norme europÉenne 1092-1 en daad stan european...en 10025, hot rol/ed products of...
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EUROPEAN STAN DAAD
NORME EUROPÉENNE
EUROPÂISCHE NORM
CS 23040.60
English version
EN 1092-1
Decemoer 2001
Flanges and ther joints - Crcular flanges for pipes, valves,fittings and accessories, PN designated - Part 1: Steel flanges
Brides et tours assorrolages Brides circulaires oourruees. appareils de robinettone. raccords et accessoires
designees PN Partie 1: Brides en acier
This European Standard was anproved by CEN on 6 July 2001
Fiansche unci ihe Verbindungen Runde Flansche furRohre. Armaturon. Formstucke und Zubehorteile. nach PN
bezeichnet - Teil 1 Stahlflansche
GEN n’embers are bound to comply with the GEN. GENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandara the status of a natronal standard without any alteration. Up-to-date ists and uibliographical references concerning such nationalstanca’ds may be obtained on application to the Management Gentre or to any GEN member.
This European Standard exists in threo official versions (EngliSh. French, German). A version in any other language made by translationonder the responsibility of a GEN member info its own language and notified to the Management Gentre has the same status as the officialversions
GEN members are the national standards bodies of Austria, Belgium. Gzech Republic, Denmark. Finland, France. Germany, Greece.Iceland Ireland, ltaly, Luxembourg. Netherlands, Norway, Portugal. Spain, Sweden, Switzerland and United Kingdom.
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Management Centre: rue de Stassart. 36 B-1050 Brussels
2JC1 GEN All ‘icnts t xOoira!ion fi ar’ t ‘m one h’ am. ‘‘cars ‘esejoo.r’cc’,iae t GEN :iational ‘.terre’s
Rot. No EN 1C02.r 2001 E
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EN 1O921:20O1 (E)
ContentsPage
Foreword 3
Introduction 4
1 Scope 4
2 Normative references 5
3 Terms and definitions 73.1 DN 73.2 PN73.3 maximum aflowable pressure, PS 73.4 maximum atlowable temperature, TS 7
4 Designation 7
5 General requirements 85.1 Flange materials 85.2 Repairs 95.3 Bolting 95.4 Gaskets 95.6 Dimensions 105.8 Spot facing or back facing of flanges 125.9 Tolerances 125.10 Marking 12
Annex A (normative) Bull weld-end preparation 53
Annex B (informative) Material groups 54
Annex C (informative) Approximate masses of flanges and coUars 56
Annex D (informative) Additional materials 64
Annex E (informative) Determination of pIT ratings for flanges using EN materials 65
Annex F (informative) Determination of pIT ratings for flanges using 66ASTM materials
Annex ZA (informative) Clauses of this European Standard addressing essentialrequirements or other provisions of EU Directives 68
Bibliography 70
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EN 1092-1:2001 (E)
Foreword
This document (EN 1090-1:2001) has been prepared by Technical Committee CEN/TC 74Flanges and their joints. the secretariat of which is held by DIN.
This European Standard shali be given the status of a national standard. either by publication ofan identical text or by endorsement. af the latest by June 2002, and conflicting national standardsshali be withdrawn at the latest by June 2002.
This document has been prepared under a mandate given to GEN by the European Commissionand the European Free Trade Association, and supports essential requirements of EUDirective(s).
For relationship with EU Directive(s). see informative Annex ZA, which is an integral part of thisdocument.
According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard : Austria, Belgium, CzechRepublïc, Denmark, Finland, France, Germany, Greece, Iceland. Ireland, Italy, Luxembourg,Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
EN 1092 consists of the following four parts:
Part 1: Steel flanges;
Part 2: Gast ron flanges;
Part 3: Gopper alloy flanges:
Part 4: Aluminium alloy flanges.
This standard includes one normative and eight informative annexes.
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EN 1092-1:2001 (E)
Introduction
When Technical Committee. CENÎTC 74, commenced its work of producing this EuropeanStandard t took as its basis, the International standard, ISO 7005-1. Steel flanges.
In taking this decision, CEN/TC 74. agreed that this standard would differ significantly from the150 standard in respect of the following:
a) Whereas 50 7005-1 included in its scope both the original DIN based flanges andalso the original ANSI/ASME based flanges. EN 1092-1 contains only the DIN basedflanges. CEN/TC 74 has produced a separate seres of standards. prEN 1759-1:2000.prEN 1759-3:1994 and prEN 1759-4:1997, dealing with the ANSI;ASME based flanges intheir original Class designations:
b) The opportunity was taken to revise some of the technical requirements applicable tothe DIN origin flanges.
Consequently, whilst the mating dimensions, the flange and facing types and designations arecompatible with those given in 150 7005-1, t is important to take account of the followingdifferences which exist in EN 1092-1:
1) The p/T ratings of this standard have been reduced in many cases by either limiting thelower temperature ratings which can no onger exceed the PN value, or by increasing therate at which allowable pressures shall reduce with increase in temperature:
2) In addition to the range of PN 2,5 to PN 40 DIN origin flanges contained in the ISOstandard, EN 1092-1 also includes PN 63 and PN 100 flanges;
3) This standard specifies grades of European steels similar to those specified in 1507005-1, but in addition permits the use of those grades of ASTM steels which arespecified in the ISO standard for use with the ANSI/ASME based flanges;
4) This standard gives an informative annex concerning requirements of EU Directives.
1 Scope
This European Standard for a single series of flanges specïfies requirements for circular steelflanges in PN designations PN 2.5 to PN 100 and nominal sizes from DN 10 to DN 4000.
This standard specifies the flange types and their facings, dimensions. tolerances. threading. boltsizes. flange jointing face surface finish. marking. materials. pressure/ temperature ratings andapproximate flange masses.
This standard does not apply to flanges made from bar stock by turning, or to flanges of types 11,12 and 13 made from plate material.
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EN 1092-1:2001 (E)
2 Normative references
This European Standard incorporates by dated or undated reference provisions from otherpubIicatons. These normative references are cited at the appropnate places in the text and thepubIicatons are listed hereafter. For dated references, subsequent amendments to or revïsïonsof any of these publications appy to this European Standard only when incorporated in t byamendment or revision. For undated references the atest edition of the publication referred toappiies (inciuding amendments).
EN 764, Pressure equipment - Terminology and symbols - Pressure. temperature. volume
EN 1333, Pipework components - Definition and selection of PN
EN 1708-1 We/ding - Basic weld joint details in steel - Part 1: Pressurized components
EN 10025, Hot rol/ed products of non-alloy structural steels - Technical delivety conditions
prEN 10028-2:2000. Flat products made of steels for pressure purposes - Part 2: Non alloy andalloy steels with specified elevated temperature properties
prEN 10028-3:2000, Flat products made of steels for pressure purposes - Part 3: Weldable finegrade steels, normalised
prEN 10028-4:2000, Flat products made of steels for pressure purposes - Part 4: Nickel alloysteels with specified low temperature properties
EN 10028-7, Flat products made of steels for pressure purposes - Part 7: Stainless steels
EN 1021 3-2, Technica/ delivery conditions for steel castings for pressure purposes - Part 2: Steelgrades for use at room temperature and elevated temperatures
EN 10213-3, Technical delivery conditions for steel castings for pressure purposes - Part 3: Steelgrades for use at low temperatures
EN 10213-4, Technical delivery conditions for steel castings for pressure purposes - Part 4:Austenitic and austenitic-ferritic steel grades
EN 10222-2, Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels withspecified elevated temperature properties
EN 10222-3, Steel forgings for pressure purposes - Part 3: Nickel steel w/th specified lowtemperature properties
EN 10222-4. Steel forgings for pressure purposes - Part 4: Weldable fine gram steels with highproof strength
EN 10222-5. Steel forgings for pressure purposes - Part 5: Austenitic, martensitic and austeniticferritic stainless steels
prEN ISO 9692-1:2000, Welding and all/ed processes - Recommendation for joint preparation -Part 1: Manual metal-arc we/ding. gas-shielded metal-arc welding and gas welding of steels(/80 DIS 9692-1:2000)
EN ISO 9692-2, We/ding and allied processes - Joint preparation - Part 2: Submerged arcwe/ding of steels (ISO 9692-2:1998)
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EN 1092-1:2001 (E)
EN ISO 6708, Pipe components - Definition of DN (nominal size) (ISO 6708:1995)
SO 7-1 Pipe threads where pressure-tight joints are made on the threads —Part 1: Dimensions, tolerances and designation
150 7-2, Pipe threads where pressure tight joints are made on the threads —Part 2: Verification by means of limit gauges
50 887, Plain washers for metric boits, screws and nuts - General plan
ASTM Al 05/Al 05M. Forgings. Carbon Steel. for Piping Components
ASTM Al 82/A 1 82M. Forged or Rol/ed Al/oy-Steel Pipe Flanges, Forged Fittings, and Valves andParts for High- Temperature Service
ASTM A203/A203M, Pressure Vessel Plates. Ailoy Steefl Nickel
ASTM A204/A204M, Specification for pressure vessel plates, alloy steel, molybdenum
ASTM A21 6/A21 6M, Steel Castings, Carbon Suitable for Fusion We/ding for High-TemperatureService
ASTM A217/A217M, Steel Castings, Martensitic Stainiess and Alloy, for Pressure-Containing PartsSuitable for High- Temperature Service
ASTM A240/A240M, Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Pia te. Sheet,and Strip for Pressure Vessels
ASTM A325, High-Strength Boits for Structural Steel Joints
ASTM A350/A350M, Forgings, Carbon and Low-Alioy Stee4 Requiring Notch Toughness Testingfor Piping Components
ASTM A35 1 /A351 M, Castings, Austenitic, Austenitic-Ferritic (Duplex) for Pressure-Containing Parts
ASTM A352/A352M, Steel Castings, Ferritic and Martensitic. for Pressure-Containing Parts Suitablefor Low-Temperature Service
ASTM A387/A387M, Pressure Vessel Plates, Alloy Steel, Chromium-Moiybdenum
ASTM A51 5/A51 5M, Pressure Vessel Plates, Carbon Steel. for Intermediate and HigherTemperature Service
ASTM A51 6,A51 6M. Pressure Vessel Piates, Carbon Steel. for Moderate and Lower-TemperatureService
ASTM A5371A537M, Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel
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EN 1092-1:2001 (E)
3 Terms and defiriitions
For the purposes of this standard the foflowng terms and definitions apply:
3.1DN
EN ISO 6708
3.2PNsee EN 1333
3.3maximum aflowable pressure, PSmeans the maximum pressure for which the equipment is designed, as specified by theequipment man ufacturer
3.4maximum allowable temperature, TSmeans the maximum temperature for which the equipment is designed. as specified by theequipment manufacturer
4 Designation
4.1 General
Table 1 specifies the flange types and ancillary components.
Figures 1 and 2 show flange types and ancillary components with the relevant flange typenumbers. Flanges shail be denoted with “flange type and the “flange number”. Ancillarycomponents shall be denoted with ancillary component type and the type number.
Figure 3 shows flange facing types, which may be used with the flanges or components shown infigures 1 and 2. Flange facings shall be denoted with type” and the relevant symbol.
The range of DN. applicable to each flange type and to each PN, shall be as given in table 3.
4.2 Standard designation
Flanges and ancillary components in accordance with this standard shalt be designated with thefollowing:
a) Designation. eg. flange. lapped end or collar:
b) Number of this standard. EN 1092-1:
c) Number of flange type in accordance with figures 1 and 2:
d) Type of flange facing in accordance with figure 3:
e) DN (nominal size):
f3 PN designation:
g) Neck thickness S (only for types 11 and 343:
h) For type 13 flanges type of thread (R or R3;
3 Bore diameter (for sizes greater than DN 600>:
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EN 1092-1:2001 (E)
B (only for types 01 12 and 32):
B (only for type 02):
8 (only for type 04):
j) Either the symbol or the number or the grade of the material (see tabi es 5a and 5b):k) any heat treatment requïred:
i) material certificate, if required (see 51).
EXAMPLE 1Designation of a flange type 01 with facing type A and nominal size DN 800. of PN 6 with borediameter B = 818 mm. made of material with the symbol S235JR.
Flange EN 1092-1/01 NON 800/PN 6/818/S235JR
EXAMPLE 2Designation of an ancillary component type 32 with facing type A of nominal size DN 400, PN 10and made of material with the symbol S235JR.
Collar EN 1092-1/32 A/DN 400/PN 10/S235JR
EXAMPLE 3Designation of a flange type 02 with facing type A of nominal size DN 400, PN 10 and made ofmaterial with the number 1 0038.
Flange EN 1092-1/02 NON 400/PN 10/1.0038
EXAMPLE 4Designation of a flange type 11 with facing type B2 of nominal size DN 200, PN 100 and withneck thickness, S= 10 mm, made of material with the symbol l3CrMo4-5.
Flange EN 1092-1/11 B2/DN 200/PN 100/10/l3CrMo4-5
5 General requirements
51 Flange materials
Flanges shali be manufactured from materials given in tables 5a and 5b (see also annex D). Fortype 11, 12 and 13 flanges, the manufacture shall be from forgings, For type 21 flanges themanufacture shall be from forgings or steel castings.
The flange manufacturer shali provide documentation to ensure traceability of material. Anequipment manufacturer may require a certificate in accordance with EN 10204 which is suitablefor the category of equipment to which the flange is fitted.
NOTE 1 The matenals given in tab1es 5a and 5b (see also annex D) are tabulated n groups having the sarne o Tratings as given in tables 15. 16. 17.18,19 and 20 (seearnex B.
NOTE 2 The materials of ancitary components are not within toe scope o this standard.
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EN 1092-1:2001 (E)
5.2 Repairs
Where not otherwise prohibited by the applicable material standard, repairs by welding arepermltted when there is a proven method. All weldlng shail be carried Out in accordance with awritten procedure.
NOTE Far approval of weding procedures. see EN 288-1. For approua af welders. see EN 287-1.
5.3 Bolting
Flanges shall be suitable for use with the number and size of bolting as specified in tables 6 to13. The bolting shali be chosen by the equipment manufacturer according to the pressure.temperature. flange material and gasket so that the flanged joint remains tight under theexpected operating conditions. For selection of bolting. see EN 1515-1 for combination of thematerials of flanges and bolting see prEN 1515-2:1994. for information.
5.4 Gaskets
The various gasket types. dimensions, design characteristics and materials used are not withinthe scope of this standard. Dimensions of gaskets are given in EN 1514-1 to EN 1514-4.
5.5 Pressure/temperature (p)T) ratings
The pIT ratings of flanges are given in tables 15, 16, 1718, 19 and 20.
The p/T ratings indicate the relationship between the maximum allowable pressure PS and themaximum allowable temperature.
The p/T ratings shall apply only for flange types 05, 11, 12, 13 and 21 having nominal sizes up toand including DN 600. The piT ratings of all other flanges shall be calculated or subject to specialexperience.
NOTE 1 The rules for the determination of p/T ratings of the above tables are given n annexes E and F.
NOTE 2 For the materiai groups 1 OEO to 1 6E0 (austenWc steels) tables 17 and 18 shouid be used as follows:
table 17 shouid be chosen for applicadon n cases where the flange deformahon has to be strictly limited;
table 18 shouid be chosen in all cases where a small amount of plastic deformaflon of the fianges can beconsdered acceptable.
NOTE 3 Linear nterpolation s permitted for intermedate temperatures.
For interpolation between (-10 C to 50 G) and 100 0, 20 C shall be used.
NOTE 4 The relevant pressures and temperatures are those of the fu d n the ppework system.
9
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EN 1092-1:2001 (E)
5.6 Dimensions
5.6.1 Flanges
The dimensions of flanges shaN be as given in tables 6 to 13 according to the PN designation.Dimension G may be vaned from the given value (see NOTE 1) which is a maximum limit. The
neck thickness, S is a minimum value, selected according to pipe thicknesses given in ISO 4200(see NOTE 2).
NOTE 1 The centre portion of the face of a flange type 05 need not be machined provided that the diameter of theunmachined portion does not exceed the recommencied diameter for 0 given in tables 6 to 13,
NOTE 2 When requested by the pressure equipment manufacturer, neck thicknesses, other than these given in therelevant tables. may be supplied by agreement with the flange manufacturer.
NOTE 3 A summary of the vanous types of flanges specified is given in table 3 showing the nominal sizes applicableto each type and to each PN.
NOTE 4 Diameters N1. N and N3 of fiange types 11. 12, 13, 21 and 34 are the theoretical maximum values permittingthe use of ring spanners or the application of normal series plain washers without any additional machining, eg. spotfacing (see 58).
NOTE 5 The bore diameters of flanges type 21 are not specified in this standard, the effective bore diameters areusually given in the relevant component standard(s).
NOTE 6 Approximate masses of flanges are given in annex c.
NOTE 7 The flange thicknesses for flanges type 05, 11 12, 13. 21 and PN 6, PN 10. PN 16, PN 25 have an unusualstop at DN 600/DN 700. This is based on a change at some flange thicknesses up to and inciuding DN 600 to meet thepressure temperature ratings (limited to DN 600). The flange thicknesses for fianges DN 700 and above are the sameas they are given in the documents of origin (DiN. BS NFE, EN etc.). They will be updated in future based en theflange calculation method as far as the corresponding work items of CEN/TC 74/WO 10 gives sufficient resuits.
NOTE 8 For fianges type 21 dimensions A. N and R1 are nominal values and are included for guidance only.
5.6.2 Hubs
The hubs of flange types 12 and 13 shali be either:
a) parallel: or
b) taper wïth an angle not exceeding 70 on the outside surface for forging or castingpurposes.
Details of the weld end preparation for flanges type 11 and ancillary components type 33 shall beas given in annex A.
5.6.3 Threaded flanges
5.6.3.1 The threads of flanges type 13 shall be parallel (symbol R) or tapered (symbol R0) inaccordance with ISO 7-1. Gauging shall be in accordance with ISO 7-2.
NOTE Para ei threads wih be supplied unless otherwise requested by the equipment manufacturer.
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EN 1092-1:2001 (E)
&6.32 The thread shali be concentric wth the axis of the flange and misalignments shafl notexceed 5 mm per metre,
Flanges type 13 shail be manufactured without a parallel counterbore. but to protect the threadthey shail be chamfered to the major diameter of the thread at the hubbed side of the flange at anangie between 30 and 50 to the axis of the thread. The chamfer shall be concentric with thethread and shall be included in the measurement of the thread length provided that the chamferdoes not exceed one pitch in ength.
56.4 Bolt holes
Bolt holes shall be equally spaced on the pitch circle diameter. In the case of flanges type 21they shall be positioned such that they are symmetrical to the principal axes and such that noholes fall on these axes .e. positioned “offcentre”. see figures 5 to 12.
5.6.5 Lapped joints
The dimensions of lapped joints to be used with flanges. type 02 and type 04. are specified intables 7 to 11.
For ancillary component type 33. the thickness of the lapped end at the facing shall be not lessthan the specified wall thickness of the pipe used.
5.7 Flange facings
5.7.1 Types of facings
The types of flange facings shali be as given in figure 3 and their dimensions shali be as given infigure 4 and table 4.
For facings types B, D, F and G. the transition from the edge of the raised face to the flange shallbe:
a) radius; or
b) chamfer
at the choice of the flange manufacturer.
5.7.2 Jointing face finish
5,7,2.1 All flange jointing faces shall be machine finished and shall have a surtace finish inaccordance witb the values given in table 2 when compared with reference specimens by visualor tactile means.
NOTE t s not ntended that nstrument rneasurements be taken on the faces themseves: the R and R vaues asdef red n EN ISO $287 relate to the reference specimens.
5.72.2 For flanges with facing types A. Bi. E and F. turning shall be carried Out with a roundnosed tool in accordance with table 2.
5.7.2.3 Flanges PN 40 shall have type B1 facings and flanges PN 63 shail have type B2factngs. unless otherwise agreed in the order.
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EN 1092-1:2001 (E)
5.8 Spot facing or back facing of flanges
Any spot facing or back facing shall not reduce the flange thickness to less than the flangethickness specified. When spot facing is used. the diameter shall be large enough toaccommodate the outside diameter of the equivalent normal series of washers in accordancewith lSO 887 for the bolt size being fitted. The bearing surfaces for the bolting shall be parallel tothe flange face within the limits given in table 14, When a flange is back faced a minimum filletradius, R2 (see figure 13) in accordance with table 21 shall be maintained.
5,9 Tolerances
Tolerances on dimensions of flanges shall be as given in table 14.
5.10 Marking
5,10,1 General marking requirements
All flanges, other than type 21 flanges, shall be marked as follows:
a) Flange manufacturer’s name or trade mark, e.g. XXX;
b) Number of thïs standard, Le. EN 1092-1;
c) Flange type number, e.g. 11;
d) DN, e.g. DN 150;
e) PN designation, e.g. PN 40;
f) Neck thickness (S), if not to this standard;
g) For EN materials — either the symbol or the number or the grade of the material. e.g.S235JR;
For ASTM materials - the material grade, preceded by the specification number wherenecessary, e.g. WO 4;
h) Oast number of melt identification or suitable control number traceable to the castnumber, eg. 12345, when test certification is required.
EXAMPLE XXX/EN 1092-1/1 1/DN 150/PN 40/S235JR/1 2345
It a flange is too small to enable all the markings required then the minimum marking requiredshall be:
a) Flange manufacturer’s name or trade mark;
b) letters “EN”;
e) PN designation e.g. PN 40:
g) either the symbol or the number or the grade of the material:
h) cast number or melt identitication or suitable control number.
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EN 1O921:2OO1 (E)
5iO2 Stamping
Where stee’ stamps are used, the marking shail be positioned on the outer rim of the flange.
NOTE t shou;d be ensured that stee’ stamp markngs are not liable to cause cracks in the flange materiaL
5iO3 Declaration of compliance
The marking EN 1092-1. together with the flange manufacturers name or trademark on or inrelation to a product. represents the flange manufacturers declaraton of compliance to thisstandard. i.e. a claim by or on behalf of the flange manufacturer that the product meets therequirements of this standard.
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EN 1092-1:2001 (E)
Ik
Tyoe 01Pate flange for weldng
î1 $! 1 [1
i:j
_______________
Type 02Loose pate flange with weld-on collar (seetype 32) or lapped ppe end (see type 33)
1
Type 04Loose pate flange(see type 34)
with weld-neck collarType 05Blank hange
Type 1 1Weld-neck flange
Type 13Hubbed threaded flange
Type 12Hubbed s)Ip-on (lange for weldng
Type 21lntegral flange
NOTE These sketches are diagrammatic only. in parhcular no deta) s shown for the mating surfaces (see figure 3).
Figure 1 - Flange types
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EN 1092-1:2001 (E)
Table 1 - Types of steel flanges and ancillary comporients
Type No Description
01 Plate flange for welding
02 Loose plate flange with weld-on plate coflar or for lapped pipe end
04 Loose plate flange with weld-neck collar
05 Blank flange
1 1 Weld-neck flange
12 Hubbed slip-on flange for welding
13 Hubbed threaded flange
21 Integral flange
32 Weld-on plate collar
bLapped pipe end
bWeld-neck collar
Flange type 21 is an integral part of some other equipment or component.
bAncillary components type numbers 32 and 33 are for use with type 02 flanges
and type number 34 for use with type 04 t langes.
NOTE Type numbers have been made non-consecutive to permit possible future addtions.
Type 32Weld-on collar plate
Type 33Lapped pipe end
Type 34Weld-neck coflar
NOTE These sketchas are dagrammatic only.
Figure 2 - Ancillary components Types 32 to 34
2: YJAi LJ L
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EN 1092-1:2001 (E)
Type A Type 8 Type C Type DFlat face Raised face (Bi and Tongue Groove
82)
Type E Type F Type G Type HSpigot Recess 0-ring spigot 0-ring groove
NOTE 1 The transition from the edge of the raised face to the flange face may be by radus or chamfer for types B. D.F and G on)y (see 57.1).
NOTE 2 81 and B2 are rased face (type 8 for dfferent apphcations see 5.7.2.2. 5.7.2.3 and table 2.
NOTE 3 For the dimensions of flange facings. see figure 4 and tab(e 4.
Figure 3 - Flange facing types
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EN 1092-1:2001 (E)
Table 2 Surface finish for jointing faces
. Method ofFacing types Rad ius of tool nose R Rmachining 1
mm jm
min, min. max. min. max.
A, Bib,
E, FTurningC tO 3.2 12,5 12,5 50
B2 . D. 0.Turning
G- 0,8 3.2 3,2 12,5
aR and R are defined in EN ISO 4287.
bTypes Bi and B2 are raised face (type B) flanges with different specified surface
roughness values for the following appications:
Bi for PN 2,5 up to PN 40:
B2 for PN 63 and PN 100.
The term turning inciudes any method of machine operation producing either serratedconcentric or serrated spiral grooves.NOTE For certain appiications. eg. 10w temperature gases. 1 may be necessary to stipulate closer control to thesurface finish.
17
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EN1O
921:
2OO
1(E
)
Tab
le3
—S
ynopti
cta
ble
DN
0100
30000
)00
)()Q
QQ
ri-
TkI
loo
‘D
00
00
00
00
00
0,ingetpe
ne
-tnoN
alo
c’4
PNIi
11—
————
e-U
seP
N6
-
n2
,5X
XX
XX
76
XIX
IXIX
IXIX
XX
XLX
IXIX
XX
XX
XX
xx8
—U
seP
N4O
--4
4—
Usa
PN
16—
16*--
JJse
PN
40-
xlxlxlx
lxjx10
25—
Use
PN
40
—,-
NR
iL
111i
114
0X
IXIX
IXIX
IXX
XX
XX
XX
XX
XX
XX
X12
63
UseP
NlO
O)x
xx
xx
xx
xx
xx
13100
XX
XX
XX
XX
XX
XX
XX
XX
XX
XT
ype
01
76
t
xIxtxx
IxIxx
xxxx
x
Typ
es02
and
3233
xx
xxx
xx
x
Types
04
and
34
810
—U
seP
N40--
*6—
Use
PN
16—
’>
>>
916
<—
Use
PN
40
--xIx
IxIxxI
x10
25
—U
seP
N40--
4
1140
XIX
jXX
IXIX
XX
XX
IXIX
XX
XX
XX
XX
810
—U
seP
N4
0--
,—
Use
PN
16—
*x
xx
x
916
*—
Use
PN
40—
xIxxjx
Ixlx
1025
*—U
seP
N4O
---*
1140
x1xIxl
xIxxIx
IxIxIx
Ix1x
(con
tinu
ed)
xx
xx
xx
xx
18
-
Tab
le3
(con
tinue
d)
EN
1092
-1:2
001
(E)
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xx
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76
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20
-
EN 1092-1:2001 (E)
Type A: Flat face Type B: Raised face (Bi and B2)
f2 [1
_J1 4
000
f2
Type C: Tongue Type D: Groove
Type E: Spigot Type F: Recessc
Type G: 0-ring spigot Type H: 0-ring groove
NOTE 1 Dmenson C ncludes the raised face thckness.NOTE 2 Cross sechon d ameter of the O-nng is 2 R.
Figure 4 - Flange facing (dimensions see table 4)
21
-
EN
1092
-1:2
0Q1
(E)
Tab
le4
-F
lang
efa
cing
dim
ensi
on
s
PN2
5
mrT
PN6
PNto
PN16
PN25
jPN
40jP
N63
PN10
0
mrr
mm
1m
m1
mm
1m
mm
mm
mm
m
tt
tw
Use
PN10
0dm
enso
ns
mm
mm
mm
7
mm
mm
mm
rm
45
H
40 45 58 68 78 88 102
122
138
162
188
218
285
345
410
4,0
2,0
158
188
212
268
320
378
162
188
218
278
335
395
DN
10 15 20 25 32 40 50 65 80 100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
2200
2400
600
2800
3000
3200
3400
3600
3800
4000
162
188
218
285
345
410
162
188
218
285
345
410
2434
3523
2939
4028
3650
5135
4357
5842
5165
1650
6175
7660
738/
88/2
9510
911
094
106
120
121
105
129
149
150
128
155
175
176
154
183
20’l
234
182
239
259
260
238
292
312
313
291
343
363
364
342
41
35 40 50 60 70 80 90 110
128
148
1/8
202
258
31?
365
415
465
520
5/0
670
7/5
880
980
1080
1295
1510
1710
1920
2125
2335
2545
2750
2960
3160
3370
3580
3790
50
4,5
25
2
158
188
212
268
320
370
430
482
532
585
685
800
905
1005
1110
1330
153k
1760
1060
2170
2370
2570
2780
3000
3210
We
PN6
dIn1
Gns
ons
1280
1480
1690
1890
2090
2295
2495
2695
2910
3110
3310
3510
3720
3920
4120
438
490
550
610
725
795
900
1000
1115
1330
1530
1750
1950
2150
450
505
555
615
720
820
930
1030
1140
1350
1560
1780
1985
2210
465
535
560
615
735
465
535
560
615
735
840
960
1070
1180
1380
465
535
560
615
395
421
422
394
44/
473
414
446
497
523
524
496
273,
554
957
557
654
855
5,0
3,0
649
675
676
648
751
777
778
750
856
882
883
855
961
987
988
260
1062
1092
1094
1060
1262
1292
1294
1260
6,5
6,0
4,0
1462
492
1494
40
028
416
6216
9216
9416
6018
6218
9218
9418
6020
6220
9220
94?O
tO
22
-
EN
1092
-1:2
001
(E)
Tab
le5a
-M
ater
ials
-EN
Forg
ings
Cas
tings
Hot
roll
edpro
duct
s
Gro
up
—S
ym
bol
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nd
ard
Mat
eria
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ym
bol
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ard
Mat
eria
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bo
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tandar
di
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mb
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1002
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1002
51.
003?
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SJR
G2
EN
1002
51
00
38
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JRG
2E
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025
3.00
382E
0-
--
GP
24O
GR
EN
1021
3-2
1062
1-
3E0
P?4
50
HE
N10
222-
21.
0352
GP
24O
GH
EN
1021
3-2
10
61
9P
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EN
1002
8-2
1.04
253E
1P
280(,
[lE
N10
222-
21
04
26
P29
5GH
EN
100282
1.04
814E
01
lMo3
EN
1022
2-2
15
44
5G
2OM
05E
N10
213-
215419
lOM
o3E
N10
(328
21
5415
5E0
l4C
rMo4
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N10
222-
21,
7335
G17
CrM
o5-5
EN
1021
3-2
1.73
57l3
CrM
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EN
1002
8-2
173
306F
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CrM
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1022
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17383
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6217
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EN
1021
3-3
1.11
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10
02
83
1.04
88-
--
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10
21
33
1.62
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EN
b00283
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49
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1022
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EN
1022
2-3
1.62
17-
--
llM
nN
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EN
1002
8-4
162
1212
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EN
1022
2-3
1.56
37-
--
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i14
EN
1002
8-4
156
37E
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222-
31.
5680
--
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41.
5680
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31.
5662
--
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EN
1002
8-4
1.56
E?
8E0
--
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EN
1008-3
104
868
Fl
--
--
--
P35
5NE
N10
028-
31.
0562
8E2
P285
N11
EN
1022
4-4
1.04
87-
--
P27
5NH
EN
1002
83
1.04
878E
3P
3S5N
HE
N10
222-
41.
0565
--
-P
355N
HE
N10
028-
31
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OEO
X20
CM
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222-
21.
4922
GX
23C
rMoV
12-1
EN
1021
3-2
1.49
31-
IOE
OX
2CrN
O8-
9E
N10
222-
51.
4307
GX
2CrN
O9-
11E
N10
213-
41.
4309
X2C
rNrI
8-9
EN
1002
8-7
143
0610F
lX
2C
rNN
l810
EN
1022
2-5
1.43
11-
--
X2
CrN
N1
8-l
0E
N10
028-
?1.
4311
11E
OX
5CrN
vIB
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EN
1022
2-5
1.43
01G
X5C
rN11
9-lO
EN
1021
3-4
1.43
08X
5CrN
O8-
10E
N10
028-
71
4301
l2E
OX
OC
rNiT
i18
10E
N10
222-
51.
4541
--
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6CrM
TO
8-10
EN
100i3
71.
4541
--
--
GX
5CrN
Nb1
9-11
EN
1021
3-4
1.45
52X
6C
rNN
b1
8-l
0E
N10
028-
71
4550
X2C
rNM
ol7-
12-2
X?C
rNM
oN1
7-1
1-2
X5C
rNM
o17-
12-2
X6
CN
Mo
T17
-12-
EN
1022
2-5
EN
1022
2-5
EN
1022
2-5
EN
1022
2-5
1.44
041.
4406
1.44
011.
4571
GX
2CrN
1M01
9-11
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GX
5CrN
iMo1
9-1
1-2
GX
5CrN
1MoN
b19-
11-
2G
X2C
rNM
oCuN
25-6
-3-3
GX
2CrN
1MoN
26-7
-4
EN
1021
3-4
EN
1021
3-4
EN
1021
3-4
EN
0213
-4E
N10
213-
4
1.44
09
1.44
08
1.45
811.
4517
14
46
9
X2C
rNM
ol7
-12
-2
X5C
rNM
o17-
12-2
X6C
rNM
oT0
7-1
2-2
X6C
rNtM
oNb1
7-12
-2
EN
1002
87
EN
1002
8-7
EN
1002
8-7
EN
1002
8-7
1.44
04
1.44
011
4571
145
80
1 3E
013F
l14
E0
1 SF
0
16E
0
23
-
EN
1092
-1:2
001
(E)
Tab
le5b
-M
ater
ials
-A
STM
Cas
ting
Gra
de
Spe
cifr
cati
onan
dg
rad
e
WCE
3
Sta
ndar
d
For
ging
Gra
de
AS
TM
A1O
5A
STM
A35
0LF
2
AST
MA
350
Mat
ena
grou
p
101
1C2
1 C3
104
1 C5
107
10
91010
1013
1C14
2C1
2C2
203
204
2C5
206
20
7
LF3
Sta
ndar
d
AST
MA
16
AS
1M
A16
AST
MA
JS?
AS
1M
A35?
AST
MA
?17
AST
MA
3?5
AS
TM
A21
7
AST
MA
217
AS
TM
A21
7
AS
IMA
?17
AS
ÎMA
217
AS1
’MA
351
AST
MA
J51
AS
TM
A3S
1
AST
MA
351
wcc
LC2
LC
3L
CC
LC
B
WC
1LC
1
WC
4>,
WC
5
WC
6
WC
9
Gb
Cl
2C
F8,
CF
3
CF
8M,C
F3t
LF1
F1
AST
MA
350
AS
TM
A18
2
AST
MA
182
AST
MA
182
F2 F11
,F
12
Sta
nd
ard
ÂS
TM
515
AST
MA
516
AST
MA
537
AST
MA
203
AST
MA
203
AST
MA
515
AST
MA
516
AST
MA
515
AST
MA
516
AS
IMA
?Ot
AST
MA
204
AST
MA
381
AST
MA
387
ASI
MA
40
AST
MA
240
AST
MA
240
AST
MA
182
AST
MA
182
AST
MA
182
AST
MA
182
F22 F5,
F5A
F9 F30
4,F
304H
Pla
te
Gra
de
70 70 CL
I
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A1D
r65 60 60 60 A
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C 11C
12
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12
304,
304H
316
317
316H
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6LS
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‘347
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30
95
31
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AST
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182
AST
MA
182
CH
8,C
H2O
CK
2O
F31
6,F
316H
F30
4L,
F31
6L”
AST
MA
182
AST
MA
182
AST
MA
182
F32
1’F
321H
F34
7,F
347H
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348’
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348H
F31
0
AST
MA
240
AST
MA
240
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MA
240
AST
MA
240
Per
rnis
sble
but
not
reco
mm
ende
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rus
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ove
425
0.N
otto
beus
edov
er54
00.
Not
tobe
used
over
34$
0.
Not
tobe
usod
over
455
0.
Perm
rssr
ble
but
not
reco
mm
ende
dfo
rpr
olon
ged
use
abov
eab
out
455
°o,
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used
over
565
0.‘N
otto
beus
edov
er59
00.
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mis
sibt
ehu
tno
tre
com
men
ded
for
prol
onge
dus
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ove
abou
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toho
used
over
425
0.
For
serv
ice
tem
pera
ture
56$
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dab
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shou
ldbe
used
only
whe
nas
sura
nce
spr
ovrd
edth
atgr
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zes
not
grea
ter
than
AST
MN
o6.
24
-
Ruf
urto
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cotu
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lyth
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mhe
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beft
bole
s.
=
Typ
e01
Typ
e05
NO
TE
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irne
rtsi
onN1
sm
easu
red
afth
ein
ters
ecti
onof
the
hub
draf
tan
gle
and
the
back
face
ofth
efl
ange
.
Fig
ure
5-
Dim
ensi
ons
ofPN
2,5
flan
ges
Typ
e11
25
-
EN
1092
-1:2
001
(E)
Tab
le6
-D
imen
sio
ns
ofPN
2,5
flan
ges
Din
it.n
,io
rsir
rriiI
l:rnr
trU
S
Mat
ing
dim
ensi
ons
Noc
kO
utsi
deD
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eter
[)ia
met
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gO
utsi
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ore
Fla
nge
thic
knes
sD
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eter
Len
gths
Nec
kC
omer
thic
krie
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erof
bolt
ofbo
ltdi
amet
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diam
eter
mdi
i(s
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ciho
leotn
eck
shou
lder
5.6
1)
DK
LN
umbe
rS
ize
1A
C1j
F5j
F5F5
SF
lange_
type
010511
1101
0111
0511
1111
1111
Use
PN6
rati
ng(d
imen
sion
sfo
rth
ese
size
sar
eid
enti
cah
-
1200
1375
13
20
30
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M27
1219
2611
6070
1612
4516
71
40
01
57
51
52
030
36
M27
1422
26
1346
70
16
1445
167
16
00
1790
1730
30
40
M2
71626
26
1546
80
20
16
35
168
1800
19
90
19
30
3044
M27
18
29
26
1746
80
20
1845
16
92000
2190
2130
30
48
M27
2032
26
1950
80
2220
4516
1022
002405
2340
3352
M30
2235
28
90
252
24
818
10
2400
2605
2540
3356
M3
024
38T
obe
To
be
28
90
2524
4818
102600
2805
2740
336
0M
30
2620
spec4
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434
Fig
ure
9-
Dim
ensi
ons
ofPN
25fl
anges
-
Tab
le10
-D
imen
sions
ofPN
25fl
anges
EN10
92-1
:200
1(E
)
Drr
rlO
lt
rrflt
m€tr
os
Mot
tttq
dtr
tttt
ser
tst
4’1
tt,
t,t
tt,
,33
131)
ci3
Ftç
tt
cin’
cit3<
ci
-
EN
1092
-1:2
001
(E)
Typ
e05
Typ
e11
Typ
e12
Typ
e13
NO
TE
1D
rnen
sion
cN1,
N,
and
N1ar
em
easu
red
atth
ein
ters
ecti
onof
the
hub
draf
tan
gle
and
the
back
face
ofth
efl
ange
.
NO
TE
2Fo
rdi
rnen
sion
sd1
cce
tabl
e4.
NO
TE
3F
ordim
enso
ns
0re
ter
toN
OT
E1
of5
61
.
36N
OTL
4T
ype
33;
ltpped
pipe
end
wit
hout
dete
rmin
atio
nof
thrc
knes
s.
Typ
e21
cj
Ths
dag
ram
lius
trot
esth
.ar
ranq
rm
ont
but
not
rcess
arl
yth
eco
rrec
tnu
mbc
rof
bolt
hole
s,
Refr
toth
eco
lum
nB
oltn
gN
umbe
rn
tabl
e11
for
tho
octc
ilnu
mho
.
Typ
e02
and
32T
ype
02an
d33
Typ
e04
and
34T
ype
01
t-’
Fig
ure
10-
Dim
ensi
ons
ofPN
40fl
ang
es
-
Tab
le11
-D
imen
sions
ofPN
40fl
anges
EN
1092
-1:2
001
(E)
Mat
ltsg
chm
ens>
ors
,lo
l
1>
5,
t(6
€>1
$5
tS
tt
6333
3>n
€>e
1t>
nge
>1ck
rC
ar>l
34>1
>tt
3,6
3>1
3>
rINj
t>k
A38
Elj
St()
j10
I(>1
1l
>41(>
7>
Fia
ngo
——
t1
>‘
>2>4
14t
4(4
4t
t)t
t>12
t>
f3T
15
>t2
t1>
50
321
1t
1t
t>1
412
(>4
>3t
t3>
tt
tt
M17
16>4
3t
t1
44
Mt
‘t)
2O
253’
>46
131
33t>
t>1
M0
69
27
631
4>6
>818
414
(t
44’
4
t>t’
tt
tM
l3
37
3438
41t>
18>8
414
331
14>
3t>
t1>
t83
MtS
34
4347
533
>13
1318
>4>
11
t1
4t>
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tM
t6483
4953
(713
1>8
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>44
14t
>10
’>3
4M
t((>
36>
657
2>‘3
16(1
43
44
36
tt4
>8II
Ml
t77
8193
21.
26
168
t3
>1
t>0
1>6
t88
Ml>
88
910
’3’
t11
4,4
44
0>8
4t
1t
‘t
13
M(
t14
11t6
(13
1t3
826
424
19
4>1’
14
>3
7>2
t1
3M
4t1
97
>41
14’
161
3426
61>
1>5
481
1>3
41,0
t1
M,4
1683
17
0’
t4
t94
3034
346
Z4
t40
‘.
>41
>1
0>4
11)
M2>
126
20
3614
361
81
3)
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t>4
,,>
>34
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>40
343
338
31
41.
1818
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3’t
81
tt
54,
1t
M(31
33
932
7S
3336
848
424,
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tt
18
t
t1
6M
36
1535
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4>8
446
468
16t
14
‘34
11
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t1
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>41
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8t,
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>436
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0>6
761
066
575
8>1
4’
64>3
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1>t
14
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5>18
35
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551
9S
7,7
78
17’
414
t1
t>
t10
103,
>8M
l1
t1
6t6
512
673
842
78
>4t
t(t
113
1
37
-
EN10
92-1
:200
1
38
NO
TE
1D
men
sio
ns
N1N2
and
N3ar
em
easu
red
atth
ein
ters
ecti
on
sof
the
hub
dra
ban
gle
and
the
back
face
ofth
e
flan
ge.
NO
TE
2F
ordt
men
sion
Gre
fer
toN
OT
E1
of5.6
i
LC
Thd
agn
mil
ustr
ates
the
orr
anqem
enl
but
not
mce
ssly
the
on
eet
num
her
ofbo
ltho
les
Bet
erto
thco
lum
nBo
ltng
Num
ber
inta
ble
12fo
rth
eac
tual
num
ber
Typ
e01
Typ
e11
Typ
e05
Typ
e12
Typ
e13
Typ
e21
Fig
ure
11-
Dim
ensi
ons
ofP
N63
flan
ges
-
Tab
le12
-D
imen
sions
ofPN
63fl
anges
EN10
92-1
:200
1(E
)
DIr
nens
l033
0n
mh
rnet
ros
Mat
tng
dim
enst
ons
S
It31
44tn
830
Out
s6
8t
Ino
ttk
et
tt
t4
St
kt
4t
t6
3t
63
tt
tnO
t4
ttt,
tt3
ttt
3t
DN
tuit
ot‘6
43t
o
jO
m4
81
10t’
tïttt
3333
33to
ttoto
Flan
ety
pet
11t
ttt
tt
01ii
2l
[0
511
t11
tî
1
t)1433)3
1U
CO
ttt
40tO
t4
St,
000
34
tS
628
263)
3662
1t
43
t1
tt33
M24
74t
3)’
26t,
3)t>
3)>
4)t
33t
143t
333
1t
t8
St0
3333
99
04
31)
823
333
3,)
44t
1>t
433
tt
3>33
4134
1t4
lt(
t30
3)30
33>3
4233
t>33
tt
13t
1>t
>4t
8M
>.î
1397
1415
3434
3434
t53
880.
143
18t
tt
t’34
’43
>3)
33’
4130
1683
10
536
33,
646
t0
6t
9t,
0)t
t
>41)
414
ttt,
.M
3t
Cl>
),,t
446
4>4>
4>18
)11
13t
64t
44
t33
t41
3327
33)
3)>
‘441
464)
0.13
131
3t
tt
t40
3613
413
3>1’
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t>3u
5?S
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t)1
t’)
044
1)13
St6
t6
to’)
7,.
566
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t’)
30)
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4t
133
3‘t
tlt
411
4133
40t
441
18
306
6336
040
41
4)
334
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344
048
>1M
45-
68
633
‘t3
3)3
(41
’,.
16-
-14
t0
1)4
3).1
4M
5284
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80
tIl,
t3,
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4143
9,.
-3
31
300
1,r
111>
8M
44.
--
38t
tt
lt4’
33’
t3
2841
64-
-t
8-
tt
10
130
143
/8/2
Mlx
312
6t
orfla
tpo
sty
p,‘
tti
eou
tsid
ehu
bdi
amet
erap
piox
imat
ely
corr
osp
onds
toth
eou
tsld
epi
pedi
amet
er.
39
-
EN10
92-1
:200
1(E
)
1 -N
OT
Et
Dir
nen
ons
N1N2
and
are
mea
sure
daf
the
nte
isec
bons
ofth
ehu
bd
aft
angl
ean
dth
eba
ckfa
ceof
the
flan
ge.
NO
TE
2F
ord
rnen
sio
n0
refe
rto
NO
TE
1of
56.1
.
Fig
ure
12-
Dim
ensi
ons
ofPN
100
flan
ges
Li K
1
40
-
EN10
92-1
:200
1(E
)
Tab
le1
3-
Dim
ensi
ons
ofPN
100
1lan
ges
Dir
nens
ions
inrn
iWm
etre
s
Mat
inq
dim
ensi
ons
NS
06)0
8)0
0)i
ok
oD
ia088
Bol
t)nç
jO
ulai
de23
oeF88
thic
88es
sD
iam
eior
0027
516
Noo
.k0
40
)01
:C
om
ei)0&
01bo
ltol
hol)
dian
iote
rof
dia
Ioio
rof
e05.
5.01
2ci
rcio
hals
noch
shou
ldor
0IS
SNu0
20Is
ice
AB
0710
7101
0C
75.
..I2*
-
11
8)1
S1
F
1”1:
.’)1
‘2)2
17
21
80
2020
20
20-
294o
214
4i
76-2
MII
21
.2.2
23
221
02
027
)20
‘b
i43
14
-14
’.,:
144
‘21.
43
37
:.1
,:2
224
2422
--0
.--
2.3_
22
4::
12
1,—
11)
20-D
ii4
:026
2626
16-
8)75
’15
2’)’
loo
1-16
.75
.:1
24
20
on1.
2020
3:
24-
nOi
6522
011
7.:
25S
126
78.1
775
3030
3434
424
07
61?
108
116
115
636
3023
018
02:
68
1124
1175
990
534
3230
3200
4476
1222
:01
012
38.
4,2
S(1
2)S
11
143
20
008
402
8052
101
01
S11
531
526
03”
)8
130
1375
714
1,6
4240
40
4010
556
106
1216
018
815
58
6.3
5035
529
03•
312
M30
168,
317
0,5
4844
4444
130
55750
1221
022
522
610
12
46
)36
036
1M
i)19
12
21
560
2202
180
100
IS27
827
8IS
1)25
050
543
039
12M
3627
3,0
276.
572
6060
6021
015
728
34.0
3•40
1212
,530
058
650
042
16M
3932
3,9
327,
584
.68
6808
260
-17
018
400
407
121.
4,2
350
650
560
4816
M45
355.
635
9,5
9574
7474
300
189
2046
046
.012
161:
)40
071
562
048
16M
4540
6,4
411,
010
678
-51
850
087
0‘7
6056
20M
i))?
508.
08)3
,512
894
--
..-
630
°F
or
flan
ges
type
21th
eou
tsid
ehu
bdi
amet
erap
prox
imat
ely
corr
esp
on
ds
toth
eou
tsid
epi
pedi
amet
er.
41
-
EN 1092-1:2001 (E)
Table 14- Tolerances
. ToleranceDimenson Flange Type Size Mm
DN125
Outside diameter of neck A 11, 21, 34 > DN 125 s DN 1200
> DN 1200
DN100
>DN100DN400Bore diameter 8, 82, B- 01. 02. 04. 12.32
> DN 400 DN 600
>DN600
DN250 ±4,0>DN250DN500DN800 ±6.0
21 >DN800;DN 1200 ±7,0> DN 1200 DN 1600 ± 8,0> DN 1600 . DN 2000 ± 10,0
Outside diameter D> DN 2000 ± 12,0DN15O ±2,0>DN15ODN500 ±3,0
All other types > DN 500 DN 1200 ± 5,0> DN 1200 DN 1800 ± 7.0>DN1800 ±10,0
DN8O ±1,5Length through hub 11, 12, 13 > DN 80 DN 250 ± 2,0H1,HH3 >DN250 ±3,0
DN 50
>DN50DN 150
11, 21, 34 > DN 150 DN 300
> DN 300 DN 600
> DN 600 DN 1200Neck diameter — DN 50N1, N2. N3
>DN5ODN15O
>DN15ODN300
12,13 >DN300DN600
> DN 600 DN 1200
> DN 1200 DN 1800
_____
__
1800
(continued)
42
-
EN 1092-1:2001 (E)
Table 14 (concIudeo
ToleranceDimenson Flange type Size mm
« 18 mm thickness ±1,0AH types (machined on
> 18 mm 50 mm thickness ± 1.5both faces)
> 50 mm thickness ± 2.0Flange thicknessc., c2, c3, c4 AH types (machined on 18 mm thickness
front face only)> 18 mm < 50 mm thickness
Type 02 and 04(unmachined) > 50 mm thickness
Facing diameter DN 250AH type