SIST EN 1591-2:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WHVQLOFlansche und ihre Verbindungen - Regeln für die Auslegung von Flanschverbindungen mit runden Flanschen und Dichtung - Teil 2: DichtungskennwerteBrides et leurs assemblages - Regles de calcul des assemblages a brides circulaires avec joint - Partie 2: Parametres de jointFlanges and their joints - Design rules for gasketed circular flange connec-tions - Part 2: Gasket parameters23.040.60Prirobnice, oglavki in spojni elementiFlanges, couplings and jointsICS:Ta slovenski standard je istoveten z:EN 1591-2:2008SIST EN 1591-2:2008en,fr,de01-oktober-2008SIST EN 1591-2:2008SLOVENSKI
STANDARDSIST ENV 1591-2:20021DGRPHãþD



SIST EN 1591-2:2008



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1591-2June 2008ICS 23.040.60Supersedes ENV 1591-2:2001
English VersionFlanges and their joints - Design rules for gasketed circularflange connections - Part 2: Gasket parametersBrides et leurs assemblages - Règles de calcul desassemblages à brides circulaires avec joint - Partie 2:Paramètres de jointFlansche und ihre Verbindungen - Regeln für dieAuslegung von Flanschverbindungen mit runden Flanschenund Dichtung - Teil 2: DichtungskennwerteThis European Standard was approved by CEN on 8 May 2008.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 CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, 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© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1591-2:2008: ESIST EN 1591-2:2008



EN 1591-2:2008 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Symbols and definitions.4 4 Typical gasket parameters for various gasket styles.4 4.1 General.4 4.2 Qmin[L], QSmin[L].6 4.3 Qsmax and PQR.23 4.4 EG.27 Annex A (informative)
Relation between the gasket types and the codes used in the tables.43 Annex B (informative)
Public sources of reliable data.46 Annex C (informative)
Outline of a pre-calculation method of gasket selection.47 Bibliography.48
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 3 Foreword This document (EN 1591-2:2008) 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 December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes ENV 1591-2:2001. EN 1591 "Flanges and their joints — Design rules for gasketed flange connections" consists of the following three parts:  Part 1: Calculation method  Part 2: Gasket parameters  Part 3: Calculation method for metal to metal contact type flanged joint (CEN/TS) The data values given in this European Standard were all determined by the test methods given in EN 13555. The data given was obtained during the PERL Project1) during which the test methods of EN 13555 were assessed for practicability & repeatability by the test laboratories at MPA & CETIM,(see footnotes 2 & 3 of Table A.1). The materials selected for evaluation during that project were those suggested by the organisations taking part in the PERL project. The materials tested in that project, and therefore the data given in this document, must be seen as just a selection of the total range of commercial gasket offerings that are available from the various gasket manufacturers and distributors. The data presented in this document is intended to assist engineers using EN 1591-1 during their preliminary calculations. Other public sources of reliable data are given in Annex B. In all cases it is expected that engineers will obtain from the manufacturer of their choice the data for the gasket intended to be used in the application in hand. The website of the European Sealing Association, www.europeansealing.com, contains links to their members throughout Europe. The importance of using the data for the exact style, make and thickness of gasket intended to be used can be seen from the dispersion of the results between gasket makes within a style and thickness in this document. NOTE The objective for the Publication of this version of EN 1591-2 is to present and make available during the standardization work of CEN/TC 54/TC 74/TC 267/TC 69/TC 269/JWG
tables of values (results of tests) more reliable than those specified in the experimental standard ENV 1591-2:2001. This EN 1591-2 is therefore dedicated to be amended somehow in accordance with the revision in progress carried out by the Joint Working Group on EN 1591-1. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
1) PERL, Pressure Equipment, Reduction of Leak rate: Gasket parameters measurement, RTD Project in the
Framework of the "Competitive & Sustainable Growth" Programme SIST EN 1591-2:2008



EN 1591-2:2008 (E) 4 1 Scope This European Standard details generic gasket parameters for use in EN 1591-1 during preliminary calculations during which the type of gasket to be used in an application is to be decided. Once the gasket type has been decided the parameters for gaskets of that type from the different potential commercial suppliers should be used in further calculations as within a gasket type there will be differences depending upon the supplier. WARNING — For the final calculations using the method given in EN 1591-1 the reader is directed to obtain gasket parameters for the selected generic type of gasket from the intended gasket manufacturer. This is because the data for a generic gasket type will vary between manufacturers. This variation can be seen in the tables of data which are embodied in this document.
2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1591-1:2001, Flanges and their joints — Design rules for gasketed circular flange connections — Part 1: Calculation method EN 13555:2004, Flanges and their joints — Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connections 3 Symbols and definitions For the purposes of this document, the symbols and definitions given in EN 1591-1:2001 and EN 13555:2004 apply. 4 Typical gasket parameters for various gasket styles 4.1 General It shall be noted that the data given in the following tables is only intended to be used in preliminary calculations using EN 1591-1. The data was obtained using the test methods given in EN 13555 during the testing of a selection of a few of the many styles and makes of commercial gasket that are on offer in Europe. For final calculations the user of EN 1591-1 shall contact the gasket supplier of choice and obtain the data for the style and thickness of the gasket intended to be used. A group of end users has derived a pre-calculation method of use of EN 1591-1 that allows gasket selection without any further calculation. This is outlined in Annex C. EN 13555 permits the testing of gaskets sized for either DN40/PN40 or NPS 4 CLASS 300 flanges. All the data values given in this document were obtained from DN40/PN 40 gaskets.
It should
be noted that the rules of EN 13555 regarding QSmax have been adhered to in that where no collapse was found during the QSmax test then the value of QSmax is taken to be that of the surface pressure, Qi , used during the PQR test with the highest surface pressure tabulated. The data in the following sets of tables is presented in three gasket parameter groupings, Qmin[L] and QSmin[L] in the 4.2 set of tables followed by QSmax and PQR in the 4.3 set and then EG in the 4.4 set to allow easy appreciation of how the parameter varies with gasket type. A brief explanation of the parameters in the grouping is given at the start of each set. For more information about the gasket parameters or test methods EN 13555 should be consulted. SIST EN 1591-2:2008



EN 1591-2:2008 (E) 5 Data generated in accordance with EN 13555 should be used together with EN 1591-1 to ensure that a flanged joint is as safe and as tight as required results. It will never be possible for the gasket parameters to be tabulated at all values of the controlling parameters so results at the next “worse” values of those controlling parameters should be used to ensure that the result is conservative.
The various parameters that are obtained from gaskets by the tests detailed in EN 13555 are inter-related in complex ways and the guidance given below is in some respects simplistic in view of those inter-relationships. If further guidance is required it is recommended that the favoured suppliers or manufacturers should be consulted as they will be able to provide all the necessary guidance that is required to aid the selection of an optimised solution for any sealing application. QSmin[L] is influenced by QA, the higher the level of QA achieved on assembly the better. QA will be limited by either the maximum bolt load available, the maximum flange loading that can be permitted or the maximum gasket loading, QSmax, that can be withstood. High values of QSmax are desirable. Where a value of QSmax is not tabulated at the temperature and gasket thickness of interest then the value for QSmax at the next higher values should be used. For secure achievement of a given level of tightness, L, the lower the values of Qmin[L] and QSmin[L] the better. Where data is tabulated for more than one helium pressure then interpolation to deduce a value for the pressure of interest is permitted. Where data is not available for the thickness of interest then data for the next higher available thickness should be used. Low values of Qmin[L] and QSmin[L] are desirable. A low difference between the QSmin[L] values for successive values of L is also desirable as this indicates a low sensitivity to off-loading in service. Within a gasket type, high values of PQR are desirable. Where a PQR value is not tabulated at exactly the required level of temperature, stiffness and surface pressure then the value of PQR at the next level above those required should be used. Low values of EG are desirable. Where a value of EG is not tabulated at exactly the required level of temperature, surface pressure and thickness then the value of EG at the next level above those required should be used. The data in the following sets of tables was generated as the test methods of EN 13555 were evolving. As a consequence the data for some tested gaskets does not in all respects comply with the rules subsequently derived and given in EN 13555. An instance of this is given by PQR in the 4.3 set of tables as values are only given for a stiffness of 500 kN/mm whereas the standard calls for PQR values for a range of stiffness to be determined.
The notes at the end of the 4.3 set of tables of QSmax and PQR give important guidance in the use of the data in that set of tables. For relation between the gasket types and the codes used in the tables see Annex A. SIST EN 1591-2:2008



EN 1591-2:2008 (E) 6 4.2 Qmin[L], QSmin[L] Qmin[L] is the minimum gasket surface pressure on assembly required at ambient temperature in order to seat the gasket into the flange facing roughness and close the internal leakage channels so that the tightness class is to the required level L for the internal test pressure. QSmin[L] is the minimum gasket surface pressure required under the service pressure conditions, i.e. after off loading and at the service temperature, so that the required tightness class L is maintained for the internal test pressure. In the case of the data in Tables 2 to 15 then only values at ambient temperature are given. L is defined in terms of specific leakage rates in Table 1. Additional better tightness classes are introduced as required by continuing the series. Table 1 — Tightness classes Tightness ClassSpecific Leakage Ratemg/(sm) L1,0 ≤ 1,0 L0,1 ≤ 0,1 L0,01 ≤ 0,01
For the Tables 2 to 15 the following marking applies: Qmin[L] or QSmin[L] values for 40 bar without underlining; Qmin[L] or QSmin[L] figures for 10 bar are marked by a dashed line; Qmin[L] or QSmin[L] figures for 80 bar are underlined; Qmin[L] or QSmin[L] figures for 160 bar are double underlined .
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 7 Table 2 — Graphite filled spiral wound gasket with outer ring Qmin[L], QSmin[L] for 40 bar of helium, plus some data for other pressures, at ambient temperature. Code 3-3-100-1,
4,5 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 10 30 35 3-3-100-1 - 10 10 10 10 10 10 10 10 10 10 11 10-1 49 37 57 3-3-100-1 - - 10 43 10 11 10 10 10 10 12 10-2 63 62 71 3-3-100-1 - - - 19 25 10 17 10 10 15 10-3 74 80 87 3-3-100-1 - - -
80 28 32 10 19 28 10-4 98 126 1043-3-100-1 - - - -
- 24 71 40 10-5 - - - - - - - - 10-7 - - - - - - - - 10-8 - - - - - - - - 10-9 - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 8 Table 3 — Graphite filled spiral wound gasket with outer and inner ring Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 3-4-104-1,
4,5 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 - - - - - - - -
100 10 10 10 3-4-104-1 10 10 10 10 10 10 - 10 10 10 10-1 16 32 20 3-4-104-1 - 10 10 10 10 10 - 10 10 10 10-2 25 48 45 3-4-104-1 - 10 10 10 10 10 - 10 10 10 10-3 42
81 83 3-4-104-1 - - 16 18 17 10 - 31 10 15 10-4 81 143 159 3-4-104-1 - - - - 62 35 - 157 26 51 10-5 181 281 3-4-104-1 - - - - - - 83 19810-6 314 3-4-104-1 - - - - - - 298 10-7 - - - - - - - -
10-8 - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 9 Table 4 — Low stress, graphite filled, spiral wound gasket with outer and inner rings Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 3-5-102-1,
4,5 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
- QSmin[L] MPa
Material code
101 - - - - - - - - - 100 10 - 10 - - - - 10 - - - - 10 10-1 10 10 12 3-5-102-1 10 10 10 10 10 10 10 10 10 10-2 10 19 33 3-5-102-1 10 10 10 10 10 10 10 10 10 10-3 2970 174 3-5-102-1 - - - 10 20 10 14 26 168 10-4 140 231 3-5-102-1 - - - - - 82 88 230 10-5 154 290 3-5-102-1 - - - - - 101 123 288 10-6 167 3-5-102-1 - - - - - - 157 10-7 180 3-5-102-1 - - - - - - 192 10-8 194 3-5-102-1 - - - - - - 258
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 10 Table 5 — PTFE filled spiral wound gasket with outer and inner rings
Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code G03,
5,1 mm
L mg/(sm) Qmin[L] MPa QA MPa 60 120 180 240 300 480
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 - - - - - - - - 10-1 30
58 G03 30 30 30 30 30 30 30 10-2 39
74 G03 - 30 30 30 30 30 30 10-3 52
90 G03 - 30 30 30 30 30 30 10-4 69
105 G03 - 43 30 30 30 30 30 10-5 101 125 G03 - - 30 30 30 30 30 10-6 149 166 G03 - - 97 47 48 35 34 10-7 353 428 G03 - - - - - 132 372 10-8 - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 11 Table 6 — Corrugated metal core with graphite facing Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 7-01-104-1,
3,2 mm Code K04,
2,3 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 - - - - - - - - - 100 - - - - - - - - - 10-1 10 7-01-104-1 10 10 10 10 10 10 10
10 K04 - - - - - - - 10-2 11 7-01-104-1 10 10 10 10 10 10 17
11 K04 10 10 10 10 10 10 - 10-3 17 10 20 7-01-104-1 10 10 10 10 10 10 - 10 24 10
10 22 K04 10 10 10 10 10 10 10 - 10-4 21 75 30 7-01-104-1 - 33 13 17 27 24 - 20 32 10
14 28 K04 - 10 10 10 10 11 10 10 10-5 45 104 40 7-01-104-1 -
18 27 46 36 -
28 37 33
41 35 K04 - 25 10 10 10 20 10
10-6 52 165 95 7-01-104-1 - - 32 36 66 68 - 35 116 74
84 68 K04 - - - 10 10 10 - 10-7 57 295 152 7-01-104-1 - - - 73 86 159 - 95 165 243
100 80 K04 - - - - 44 10 - 10-8 306 7-01-104-1 - - - - - - 305
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 12 Table 7 — Metal jacketed gasket with graphite filler Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 6-4-103-1,
3,2 mm No sealing data for H02
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 34 6-4-103-1 - 10 10 10 10 10 10 20 100 55 63 120 6-4-103-1 - - 26 23 21 10 10 20 10-1 96 187 6-4-103-1 - - - - - 56 14 20 10-2 171 287 6-4-103-1 - - - - - - 35 40 10-3 253 6-4-103-1 - - - - - - 133 10-4 - - - - - - - - - 10-5 - - - - - - - - - 10-6 - - - - - - - - - 10-7 - - - - - - - - - 10-8 - - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 13 Table 8 — Graphite covered metal jacketed gasket with graphite filler and outer ring Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 5-5-103-1,
4,5 mm Code H01,
4,8 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 - - - - - - - - - 100 - - - - - - - - - 10-1 -
13 28 5-5-103-1 10 10 10 10 10 10 - 20 10 10 10-2 14 32 73 5-5-103-1 10 10 10 10 10 10 - 32 10 10 10-3 10 H01 10 10 10 10 10 10 -
60 69 5-5-103-1 - - - 33 25 24 22 34 10-4 10 15 H01 10 10 10 10 10 10 -
218 5-5-103-1 - - - - - - 131 10-5 14 23 H01 - 10 10 10 10 10 - 10-6 20 33 H01 - 15 10 10 10 10 10 - 10-7 31 60 H01 - - - 38 32 14 28 - 10-8 50 - - - - - - - 127 - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 14 Table 9 — Graphite sheet with multiple thin metal insertions
Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code A01, 2,1 mm L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 - - - - - - - - 10-1 10 A01 10 10 10 10 10 10 10-2 10 30 A01 - 10 10 10 10 10 10-3 38 72 A01 - - - 37 17 10 10-4 83 120 A01 - - - - - 10 38 10-5 123 157 A01 - - - - - 52 150 10-6 - - - - - - - - 10-7 - - - - - - - - 10-8 - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 15 Table 10 — Graphite sheet with tanged stainless steel core Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 1-5-101-1, 2 mm Code E02,
2,1 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 10 1-5-101-1 10 10 10 10 10 10 10-1 10
10 E02 10 10 10 10 10 10
10 15 27 1-5-101-1 10 10 10 10 10 10 10 10-2 28 47 E02 - - 11 10 10 10
23 41 60 1-5-101-1 - - 10 10 10 10 10 10-3 62 88 E02 - - - - 36 10
49 84 96 1-5-101-1 - - - - 39 10
12 10-4 94 122 E02 - - - - - 10
29
93 139 1-5-101-1 - - - - - 16
95 10-5 124 149 E02 - - - - - 33
117
135 200 1-5-101-1 - - - - - 130
- 10-6 151
- - - - - - - 125
- 10-7 - - - - - - - - 10-8 - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 16 Table 11 — Serrated metal core (Kammprofile) with graphite facing Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 2-5-104-1,
4 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 -
-
29 2-5-104-1 - - - - - - - 10 - 100 - 10 37 2-5-104-1 - 10 - 10 - 10 - 10 - 10 - 10 10 - 10 10-1 10 33 50 2-5-104-1 10 10 30 10 17 10 14 10 10 10 10
23 10 10 10-2 12 45 62 2-5-104-1 12 16 18 32 14 24 13 23 17 10
43 10 20 10-3 28 53 69 2-5-104-1 - 27 29 46 22 35 20 33 24 32 62 18 30 10-4 47 60 76 2-5-104-1 - - 46 31 50 31 46 34 42 82 32 55 10-5 59 71 101 2-5-104-1 - - - 46 66 43 70 48 59 101 77 97 10-6 71 83 126 2-5-104-1 - - - 64 73 86 73 76 121 123 125 10-7 111 110 138 2-5-104-1 - - - - - 108 149 141 170 154 10-8 138
-
160 2-5-104-1 - - - - - 139 - 160 255 10-9 308 2-5-104-1 - - - - - - 316 10-10 - - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 17 Table 12 — Modified PTFE
Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code 1-10-102-1,
2 mm Code 1-10-100-1,
2 mm Code G02,
2,0 mm Code D01,
2,0 mm Code A02,
2,0 mm Code K02,
2,0 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 10
- 1-10-102-1 10 10 10 10 10 10 10 10 - -
10 1-10-100-1 10 10 10 10
10-1 12 12 19 1-10-102-1 10 10 10 10 10 10 10 10 10 - -
10
10 1-10-100-1 10 10 10 10 10 - -
10 10 G02 10 10 10 10 10 10
10 D01 10 10 10 10 10 10
10 A02 10 10 10 10 10 10 10-2 17 16 26 1-10-102-1 11 10 10 10 10 10 10 10 10 - -
10 12 22 1-10-100-1 10 10 10 10 10 10 10 10 10 - -
11 25 G02 - 10 10 10 10 10
10 25 D01 - 10 10 10 10 10
11 A02 - 10 10 10 10 10 10-3 26 21 33 1-10-102-1 - 10
10 10 10 10 10 10 - -
12 17 30 1-10-100-1 10 10 10 10 10 10 10 10 10 - -
27 52 G02 - - 33 13 10 10
22 30 D01 - 10 10 10 10 10
10 15 A02 10 10 10 10 10 10
10 - K02
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 18 Table 12 (continued) L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
10-4 38 31 39 1-10-102-1 - 17 10 10 10 10 10 10 - -
17 42 37 1-10-100-1 10
- 10 10 10 10 10 10 - -
58 83 G02 - - - - 27 10
31 36 D01 - 15 10 10 10 10
12 20 A02 14 10 10 10 10 10
13 10 K02 10 10 10 10 10 10 10 10-5 62 41 1-10-102-1 - - 11 43 10 - -
50 - 1-10-100-1 - - 25
- 10
- - -
94 160 G02
10
-
40 54 D01 - - 33 16 10 10 10
20 58 A02 - - 50 10 11 10 10
17 27 K02 - 16 13 11 10 13 10 10-6 67 1-10-102-1 - - - 64 - -
40 92 K02 - - - - 83 31 65 10-7 - - - - - - - - 10-8 - - - - - - - - SIST EN 1591-2:2008



EN 1591-2:2008 (E) 19 Table 13 — Non-asbestos, fibre based sheet Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature, Code 1-9-101-1,
2 mm Code G01,
2 mm Code E01,
2,1 mm Code D02,
1,9 mm Code B01,
2 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 10 1-9-101-1 10 10 10 10 10 10 100 12 10 1-9-101-1 10 10 10 10 10 10 10 10 10 10 10 10 10-1 10 10 G01 10 10 10 10 10 10
10 10 E01 10 10 10 10 10 10
10 10 D02 10 10 10 10 10 10
10
10 B01 10 10 10 10 10 10
10 20 22 1-9-101-1 - 10 10 10 10 10 10 10 10 10 10 10 10-2 22 24 G01 - 10 10 10 10 10
12 48 E01 - - 15 10 10 10
40 64 D02 - - - 14 10 10
15 25 B01 - 10 10 10 10 10
16 35 43 1-9-101-1 - 10 10 10 10 10 10 10 10 10 10 10-3 40 54 G01 - - 19 10 10 10
56 86 E01 - - - - 22 10
77 92 D02 - - - - 34 10 13
32 42 B01 - - 10 10 10 10
33 57 69 1-9-101-1 - - 20 19 15 10 10 10 10 SIST EN 1591-2:2008



EN 1591-2:2008 (E) 20 Table 13 (continued) L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
10-4 66 68 G01 - - - 19 10 10 10
84 108 E01 - - - - - 10 15
100 111 D02 - - - - - 17 32
47 54 B01 - - 19 10 10 10
60 81 95 1-9-101-1 - - - 40 33 38 17 19 10-5 100 83 G01 - - - - 29 12 14
107 130 E01 - - - - - 18
39
116 134 D02 - - - - - 44 111
60
75 B01 - - - 34 20 10 19
85 112 130 1-9-101-1 - - - - - 33 37 10-6 130 111 G01 - - - - - 79 108
129
- E01
52
-
144
- D02
140 -
98
113 B01
92 109
108 151 1-9-101-1 - - - - - 125 10-7 - - - - - - - - 10-8 - - - - - - - - SIST EN 1591-2:2008



EN 1591-2:2008 (E) 21 Table 14 — Proprietary type of graphite faced Kammprofile with secondary metal to metal seal Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature.
Code F01, 4,1 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160 320
-- QSmin[L] MPa
Material code
101 - - - - - - - - - 100 - - - - - - - - - 10-1 - - - - - - - - - 10-2 - - - - - - - - - 10-3 - - - - - - - - - 10-4 - - - - - - - - - 10-5 - - - - - - - - - 10-6 - - - - - - - - - 10-7 34 F01 - - 34 - - - - 10-8 41 F01 - - 34 - - - - 10-9 47 F01 - - 34 - - - - 10-10 54 F01 - - 45 - - - - 10-11 61 F01 - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 22 Table 15 — Proprietary PTFE/graphite gasket with metal eyelet Qmin[L], QSmin[L] for 40 bar of helium , plus some data for other pressures, at ambient temperature. Code K01, 1,9 mm
L mg/(sm) Qmin[L] MPa QA MPa 20 40 60 80 100 160
-- QSmin[L] MPa
Material code
101 - - - - - - - - 100 - - - - - - - - 10-1 - - - - - - - - 10-2 - - - - - - - - 10-3 - - - - - - - - 10-4 10 10 K01 10 10 10 10 10 10 10-5 14 15 K01 - - 37 22 19 10 12 10-6 28 107 K01 - - - - - 18 56 10-7 106 K01 - - - - - 83 10-8 - - - - - - - -
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 23 4.3 Qsmax and PQR Qsmax is the maximum surface pressure that may be imposed on the gasket at the indicated temperature without collapse or compressive failure of the gasket. PQR is a factor to allow for the effect on the imposed load of the relaxation of the gasket between the completion of bolt up and after long term experience of the service temperature.
Table 16 — Qsmax and PQR (EN 13555 based data) Temperature °C QSmax PQR (Qi) for connection stiffness, Qi in MPa, of 500 kN/mm Material code, initial gasket thickness Non-asbestos fibre based sheet 120 1,0 (120) G01,
2,0 mm 120 1,0 (120) E01,
2,1mm 120 1,0 (120) D02,
1,9 mm 120 1,0 (120) B01,
2,0 mm Ambient 150 0,98 (150) 1-9-101-1,
2 mm 175 120 0,9 (120)
G01,
2,0 mm
120 0,8 (120)
E01,
2,1 mm
80 0,7 (80) D02,
1,9 mm
80 0,8
(80) B01,
2,0 mm 200 60 0,81 (60) 1-9-101-1,
2 mm 250 120 0,9 (120) G01,
2,0 mm
100 0,8 (100) E01,
2,1 mm
80 0,5 (80) D02,
1,9 mm
80 0,6 (80) B01,
2,0 mm
50 0,77 (50) 1-9-101-1,
2 mm Modified PTFE sheet Ambient 60 0,9 (60) 1-10-102-1, 2 mm
50 0,84 (50) 1-10-100-1, 2 mm
120 1,0 (120) G02,
2,0 mm
80 0,9 (80) D01,
2,0 mm
120 0,9 (120) A02,
2,0 mm
40 0,9 (40) K02,
2,0 mm 150 120 1,0 (120) G02,
2,0 mm
40 0,6 (40) D01,
2,0 mm
120 0,6 (120) A02,
2,0 mm
40 0,5 (40) K02,
2,0 mm SIST EN 1591-2:2008



EN 1591-2:2008 (E) 24 Table 16 (continued) Temperature °C Qsmax PQR (Qi) for connection stiffness, Qi in MPa, of 500 kN/mm Material code, initial gasket thickness 175 60 0,5 (60) 1-10-102-1, 2 mm
40 0,41 (40) 1-10-100-1, 2 mm 225 60 0,42 (60) 1-10-102-1, 2 mm
25 0,36 (25) 1-10-100-1, 2 mm
120 0,8 (120) G02,
2,0 mm
40 0,4 (40) D01,
2,0 mm
120 0,5 (120) A02,
2,0 mm
40 0,4 (40) K02,
2,0 mm Serrated metal core [Kammprofile] with graphite facing Ambient 600 1,00 (600) 2-5-104-1,
4 mm
328 1,0 (328) F01,
4,1 mm 300 450 0,94 (450) 2-5-104-1,
4 mm
328 0,98 (328) F01,
4,1 mm 450 400 0,80 (400) 2-5-104-1,
4 mm
328 0,96 (328) F01,
4,1 mm Graphite sheet
with tanged stainless steel core Ambient 200 1,0 (200) E02,
2,1 mm
200 1,0 (200) 1-5-101-1,
2 mm 300 120
1,0 (120) E02,
2,1 mm
140 0,78 (140) 1-5-101-1,
2 mm 400 120
1,0 (120) E02,
2,1 mm 450 120 0,62 (120) 1-5-101-1,
2 mm
SIST EN 1591-2:2008



EN 1591-2:2008 (E) 25 Table 16 (continued) Temperature °C Qsmax PQR (Qi) for connection stiffness, Qi in MPa, of 500 kN/mm Material code, initial gasket thickness Graphite sheet with multiple thin metal insertions Ambient 120 1,0 (120) A01,
2,1 mm 300 120 1,0 (120) A01,
2,1 mm 400 120 0,98 (120) A01,
2,1 mm Graphite covered metal jacketed with graphite filler and outer ring Ambient 120 1,0 (120) H01,
4,8 mm
400 0,98 (400) 5-5-103-1,
4,5 mm 300 120 1
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