifies the dimensions, types, design, materials and marking requirements of IBC (inside bolt circle) non-metallic PTFE envelope gaskets for use with flanges complying with EN 1759-1, EN 1759-3, EN 1759-4 for Class designation 150 and 300 for sizes up to and including NPS 24 (DN600).
Flansche und ihre Verbindungen - Dichtungen für Flansche mit Class-Bezeichnung - Teil 3: Nichtmetallische Weichstoffdichtungen mit PTFE-Mantel
Diese Norm legt die Masse und Kennzeichnung von nichtmetallischen Weichstoff- dichtungen ohne Schraubenlöcher (Dichtung innerhalb des Lochkreisdurchmessers) mit PTFE-Mantel für Flansche nach EN 1759-1, EN 1759-3 und EN 1759-4 fest für Class 150 und 300 bis NPS 24.
Brides et leurs assemblages - Joints pour les brides désignées Class - Partie 3: Joints non métalliques à enveloppe PTFE
La présente norme prescrit les dimensions et le marquage des joints de type IBC (inscrit) non-métalliques à enveloppe PTFE, utilisés avec les brides conformes aux normes 1759-1, EN 1759-3 et 1759-4 pour les désignations class 150 et class 300 et pour les dimensions NPS jusqu'à et y compris 24.
Prirobnice in prirobnični spoji - Tesnila za prirobnice z oznako Class - 3. del: Nekovinska tesnila v PTFE ovoju
General Information
- Status
- Published
- Publication Date
- 23-Jan-2001
- Withdrawal Date
- 30-Jul-2001
- 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
Overview
EN 12560-3:2001 is a European standard developed by CEN that specifies the dimensions, types, design, materials, and marking requirements for non-metallic PTFE envelope gaskets. These gaskets are designed for use with class-designated flanges complying with standards EN 1759-1, EN 1759-3, and EN 1759-4, specifically for Class 150 and Class 300 flanges with nominal pipe sizes (NPS) up to 24 inches (DN 600). The standard addresses IBC (inside bolt circle) gasket types suitable for flat face (Type A) or raised face (Type B) flanges.
This document is essential for manufacturers, suppliers, and users of PTFE envelope gaskets who require compliant gasket products that meet European norms for flange sealing systems. It ensures the interchangeability and reliability of sealing components used in piping systems under specified pressure classifications.
Key Topics
- Gasket Design and Types: EN 12560-3 defines three gasket designs (A, B, and C), illustrated with exact measurements to suit different flange sizes and pressures. Gaskets consist of an insert enveloped in PTFE, delivering chemical resistance and sealing reliability.
- Dimensions and Tolerances: The standard provides detailed dimensions for gasket inside and outside diameters based on nominal pipe size and flange class, along with permissible manufacturing tolerances to ensure consistency and fit.
- Marking Requirements: Each gasket or its packaging must be clearly marked with the standard number, gasket design type, nominal size, class designation, thickness, material information, and manufacturer identification for traceability and compliance verification.
- Materials and Safety Considerations: Gaskets are made from non-metallic PTFE envelopes, often with compressed fiber inserts. The standard includes safety warnings about potential asbestos content, referencing relevant health regulations and EC directives to ensure safe handling.
- Applicable Flange Classes and Sizes: Specifically covers Class 150 and Class 300 flanges up to DN 600 (NPS 24), supporting a wide range of industrial flange sizes commonly used in process piping.
Applications
EN 12560-3:2001 PTFE envelope gaskets are primarily used in industries requiring reliable sealing solutions for pipe flanges under moderate pressure conditions. Typical applications include:
- Chemical processing plants where PTFE’s chemical resistance prevents gasket degradation.
- Food and pharmaceutical industries requiring hygienic, non-metallic sealing materials.
- Water treatment and distribution systems utilizing Class 150 and 300 flanges.
- Petrochemical and refining installations needing compliant flanges and gasket systems.
- HVAC and mechanical piping installations demanding standardized flange sealing solutions.
These gaskets provide effective sealing for fluid and gas piping systems with critical requirements on corrosion resistance, mechanical performance, and compliance with European flange standards.
Related Standards
- EN 1759-1:2000 – Circular steel flanges for pipes and fittings, Class designated.
- EN 1759-3:1994 – Circular copper alloy flanges for pipes and fittings.
- EN 1759-4:1997 – Circular aluminum alloy flanges for pipes and fittings.
- EN 12560 Series – Other parts covering different gasket types for class-designated flanges:
- Part 1: Non-metallic flat gaskets with or without inserts
- Part 2: Spiral wound gaskets
- Part 4: Corrugated and filled metallic gaskets
- Part 5: Metallic ring-joint gaskets
- Part 6: Kammprofile gaskets
- Part 7: Covered metal jacketed gaskets
- ISO 6708 – Pipework components - Definition and selection of nominal size (DN).
Adherence to these standards collectively ensures that flange connection elements and gasket materials meet interoperability, safety, and performance standards applicable across European industries.
Keywords: EN 12560-3, PTFE envelope gasket, flange gasket dimensions, Class 150 gasket, Class 300 gasket, IBC gasket, flange sealing standard, non-metallic gasket, PTFE gasket materials, flange compliance EN 1759, gasket marking requirements, industrial flange gaskets.
Frequently Asked Questions
EN 12560-3:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets". This standard covers: This standard specifies the dimensions, types, design, materials and marking requirements of IBC (inside bolt circle) non-metallic PTFE envelope gaskets for use with flanges complying with EN 1759-1, EN 1759-3, EN 1759-4 for Class designation 150 and 300 for sizes up to and including NPS 24 (DN600).
This standard specifies the dimensions, types, design, materials and marking requirements of IBC (inside bolt circle) non-metallic PTFE envelope gaskets for use with flanges complying with EN 1759-1, EN 1759-3, EN 1759-4 for Class designation 150 and 300 for sizes up to and including NPS 24 (DN600).
EN 12560-3:2001 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 12560-3:2001 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 12560-3:2001 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 3: Nichtmetallische Weichstoffdichtungen mit PTFE-MantelBrides et leurs assemblages - Joints pour les brides désignées Class - Partie 3: Joints non métalliques a enveloppe PTFEFlanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets23.040.80Tesnila za cevne zvezeSeals for pipe and h
...
SLOVENSKI STANDARD
01-maj-2002
Prirobnice in prirobnični spoji - Tesnila za prirobnice z oznako Class - 3. del:
Nekovinska tesnila v PTFE ovoju
Flanges and their joints - Gaskets for Class-designated flanges - Part 3: Non-metallic
PTFE envelope gaskets
Flansche und ihre Verbindungen - Dichtungen für Flansche mit Class-Bezeichnung - Teil
3: Nichtmetallische Weichstoffdichtungen mit PTFE-Mantel
Brides et leurs assemblages - Joints pour les brides désignées Class - Partie 3: Joints
non métalliques a enveloppe PTFE
Ta slovenski standard je istoveten z: EN 12560-3:2001
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.
EUROPEAN STANDARD
EN 12560-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2001
ICS 23.040.80
English version
Flanges and their joints - Gaskets for Class-designated flanges -
Part 3: Non-metallic PTFE envelope gaskets
Brides et leurs assemblages - Joints pour les brides Flansche und ihre Verbindungen - Dichtungen für Flansche
désignées Class - Partie 3: Joints non métalliques à mit Class-Bezeichnung - Teil 3: Nichtmetallische
enveloppe PTFE Weichstoffdichtungen mit PTFE-Mantel
This European Standard was approved by CEN on 28 December 2000.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12560-3:2001 E
worldwide for CEN national Members.
Page 2
Contents
Page
Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
3.1 DN. 5
3.2 NPS . 5
3.3 Class . 6
4 Designations. 6
4.1 Range of Class designations . 6
4.2 Range of gasket sizes. 6
4.3 Gasket design . 6
4.4 Information to be supplied by the purchaser . 6
5 Gasket designs. 7
6 Gasket type. 8
7 Dimensions and tolerances. 8
7.1 Dimensions . 8
7.2 Tolerances.9
8 Marking .9
Annex A (informative) A-Deviations. 10
Page 3
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 74 "Flanges and their
joints", the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2001, and conflicting national standards shall be
withdrawn at the latest by July 2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
The annex A is informative and contains "A-deviations".
Page 4
Introduction
EN 12560 consists of seven parts:
Part 1: Non-metallic flat gaskets with or without inserts
Part 2: Spiral wound gaskets for use with steel flanges
Part 3: Non-metallic PTFE envelope gaskets
Part 4: Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
Part 5: Metallic ring-joint gaskets for use with steel flanges
Part 6: Kammprofile gaskets for use with steel flanges
Part 7: Covered metal jacketed gaskets for use with steel flanges
The terminology and definitions in this standard are in accordance with those given in ISO standards.
WARNING Gaskets made to this standard may contain asbestos. Materials containing asbestos may
be subject to legislation that requires precautions to be taken when handling them to ensure that they
do not constitute a hazard to health (see annex A). Attention is drawn to relevant EC directives.
Page 5
1 Scope
This European Standard specifies the dimensions and marking of IBC (inside bolt circle) non-metallic
PTFE envelope gaskets for use with flanges complying with prEN 1759-1:2000, prEN 1759-3:1994 and
prEN 1759-4:1997 for Class 150 and Class 300 for nominal sizes DN 15 and DN 600.
NOTE Dimensions of other types of gaskets for use with flanges complying with
prEN 1759-1:2000, prEN 1759-3:1994 and prEN 1759-4:2000 are given in
prEN 12560-1:2000, prEN 12560-2:2000, prEN 12560-4:2000, prEN 12560-5:2000,
prEN 12560-6:2000 and prEN 12560-7:2000.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this European Standard only when incorporated in it by amendment or revision. For undated
references the latest edition of the publication referred to applies (including amendments).
prEN 1759-1:2000
Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, Class designated
— Part 1: Steel flanges NPS to NPS 24
prEN 1759-3:1994
Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, Class designated
— Part 3: Copper alloy flanges
prEN 1759-4:1997
Flanges and their joints – Circular flanges for pipes, values, fittings and accessories, Class designated –
Part 4: Aluminium alloy flanges
EN ISO 6708
Pipework components — Definition and selection of DN (nominal size) (ISO 6708:1995)
3 Terms and definitions
For the purposes of this European Standard the following terms and definitions apply:
3.1
DN
see EN ISO 6708
3.2
NPS
see prEN 1759-3:1994
Page 6
3.3
Class
see prEN 1759-3:1994
4 Designations
4.1 Range of Class designations
Gaskets shall be designated as suitable for use with one or both of the following Class designations of
flange:
Class 150 ;
Class 300.
4.2 Range of gasket sizes
Gasket nominal sizes shall be designated in accordance with the ranges specified in Table 1
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...