EN 12560-1:2001

SLOVENSKI STANDARD
01-maj-2002
Prirobnice in prirobnični spoji - Tesnila za prirobnice z oznako Class - 1. del:
Nekovinska ploščata tesnila z ojačitvijo ali brez nje
Flanges and their joints - Gaskets for Class-designated flanges - Part 1: Non-metallic flat
gaskets with or without inserts
Flansche und ihre Verbindungen - Dichtungen für Flansche mit Class-Bezeichnung - Teil
1: Flachdichtungen aus nichtmetallischem Werkstoff mit oder ohne Einlagen
Brides et leurs assemblages - Joints pour les brides désignées Class - Partie 1: Joints
plats non métalliques avec ou sans insert
Ta slovenski standard je istoveten z: EN 12560-1:2001
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 12560-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2001
ICS 23.040.80
English version
Flanges and their joints - Gaskets for Class-designated flanges -
Part 1: Non-metallic flat gaskets with or without inserts
Brides et leurs assemblages - Joints pour les brides Flansche und ihre Verbindungen - Dichtungen für Flansche
désignées Class - Partie 1: Joints plats non métalliques mit Class-Bezeichnung - Teil 1: Flachdichtungen aus
avec ou sans insert nichtmetallischem Werkstoff mit oder ohne Einlagen
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 12560-1:2001 E
worldwide for CEN national Members.

Page 2
Contents
Page
Foreword . 3
...................................................................................................................................... 4
Introduction
1 . 5
Scope
2 . 5
Normative references
3 . 5
Terms and definitions
3.1 DN. 5
3.2 NPS. 5
3.3 Class . 5
4 Designations . 6
4.1 Range of Class designations. 6
4.2 Range of gasket sizes . 6
4.3 . 6
Gasket types
4.4 . 6
Information to be supplied by the purchaser
5 . 7
Gasket designs and materials
6 . 7
Gasket types
7 Range of nominal sizes. 11
8 Dimensions . 11
8.1 Thickness . 11
8.2 Diameters . 12
8.3 Tolerances. 14
9 Marking. 14
.............................................................................................. 15
Annex A (informative) A-deviations

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 the relevant EC directives.

Page 5
1 Scope
This European Standard specifies the dimensions, types, designation and marking of non-metallic flat
gaskets, with or without insertion, for use with flanges in accordance with prEN 1759-1:2000,
prEN 1759-3:1994 and prEN 1759-4:1994, for Class designations Class 150, Class 300, Class 600 and
Class 900 for nominal sizes DN 15 to 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 1759-4:1997 are given in prEN 12560-2:2000,
prEN 12560-3:2000, prEN 12560-4:2000 and 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, nominal pipe sizes NPS ½ 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 and composite flanges.
prEN 1759-4:1997
Flanges and their joints – Circular flanges for pipes, valves, 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
3.3
Class
see prEN 1759-3:1994
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4 Designations
4.1 Range of Class designations
Gaskets shall be designated as suitable for use with one or more of the following Class designations of
flange:

Class 150;

Class 300;

Class 600;

Class 900.
4.2
Range of gasket sizes
Gasket nominal sizes shall be designated in accordance with the ranges specified in Tables 1, 2 and 3.
4.3 Gasket types
Gasket types as defined in clause 6 and illustrated in Figures 1 and 2 shall be designated as:
— Type FF;
— Type IBC;
— Type TG;
— Type SR.
4.4 Information to be supplied by the purchaser
The following information shall be supplied by the purchaser when ordering gaskets:
a) the number and Part of this European Standard, i.e. EN 12560-1;
b) gasket type designation (see 4.3);
c) nominal size (see Tables 2 or 3, as appropriate);
d) Class designation (see Tables 2 or 3, as appropriate);
e) thickness (see 8.1);
f) material(s) (see clause 5);
Additional information that should be supplied by the purchaser:
g) expected operating conditions for which the gasket will be used and whether the gasket is
required for use with water intended for human consumption (see clause 5).

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NOTE Before ordering a gasket it is recommended that the selection of the gasket type,
material and thickness should be made in consultation with the gasket supplier. The
selection of gasket material type and thickness should take into account the fluid,
the operating conditions, the properties of the gasket material, the type and surface
finish of the flange facing and the flange bolt loading.
EXAMPLE A gasket according to EN 12560-1, full face type (type FF), of nominal size DN 100,
Class 150, 2 mm thickness in expanded graphite, shall be designated as follows:
Gasket EN 12560-1 — FF — DN 100 — Class 150 — 2 mm — expanded graphite.
5 Gasket designs and materials
Gaskets shall be manufactured in a single material or combination of materials and shall be one of the
following designs:
a) single flat sheet; or
b) laminated ply; or
c) moulded.
NOTE 1 The selection of the gasket material should take into account the fluid, the operating
conditions, the properties of the gasket material, the type and surface finish of the
flange facing and the flange bolt loading. It is recommended that selection of
gaskets for any particular application is made in consultation with the gasket
supplier (see 4.4).
Where gaskets come, or are likely to come, into contact with water intended for human consumption, the
materials shall comply with relevant National regulations.
NOTE 2 The purchaser should indicate on the enquiry and/or
...