Australian/New Zealand Standard - Global Supply Line · Review of Standards. To keep abreast of progress in industry, Joint Australian/New Zealand Standards are subject to periodic

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AS/NZS 4331.1:1995ISO 7005-1:1992

Australian/New Zealand Standard

Metallic flanges

Part 1: Steel flanges

Global Supply Line Pty LtdMajor stockist of valves to AS/ISO/API/ASME standards.Contact us: [email protected]

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AS/NZS 4331.1:1995

This Joint Australian/New Zealand Standard was prepared by Joint TechnicalCommittee ME/1, Pressure Equipment. It was approved on behalf of the Council ofStandards Australia on 19 July 1995 and on behalf of the council of Standards NewZealand on 24 October 1995. It was published on 5 December 1995.

The following interests are represented on Committee ME/1:

A.C.T. Occupational Health and Safety OfficeAluminium Development Council, AustraliaAustralian Chamber of Commerce and IndustryAustralian Institute of EnergyAustralian Institute of PetroleumAustralian Institute of Pressure Equipment EngineersAustralian Liquefied Petroleum Gas AssociationBoiler and Pressure Vessel Manufacturers Association of AustraliaBureau of Steel Manufacturers of AustraliaDepartment for Industrial Affairs, S.A.Department of Employment, Vocational Education, Training and Industrial

Relations, Qld.Department of Labour, New ZealandDepartment of Occupational Health, Safety and Welfare, W.A.Electricity Corporation of New ZealandElectricity Supply Association of AustraliaHeavy Engineering Research Association, New ZealandInstitute of Metals and Materials, AustralasiaInstitution of Engineers, AustraliaInsurance Council of AustraliaMetal Trades Industry Association of AustraliaNational Association of Testing Authorities, AustraliaNew Zealand Engineering FederationNew Zealand Petrochemical Users GroupNew Zealand Timber Industry FederationOccupational Health and Safety Authority, Vic.Tasmania Development and ResourcesWelding Technology Institute of AustraliaWorkCover Authority, N.S.W.Work Health Authority, N.T.

Review of Standards. To keep abreast of progress in industry, Joint Australian/NewZealand Standards are subject to periodic review and are kept up to date by the issue ofamendments or new editions as necessary. It is important therefore that Standards usersensure that they are in possession of the latest edition, and any amendments thereto.

Full details of all Joint Standards and related publications will be found in the StandardsAustralia and Standards New Zealand Catalogue of Publications; this information issupplemented each month by the magazines ‘The Australian Standard’ and ‘Standards NewZealand’, which subscribing members receive, and which give details of new publications,new editions and amendments, and of withdrawn Standards.

Suggestions for improvements to Joint Standards, addressed to the head office of eitherStandards Australia or Standards New Zealand, are welcomed. Notification of anyinaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be madewithout delay in order that the matter may be investigated and appropriate action taken.

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AS/NZS 4331.1:1995

Australian/New Zealand Standard

Metallic flanges

Part 1: Steel flanges

PUBLISHED JOINTLY BY:

STANDARDS AUSTRALIA1 The Crescent,Homebush NSW 2140 Australia

STANDARDS NEW ZEALANDLevel 10, Standards House,155 The Terrace,Wellington 6001 New Zealand

ISBN 0 7337 0007 1

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ii

PREFACE

This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee ME/1 onPressure Equipment. It is identical with and has been reproduced from ISO 7005-1:1992, Metallic flanges,Part 1: Steel flanges.

The objective of this Standard is to provide designers, manufacturers and users with an international Standardfor flanges for use in pressure applications.

This Joint Standard is one of the following series that applies to metallic flanges.

AS/NZS4331 Metallic flanges4331.1 Part 1: Steel flanges4331.2 Part 2: Cast iron flanges4331.3 Part 3: Copper alloy and composite flanges

Under arrangements made between Standards Australia, Standards New Zealand and ISO, users of thisStandard are advised that in Australia copyright is vested in Standards Australia and in New Zealandcopyright is vested in Standards New Zealand.

It is not intended this Standard be a mandatory replacement for any flange Standards already in use inAustralia or New Zealand. Before flanges to this Standard are used with flanges of other Standards,compatibility for bolting, strength, gasket seating and the like should be checked.

Statements expressed in mandatory terms in notes to text, tables and figures are deemed to be requirementsof this Standard.

The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of theannex to which they apply. A ‘normative’ annex is an integral part of a Standard, whereas an ‘informative’annex is only for information and guidance.

As this Standard is reproduced from an international Standard, the following applies:

(a) Its number appears on the cover and title page while the International Standard number appears only onthe cover.

(b) In the source text, ‘this International Standard’ should read ‘this Australia/New Zealand Standard’.

(c) A full point substitutes for a comma when referring to a decimal marker.

References to international Standards should be replaced by equivalent Australian Standards, as follows:

Reference to International Standard Australian StandardISO7

7-1:1982

7-2:1982

Pipe threads where pressure-tightjoints are made on the threadsPart 1: Designation, dimensions

and tolerancesPart 2: Verification by means of

limit gauges

AS1722

1722.1

1722.1

Pipe threads of Whitworth form

Part 1: Sealing pipe threads

Part 1: Sealing pipe threads

261:1973 ISO general purpose metric screwthreads—General plan

1721 General purpose metric screwthreads

887* Plain washers for metric bolts,screws and nuts for generalpurposes—General plan

—

* To be published (Revision of ISO 887:1983).

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ISO6708:1980 Pipe components—

Definition of nominal size

AS—

7268:1983 Pipe components—Definition of nominal pressure

—

7483:1991 Dimensions of gaskets for usewith flanges to ISO 7005

—

ANSI/ASMEB1.20.1:1983 Pipe threads, general purpose

(inch)

—

Equivalent National Material Standards may be substituted for those specified in this Standard.

© Copyright STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND

Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software.Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australiaor Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permissionin writing from Standards Australia or Standards New Zealand. Permission may be conditional on an appropriate royalty payment. Australianrequests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. NewZealand requests should be directed to Standards New Zealand.

Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of theStandard without payment of a royalty or advice to Standards Australia or Standards New Zealand.

Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programsare used exclusively in-house by the creators of the programs.

Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard isamended or revised. The number and date of the Standard should therefore be clearly identified.

The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercialcontracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time.

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CONTENTS

Page

Section 1: General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.4 Designation of types, components and facings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Section 2: General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Pressure/temperature ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Materials and bolting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.4 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.5 Facings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.6 Spot-facing or back-facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.7 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.8 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.9 Inspection and test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.10 Information to be supplied by the purchaser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Section 3: Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Section 4: Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

First published as AS/NZS 4331.1:1995.

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Annexes Page

A Bevel for specified wall thicknesses from 5 mm to 22 mm inclusive andgreater than 22 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

B Acceptable bevel designs for unequal wall thicknesses(pipeline applications) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

C Recommended bevel for equal wall thicknesses t the end of the flangehub from 5 mm to 22 mm inclusive and greater than 22 mm (pipeline applications) . . . 51

D Guidance on flange materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

E Guidance on pressure/temperature ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

F Design criteria (pipeline applications) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

G Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Tables

1 Surface finish for facings types A, B and E/F (large) . . . . . . . . . . . . . . . . . . . . . 5

2 Surface finish values for facings types C/D, E/F (small), G/H and J . . . . . . . . . . . 5

3 Synoptic table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Dimensions of flange facings for PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40 15

5 Dimensions of flange facings up to nominal size DN 900 for PN 20, PN 50, PN 110,PN 150, PN 260 and PN 420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Dimensions of flange facings for nominaL sizes DN 950 to DN 1 500 for PN 20,PN 50, PN 110 and PN 150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Dimensions of ring-joint facings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Dimensions of PN 2,5 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9 Dimensions of PN 6 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

10 Dimensions of PN 10 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

11 Dimensions of PN 16 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

12 Dimensions of PN 20 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

13 Dimensions of PN 25 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

14 Dimensions of PN 40 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

15 Dimensions of PN 50 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

16 Dimensions of PN 110 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

17 Dimensions of PN 150 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

18 Dimensions of PN 260 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

19 Dimensions of PN 420 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

20 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

21 Minimum hub radius after back-facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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D.1 Basic properties and reference standards for materials used for PN 2,5,PN 6, PN 10, PN 16, PN 25 and PN 40 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

D.2 Reference standards for materials used for PN 20, PN 50, PN 110,PN 150, PN 260 and PN 420 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

D.3 Materials applicable to tables 12, 15, 16 and 17 covering PN 20,PN 50, PN 110 and PN 150 flanges types 05 and 11 in the sizerange DN 300 and larger for pipeline applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

E.1 Pressure/temperature (P/T) ratings for flanges made using materialgroups 1E0 to 6E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

E.2 Pressure/temperature (P/T) ratings for flanges made using materialgroups 7E0 to 9E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

E.3 Pressure/temperature (P/T) ratings for flanges made using austeniticstainless steels (based on 0,2% proof stress), material groups 10E0 to 15E0 . . . . . . . 65

E.4 Pressure/temperature (P/T) ratings for flanges made using austeniticstainless steels (based on 1% proof stress), material groups 10E0 to 15E0 . . . . . . . . 66

E.5 Pressure/temperature (P/T) ratings for flanges made using group 1A1materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

E.6 Pressure/temperature (P/T) ratings for flanges made using group 1A2materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

E.7 Pressure/temperature (P/T) ratings for flanges made using group 1A3materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

E.8 Pressure/temperature (P/T) ratings for flanges made using group 1A4materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

E.9 Pressure/temperature (P/T) ratings for flanges made using group 1A5materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

E.10 Pressure/temperature (P/T) ratings for flanges made using group 1A7materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

E.11 Pressure/temperature (P/T) ratings for flanges made using group 1A9materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

E.12 Pressure/temperature (P/T) ratings for flanges made using group 1A10materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

E.13 Pressure/temperature (P/T) ratings for flanges made using group 1A13materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

E.14 Pressure/temperature (P/T) ratings for flanges made using group 1A14materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

E.15 Pressure/temperature (P/T) ratings for flanges made using group 2A1materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

E.16 Pressure/temperature (P/T) ratings for flanges made using group 2A2materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E.17 Pressure/temperature (P/T) ratings for flanges made using group 2A3materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E.18 Pressure/temperature (P/T) ratings for flanges made using group 2A4materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.19 Pressure/temperature (P/T) ratings for flanges made using group 2A5materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

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Page

E.20 Pressure/temperature (P/T) ratings for flanges made using group 2A6materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

E.21 Pressure/temperature (P/T) ratings for flanges made using group 2A7materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

E.22 Pressure/temperature (P/T) ratings for pipeline flanges . . . . . . . . . . . . . . . . . . 77

Figures

1 Flanges — Types 01 to 05 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Flanges — Types 11 to 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Flange — Type 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Ancillary components for flanges — Types 32 to 34 . . . . . . . . . . . . . . . . . . . . . . . 9

5 Illustration of flange facings (types A to J) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40 flange facing dimensions . . . . . . . 14

7 PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 flange facing dimensions . . . 16

8 Minimum hub radius after back-facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

A.1 Bevel for specified wall thicknesses t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

B.1 Acceptable bevel designs for unequal wall thicknesses . . . . . . . . . . . . . . . . . . . 50

C.1 Recommended bevel for equal wall thicknesses t at the end of the flange hub . . 51

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1

AUSTRALIAN/NEW ZEALAND STANDARD

Metallic flanges —

Part 1:Steel flanges

Section 1: General

1.1 Scope

This part of ISO 7005 for a single system of flangesspecifies requirements for circular steel flanges in thefollowing PN designations:

Series 1*) Series 2*)

PN 10 PN 2,5PN 16 PN 6PN 20 PN 25PN 50 PN 40PN 110PN 150PN 260PN 420

It specifies the types of steel flanges and their facings,dimensions, tolerances, threading, bolt sizes, flangeface surface finish, marking, testing and inspection.

It does not specify pressure/temperature ratings ormaterials for steel flanges. However, annex D givesguidance on selected materials and annex E givesguidance on the pressure/temperature ratings for someflanges made from the materials listed in annex D.

This part of ISO 7005 does not apply to flanges madefrom bar stock by turning.

Nor does it apply to flanges of types 11, 12, 13, 14 and15 made from plate material.

The various gasket types, dimensions, design charac-teristics and materials used are not within the scope ofthis part of ISO 7005.

NOTE — Dimensions of gaskets are given in ISO 7483.

1.2 Normative references

The following standards contain provisions which,through reference in this text, constitute provisions ofthis part of ISO 7005. At the time of publication, theeditions indicated were valid. All standards are subjectto revision, and parties to agreements based on thispart of ISO 7005 are encouraged to investigate thepossibility of applying the most recent editions of thestandards indicated below. Members of IEC and ISOmaintain registers of currently valid InternationalStandards.

ISO 7-1 : 1982, Pipe threads where pressure-tight jointsare made on the threads — Part 1: Designation,dimensions and tolerances.

ISO 7-2 : 1982, Pipe threads where pressure-tight jointsare made on the threads — Part 2: Verification bymeans of limit gauges.

ISO 261 : 1973, ISO general purpose metric screwthreads — General plan.

ISO 887: — 1), Plain washers for metric bolts, screwsand nuts for general purposes — General plan.

ISO 6708 : 1980, Pipe components — Definition ofnominal size.

ISO 7268 : 1983, Pipe components — Definition ofnominal pressure.

ISO 7483 : 1991, Dimensions of gaskets for use withflanges to ISO 7005.

ANSI/ASME B1.20.1 : 1983, Pipe threads, generalpurpose (inch).

*) Series 1 flanges are the basic flanges; series 2 flanges may have a limited application in the future.

1) To be published. (Revision of ISO 887 : 1983.)

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1.3 Definitions

For the purposes of this part of ISO 7005, the defini-tions of nominal size (DN) as given in ISO 6708, andnominal pressure (PN) as given in ISO 7268 and thefollowing definition apply.

1.3.1 pipeline: Cross-country fluid transmission line,e.g. for oil or gas.

1.4 Designation of types, components andfacings

Figures 1 to 4 illustrate flanges and flanged compo-nents grouped according to type and figure 5 illustratesfacing types.

Figure 1: Flanges — Types 01 to 05 inclusive,comprising flanges generally manufactured fromplate materials.

NOTE — Types 02 and 03 are identical; it is theirancillary components which dif fer (see figure 4).

Figure 2: Flanges — Types 11 to 15 inclusive,comprising flanges generally manufactured fromforgings or castings.

Figure 3: Flange — Type 21 integral flange, aspart of some other equipment or component.

Figure 4: Ancillary components for flanges —Types 32 to 34 inclusive, comprising parts orcomponents for use with flange types 02, 03and 04.

Figure 5: Facings — Types A to J inclusive,comprising the various types of flange facingswhich may be used where applicable in conjunc-tion with the groups of flanges or flangedcomponents in figures 1 to 4.

NOTE — Type numbers are not consecutive to permitpossible future addit ions to any part icular group.

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Section 2: General requirements

2.1 Pressure/temperature ratings

Guidance on pressure/temperature ratings of flangesforming the subject of this part of ISO 7005 is given inannex E for some flanges made from the materials listedin annex D.

2.2 Materials and bolting

2.2.1 Range of materials

Guidance on selected materials is given in annex D.

2.2.2 Gaskets

See the note in 1.1.

2.2.3 Bolting

The material of the bolting should be chosen by the useraccording to the pressure, temperature, flange materialand the selected gasket so that the flanged joint remainstight under the expected operating conditions.

For PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420flanges up to and including bolt size M45, coarse seriesbolts to ISO 261 shall be used; from bolt size M48upwards, the fine series having a uniform 4 mm pitch shallbe used.

2.3 Repairs

2.3.1 Where not otherwise prohibited by the applicablematerial standard, repairs by welding are permitted whenthere is a proven method. All welding shall be inaccordance with a written procedure.

2.3.2 Any filler rod used for weld repairs shall be such asto produce a weld having characteristics similar to thoseof the parent metal. Flanges shall be heat treated afterrepair welding when the material specification requiressuch treatment.

2.4 Dimensions

2.4.1 Range of nominal sizes

The range of nominal sizes applicable to each flange typeand each nominal pressure shall be as specified intable 3.

2.4.2 Tables giving dimensions

Dimensions of flanges shall be in accordance with thefollowing tables, as appropriate.

Tables 4, 5, 6 and 7: Dimensions of flange facings

Series 1 flangesTable 10: Dimensions of PN 10 flangesTable 11: Dimensions of PN 16 flangesTable 12: Dimensions of PN 20 flangesTable 15: Dimensions of PN 50 flangesTable 16: Dimensions of PN 110 flangesTable 17: Dimensions of PN 150 flangesTable 18: Dimensions of PN 260 flangesTable 19: Dimensions of PN 420 flanges

Series 2 flangesTable 8: Dimensions of PN 2,5 flangesTable 9: Dimensions of PN 6 flangesTable 13: Dimensions of PN 25 flangesTable 14: Dimensions of PN 40 flanges

2.4.3 Threads for threaded flanges

2.4.3.1 The threads shall be taper or parallel threads inaccordance with ISO 7-1 or taper threads in accordancewith ANSI/ASME B1.20.1 as appropriate.

NOTE — Unless otherwise specified, parallel threads in accor-dance with ISO 7-1 will be supplied for flanges PN 2,5, PN 6,PN 10, PN 16, PN 25 and PN 40 and taper threads in accor-dance with ANSI/ASME B1.20.1 for flanges PN 20, PN 50,PN 110, PN 150, PN 260 and PN 420.

2.4.3.2 The threads shall be concentric with the axes ofthe flanges and variations in alignment shall not exceed5 mm/m. Flanges up to and including PN 40 shall bemanufactured without a counterbore. The threads shall bechamfered approximately to the major diameter of thethreads at the back of the flanges at an angle of approxi-mately 45° with the axes of the threads. The chamfersshall be concentric with the threads and permitted to beincluded in the measurement of the thread lengths pro-vided that the chamfers do not exceed one pitch in length.

Flanges PN 50 and above shall be provided with a coun-terbore at the back. The threads shall be chamfered to thediameters of the counterbores at an angle of approxi-mately 45° with the axes of the threads. The counterboresand chamfers shall be concentric with the threads.

2.4.3.3 Gauging shall be in accordance with ISO 7-2 orANSI/ASME B1.20.1 as appropriate.

2.4.4 Hubs — General applications

2.4.4.1 The hub of threaded (type 13), slip-on (type 12),socket weld (type 14) and lapped (type 15) flanges shallbe cylindrical or alternatively shall have a draft of not morethan 7° on the outside surface for forging or castingpurposes. For the limiting profile of weld neck hubs, seeannex A.

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2.4.4.2 The hub dimensions of threaded (type 13) andslip-on (type 12) flanges having a reduced bore shall beat least as large as those of the standard flange of thesize to which the reduction is being made. For weldingneck (type 11) flanges having a reduced bore, the hubdimensions shall be the same as those of the standardflange of the size to which the reduction is being made.

2.4.5 Hubs — Pipeline applications

2.4.5.1 The hub diameter and wall thickness at thewelding end shall be determined as specified in 2.4.5.1.1to 2.4.5.1.3 as appropriate.

2.4.5.1.1 When the minimum yield strength of the hubportion of any flange or its representative test specimen isthe same as that of the mating pipe, the minimumthickness at the welding end shall be the same as that ofthe mating pipe.

2.4.5.1.2 When the minimum yield strength of the hubportion of any flange or its representative test specimen isless than that specified for the pipe to be matched, theminimum thickness of the hub at the welding end shall besuch that the product of its thickness times its yieldstrength (at the welding end) shall at least equal theproduct of the specified wall thickness and the minimumspecified yield strength of the pipe to be matched.

2.4.5.1.3 When the hub thickness at the welding end isgreater than the wall thickness of the adjoining pipe, thejoint design shall be as shown in any of the three sketchesin figure B.1.

2.4.5.2 The minimum hub outside diameter at the point ofweld shall be determined by adding twice the minimumwall thickness determined in 2.4.5.1.1 or 2.4.5.1.2 to thebore specified by the customer.

2.4.5.3 For sizes DN 300 to DN 600, when the mechani-cal (minimum yield strength) properties of all sections ofthe flanges are equal to or higher than those of the pipeto be matched, the hub dimensions are permitted to bethe same as those of the general flanges as indicated inannex A.

2.4.6 Welding end preparation

For welding type 11 flanges to pipe, the typical endpreparation of the flange shall be as shown in annex A.When PN 20, PN 50, PN 110 and PN 150 flanges areused in pipeline applications the typical welding endpreparations are as shown in annex C.

NOTE — Other welding end preparations agreed between manu-facturer and purchaser do not invalidate compliance with this partof ISO 7005.

2.5 Facings

2.5.1 Range of facings

The range of flange facings and flange face designationsshall be as given in figure 5. Dimensions of facings accor-ding to the PN designation shall be in accordance withfigures 6 and 7 and tables 4, 5, 6 and 7, as appropriate.

NOTES

1 For types B (as shown in figure 6 only), D, F, G and J thetransition from the raised face diameter to the flange face is atthe option of the manufacturer.

2 For PN 20 and PN 50 to PN 420 there are large and small ver-sions of C, D, E and F types of facing. In such cases two sets ofdimensions have been given in the related tables. For small maleand female joints care should be taken to ensure that the insidediameter of the pipe is small enough to permit sufficient bearingsurface.

3 The type B raised face on steel flanges may be removed whenbolted to cast iron or copper alloy flanges for designations up toand including PN 50 in order to provide full-face gasketing if suchbe required. On a flanged component or fitting this will reduce thethickness and the overall length accordingly.

2.5.2 Facing height/depth

For PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40flanges all facing heights shall be included in the minimumflange thickness and are measured from the face of theflange. The same requirement applies for PN 20 andPN 50 flanges when they have the (type B1) raised face.For PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420flanges with other facings, e.g. type B2, spigot and recess,tongue and groove, the height or depth shall be added tothe minimum flange thickness. For PN 110 to PN 420flanges all facings shall be added to the minimum flangethickness. Special requirements apply to ring-joint facings(see 2.5.3).

2.5.3 Ring-joint facings

The bottom of the ring-joint groove shall not encroachbelow the plane of the flange edge of the appropriateminimum thickness flange. Where the depth of the ring-type joint groove would violate this requirement, sufficientmetal shall be added to the flange thickness or raised faceheight so that the bottom of the groove shall be in thesame plane as the flange edge of a minimum thicknessflange.

2.5.4 Lapped joints

For type 33 ancillary components for flanges, the finishedheight of the facing shall be not less than the pipethickness used. If a tongue, groove or ring-joint face isrequired, the thickness of the lap remaining aftermachining the facing shall not be less than the specifiedthickness of the pipe used.

2.5.5 Surface finish of flanges

2.5.5.1 All flange jointing faces shall be finished inaccordance with table 1 or table 2, as appropriate. Thesurface finishes of the faces shall be compared by visualor tactile means with reference specimens which conformto the Ra and Rz values given in tables 1 and 2.

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Table 1 — Surface finish for facings types A, B and E/F (large)

Method ofmachining

Approximatedepth ofserration

mm

Approximateradius oftool nose

mm

Approximatepitch of

serrationmm

Rz1)

μmRa

1)

μm

min. max. min. max.

Turning2) 0,05 1,6 0,8 12,5 50,0 3,2 12,5

Other thanturning

— — — 12,5 25,0 3,2 6,3

1) Ra and Rz are defined in ISO 468.

2) The term “turning” includes any method of machine operation producing either serrated concentric orserrated spiral grooves.

NOTE — For certain applications, e.g. for searching media such as low temperature gases, and forflanges of PN 150 and above, it may be necessary to stipulate closer control on the surface finish.

NOTES

1 It is not intended that instrument measurements are taken onthe flange faces, and the Ra and Rz values as defined in ISO 468relate to the reference specimens.

2 Other finishes may be agreed between the manufacturer andpurchaser.

2.5.5.2 The dimensions given for facings (particularlytongue and groove types] in this part of ISO 7005 apply toflanges in the condition as delivered.

When special coatings or finishes are required this shouldbe stated in the order so that an appropriate allowancemay be incorporated in the machining of any relevantmating dimensions.

2.5.5.3 Flat face, raised face and large spigot/recessfacings [i.e. types A, B and E/F (large)] shall be turned.Turning shall be carried out with a round-nosed tool inaccordance with table 1.

2.5.5.4 For tongue/groove, small spigot/recess, “O”-ringrecess/groove and ring-joint facings [i.e. types C/D, E/F(small), G/H and J] the gasket surfaces shall be machinedin accordance with the values shown in table 2.

Table 2 — Surface finish values for facingstypes C/D, E/F (small), G/H and J

Facing typeRz

1)

μmRa

1)

μm

min. max. min. max.

Tongue/groove (C/D) and smallspigot/recess (E/F)

3,2 12,5 0,8 3,2

Ring-joint (J) ( including side walls)and “O”- ring recess/groove (G/H)

1,6 6,3 0,4 1,6

1) Ra and Rz are defined in ISO 468.

2.6 Spot-facing or back-facing

Any spot-facing or back-facing required shall not reducethe flange thickness to less than the thickness specified.

When spot-facing is used, the diameter shall be largeenough to accommodate the outside diameter of theequivalent normal series of ISO washers complying withISO 887 for the metric bolt size being fitted. When aflange is back-faced, it is permissible for the fillet radius tobe reduced but it shall not be eliminated entirely. Thebearing surfaces for the bolting shall be parallel to theflange face within the limits shown in table 20.

When a flange is back-faced a minimum fillet radius at thehub, Rmin (see figure 8), shall be maintained as given intable 21.

2.7 Tolerances

Flange dimensions shall comply with the tolerancesspecified in table 20.

2.8 Marking

2.8.1 Flanges other than integral flanges

Flanges other than integral flanges shall be marked withthe following information:

a) the number of this part of ISO 7005 (i.e.ISO 7005-1);b) the nominal size (DN) and the PN designation;c) the material designation (see 2.8.2);d) the manufacturer’s name or trade-mark;e) the thread identification where appropriate(see 2.8.3);f) the heat (cast) number or suitable quality controlnumber traceable to the heat number.

NOTES1 Additionally, flange facing designations may be given (seealso 2.8.4).2 Where a flange is subsequently used to form an integral partof a component and the component has a lower pressure ratingthan that of the flange, the lower rating should be clearly markedon the component.

2.8.2 Material designation

The material designation shall be as specified in 2.8.2.1,2.8.2.2 and 2.8.2.3, as appropriate.

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2.8.2.1 The material designation shall be the minimuminformation required to identify the material, e.g. the gradeidentification, preceded by the specification (standard)number where necessary.

EXAMPLES (for materials in tables D.1 and D.2)

a) 16Mo3

b) C26-52H

c) X7 CrNiNb 18 10

2.8.2.2 For flanges of nominal size DN 300 and greater,manufactured specifically for pipeline applications, thematerial designation shall be the material group and gradeidentification number in accordance with table D.3.

EXAMPLE

4.A.250

2.8.2.3 For flanges manufactured in accordance with2.4.5.1.2, the material designation shall comprise thematerial group and grade identification number for theflange and the strength grade of the pipe for which theflange has been made, presented as shown in thefollowing example.

EXAMPLE

4.A.290/XXX

where XXX is the strength grade of the pipe, taken fromthe appropriate steel tube standard.

2.8.3 Identification of internally threaded flanges

Internally threaded flanges shall be marked to indicate thetype of thread used.

Threads to ISO 7-1 shall be designated by the lettersymbols Rc or Rp, as appropriate, in accordance withISO 7-1 followed by the nominal size, e.g. Rc 3/4.Threads to ANSI/ASME B1.20.1 shall be designated bythe nominal size, number of threads per inch and theletters NPT, e.g. 3/4-14NPT.

2.8.4 Groove number

Flanges grooved for standard ring-joints shall be markedwith the letter “R” and the corresponding ring number.

2.8.5 Stamping

Where steel stamps are used, the marking shall beapplied to the rim of the flange.

2.9 Inspection and test

NOTES

1 The PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420flanges specified are designed to be interchangeable with Classrated flanges to ANSI/ASME B16.5 and MSS 5P44, but they arenot identical in all respects; for inspection purposes, it isrecommended that the dimensions of PN 20, PN 50, PN 110,PN 150, PN 260 and PN 420 flanges are deemed to comply withthe dimensions specified in ANSI/ASME B16.5 or MSS 5P44 asappropriate.

2 This part of ISO 7005 does not make provision for routineinspection or pressure testing of separate flanges. However,flanges may be required to be pressure tested after attachmentof a pipe or other equipment or when forming an integral part ofsuch equipment. The test pressure is then dependent on therequirements of the appropriate standard or code of practice inaccordance with which the equipment has been manufactured.Any test pressures should not exceed 1,5 times the maximumallowable working pressure at 20°C rounded off to the next higher1 bar1) increment.

2.10 Information to be supplied by thepurchaser

The following information should be supplied by thepurchaser in the enquiry and/or order:

a) the number of this part of ISO 7005 (i.e.ISO 7005-1);

b) the nominal size — DN followed by the appropriatenumber (see 1.3);

c) the PN designation — PN followed by theappropriate number (see 1.3);

d) the flange type number (see 1.4), together withreference to the ancillary component type number ifappropriate;

e) the facing type letter (see 1.4);

f) the material designation by reference to a nationalstandard or International Standard and grade of steel(see 2.8.2), if appropriate;

g) the internal thread designation (see 2.4.3);

h) the external diameter and thickness of pipe;

i) material certification requirements;

j) details of special coatings (see 2.5.5.2);

k) the neck thickness S where appropriate;

i) the bore diameter B where appropriate;

m) the bore diameter for welding neck (type 11) orsocket weld (type 14) flanges, if different from thosespecified in this part of ISO 7005;

n) for pipeline flanges, the mating pipe wall thicknessand yield strength (see 2.4.5.1.3) and weld preparation(see annex B);

o) the bolting material when bolts are ordered with theflange(s).

1) 1 bar = 105 Pa

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NOTE — These sketches are diagrammatic only.

Figure 1 — Flanges — Types 01 to 05

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NOTE — These sketches are diagrammatic only.

Figure 2 — Flanges — Types 11 to 15

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NOTE — This sketch is diagrammatic only.

Figure 3 — Flange — Type 21

NOTE — These sketches are diagrammatic only.

1) Type 32 corresponds to type 02 flange.

2) Type 33 corresponds to type 03 flange.

3) Type 34 corresponds to type 04 flange.

Figure 4 — Ancillary components for flanges — Types 32 to 34

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NOTE — These sketches are diagrammatic only.

Figure 5 — Illustration of flange facings (types A to J)

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Se

cti

on

3:D

ime

nsi

on

s

Tab

le3

—S

yno

pti

cta

ble

1)

No

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able

toty

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04.

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(con

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Figure 6 — PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40 flange facing dimensions

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Table 4 — Dimensions of flange facings for PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40 (see figure 6)Dimensions in mil limetres

NominalsizeDN

d1f1 f2 f3 f4 w x y z α d2PN 2,5 PN 6 PN 10 PN 16 PN 25 PN 40

10

Use PN 6

33

Use PN 40

41

2

4 3 2

24 34 35 23—

5

15 38 46 29 39 40 28

20 48 56 36 50 51 35

41°16′

25 58 65 43 57 58 42

32 69 76 51 65 66 50

40 78 84 61 75 76 60

50 88 99 73 87 88 7265 108 118 95 109 110 94

80 124 132 106 120 121 105

100 144 156

4,5 3,5 2,5

129 149 150 128

32°15′ 6

125 174 184 156 175 176 154

150 199 211 183 203 204 182

200 254 266 266 274 284 239 259 260 238

250 309 319 319 330 345 292 312 313 291

300 363 370 370 389 409 343 363 364 342

350 413 429 429 448 465

5 4 3

395 421 422 394

27°24′ 7

400 463 480 480 503 535 447 473 474 446

450 518 530 548 548 560 497 523 524 496

500 568 582 609 609 615 549 575 576 548

600 667 682 720 720 735 649 675 676 648

700 772 794 794 820 —

5

751 777 778 750

800 878 901 901 928 — 856 882 883 855

900 978 1 001 1 001 1 028 — 961 987 988 960

1 000 1 078 1 112 1 112 1 140 —

6 5 4

1 062 1 092 1 094 1 060

28°39′ 8

1 200 1 295 1 328 1 328 1 350 — 1 262 1 292 1 294 1 260

1 400 1 510 1 530 1 530 1 560 — 1 462 1 492 1 494 1 460

1 600 1 710 1 750 1 750 1 780 — 1 662 1 692 1 694 1 660

1 800 1 918 1 950 1 950 1 985 — 1 862 1 892 1 894 1 860

2 000 2 125 2 150 2 150 2 210 — 2 062 2 092 2 094 2 060

2 200 2 295 2 335 2 370 — — —

6 — — — — — — — — —

2 400 2 495 2 545 2 570 — — —

2 600 2 695 2 750 2 780 — — —

2 800 2 910 2 960 3 000 — — —3 000 3 110 3 160 3 210 — — —

3 200 3 310 3 370 — — — —

3 400 3 510 3 580 — — — —

3 600 3 720 3 790 — — — —

3 800 3 920 — — — — —

4 000 4 120 — — — — —

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1) f1 applies to PN 20 and PN 50 and is included in flange thickness C.2) f2 applies to PN 110, PN 150, PN 260 and PN 420, and is addit ional to flange thickness C.3) d2 is larger than d1 for DN 15, DN 20, DN 25 and DN 32; otherwise d2 is equal to d1.4) x2 is equal to d1 for DN 15 and DN 20.5) Height of raised port ion E is equal to groove depth E but is not subject to tolerance (see 2.5.3).

Figure 7 — PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 flange facing dimensions

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Table 5 — Dimensions of flange facings up to nominal size DN 900 for PN 20, PN 50, PN 110, PN 150,PN 260 and PN 420

(see figure 7)Dimensions in mil limetres

Outside diameter Outside diameter Height

Nominalsize

Raisedface,Large

spigot1),Large

tongue1)

Smallspigot

Smalltongue

Insidediameterof large

andsmall

tongue

Largerecess 1),

Largegroove 1)

Smallrecess

Smallgroove

Insidediameterof large

andsmall

groove

Raisedface

Largeand

smallspigot

andtongue

Depthof

grooveor

recess

Minimumoutside

diameterof raisedportion

DN d1 x1 x2 w y1 y3 y2 z f12) f2

3) f2 f3 d2 d31)

1520253240506580

100125150200250300350400450500550600650700750800850900

35435163,57392

105127157,5186216270324381413470533,5584,5641692,5749800857914965

1022

18,52430,53844,557,568,584

109,5136,5162213267317,5349,5400451501,5

603

3543485763,582,595,5

117,5144,5173203,5254305362394447,5511,5559

667

25,533,53847,5547385,5

108132160,5190,5238286343374,5425,5489533,5

641,5

36,544,552,56574,593,5

106,5128,5159187,5217,5271,5325,5382,5414,5471,5535586

694

2025,53239,546597085,5

111138163,5214,5268,5319351401,5452,5503

605

36,544,549,558,5658497

119146174,5205255,5306,5363,5395,5449513560,5

668,5

243236,54652,571,584

106,5130,5159189236,5284,5341,5373424487,5532

640

22222222222222222222222222

77777777777777777777777777

777777777777777777

7

555555555555555555

5

445257677392

105127157,5186216270324381413470533,5584,5

692,5

4654627384

103116138168197227281335392424481544595

703,5

1) Large spigot and recess faces and large tongue and groove are not applicable to PN 20 because of potential dimensionalconflicts.

2) f1 applies to PN 20 and PN 50, and is included in the minimum flange thickness.

3) f2 applies to PN 110, PN 150, PN 260 and PN 420, and is addit ional to the minimum flange thickness.

NOTE — For small spigot and recess joints care should be taken in the use of these dimensions to ensure that the insidediameter of the fit ting or pipe is small enough to ensure suff icient bearing surfaces.

Table 6 — Dimensions of flange facings for nominal sizes DN 950 to DN 1 500for PN 20, PN 50, PN 110 and PN 150

Dimensions in mil limetres

Nominal size Outside diameter of raised faced1

Height of raised face

DN PN 20 PN 50 PN 110 PN 150 f11) f2

2)

9501 0001 0501 1001 1501 2001 2501 3001 3501 4001 4501 500

1 0731 1241 1941 2451 2951 3591 4101 4601 5111 5751 6261 676

1 0291 0861 1371 1941 2451 3081 3591 4101 4671 5181 5751 625

1 0541 1111 1681 2261 2761 3341 3841 4351 4921 5431 6001 657

1 0991 1621 2131 2701 3341 384

222222222222

777777777777

1) f1 applies to PN 20 and PN 50.

2) f2 applies to PN 110 and PN 150.

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tabl

e7.

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Tab

le7

—D

imen

sio

ns

of

rin

g-j

oin

tfa

cin

gs

1),

2),

3),

4)

Dim

ensi

ons

inm

illim

etre

s

Pip

en

om

inal

siz

eD

NG

roo

ved

imen

sio

ns

Dia

me

ter

of

rais

edp

ort

ion

Jm

in.

Ap

pro

xim

ate

dis

tan

ceb

etw

een

flan

ges

s

PN

20

PN

50

PN

110

PN

150

5)

PN

260

PN

420

Gro

ove

nu

mb

er

Pit

chd

iam

-e

ter

Dep

th6

)W

idth

Rad

ius

at

bo

tto

mP

N2

0P

N5

0a

ndP

N1

10P

N1

50P

N2

60P

N4

20P

N2

0P

N5

0P

N1

10P

N1

50P

N2

60P

N4

20

P±

0,1

3E

+0,

40

F±

0,2

Rm

ax.

— — — — 25

15

— 20

— —

15

— 20

— —

— — — — —

— 15

— 20

—

— — 15

— —

R11

R12

R13

R14

R15

34,

143

9,67

42,

884

4,45

47,

62

5,5

66

,35

6,3

56

,35

6,3

5

7,1

48

,74

8,7

48

,74

8,7

4

0,8

0,8

0,8

0,8

0,8

— — — — 63,

5

51 — 63,

5— —

— — — — —

— 60,

5— 66,

5—

— — 65 — —

— — — — 4

3 — 4 — —

3 — 4 — —

— — — — —

— 4 — 4 —

— — 4 — —

— 32

— 40

—

25

— 32

— 40

25

— 32

— 40

— — — — —

25

— 32

— 40

20

— 25

— —

R16

R17

R18

R19

R20

50,

85

7,15

60,

326

5,07

68,

28

6,3

56

,35

6,3

56

,35

6,3

5

8,7

48

,74

8,7

48

,74

8,7

4

0,8

0,8

0,8

0,8

0,8

— 73 — 82,

5—

70 — 79,

5— 90,

5

— — — — —

71,

5— 81 — 92

73 — 82,

5— —

— 4 — 4 —

4 — 4 — 4

4 — 4 — 4

— — — — —

4 — 4 — 4

4 — 4 — —

— 50

— — 65

— — 50

— —

— — 50

— —

— — — — —

— — — 50

—

32

— 40

— —

R21

R22

R23

R24

R25

72,

248

2,55

82,

559

5,25

101

,6

7,9

26

,35

7,9

27

,92

6,3

5

11,

918

,74

11,

911

1,91

8,7

4

0,8

0,8

0,8

0,8

0,8

—1

02 — —1

21

— —1

08 — —

— — — — —

— — —1

24 —

102 —

114 — —

— 4 — — 4

— — 6 — —

— — 5 — —

— — — — —

— — — 3 —

3 — 3 — —

— — — 80

—

65

— — — —

65

— — — —

— — — — —

— 65

— — —

50

— 65

— —

R26

R27

R28

R29

R30

101

,61

07,9

51

11,1

21

14,3

117

,48

7,9

27

,92

9,5

26

,35

7,9

2

11,

911

1,91

13,

498

,74

11,

91

0,8

0,8

1,5

0,8

0,8

— — —1

33 —

127 — — — —

— — — — —

—1

37 — — —

133 —

149 — —

— — — 4 —

6 — — — —

5 — — — —

— — — — —

— 3 — — —

3 — 3 — —

— — — — —

80

7)

— — — —

80

7)

— — — —

80

— — — —

— — — — 80

— 80

— — —

R31

R32

R33

R34

R35

123

,82

127

131

,78

131

,78

136

,52

7,9

29

,52

6,3

57

,92

7,9

2

11,

911

3,49

8,7

41

1,91

11,

91

0,8

1,5

0,8

0,8

0,8

— —1

54 — —

146 — —

159 —

156 — — — —

— — — —1

68

—1

68 — — —

— — 4 — —

6 — — 6 —

5 — — 5 —

4 — — — —

— — — — 3

— 3 — — —

100 — — — 125

— 100 — — —

— 100 — — —

— 100 — — —

— — — 100 —

— — 100 — —

R36

R37

R38

R39

R40

149

,22

149

,22

157

,18

161

,92

171

,45

6,3

57

,92

11,

137

,92

6,3

5

8,7

41

1,91

16,

661

1,91

8,7

4

0,8

0,8

1,5

0,8

0,8

171 — — —

194

—1

75 — — —

— 181 — — —

— — —1

94 —

— —2

03 — —

4 — — — 4

— 6 — — —

— 5 — — —

— 4 — — —

— — — 3 —

— — 4 — —

— — 150 — —

125 — — — 150

125 — — — 150

125 — — — 150

— — — 125 —

— 125 — — —

R41

R42

R43

R44

R45

180

,98

190

,51

93,6

81

93,6

82

11,1

2

7,9

21

2,7

6,3

57

,92

7,9

2

11,

911

9,84

8,7

41

1,91

11,

91

0,8

1,5

0,8

0,8

0,8

— —2

19 — —

210 — — —

241

216 — — — 241

— — —2

29 —

—2

41 — — —

— — 4 — —

6 — — — 6

5 — — — 5

4 — — — 4

— — — 3 —

— 4 — — —

CO

PY

RIG

HT

Page 29

www.bzfxw.com20

Tab

le7

(con

tinue

d)

Dim

ensi

ons

inm

illim

etre

s

Pip

en

om

inal

siz

eD

NG

roo

ved

imen

sio

ns

Dia

me

ter

of

rais

edp

ort

ion

Jm

in.

Ap

pro

xim

ate

dis

tan

ceb

etw

een

flan

ges

s

PN

20

PN

50

PN

110

PN

150

5)

PN

260

PN

420

Gro

ove

nu

mb

er

Pit

chd

iam

-e

ter

Dep

th6

)W

idth

Rad

ius

at

bo

tto

mP

N2

0P

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0a

ndP

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10P

N1

50P

N2

60P

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N2

0P

N5

0P

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N1

50P

N2

60P

N4

20

P±

0,1

3E

+0,

40

F±

0,2

Rm

ax.

— — 200 — —

— — — 200 —

— — — 200 —

— — — 200 —

150 — — — 200

— 150 — — —

R46

R47

R48

R49

R50

211

,12

228

,62

47,6

52

69,8

82

69,8

8

9,5

21

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57

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11,

13

13,

491

9,84

8,7

41

1,91

16,

66

1,5

1,5

0,8

0,8

1,5

— — 273 — —

— — — 302 —

— — — 308 —

248 — — — 318

— 279 — — —

— — 4 — —

— — — 6 —

— — — 5 —

— — — 4 —

3 — — — 4

— 4 — — —

— 250 — — —

— — 250 — —

— — 250 — —

— — 250 — —

— — — 250 —

200 — — — 250

R51

R52

R53

R54

R55

279

,43

04,8

323

,85

323

,85

342

,9

14,

276

,35

7,9

21

1,13

17,

48

23,

018

,74

11,

911

6,66

30,

18

1,5

0,8

0,8

1,5

2,4

— 330 — — —

— — 356 — —

— — 362 — —

— — — 371 —

340 — — — 425

— 4 — — —

— — 6 — —

— — 5 — —

— — 4 — —

— — — 4 —

5 — — — 6

300 — — 350 —

— 300 — — —

— 300 — — —

— 300 — — —

— — 300 — —

— — — — 300

R56

R57

R58

R59

R60

381

381

381

396

,88

406

,4

6,3

57

,92

14,

276

,35

17,

48

8,7

41

1,91

23,

018

,74

33,

32

0,8

0,8

1,5

0,8

2,4

406 — — 425 —

— 413 — — —

— 419 — — —

— — 438 — —

— — — — 495

4 — — 3 —

— 6 — — —

— 5 — — —

— 4 — — —

— — 5 — —

— — — — 8

— — — 400 —

350 — — — 400

350 — — — 400

— 350 — — —

— — 350 — —

— — — — —

R61

R62

R63

R64

R65

419

,14

19,1

419

,14

54,0

24

69,9

7,9

21

1,13

15,

886

,35

7,9

2

11,

911

6,66

26,

978

,74

11,

91

0,8

1,5

2,4

0,8

0,8

— — — 483 —

457 — — — 508

— 467 — — —

— — 489 — —

— — — — —

— — — 3 —

6 — — — 6

5 — — — 5

— 4 — — —

— — 6 — —

— — — — —

— — 450 — —

— — — 450 —

— — — 450 —

400 — — — 450

— 400 — — —

— — — — —

R66

R67

R68

R69

R70

469

,94

69,9

517

,52

533

,45

33,4

11,

131

7,48

6,3

57

,92

12,

7

16,

663

0,18

8,7

41

1,91

19,

84

1,5

2,4

0,8

0,8

1,5

— — 546 — —

— — — 575 —

524 — — — 594

— 546 — — —

— — — — —

— — 3 — —

— — — 6 —

— — — 5 —

4 — — — 5

— 8 — — —

— — — — —

— 500 — — —

— — 500 — —

— — 500 — —

— — — 500 —

450 — — — 500

— — — — —

R71

R72

R73

R74

R75

533

,45

58,8

584

,25

84,2

584

,2

17,

486

,35

9,5

21

2,7

17,

48

30,

188

,74

13,

491

9,84

33,

32

2,4

0,8

1,5

1,5

2,4

— 597 — — —

— — 635 — —

— — — 648 —

613 — — — 673

— — — — —

— 3 — — —

— — 6 — —

— — 5 — —

— — — 5 —

8 — — — 10

— — — — —

600 — — —

— 600 — —

— 600 — —

— — 600 —

— — — 600

— — — —

R76

R77

R78

R79

673

,16

92,1

56

92,1

56

92,1

5

6,3

51

1,13

15,

882

0,62

8,7

41

6,66

26,

973

6,53

0,8

1,5

2,4

2,4

711 — — —

— 749 — —

— — 772 —

— — — 794

— — — —

3 — — —

— 6 — —

— 6 — —

— — 6 —

— — — 11

— — — —

CO

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Page 30

www.bzfxw.com21

Tab

le7

(con

clud

ed)

Dim

ensi

ons

inm

illim

etre

s

Pip

en

om

inal

siz

eD

NG

roo

ved

imen

sio

ns

Dia

me

ter

of

rais

edp

ort

ion

Jm

in.

Ap

pro

xim

ate

dis

tan

ceb

etw

een

flan

ges

s

PN

20

PN

50

PN

110

PN

150

5)

PN

260

PN

420

Gro

ove

nu

mb

er

Pit

chd

iam

-e

ter

Dep

th6

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idth

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ius

at

bo

tto

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N2

60P

N4

20

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0,1

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+0,

40

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ax.

— — —

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— 650 —

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— — —

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R93

R93

R10

0

749

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749

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12,

71

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16

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— — 832

— — —

— — —

— — —

— — —

6 — —

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— — 8

— — —

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— 700 —

— — 700

— — —

— — —

R94

R94

R10

1

800

,18

00,1

800

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12,

71

2,7

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46

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34

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— — 889

— — —

— — —

— — —

— — —

6 — —

— 5 —

— — 10

— — —

— — —

— — —

750 — —

— 750 —

— — 750

— — —

— — —

R95

R95

R10

2

857

,25

857

,25

857

,25

12,

71

2,7

17,

46

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851

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33,

34

2 2 2

918

918 —

— — 946

— — —

— — —

— — —

— — —

6 — —

— 5 —

— — 10

— — —

— — —

— — —

800 — —

— 800 —

— — 800

— — —

— — —

R96

R96

R10

3

914

,49

14,4

914

,4

14,

31

4,3

17,

46

23

23

33,

34

2 2 2

984

984 —

— —1

003

— — —

— — —

— — —

— — —

7 — —

— 6 —

— — 10

— — —

— — —

— — —

850 — —

— 850 —

— — 850

— — —

— — —

R97

R97

R10

4

965

,29

65,2

965

,2

14,

31

4,3

20,

64

23

23

36,

51

2 2 2

103

51

035

—

— —1

067

— — —

— — —

— — —

— — —

7 — —

— 6 —

— — 11

— — —

— — —

— — —

900 — —

— 900 —

— — 900

— — —

— — —

R98

R98

R10

5

102

2,35

102

2,35

102

2,35

14,

31

4,3

20,

64

23

23

36,

51

2 2 2

109

21

092

—

— —1

124

— — —

— — —

— — —

— — —

7 — —

— 6 —

— — 11

— — —

— — —

1)

For

faci

ng

req

uire

me

nts

for

fla

nges

and

flan

ged

fitt

ing

s,se

efi

gure

6.

2)

For

faci

ng

req

uire

me

nts

for

lap

ped

join

ts,

see

2.5.

4an

dfi

gure

6.

3)

For

rin

gdi

me

nsio

ns,

see

ISO

748

3.

4)

See

2.8

for

ma

rkin

gre

qui

rem

ent

s.

5)

Use

PN

260

insi

zes

DN

15

toD

N65

for

PN

150.

6)

Hei

ght

of

rais

ed

port

ion

ise

qual

toth

ede

pth

of

groo

veE

but

isno

tsu

bjec

tto

the

tole

ranc

efo

rE

.T

he

form

er

full-

face

con

tour

ma

ybe

used

.

7)

For

rin

gjo

ints

with

lap

ped

flan

ges

inP

N50

and

PN

110

,ri

ng

and

groo

ven

umbe

rR

30

are

use

din

ste

ado

fR

31.

CO

PY

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HT

Page 31

www.bzfxw.com22

CO

PY

RIG

HT

Page 32

www.bzfxw.com23

Tab

le8

—D

imen

sio

ns

of

PN

2,5

flan

ges

(Se

eth

eno

tes

on

page

46.

)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

en

sio

ns

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

ang

e

Dia

me

ter

of

bo

ltc

ircl

e

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ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

knes

sS

ho

uld

erd

iam

ete

rL

eng

tho

fh

ub

Nec

kd

iam

ete

rC

orn

erra

diu

s

Nec

kth

ickn

ess

(se

en

ote

6)

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min

als

ize

Nu

mb

erN

om

inal

siz

e

DN

DK

LA

B1

C2

C2

GH

2H

3N

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N

Fla

ng

ety

pe

01,

05,

111

10

10

1,0

51

10

51

11

11

11

1

10

to60

0U

seP

N6

10

to60

0

700

800

900

860

975

10

75

810

920

10

20

26

29,

52

9,5

24

24

24

M24

M27

M27

711

813

914

Tobespecifiedbythepurchaser

36

38

40

26

26

26

— — —

70

70

70

16

16

16

740

842

942

12

12

12

UsePN16

700

800

900

10

001

200

14

00

11

751

375

15

75

11

201

320

15

20

29,

52

9,5

29,

5

28

32

36

M27

M27

M27

10

161

220

14

20

42

44

48

26

26

26

— — —

70

70

70

16

16

16

10

451

245

14

45

12

16

16

10

001

200

14

00

16

001

800

20

00

17

901

990

21

90

17

301

930

21

30

29,

52

9,5

29,

5

40

44

48

M27

M27

M27

16

201

820

20

20

51

54

58

26

26

26

— — —

80

80

80

20

20

22

16

451

845

20

45

16

16

16

16

001

800

20

00

22

002

400

26

00

24

052

605

28

05

23

402

540

27

40

32,

53

2,5

32,

5

52

56

60

M30

M30

M30

22

202

420

26

20

— — —

28

28

28

— — —

90

90

90

25

25

25

22

482

448

26

48

18

18

18

22

002

400

26

00

28

003

000

32

00

30

303

230

34

30

29

603

160

33

60

35,

53

5,5

35,

5

64

68

72

M33

M33

M33

28

203

020

32

20

— — —

30

30

30

— — —

90

90

90

25

25

25

28

483

050

32

50

18

18

20

28

003

000

32

00

34

003

600

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00

36

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840

40

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39

70

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53

5,5

39

76

80

80

M33

M33

M36

34

203

620

38

20

— — —

32

32

34

— — —

95

100

100

28

28

28

34

503

652

38

52

20

20

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003

600

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00

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004

245

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—3

4—

100

28

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522

04

000

NO

TE

—F

or

faci

ngd

imen

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 33

www.bzfxw.com24

CO

PY

RIG

HT

Page 34

www.bzfxw.com25

Tab

le9

—D

imen

sio

ns

of

PN

6fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

s

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

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me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

Ch

am

fer

Co

lla

rth

ick

ne

ssS

ho

uld

er

dia

me

ter

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gth

of

hu

bN

eck

dia

met

erC

orn

er

rad

ius

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kth

ick

ne

ss(s

eeno

te6)

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min

als

ize

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mb

er

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min

als

ize

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DK

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lan

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typ

e0

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,03,

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1,21

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02,

03

05

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13

21

02,

03

02

05

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13

11

11

11

12,

13

21

11,

12,

13,

211

1

10

15

20

75

80

90

50

55

65

11

11

11

4 4 4

M10

M10

M10

17,

22

1,3

26,

9

18

22

27,

5

21

25

31

12

12

14

12

12

14

3 3 4

10

10

10

— — —

20

20

24

28

30

32

6 6 6

26

30

38

25

30

40

20

26

34

3 3 4

1,6

1,8

1,8

10

15

20

25

32

40

100

120

130

75

90

100

11

14

14

4 4 4

M10

M12

M12

33,

74

2,4

48,

3

34,

54

3,5

49,

5

38

46

53

14

16

16

14

16

16

4 5 5

10

10

10

— — —

24

26

26

35

35

38

6 6 7

42

55

62

50

60

70

44

54

64

4 5 5

2 2,3

2,3

25

32

40

50

65

80

140

160

190

110

130

150

14

14

18

4 4 4

M12

M12

M16

60,

37

6,1

88,

9

61,

57

7,5

90,

5

65

81

94

16

16

18

16

16

18

5 6 6

12

12

12

— 55

70

28

32

34

38

38

42

8 9 10

74

88

102

80

100

110

74

94

110

5 6 6

2,3

2,6

2,9

50

65

80

100

125

150

210

240

265

170

200

225

18

18

18

4 8 8

M16

M16

M16

114

,31

39,7

168

,3

116

141

,51

70,5

120

145

174

18

20

20

18

18

20

6 6 6

14

14

14

90

115

140

40

44

44

45

48

48

10

10

12

130

155

184

130

160

185

130

160

182

6 6 8

3,2

3,6

4

100

125

150

200

250

300

320

375

440

280

335

395

18

18

22

8 12

12

M16

M16

M20

219

,12

733

23,9

221

,52

76,5

327

,5

226

281

333

22

24

24

22

24

24

6 8 8

16

18

18

190

235

285

— — —

55

60

62

15

15

15

236

290

342

240

295

355

238

284

342

8 10

10

4,5

5 5,6

200

250

300

350

400

450

490

540

595

445

495

550

22

22

22

12

16

16

M20

M20

M20

355

,64

06,4

457

359

,54

114

62

365

416

467

26

28

30

24

24

24

24

24

24

8 8 8

18

20

20

325

375

425

— — —

62

65

65

15

15

15

385

438

492

— — —

392

442

494

10

10

12

5,6

6,3

6,3

350

400

450

500

600

700

645

755

860

600

705

810

22

26

26

20

20

24

M20

M24

M24

508

610

711

513

,56

16,5

—

519

622 —

32

36

401

)

26

30

40

26

30

26

8 8 —

22

22 —

475

575 —

— — —

68

70

70

15

16

16

538

640

740

— — —

544

642

746

12

12

12

6,3

6,3 —

500

600

700

800

900

10

00

975

10

751

175

920

10

201

120

29,

52

9,5

29,

5

24

24

28

M27

M27

M27

813

914

10

16

— — —

— — —

441

)

481

)

521

)

44

48

52

26

26

26

— — —

— — —

— — —

— — —

70

70

70

16

16

16

842

942

10

45

— — —

850

950

10

50

12

12

12

— — —

800

900

10

001

200

14

001

600

14

051

630

18

30

13

401

560

17

60

32,

53

5,5

35,

5

32

36

40

M30

M33

M33

12

201

420

16

20

— — —

— — —

601

)

681

)

761

)

60

68

76

28

32

34

— — —

— — —

— — —

— — —

90

90

90

20

20

20

12

481

452

16

55

— — —

12

641

480

16

80

12

12

12

— — —

12

001

400

16

001

800

20

002

200

20

452

265

24

75

19

702

180

23

90

39

42

42

44

48

52

M36

M39

M39

18

202

020

22

20

— — —

— — —

841

)

921

)8

49

2—

36

38

42

— — —

— — —

— — —

— — —

100

110

115

20

25

25

18

552

058

22

60

— — —

18

782

082

—

15

15

15

— — —

18

002

000

22

002

400

26

002

800

26

852

905

31

15

26

002

810

30

20

42

48

48

56

60

64

M39

M45

M45

24

202

620

28

20

— — —

— — —

— — —

44

46

48

— — —

— — —

— — —

— — —

125

130

135

25

25

30

24

622

665

28

65

— — —

— — —

15

15

15

— — —

24

002

600

28

003

000

32

003

400

33

153

525

37

35

32

203

430

36

40

48

48

48

68

72

76

M45

M45

M45

30

203

220

34

20

— — —

— — —

— — —

50

54

56

— — —

— — —

— — —

— — —

140

150

160

30

30

35

30

683

272

34

75

— — —

— — —

15

15

15

— — —

30

003

200

34

003

600

39

703

860

55

80

M52

36

20—

——

60

——

——

165

35

36

78—

—1

5—

36

00

1)

For

type

01fla

nges

onl

y.

NO

TE

—F

ord 1

and

faci

ngdi

men

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 35

www.bzfxw.com26

CO

PY

RIG

HT

Page 36

www.bzfxw.com27

Tab

le10

—D

imen

sio

ns

of

PN

10fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

s

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

Ch

am

fer

Co

lla

rth

ick

ne

ssS

ho

uld

er

dia

me

ter

Len

gth

of

hu

bN

eck

dia

met

erC

orn

er

rad

ius

Nec

kth

ick

ne

ss(s

ee

no

te6)

No

min

als

ize

Nu

mb

er

No

min

als

ize

DN

DK

LA

B1

B2

B3

C1

C2

C3

C4

EF

GH

1H

2H

3N

1N

2N

3R

SD

NF

lan

ge

typ

e0

1,02

,03,

04,

05,

11,

12,

13,

210

4,11

,21

01,

02,

12

02,

03

04

01,

02,

03,

04

11,

12, 13

21

05

02,

03,

04

02,

040

51

2,1

30

4,1

10

4,1

10

4,1

11

2,1

32

11

1,12

,1

3,21

04,

11

10

15

20

Use

PN

40

10

15

20

25

32

40

25

32

40

50

65

80

Use

PN

16

50

65

80

100

125

150

100

125

150

200

250

300

340

395

445

295

350

400

22

22

22

8 12

12

M20

M20

M20

219

,12

733

23,9

221

,52

76,5

327

,5

226

281

333

240

294

348

24

26

28

24

26

26

24

26

26

6 8 8

20

22

22

190

235

285

44

46

46

62

68

68

16

16

16

234

288

342

246

298

350

246

298

348

81

01

0

6,3

6,3

7,1

200

250

300

350

400

450

505

565

615

460

515

565

22

26

26

16

16

20

M20

M24

M24

355

,64

06,4

457

359

,54

114

62

365

416

467

400

450

498

30

32

35

26

26

28

26

28

28

8 8 8

22

24

24

325

375

425

53

57

63

68

72

72

16

16

16

390

440

488

400

456

502

408

456

502

10

10

12

8 8,8

10

350

400

450

500

600

700

670

780

895

620

725

840

26

29,

52

9,5

20

20

24

M24

M27

M27

508

610

711

513

,56

16,5

—

519

622 —

550

650 —

38

42 —

30

28

34 3

4

28

34

38

8 8 —

26

26 —

475

575

670

67

75 —

75

80

80

16

18

18

540

640

746

559

658 —

559

658

772

12

12

12

11

12,

55

006

007

008

009

001

000

10

151

115

12

30

950

10

501

160

32,

53

2,5

35,

5

24

28

28

M30

M30

M33

813

914

10

16

— — —

— — —

— — —

— — —

32

34

34

36

38

38

42

46

52

— — —

— — —

770

860

960

— — —

90

95

95

18

20

20

848

948

10

50

— — —

876

976

10

80

12

12

12

800

900

10

001

200

14

001

600

14

551

675

19

15

13

801

590

18

20

39

42

48

32

36

40

M36

M39

M45

12

201

420

16

20

— — —

— — —

— — —

— — —

38

42

46

44

48

52

60 — —

— — —

— — —

11

60— —

— — —

115

120

130

25

25

25

12

561

460

16

66

— — —

12

921

496

17

12

12

12

12

See

not

e6

12

001

400

16

00

18

002

000

22

00

21

152

325

25

50

20

202

230

24

40

48

48

55

44

48

52

M45

M45

M52

18

202

020

22

20

— — —

— — —

— — —

— — —

50

54

58

56

60 —

— — —

— — —

— — —

— — —

— — —

140

150

160

30

30

35

18

662

070

22

75

— — —

19

102

120

—

15

15

18

18

002

000

22

002

400

26

002

800

27

602

960

31

80

26

502

850

30

70

55

55

55

56

60

64

M52

M52

M52

24

202

620

28

20

— — —

— — —

— — —

— — —

62

66

70

— — —

— — —

— — —

— — —

— — —

— — —

170

180

190

35

40

40

24

782

680

28

82

— — —

— — —

18

18

18

24

002

600

28

003

000

34

053

290

60

68

M56

30

20—

——

—7

5—

——

——

—2

004

53

085

——

18

30

00

NO

TE

—F

ord 1

and

faci

ngdi

men

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 37

www.bzfxw.com28

CO

PY

RIG

HT

Page 38

www.bzfxw.com29

Tab

le11

—D

imen

sio

ns

of

PN

16fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

s

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

Ch

am

fer

Co

lla

rth

ick

ne

ssS

ho

uld

er

dia

me

ter

Len

gth

of

hu

bN

eck

dia

met

erC

orn

er

rad

ius

Nec

kth

ick

ne

ss(s

ee

no

te6)

No

min

als

ize

Nu

mb

er

No

min

al

siz

eD

ND

KL

AB

1B

2B

3C

1C

2C

3C

4E

FG

H1

H2

H3

N1

N2

N3

RS

DN

Fla

ng

ety

pe

01,

02,0

3,0

4,05

,11

,12

,13

,21

04,

11,2

10

1,02

,1

20

2,0

30

40

1,02

,0

3,04

11,

12,

13

21

05

02,

03,

04

02,

040

51

2,1

30

4, 11

04,

11

04,

11

12,

13

21

11,

12,

13,

210

4,11

10

15

20

10

15

20

25

32

40

25

32

40

50

50

65

80

185

200

145

160

18

18

8 8M

16M

167

6,1

88,

97

7,5

90,

58

19

49

61

142

02

02

02

02

02

06 6

16

16

55

70

32

34

45

50

10

10

92

110

104

118

104

120

6 62

,93

,26

58

01

001

251

50

220

250

285

180

210

240

18

18

22

8 8 8

M16

M16

M20

114

,31

39,7

168

,3

116

141

,51

70,5

120

145

174

134

162

188

22

22

24

22

22

24

22

22

24

6 6 6

18

18

20

90

115

140

40

44

44

52

55

55

12

12

12

130

158

184

140

168

195

140

170

190

6 6 8

3,6

4 4,5

100

125

150

200

250

300

340

405

460

295

355

410

22

26

26

12

12

12

M20

M24

M24

219

,12

733

23,9

221

,52

76,5

327

,5

226

281

333

240

294

348

26

28

32

24

26

28

24

26

28

6 8 8

20

22

24

190

235

285

44

46

53

62

70

78

16

16

16

234

288

342

246

298

350

246

296

350

81

01

0

6,3

6,3

7,1

200

250

300

350

400

450

520

580

640

470

525

585

26

29,

52

9,5

16

16

20

M24

M27

M27

355

,64

06,4

457

359

411

462

365

416

467

400

454

500

35

38

42

30

32

40

30

32

40

8 8 8

26

28

30

325

375

425

57

63

68

82

85

87

16

16

16

390

444

490

400

456

502

410

458

516

10

10

12

8 8,8

10

350

400

450

500

600

700

715

840

910

650

770

840

32,

53

5,5

35,

5

20

20

24

M30

M33

M33

508

610

711

513

,56

16,5

—

510

622 —

556

660 —

46

52

601

)3

844

54 4

0

44

54

48

8 8 —

32

32 —

475

575

670

73

83 —

90

95

100

16

18

18

546

650

750

559

658 —

576

690

760

12

12

12

11

12,

5—

500

600

700

800

900

10

00

10

251

125

12

55

950

10

501

170

39

39

42

24

28

28

M36

M36

M39

813

914

10

16

— — —

— — —

— — —

681

)

761

)

841

)

38

40

42

42

44

46

52

58

64

— — —

— — —

770

860

960

— — —

105

110

120

20

20

22

848

948

10

56

— — —

862

962

10

76

12

12

12

— — —

800

900

10

001

200

14

001

600

14

851

685

19

30

13

901

590

18

20

48

48

55

32

36

40

M45

M45

M52

12

201

420

16

20

— — —

— — —

— — —

981

)

— —

48

52

58

52

58

64

76 — —

— — —

— — —

11

60— —

— — —

130

145

160

30

30

35

12

601

465

16

68

— — —

12

821

482

16

96

12

12

12

— — —

12

001

400

16

001

800

20

002

130

23

452

020

22

305

56

04

44

8M

52M

561

820

20

20— —

— —— —

— —6

26

66

87

0— —

— —— —

— —— —

170

190

35

40

18

702

072

— —1

896

21

001

51

5— —

18

002

000

1)

For

type

01fla

nges

onl

y.

NO

TE

—F

ord 1

and

faci

ngdi

men

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 39

www.bzfxw.com30

CO

PY

RIG

HT

Page 40

www.bzfxw.com31

Tab

le12

—D

imen

sio

ns

of

PN

20fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

sC

orn

er

rad

ius

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

(see

note

7)

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

(see

note

9)

Sh

ou

lde

rd

iam

ete

rL

eng

tho

fh

ub

Nec

kd

iam

-e

ter

Fil

let

rad

ius

(at

hu

be

nd

)

Lap

rad

ius

(at

pip

ee

nd

)

Min

i-m

um

thre

ad

len

gth

of

thre

ad

ed

fla

ng

e

Dep

tho

fs

oc

ket

No

min

als

ize

Nu

mb

er

No

min

al

siz

e

(see

not

e8)

(see

not

e5)

DN

DK

LA

B1

B2

B3

C1

C2

C3

GH

1H

2N

R1

R2

TU

DN

Fla

ng

ety

pe

01,

05,1

1,1

2,13

,14

,15

,21

11,

210

1,12

,14

15

11,

140

10

5,11

,1

2,13

,1

4,15

21

05

12,

13,

14

15

11

11,

12,

13,

14,

15,

21

11,

12,

13,

211

51

31

4

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

550

600

90

100

110

120

130

150

180

190

230

255

280

345

405

485

535

600

635

700

750

815

60,

57

07

9,5

89

98,

51

20,5

139

,51

52,5

190

,52

162

41,5

298

,53

624

324

765

405

786

356

927

49,5

16

16

16

16

16

18

18

18

18

22

22

22

26

26

29,

52

9,5

32,

53

2,5

35,

53

5,5

4 4 4 4 4 4 4 4 8 8 8 8 12

12

12

16

16

20

20

20

M14

M14

M14

M14

M14

M16

M16

M16

M16

M20

M20

M20

M24

M24

M27

M27

M30

M30

M33

M33

21,

52

6,5

33,

54

24

8,5

60,

57

38

91

14,5

141

,51

68,5

219

273

324

355

,54

06,5

457

508 — 609

,5

22

28

34,

54

3,5

49,

56

27

4,5

90,

51

161

43,5

170

,52

21,5

276

327

359

410

,54

625

13 —6

16

23

28

35

43,

55

06

2,5

75,

59

1,5

117

144

,51

71,5

222

277

,53

283

604

114

62,5

514

,5—

616

16

21

26,

53

54

15

2,5

62,

57

81

02,5

128

154

202

,52

54,5

305 — — — — — —

12

14

16

18

19

21

24

26

27

28

31

34

38

42

43

48

52

56 — 62

11,

51

31

4,5

16

17,

51

9,5

22,

52

42

42

42

5,5

29

30,

53

23

53

74

04

34

64

8

— — 11,

51

31

4,5

16

17,

51

9,5

24

24

25,

52

93

0,5

32

35

37

40

43 — 48

— — — — — — 38

51

76

102

127

200

225

279

311

362

413

463 — 565

16

16

17

21

22

25

29

30

33

36

40

44

49

56

57

64

68

73 — 83

16

16

17

21

22

25

29

30

33

36

40

45

49

56

79

87

97

103 — 111

48

52

56

57

62

64

70

70

76

89

89

102

102

114

127

127

140

145

149

152

30

38

49

59

65

78

90

108

135

164

192

246

305

365

400

457

505

559

610

664

— — — — — — — — — — — — — 10

10

10

10

10

10

10

3 3 3 5 6 8 8 10

11

11

13

13

13

13

13

13

13

13 — 13

16

16

17

21

22

25

29

30

33

36

40

44

49

56

57

64

68

73 — 83

10

11

13

14

16

17

19

21 — — — — — — — — — — — —

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

550

600

Fla

nge

type

sa

ffect

ed

for

DN

650

and

abo

vear

ety

pes

05

and

11

onl

y.6

507

007

508

008

509

009

501

000

10

501

100

11

501

200

12

501

300

13

501

400

14

501

500

870

925

985

10

601

110

11

701

240

12

901

345

14

051

455

15

101

570

16

251

685

17

451

805

18

55

806

863

914

978

10

291

086

11

501

200

12

571

314

13

651

422

14

801

537

15

941

651

17

081

759

35,

53

5,5

35,

54

24

24

24

24

24

24

24

24

24

84

84

84

84

84

8

24

28

28

28

32

32

32

36

36

40

40

44

44

44

44

48

48

52

M33

M33

M33

M39

M39

M39

M39

M39

M39

M39

M39

M39

M45

M45

M45

M45

M45

M45

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

68,

57

1,5

74,

58

18

2,5

90,

58

7,5

90,

59

7,5

102

103

108

111

116

121

124

129

132

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

121

125

137

144

149

157

157

164

171

178

186

192

203

210

216

229

235

240

675

725

780

830

880

935

990

10

401

090

11

451

195

12

501

300

13

551

405

14

551

510

15

60

10

11

11

11

13

13

13

13

13

13

13

13

13

13

13

13

13

13

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — — —

650

700

750

800

850

900

950

10

001

050

11

001

150

12

001

250

13

001

350

14

001

450

15

00

NO

TE

—F

orfa

cin

gdi

men

sio

ns,

see

tab

les

5,6

and

7.

CO

PY

RIG

HT

Page 41

32

CO

PY

RIG

HT

Page 42

33

Tab

le13

—D

imen

sio

ns

of

PN

25fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

s

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

Ch

am

fer

Co

lla

rth

ick

ne

ssS

ho

uld

er

dia

me

ter

Len

gth

of

hu

bN

eck

dia

met

erC

orn

er

rad

ius

Nec

kth

ick

ne

ss(s

eeno

te6)

No

min

als

ize

Nu

mb

er

No

min

als

ize

DN

DK

LA

B1

B2

B2

C1

C2

C3

C4

EF

GH

1H

2H

3N

1N

2N

3R

SD

NF

lan

ge

typ

e0

1,02

,03,

04,

05,

11,

12,

13,

210

4,11

,21

01,

021

20

2,0

30

40

1,0

2,0

3,0

4

11,

12,

13

21

05

02,

03,0

40

2,04

05

12,

13

04,

11

04,

11

04,

11

12,

13

21

11,

12,

13,

210

4,11

10

15

20

Use

PN

40

10

15

20

25

32

40

25

32

40

50

65

80

50

65

80

100

125

150

100

125

150

200

250

300

360

425

485

310

370

430

26

29,

52

9,5

12

12

16

M24

M27

M27

219

,12

733

23,9

221

,52

76,5

327

,5

226

281

333

250

302

356

32

35

38

30

32

34

30

32

34

6 8 8

26

26

28

190

235

285

52

60

67

80

88

92

16

18

18

244

296

350

256

310

364

252

304

364

81

01

0

6,3

6,3

7,1

200

250

300

350

400

450

555

620

670

490

550

600

32,

53

5,5

35,

5

16

16

20

M30

M33

M33

355

,64

06,4

457

359

,54

114

62

365

416

467

408

462

510

42

46

50

38

40

46

38

40

46

8 8 8

32

34

36

325

375

425

72

78

84

100

110

110

20

20

20

398

452

500

418

472

520

418

472

520

10

10

12

8 8,8

10

350

400

450

500

600

700

730

845

960

660

770

875

35,

53

94

2

20

20

24

M33

M36

M39

508

610

711

513

,56

16,5

—

519

622 —

568

670 —

56

68 —

464

85

85

0

48

58 —

8 8 —

38

40 —

475

575 —

90

100 —

125

125

125

20

20

20

558

660

760

580

684 —

580

684

780

12

12

12

11

12,

5—

500

600

700

800

900

10

00

10

851

185

13

20

990

10

901

210

48

48

55

24

28

28

M45

M45

M52

813

914

10

16

— — —

— — —

— — —

— — —

50

54

58

54

58

62

— — —

— — —

— — —

— — —

— — —

135

145

155

22

24

24

864

968

10

70

— — —

882

982

10

86

12

12

12

— — —

800

900

10

001

200

14

001

600

15

301

755

19

75

14

201

640

18

60

55

60

60

32

36

40

M52

M56

M56

12

201

420

16

20

— — —

— — —

— — —

— — —

— — —

70

76

84

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

12

961

508

17

26

12

12

12

— — —

12

001

400

16

001

800

20

002

195

24

252

070

23

006

86

84

44

8M

64M

641

820

20

20— —

— —— —

— —— —

90

96

— —— —

— —— —

— —— —

— —— —

— —1

920

21

501

51

5— —

18

002

000

NO

TE

—F

ord 1

and

faci

ngdi

men

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 43

34

CO

PY

RIG

HT

Page 44

35

Tab

le14

—D

imen

sio

ns

of

PN

40fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

s

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

Ch

am

fer

Co

lla

rth

ick

ne

ssS

ho

uld

er

dia

me

ter

Len

gth

of

hu

bN

eck

dia

met

erC

orn

er

rad

ius

Nec

kth

ick

ne

ss(s

eeno

te6)

No

min

als

ize

Nu

mb

er

No

min

als

ize

DN

DK

LA

B1

B2

B3

C1

C2

C3

C4

EF

GH

1H

2H

3N

1N

2N

3R

SD

NF

lan

ge

typ

e0

1,02

,03,

04,

05,

11,

12,

13,

210

4,11

,21

01,

02,

12

02,

03

04

01,

02,

03,

04

11,

12,

13

21

05

02,

03,0

40

2,04

05

12,

13

04,

11

04,

11

04,

11

12,

13

21

11,

12,

13,

210

4,11

10

15

20

90

95

105

60

65

75

14

14

14

4 4 4

M12

M12

M12

17,

22

1,3

26,

9

18

22

27,

5

21

25

31

31

35

42

14

14

16

14

14

16

3 3 4

12

12

14

— — —

22

22

26

35

38

40

6 6 6

28

32

40

30

35

45

28

32

40

3 3 4

2,3

3,2

3,2

10

15

20

25

32

40

115

140

150

85

100

110

14

18

18

4 4 4

M12

M16

M16

33,

74

2,4

48,

3

34,

54

3,5

49,

5

38

47

53

49

59

67

16

18

18

16

18

18

4 5 5

14

14

14

— — —

28

30

32

40

42

45

6 6 7

46

56

64

52

60

70

50

60

70

4 5 5

3,2

3,6

3,6

25

32

40

50

65

80

165

185

200

125

145

160

18

18

18

4 8 8

M16

M16

M16

60,

37

6,1

88,

9

61,

57

7,5

90,

5

65

81

94

77

96

114

20

22

24

20

22

24

5 6 6

16

16

18

— 55

70

34

38

40

48

52

58

8 10

12

74

92

110

84

104

118

84

104

120

5 6 6

4 5 5,6

50

65

80

100

125

150

235

270

300

190

220

250

22

26

26

8 8 8

M20

M24

M24

114

,31

39,7

168

,3

116

141

,51

70,5

120

145

174

138

166

194

26

28

30

24

26

28

6 6 6

20

22

24

90

115

140

44

48

52

65

68

75

12

12

12

134

162

190

145

170

200

142

162

192

6 6 8

6,3

6,3

7,1

100

125

150

200

250

300

375

450

515

320

385

450

29,

53

2,5

32,

5

12

12

16

M27

M30

M30

219

,12

733

23,9

221

,52

76,5

327

,5

226

281

333

250

312

368

36

42

48

34

38

42

6 8 8

28

30

34

190

235

285

— — —

88

105

115

16

18

18

244

306

362

— — —

254

312

378

8 10

10

81

01

0

200

250

300

350

400

450

580

660

685

510

585

610

35,

53

93

9

16

16

20

M33

M36

M36

355

,64

06,4

457

359

,54

114

62

365

416

467

418

472

510

55

60

66

46

50

57

8 8 8

36

42

46

325

375

425

— — —

125

135

135

20

20

20

408

462

500

— — —

432

498

522

10

10

12

11

12,

51

4,2

350

400

450

500

600

755

890

670

795

42

48

20

20

M39

M45

508

610

513

,56

16,5

519

622

572

676

72

84

57

72

8 85

05

44

755

75— —

140

150

20

20

562

666

— —5

766

861

21

21

61

7,5

500

600

NO

TE

—F

ord 1

and

faci

ngdi

men

sion

s,se

eta

ble

4.

CO

PY

RIG

HT

Page 45

36

CO

PY

RIG

HT

Page 46

37

Tab

le15

—D

imen

sio

ns

of

PN

50fl

ang

es(S

ee

the

note

so

npa

ge4

6.)

Dim

ensi

ons

inm

illim

etre

s

Mat

ing

dim

ensi

on

sC

orn

er

rad

ius

No

min

als

ize

Ou

tsid

ed

iam

ete

ro

ffl

an

ge

Dia

me

ter

of

bo

ltc

ircl

e

Dia

me

ter

of

bo

lth

ole

s

Bo

lts

Ou

tsid

ed

iam

ete

ro

fn

eck

(see

not

e7)

Bo

red

iam

ete

rF

lan

ge

thic

kn

ess

(see

note

9)

Sh

ou

lde

rd

iam

ete

rL

eng

tho

fh

ub

Nec

kd

iam

ete

r

Fil

let

rad

ius

(at

hu

be

nd

)

Lap

rad

ius

(at

pip

ee

nd

)

Min

i-m

um

thre

ad

len

gth

of

thre

ad

ed

fla

ng

e

Dep

tho

fs

oc

ket

Min

i-m

um

dia

me

ter

of

co

un

ter-

bo

reth

rea

de

dfl

an

ge

No

min

als

ize

Nu

mb

er

No

min

als

ize

(see

not

e8)

(see

not

e5)

DN

DK

LA

B1

B2

B3

CG

H1

H2

NR

1R

2T

UV

DN

Fla

ng

ety

pe

05,

11,1

2,1

3,14

,15

,21

11,

211

2,14

15

11,

140

5,11

,12,

13,

14,

15,2

10

51

2,1

3, 14

15

11

11,

12,

13,

14,

15,

21

11,

12,

13,

211

51

31

41

3

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

550

600

95

120

125

135

155

165

190

210

255

280

320

380

445

520

585

650

710

775

840

915

66,

58

2,5

89

98,

51

14,5

127

149

168

,52

002

352

703

303

87,5

451

514

,55

71,5

628

,56

867

438

13

16

18

18

18

22

18

22

22

22

22

22

26

29,

53

2,5

32,

53

5,5

35,

53

5,5

42

42

4 4 4 4 4 8 8 8 8 81

21

21

61

62

02

02

42

42

42

4

M14

M16

M16

M16

M20

M16

M20

M20

M20

M20

M20

M24

M27

M30

M30

M33

M33

M33

M39

M39

21,

52

6,5

33,

54

24

8,5

60,

57

38

91

14,5

141

,51

68,5

219

273

324

355

,54

06,5

457

508

559

609

,5

22

28

34,

54

3,5

49,

56

27

4,5

90,

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