Orifice Flanges

A N A M E R I C A N N A T I O N A L S T A N D A R D

ASME B16.36-2006(Revision of ASME B16.36-1996)

ASME B16.36-2006(Revision of ASME B16.36-1996)

Orifice Flanges

A N A M E R I C A N N A T I O N A L S T A N D A R D

Three Park Avenue • New York, NY 10016

Date of Issuance: June 8, 2007

The next edition of this Standard is scheduled for publication in 2012. There will be no addendaissued to this Edition.

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The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990

Copyright © 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reservedPrinted in U.S.A.

CONTENTS

Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ivCommittee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vCorrespondence With the B16 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Pressure–Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

4 Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

5 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

6 Flange Facing Finish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

7 Gaskets for Raised Face Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

8 Pressure Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

9 Jack Screw Provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

10 Flange Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

11 Flange Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

12 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figures1 Corner Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Angular Meter Tap for RTJ Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Jack Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Tables1 Class 300 Orifice Flanges, Welding Neck, Slip-On and Threaded . . . . . . . . . . . . . . . . . . . . . 42 Class 600 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Class 900 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Class 1500 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Class 2500 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Mandatory AppendicesI Dimensional Data for Classes 300, 600, 900, 1500, and 2500 Flanges in

U.S. Customary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11II Dimensional Data for Class 400 Flanges in U.S. Customary Units . . . . . . . . . . . . . . . . . . . 17III References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Nonmandatory AppendixA Quality System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

iii

FOREWORD

August of 1956 marked the first recorded correspondence noting the lack of standardizationfor orifice flanges. There were, and still are, several codes for the performance and calibrationof orifice flanges, but there had been no standardization of the flanges themselves. Over theensuing 3 years, correspondence continued among the Instrument Society of America, AmericanGas Association, and the B16 Standards Committee.

On December 3, 1959, Subcommittee 3 (now Subcommittee C) of B16 authorized the appoint-ment of a Task Force to undertake drafting of a standard. Although the initial work progressedsmoothly, a controversy developed over the standard size of taps to be specified for the flanges.This required many years to resolve. It was finally achieved in 1973 with the issuance of a draftfrom the Task Force. Comments and objections to this draft from members of Subcommittee Cwere resolved, and a redraft was approved by the Subcommittee late in 1974. The B16 StandardsCommittee was balloted in the spring of 1975 and approval was gained. Comments from B16members from the gas industry requested that the Class 400 orifice flange be included, and theB16 Subcommittee C agreed to consider this for a possible addendum. The Standard was approvedby ANSI on August 15, 1975.

On April 30, 1979, an addenda was issued, which added Class 400 flanges andMandatory Appendix II covering reference documents and organizations.

In 1982, American National Standards Committee B16 was reorganized as an ASME Committeeoperating under procedures accredited by ANSI. In the 1988 edition, figures were added toillustrate jack bolts and corner taps, metric units have been omitted, and references to otherstandards have been updated. Following approval by the B16 Main Committee and the ASMESupervisory Board, the Standard was approved as an American National Standard by ANSI onFebruary 18, 1988.

In 1996, several revisions were made, including the addition of angular meter taps for ringjoint flanges in sizes not previously covered. Following approval by the B16 Main Committeeand the ASME Supervisory Board, the Standard was approved as an American National Standardby ANSI on November 6, 1996.

This 2006 edition includes metric units as the primary reference units while maintaining U.S.Customary units in either parenthetical or separate forms. Changes to dimensions and nomencla-ture follow that contained within the 2003 edition of ASME B16.5. This includes the change ofminimum flange thickness from C to tf and corrections for Y1 and Y2. Class 400 remains in U.S.Customary tables in Mandatory Appendix II but is not given in the metric dimensional tables.There are numerous requirement clarifications and editorial revisions.

Requests for interpretations or suggestions for revisions should be sent to the Secretary,B16 Committee, Three Park Avenue, New York, NY 10016-5990.

This revision was approved by the American National Standards Institute on November 6, 2006.

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ASME B16 COMMITTEEStandardization of Valves, Flanges, Fittings, and Gaskets

(The following is the roster of the Committee at the time of approval of this Standard.)

STANDARDS COMMITTEE OFFICERS

N. R. Sonderegger, ChairM. L. Nayyar, Vice Chair

U. D’Urso, Secretary

STANDARDS COMMITTEE PERSONNEL

R. W. Barnes, Anric Enterprises, Inc.W. B. Bedesem, ExxonMobil Research and Engineering Co.D. F. Buccicone, Elkhart Products Corp.M. A. Clark, Nibco, Inc.U. D’Urso, The American Society of Mechanical EngineersC. E. Floren, Mueller Co.D. R. Frikken, Becht Engineering Co.G. G. Grills, U.S. Coast GuardM. L. Henderson, Forgital USAG. A. Jolly, Vogt Valves/Flowserve

SUBCOMMITTEE C

M. L. Nayyar, Chair, Bechtel Power Corp.U. D’Urso, Secretary, The American Society of Mechanical

EngineersA. Appleton, Alloy Stainless Products Co., Inc.W. B. Bedesem, ExxonMobil Research and Engineering Co.C. E. Davila, Crane ValvesB. Dennis, Kerkau ManufacturingJ. P. Ellenberger, RetiredD. R. Frikken, Becht Engineering Co.M. L. Henderson, Forgital USA

v

M. Katcher, Haynes InternationalR. Koester, Honorary MemberW. N. McLean, Newco ValvesT. A. McMahon, Fisher Controls International, Inc.M. L. Nayyar, Bechtel Power Corp.J. D. Page, U.S. Regulatory CommissionR. A. Schmidt, Trinity-ladishH. R. Sonderegger, Anvil International, Inc.W. M. Stephan, Flexitallic LPT. F. Stroud, Ductile Iron Pipe Research AssociationD. A. Williams, Southern Company Services

C. L. Henley, Black & VeatchR. E. Johnson, ConsultantM. Katcher, Haynes InternationalW. N. McLean, Newco ValvesW. H. Patrick, The Dow Chemical CompanyT. V. Ramakrishnan, Forged Vessel ConnectionsR. C. Rentschler, Solutia, Inc.R. A. Schmidt, Hackney Ladish, Inc.J. P. Tucker, FlowserveM. M. Zaidi, Jacobs

CORRESPONDENCE WITH THE B16 COMMITTEE

General. ASME Standards are developed and maintained with the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact with the Committeeby requesting interpretations, proposing revisions, and attending Committee meetings. Corre-spondence should be addressed to:

Secretary, B16 Standards CommitteeThe American Society of Mechanical EngineersThree Park AvenueNew York, NY 10016-5990

As an alternative, inquiries may be submitted via e-mail to: SecretaryB16@asme.org.Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes

that appear necessary or desirable, as demonstrated by the experience gained from the applicationof the Standard. Approved revisions will be published periodically.

The Committee welcomes proposals for revisions to this Standard. Such proposals should beas specific as possible, citing the paragraph number(s), the proposed wording, and a detaileddescription of the reasons for the proposal, including any pertinent documentation.

Interpretations. Upon request, the B16 Committee will render an interpretation of any require-ment of the Standard. Interpretations can only be rendered in response to a written request sentto the Secretary of the B16 Standards Committee.

The request for interpretation should be clear and unambiguous. It is further recommendedthat the inquirer submit his/her request in the following format:

Subject: Cite the applicable paragraph number(s) and the topic of the inquiry.Edition: Cite the applicable edition of the Standard for which the interpretation is

being requested.Question: Phrase the question as a request for an interpretation of a specific requirement

suitable for general understanding and use, not as a request for an approvalof a proprietary design or situation. The inquirer may also include any plansor drawings, which are necessary to explain the question; however, theyshould not contain proprietary names or information.

Requests that are not in this format will be rewritten in this format by the Committee priorto being answered, which may inadvertently change the intent of the original request.

ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.

Attending Committee Meetings. The B16 Standards Committee regularly holds meetings, whichare open to the public. Persons wishing to attend any meeting should contact the Secretary ofthe B16 Standards Committee.

vi

ASME B16.36-2006

ORIFICE FLANGES

1 SCOPE

1.1 General

This Standard covers flanges (similar to those coveredin ASME B16.5) that have orifice pressure differentialconnections. Coverage is limited to the following:

(a) welding neck flanges Classes 300, 600, 900, 1500,and 2500. U.S. Customary units are presented inMandatory Appendix I.

(b) slip-on and threaded Class 300.(c) welding neck flanges Class 400 in U.S. Customary

units in Mandatory Appendix II.

1.2 References

Codes, standards, and specifications containing provi-sions to the extent referenced herein constitute require-ments of this Standard. These reference documents arelisted in Mandatory Appendix III.

1.3 Quality Systems

Nonmandatory requirements relating to the productmanufacturer’s Quality System Program are describedin Nonmandatory Appendix A.

1.4 Relevant Units

This Standard states values in both metric and U.S.Customary units. As an exception, diameter of bolts andflange bolt holes are expressed in inch units only. Thesesystems of units are to be regarded separately as stan-dard. Within the text, the U.S. Customary units areshown in parentheses or in separate tables. The valuesstated in each system are not exact equivalents; there-fore, it is required that each system of units be usedindependently of the other. Except for diameter of boltsand flange bolt holes, combining values from the twosystems constitutes nonconformance with the standard.Except for Class 400 the values in U.S. Customary unitsare in Mandatory Appendix I. The main text of thisStandard does not contain requirements for Class 400welding neck flange; however, Mandatory Appendix IIdoes contain requirements for this class, expressed inU.S. Customary units only.

1.5 Convention

For the purposes of determining conformance withthis Standard, the convention for fixing significant digitswhere limits and maximum and minimum values arespecified, shall be rounded as defined in ASTM Practice

1

E 29. This requires that an observed or calculated valueshall be rounded off to the nearest unit in the last right-hand digit used for expressing the limit. Decimal valuesand tolerances do not imply a particular method of mea-surements.

1.6 Denotation

1.6.1 Pressure Rating Designation(a) Class, followed by a dimensionless number, is the

designation for pressure–temperature ratings as follows:Classes 300 600 900 1500 2500.

(b) Class 400 is retained in the U.S. Customary tables.

1.6.2 Sizes. NPS, followed by a dimensionlessnumber, is the designation for the nominal flange size.NPS is related to the reference nominal diameter, DN,used in international standards. The relationship is, typi-cally, as follows:

NPS DN

1 2511⁄2 402 50

21⁄2 653 804 100

GENERAL NOTE: For NPS ≥ 4, the related DN p 25 (NPS).

1.7 Service Conditions

Criteria for selection of materials suitable for the par-ticular fluid service are not within the scope of thisStandard.

2 PRESSURE–TEMPERATURE RATINGS

The pressure–temperature ratings, including all userecommendations and limitations, and the method ofrating given in ASME B16.5 apply to these flanges.

3 MATERIAL

3.1 General

Flange materials shall be in accordance with therequirements of ASME B16.5.

3.2 Bolting

Bolting material recommendations are given inASME B16.5.

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ASME B16.36-2006

3.3 Plugs

Pressure retaining plugs shall conform toASME B16.11, unless otherwise agreed between pur-chaser and manufacturer. Plug material shall be at leastas corrosion resistant as the corresponding flangematerial.

4 SIZE

Orifice flange sizes are indicated by the nominal pipesize to which they are attached. Only those listed inTables 1 through 5; Tables I-1 through I-5, andMandatory Appendix II are considered standard.

5 MARKING

Flanges shall be marked as required in ASME B16.5.For welding neck flanges only, the bore diameter shallbe marked.

6 FLANGE FACING FINISH

The finish of contact faces shall conform to the require-ments of ASME B16.5.

7 GASKETS FOR RAISED FACE FLANGES

7.1 Gasket Thickness

Flange dimensions are based on the use of 1.5 mm(0.06 in.) thick gaskets.

7.2 Flange Gaskets Requiring Dimensional Changes

When the location of the pressure tap with respect tothe orifice plate is critical to the service and meteringconditions, its location may be altered to accommodateother than 1.5 mm (0.06 in.) thick gaskets or ring typejoint gaskets whose thickness may vary from that listedin in Tables 2, 3, 4, and 5 or those listed in Tables I-2,I-3, I-4, and I-5 or Mandatory Appendix II.

The alteration of location may also be accomplishedby the removal of 2 mm (0.06 in.) from the raised faceof the flange. If an original 2 mm (0.06 in.) high raisedface is removed, the user is cautioned to limit the outsidediameter of the gasket or orifice plate to the tabulatedR dimension.

8 PRESSURE TAPS

8.1 General

Each orifice flange shall be provided with two pres-sure tap holes extending radially from the outside diam-eter of the flange to the inside diameter of the flange.Corner taps may be used on NPS 11⁄2 and smaller ifspace permits. See Fig. 1.

For ring joint flanges listed in Tables 2 through 5,Tables I-1 through I-5, and Mandatory Appendix II

2

where radial taps will interfere with the ring groove,angular meter taps, as illustrated in Fig. 2, will berequired. Each pressure tap hole shall be equipped witha pipe plug.

8.2 Location

8.2.1 Measurement. The 24 mm (0.94 in.) dimensionfor raised face and 19 mm (0.75 in.) for ring joint shallbe measured at the bore.

8.2.2 Identification. For ring joint flanges requiringalteration of pressure tap location due to interferencewith the ring groove other than methods provided inthis Standard, such alteration shall be identified peragreement between purchaser and manufacturer.

8.3 Pipe Connection

Unless otherwise specified, pressure tap holes may beeither tapped 1⁄2 NPT in accordance with ASME B1.20.1or 1⁄2 NPS socket connection in accordance withASME B16.11.

9 JACK SCREW PROVISION

9.1 Location

Each flange shall have a machine bolt mounted in ahole drilled on the flange bolt circle center line at 90 degfrom the pressure taps, for use as a jack screw. Machinebolt shall be regular with one heavy hex nut. See Fig. 3.

9.2 Slot for Nut

A slot shall be provided in the flange 2 mm (0.06 in.)wider than the width across flats of the nut. The depth ofthe slot shall admit the nut so that there is no interferencewith the joining of the flanges when bolted togetherwithout orifice plate.

9.3 Tapped Hole

As an alternative to para. 9.2, a tapped hole maybe provided and the hex nut omitted when agreed onbetween the purchaser and the manufacturer.

10 FLANGE DIMENSIONS

Dimensions are listed in Tables 1, 2, 3, 4, and 5, formetric, and Tables I-1, I-2, I-3, I-4, and I-5, andMandatory Appendix II for U.S. Customary.

11 FLANGE THREADS

Threaded flanges shall have an American NationalStandard taper pipe thread conforming toASME B1.20.1.

(a) The thread shall be concentric with the axis of theflange. Variations in alignment shall not exceed 5 mm/M(0.06 in./ft).

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ASME B16.36-2006

(b) The flanges are made with counterbores at theback of the flange and the threads shall be chamferedto the diameter of the counterbore at an angle of approxi-mately 45 deg with the axis of the thread to afford easyentrance in making a joint. The counterbore and chamfershall be concentric with the thread.

(c) In order to permit the pipe to be inserted to theface of the flange, the threads should have full rootdiameters through to the face of the flange, or shall havea counterbore at the face of the flange.

(d) The gaging notch of the working gage shall comeflush with the bottom of the chamfer in all threadedflanges and shall be considered as being the intersectionof the chamfer cone and the pitch cone of the thread.This depth of chamfer is approximately equal to one-halfthe pitch of the thread.

(e) The maximum allowable thread variation is oneturn large or small from the gaging notch.

3

12 TOLERANCES

Tolerances on all dimensions shall be as shown inASME B16.5 except for those shown below.

12.1 Pressure Tap Location

Tolerance on location of center of pressure tap hole1

from flange face shall be(a) ±0.5 mm (±0.02 in.) for flanges smaller than NPS 4(b) ±0.8 mm (±0.03 in.) for flanges NPS 4 and larger

12.2 Bore Diameter

Bore diameter tolerance (welding neck flanges only)is ±0.5% of nominal value.

1 See para. 8.2.

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ASME B16.36-2006

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2.6

122

17 ⁄ 834

535

512

381.

067

512

3.9

283

R58

381.

0014

.27

23.0

11.

539

.745

132

3.8

SeeNote(4).

12.7

571.

616

21 ⁄ 82

380

400

1441

2.8

750

133.

429

8R6

341

9.10

15.8

826

.97

2.4

44.4

495

355.

612

.763

5.0

1623 ⁄ 8

21 ⁄ 441

544

516

469.

982

514

6.1

311

R67

469.

9017

.48

30.1

82.

450

.855

240

6.4

12.7

704.

816

25 ⁄ 821 ⁄ 2

450

485

1853

3.4

915

162.

032

7R7

153

3.40

17.4

830

.18

2.4

50.8

597

457.

212

.777

4.7

1627 ⁄ 8

23 ⁄ 450

053

520

584.

298

517

7.8

356

R75

584.

2017

.48

33.3

22.

454

.064

150

8.0

12.7

831.

816

31 ⁄ 83

545

570

2469

2.2

117

020

3.2

406

R79

692.

1520

.62

36.5

32.

458

.776

260

9.6

12.7

990.

616

35 ⁄ 831 ⁄ 2

620

660

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inm

illim

eter

s,ex

cept

for

bolt

san

dbo

ltho

les.

(b)

All

othe

rdi

men

sion

sar

ein

acco

rdan

cew

ith

ASM

EB

16.5

.(c

)Ri

ngjo

int

flang

esla

rger

than

NPS

6w

illre

quir

ean

gul a

rm

eter

taps

show

nin

Fig.

2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

6m

m(0

.25

in.)

for

NP S

1–12

and

10m

m(0

.38

in.)

for

NPS

14–

24.

Bol

tle

ngth

sfo

rri

ngty

pejo

int

flang

esin

clud

eal

low

ance

of15

mm

(0.6

2in

.)fo

rN

PS1–

6.(4

)B

ore

isto

besp

ecifi

edby

the

purc

hase

r.

7

ASME B16.36-2006

Tabl

e5

Clas

s25

00O

rific

eFl

ange

s,W

eldi

ngN

eck

24

BT

T d

rill

mu

st b

e

free

fro

m b

urr

s

t f6

Y

A

Ra

ise

d F

ace

Rin

g T

yp

e J

oin

t

Sp

ecia

l O

ne

- o

r

Tw

o-P

iece

Rin

g

an

d O

rifi

ce

Pla

te A

sse

mb

ly

Gro

ov

e

De

tail

X

1 /2

NP

T

[No

te (

1)]

OR19

23 d

eg

t fEY

P

F

E

r

W

Dia

m-

Rin

gTy

peJo

int

eter

ofD

rilli

ngTe

mpl

ate

Leng

thof

Out

side

Min

imum

Spe

cial

Hub

Pres

-S

tud

Bol

tsD

iam

eter

Out

side

Thic

k-Le

ngth

Rad

ius

Ova

lD

iam

-D

iam

eter

sure

Dia

m-

[(2)

,(3

)]N

omin

alof

Rai

sed

Dia

met

erne

ssof

Thro

ugh

Gro

ove

Pitc

hG

roov

eG

roov

eat

Rin

get

erof

Beg

inni

ngCo

nn-

eter

ofN

um-

Dia

m-

Dia

m-

Pipe

Face

,of

Flan

ge,

Flan

ge,

Hub

,N

um-

Dia

met

er,

Dep

th,

Wid

th,

Bot

tom

,H

eigh

t,H

ub,

ofCh

amfe

r,B

ore,

ecti

on,

Bol

tbe

rof

eter

ofet

erof

Rai

sed

Rin

gS

ize

RO

t fY

ber

PE

Fr

WX

AB

TTCi

rcle

Hol

esH

oles

Bol

tsFa

ceJo

int

150

.816

038

.192

R18

60.3

36.

358.

740.

825

.457

33.5

6.4

108.

04

17 ⁄ 8

150

160

11 ⁄ 273

.020

544

.511

1R2

382

.55

7.92

11.9

10.

827

.079

48.3

6.4

146.

04

11 ⁄ 411 ⁄ 8

180

190

292

.123

550

.812

7R2

610

1.60

7.92

11.9

10.

827

.095

60.3

6.4

171.

48

11 ⁄ 81

185

195

21 ⁄ 210

4.8

265

57.2

143

R28

111.

139.

5313

.49

1.5

30.2

114

73.0

6.4

196.

88

11 ⁄ 411 ⁄ 8

205

215

312

7.0

305

66.7

168

R32

127.

009.

5313

.49

1.5

30.2

133

88.9

9.5

228.

68

13 ⁄ 811 ⁄ 4

230

240

415

7.2

355

76.2

190

R38

157.

1811

.13

16.6

61.

533

.316

511

4.3

12.7

273.

08

15 ⁄ 811 ⁄ 2

260

275

621

5.9

485

108.

027

3R4

722

8.60

12.7

019

.84

1.5

36.5

235

168.

312

.736

8.3

821 ⁄ 8

235

037

08

269.

955

012

7.0

318

R51

279.

4014

.27

23.0

11.

539

.730

521

9.1

SeeNote(4).

12.7

438.

212

21 ⁄ 82

385

405

1032

3.8

675

165.

141

9R5

534

2.90

17.4

830

.18

2.4

47.6

375

273.

012

.753

9.8

1225 ⁄ 8

21 ⁄ 249

051

512

381.

076

018

4.2

464

R60

406.

4017

.48

33.3

22.

450

.844

132

3.8

12.7

619.

112

27 ⁄ 823 ⁄ 4

540

570

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inm

illim

eter

s,ex

cept

for

bolt

san

dbo

ltho

les.

(b)

All

othe

rdi

men

sion

sar

ein

acco

rdan

cew

ith

ASM

EB

16.5

.(c

)Ri

ngjo

int

flang

esla

rger

than

NPS

3w

illre

quir

ean

gul a

rm

eter

taps

assh

own

inFi

g.2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

6m

m(0

.25

in.)

for

NP S

1–12

.B

olt

leng

ths

for

ring

type

join

tfla

nges

incl

ude

allo

wan

ceof

15m

m(0

.62

in.)

for

NPS

1–3.

(4)

Bor

eis

tobe

spec

ified

byth

epu

rcha

ser.

8

ASME B16.36-2006

Fig. 1 Corner Taps

Fig. 2 Angular Meter Tap for RTJ Flanges

Flan

ge

bo

re

Ring groove

5 mm (3/16 in. min.)

Flan

ge

O.D

.

19 mm(3/4 in.)

Fig. 3 Jack Bolts

Nut slot

Jack boltPlug

9

10

ASME B16.36-2006

MANDATORY APPENDIX IDIMENSIONAL DATA FOR CLASSES 300, 600, 900, 1500, AND

2500 FLANGES IN U.S. CUSTOMARY UNITS

This Appendix is an int egra l par t ofASME B16.36-2006, and it is placed after the main textfor convenience. Tables I-1 through I-5, included in this

11

Appendix, provide dimensional data in U.S. Customaryunits for the following: Classes 300, 600, 900, 1500, and2500 flanges.

ASME B16.36-2006

Tabl

eI-

1Cl

ass

300

Ori

fice

Flan

ges,

Wel

ding

Nec

k,S

lip-O

nan

dTh

read

ed

0.06

0.94

B1

TT

dri

ll m

ust

be

fr

ee f

rom

bu

rrs

TT

dri

ll [N

ote

(2)

]

t fY

1

A R O

We

ld N

eck

X

1 /2

NP

T

[No

te (

1)]

1 /2

NP

T

[No

te (

1)]

Y2

X QB

QF R

G

OT

hre

ad

ed

Sli

p-O

n

t f

0.06

0.94

TT

dri

ll [N

ote

(2)

]

1 /2

NP

T

[No

te (

1)]

X B2

Y2

t f

0.06

0.94

F

Out

side

Hub

Leng

thTh

roug

hH

ubD

iam

eter

ofCo

unte

rbor

eB

ore

Dri

lling

Tem

plat

eB

olt

Leng

thN

om-

Dia

met

erO

utsi

deM

inim

umD

iam

eter

Dia

met

erof

Coun

terb

ore

Dep

th[(

3),

(4)]

inal

ofR

aise

dD

iam

eter

Thic

knes

sS

lip-O

nan

dW

eld

Dia

met

erB

egin

ning

Wel

dPr

essu

reN

umbe

rD

iam

eter

Dia

met

er(F

rom

Face

)Pi

peFa

ce,

ofFl

ange

,of

Thre

aded

,N

eck,

ofH

ub,

ofCh

amfe

rB

ack,

Face

,S

lip-O

n,N

eck,

Conn

ecti

on,

Bol

tof

ofof

Mac

hine

Stu

dS

ize

RO

Flan

ge,

t fY 2

Y 1X

(W.N

.),

AQ

BQ

FF

GB

2B

1TT

Circ

leH

oles

Hol

esB

olts

Bol

tsB

olts

12.

004.

881.

441.

813.

192.

121.

321.

411.

301.

380.

691.

361 ⁄ 4

3.50

411

⁄ 16

5 ⁄ 84.

505.

0011 ⁄ 2

2.88

6.12

1.44

1.81

3.31

2.75

1.90

1.99

1.89

1.41

0.66

1.95

1 ⁄ 44.

504

13⁄ 1

63 ⁄ 4

4.75

5.25

23.

626.

501.

441.

883.

313.

312.

382.

502.

361.

440.

622.

441 ⁄ 4

5.00

811

⁄ 16

5 ⁄ 84.

505.

0021 ⁄ 2

4.12

7.50

1.44

1.94

3.44

3.94

2.88

3.00

2.84

1.69

0.50

2.94

1 ⁄ 45.

888

13⁄ 1

63 ⁄ 4

4.75

5.25

35.

008.

251.

442.

003.

444.

623.

503.

633.

461.

750.

503.

573 ⁄ 8

6.62

813

⁄ 16

3 ⁄ 44.

755.

25

46.

1910

.00

1.44

2.06

3.56

5.75

4.50

4.63

4.45

1.81

0.50

4.57

1 ⁄ 27.

888

13⁄ 1

63 ⁄ 4

4.75

5.25

68.

5012

.50

1.44

2.06

3.88

8.12

6.63

6.75

6.57

1.81

0.25

6.72

1 ⁄ 210

.62

127 ⁄ 8

3 ⁄ 44.

755.

258

10.6

215

.00

1.56

2.38

4.31

10.2

58.

638.

758.

552.

120.

388.

721 ⁄ 2

13.0

012

17 ⁄ 8

5.00

5.75

1012

.75

17.5

01.

812.

564.

5612

.62

10.7

510

.88

1 ⁄ 215

.25

1611 ⁄ 8

15.

756.

5012

15.0

020

.50

1.94

2.81

5.06

14.7

512

.75

12.8

8

SeeNote(5).

1 ⁄ 217

.75

1611 ⁄ 4

11 ⁄ 86.

257.

00

1416

.25

23.0

02.

062.

945.

5616

.75

14.0

014

.14

1 ⁄ 220

.25

2011 ⁄ 4

11 ⁄ 86.

507.

2516

18.5

025

.50

2.19

3.19

5.69

19.0

016

.00

See

Not

e(6

).16

.16

1 ⁄ 222

.50

2013 ⁄ 8

11 ⁄ 47.

007.

7518

21.0

028

.00

2.31

3.44

6.19

21.0

018

.00

18.1

81 ⁄ 2

24.7

524

13 ⁄ 811 ⁄ 4

7.25

8.00

2023

.00

30.5

02.

443.

696.

3123

.12

20.0

020

.20

1 ⁄ 227

.00

2413 ⁄ 8

11 ⁄ 47.

508.

5024

27.2

536

.00

2.69

4.12

6.56

27.6

224

.00

24.2

51 ⁄ 2

32.0

024

15 ⁄ 811 ⁄ 2

8.25

9.50

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)W

eld

neck

flang

esN

PS3

and

smal

ler

are

iden

tica

lto

C las

s60

0fla

nges

and

may

beso

mar

ked.

(c)

All

othe

rdi

men

sion

sar

ein

acco

rdan

cew

ith

ASM

EB

16.5

.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)Fo

rsl

ip-o

nan

dth

read

edfla

nges

,ve

rify

that

TTdr

illin

gex

tend

sto

insi

dedi

amet

erof

pipe

afte

ras

sem

b ly

and

isfr

eefr

ombu

rrs.

(3)

Bol

tle

ngth

sin

clud

eal

low

ance

for

orifi

cean

dga

ske t

thic

knes

sof

0.25

in.

for

NPS

1–12

and

0.38

in.

for

NPS

14–

24.

(4)

Inco

nfor

man

cew

ith

ASM

EB

16.5

,st

udbo

ltle

ngth

sdo

not

incl

ude

poin

the

ight

s.(5

)B

ore

diam

eter

ofw

eld

neck

flang

esis

tobe

spec

ified

byth

epu

rcha

ser.

(6)

Thre

aded

flang

esar

efu

rnis

hed

inN

PS1–

8on

ly.

12

ASME B16.36-2006

Tabl

eI-

2Cl

ass

600

Ori

fice

Flan

ges,

Wel

ding

Nec

k

0.94

B

TT

dri

ll m

ust

be

fr

ee f

rom

bu

rrs

t fH

Y

A

Ra

ise

d F

ace

Rin

g T

yp

e J

oin

t

Sp

ecia

l O

ne

- o

r

Tw

o-P

iece

Rin

g a

nd

Ori

fice

Pla

te A

sse

mb

lyG

roo

ve

De

tail

X1 /

2 N

PT

[N

ote

(1)

]

OR0.

75

23 d

eg

t fEY

P

F

E

r

W

Out

side

Dia

m-

Dri

lling

Tem

plat

eR

ing

Type

Join

tLe

ngth

ofD

iam

eter

Hei

ght

Dia

m-

Hub

eter

ofD

iam

eter

ofS

tud

Bol

tsof

Out

side

Min

imum

Leng

thof

Spe

cial

eter

Dia

met

erPr

essu

reN

um-

Dia

m-

Hol

es[(

2),

(3)]

Nom

inal

Rai

sed

Dia

met

erTh

ick-

Thro

ugh

Rai

sed

Gro

ove

Pitc

hG

roov

eG

roov

eR

adiu

sat

Ova

lR

ing

ofB

egin

ning

Conn

-be

ret

erPi

peFa

ce,

ofFl

ange

,ne

ssof

Hub

,Fa

ce,

Num

-D

iam

eter

,D

epth

,W

idth

,B

otto

m,

Hei

ght,

Hub

,of

Cham

fer,

Bor

e,ec

tion

,B

olt

ofR

aise

dR

ing

ofR

aise

dR

ing

Siz

eR

OFl

ange

,t f

YH

ber

PE

Fr

WX

AB

TTCi

rcle

Hol

esFa

ceJo

int

Bol

tsFa

ceJo

int

12.

004.

881.

443.

190.

06R1

62.

000

0.25

00.

344

0.03

1.00

2.12

1.32

1 ⁄ 43.

504

0.69

0.75

5 ⁄ 85.

005.

5011 ⁄ 2

2.88

6.12

1.44

3.32

0.06

R20

2.68

80.

250

0.34

40.

031.

002.

751.

901 ⁄ 4

4.50

40.

810.

883 ⁄ 4

5.25

5.50

23.

626.

501.

443.

320.

06R2

33.

250

0.31

20.

469

0.03

1.06

3.31

2.38

1 ⁄ 45.

008

0.69

0.75

5 ⁄ 85.

005.

5021 ⁄ 2

4.12

7.50

1.44

3.44

0.06

R26

4.00

00.

312

0.46

90.

031.

063.

942.

881 ⁄ 4

5.88

80.

810.

883 ⁄ 4

5.25

5.75

35.

008.

251.

443.

440.

06R3

14.

875

0.31

20.

469

0.03

1.06

4.62

3.50

3 ⁄ 86.

628

0.81

0.88

3 ⁄ 45.

255.

75

46.

1910

.75

1.50

4.00

0.25

R37

5.87

50.

312

0.46

90.

031.

066.

004.

501 ⁄ 2

8.50

81.

001.

007 ⁄ 8

6.00

6.50

68.

5014

.00

1.88

4.62

0.25

R45

8.31

20.

312

0.46

90.

031.

068.

756.

631 ⁄ 2

11.5

012

1.12

1.12

17.

007.

508

10.6

216

.50

2.19

5.25

0.25

R49

10.6

250.

312

0.46

90.

031.

0610

.75

8.63

1 ⁄ 213

.75

121.

251.

2511 ⁄ 8

7.75

8.25

1012

.75

20.0

02.

506.

000.

25R5

312

.750

0.31

20.

469

0.03

1.06

13.5

010

.75

SeeNote(4).

1 ⁄ 217

.00

161.

381.

3811 ⁄ 4

8.75

9.25

1215

.00

22.0

02.

626.

120.

25R5

715

.000

0.31

20.

469

0.03

1.06

15.7

512

.75

1 ⁄ 219

.25

201.

381.

3811 ⁄ 4

9.00

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5

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)W

eldn

eck

flang

esN

PS3

and

smal

ler

are

iden

tica

lto

C las

s30

0fla

nges

exce

ptfo

rbo

ltin

gan

dm

aybe

used

for

such

serv

ice.

(c)

All

othe

rdi

men

sion

sar

ein

acco

rdan

cew

ith

ASM

EB

16.5

.(d

)Ri

ngjo

int

flang

ein

NPS

24w

illre

quir

ean

angu

lar

met

erta

pas

show

nin

Fig.

2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)B

olt

leng

ths

for

rais

edfa

cefla

nges

incl

ude

allo

wan

c efo

ror

ifice

and

gask

etth

ickn

ess

of0.

25in

.fo

rN

PS1–

12an

d0.

38in

.fo

rN

PS14

–24

.B

olt

leng

ths

for

ring

type

join

tfla

nges

incl

ude

allo

wan

ceof

0.62

in.

for

NPS

1–10

,0.

75in

.fo

rN

PS12

–18

,an

d0.

88in

.fo

rN

PS20

.(3

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

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ths

dono

tin

clud

epo

int

heig

hts.

(4)

Bor

eis

tobe

spec

ified

byth

epu

rcha

ser.

13--`,,```,,``,,,,,,`````,`,```,``-`-`,,`,,`,`,,`---

ASME B16.36-2006

Tabl

eI-

3Cl

ass

900

Ori

fice

Flan

ges,

Wel

ding

Nec

k

0.94

B

TT

dri

ll m

ust

be

fr

ee f

rom

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rrs

t f0.

25

Y

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ise

d F

ace

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g T

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e J

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t

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l O

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g a

nd

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fice

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te A

sse

mb

ly

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ov

e

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tail

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2 N

PT

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ote

(1)

]

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75

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t fEY

P

F

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r

W

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m-

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gTy

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int

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lling

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plat

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umH

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ick-

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thR

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eter

Pres

sure

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,(3

)]N

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sed

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ugh

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idth

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Join

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0

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)A

llot

her

dim

ensi

ons

are

inac

cord

ance

wit

hA

SME

B16

.5.

(c)

Ring

join

tfla

nges

larg

erth

anN

PS12

will

requ

ire

angu

l ar

met

erta

psas

show

nin

Fig.

2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

0.25

in.

for

NPS

3–12

and

0.38

in.

for

NPS

14–

24.

Bol

tle

ngth

sfo

rri

ngty

pejo

int

flang

esin

clud

eal

low

ance

of0.

62in

.fo

rN

PS3–

10an

d0.

75in

.fo

rN

PS12

.(4

)B

ore

isto

besp

ecifi

edby

the

purc

hase

r.

14--`,,```,,``,,,,,,`````,`,```,``-`-`,,`,,`,`,,`---

ASME B16.36-2006

Tabl

eI-

4Cl

ass

1500

Ori

fice

Flan

ges,

Wel

ding

Nec

k

0.94

B

TT

dri

ll m

ust

be

fr

ee f

rom

bu

rrs

t f0.

25

Y

A

Ra

ise

d F

ace

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g T

yp

e J

oin

t

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ecia

l O

ne

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r

Tw

o-P

iece

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g a

nd

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fice

Pla

te A

sse

mb

ly

Gro

ov

e

De

tail

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2 N

PT

[N

ote

(1)

]

OR0.

75

23 d

eg

t fEY

P

F

E

r

W

Rin

gTy

peJo

int

Dia

m-

Dri

lling

Tem

plat

eLe

ngth

ofO

utsi

deM

inim

umH

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Dia

met

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thR

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peci

alD

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iam

eter

Pres

sure

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)]N

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sed

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ugh

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0

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)A

llot

her

dim

ensi

ons

are

inac

cord

ance

wit

hA

SME

B16

.5.

(c)

Ring

join

tfla

nges

larg

erth

anN

PS6

will

requ

ire

angu

l ar

met

erta

pssh

own

inFi

g.2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

0.25

in.

for

NPS

1–12

and

0.38

in.

for

NPS

14–

24.

Bol

tle

ngth

sfo

rri

ngty

pejo

int

flang

esin

clud

eal

low

ance

of0.

62in

.fo

rN

PS1–

6.(4

)B

ore

isto

besp

ecifi

edby

the

purc

hase

r.

15

ASME B16.36-2006

Tabl

eI-

5Cl

ass

2500

Ori

fice

Flan

ges,

Wel

ding

Nec

k

0.94

BT

T d

rill

mu

st b

e

free

fro

m b

urr

s

t f

Y

A

Ra

ise

d F

ace

Rin

g T

yp

e J

oin

t

Sp

ecia

l O

ne

- o

r

Tw

o-P

iece

Rin

g

an

d O

rifi

ce

Pla

te A

sse

mb

ly

Gro

ov

e

De

tail

X

1 /2

NP

T

[No

te (

1)]

OR

23 d

eg

t fEY

P

F

E

r

W

0.25

0.75

Dia

m-

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gTy

peJo

int

eter

ofD

rilli

ngTe

mpl

ate

Out

side

Min

imum

Spe

cial

Hub

Pres

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ngth

ofS

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Dia

met

erO

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deTh

ick-

Leng

thR

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val

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m-

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met

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reD

iam

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olts

[(2)

,(3

)]N

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alof

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ge,

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06.

5016

.50

R55

13.5

000.

688

1.18

80.

091.

8814

.75

10.7

51 ⁄ 2

21.2

512

2.62

21 ⁄ 219

.25

20.2

512

15.0

030

.00

7.25

18.2

5R6

016

.000

0.68

81.

312

0.09

2.00

17.3

812

.75

1 ⁄ 224

.38

122.

8823 ⁄ 4

21.2

522

.50

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)A

llot

her

dim

ensi

ons

are

inac

cord

ance

wit

hA

SME

B16

.5.

(c)

Ring

join

tfla

nges

larg

erth

anN

PS3

will

requ

ire

angu

l ar

met

erta

psas

show

nin

Fig.

2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

0.25

in.

for

NPS

1–12

.B

olt

leng

ths

for

ring

type

join

tfla

nges

incl

ude

allo

wan

ceo f

0.62

in.

for

NPS

1–3.

(4)

Bor

eis

tobe

spec

ified

byth

epu

rcha

ser.

16

ASME B16.36-2006

MANDATORY APPENDIX IIDIMENSIONAL DATA FOR CLASS 400 FLANGES IN

U.S. CUSTOMARY UNITS

This Appendix is an int egra l par t ofASME B16.36-2006, and it is placed after the main textfor convenience. Table II-1, included in this Appendix,

17

provides dimensional data in U.S. Customary units forClass 400 flanges.

ASME B16.36-2006

Tabl

eII-

1Cl

ass

400

Ori

fice

Flan

ges,

Wel

ding

Nec

k

0.94

B

TT

dri

ll m

ust

be

fr

ee f

rom

bu

rrs

t f

Y

A

Ra

ise

d F

ace

Rin

g T

yp

e J

oin

t

Sp

ecia

l O

ne

- o

r

Tw

o-P

iece

Rin

g a

nd

Ori

fice

Pla

te A

sse

mb

ly

Gro

ov

e

De

tail

X1 /

2 N

PT

[N

ote

(1)

]

OR0.

75

23 d

eg

t fEY

P

F

E

r

W

0.25

Rin

gTy

peJo

int

Dia

m-

Dri

lling

Tem

plat

eLe

ngth

ofO

utsi

deM

inim

umH

ubet

erof

Stu

dB

olts

Dia

met

erO

utsi

deTh

ick-

Leng

thR

adiu

sS

peci

alD

iam

-D

iam

eter

Pres

sure

Dia

m-

[(2)

,(3

)]N

omin

alof

Rai

sed

Dia

met

erne

ssof

Thro

ugh

Gro

ove

Pitc

hG

roov

eG

roov

eat

Ova

lR

ing

eter

ofB

egin

ning

Conn

-et

erof

Num

-D

iam

-D

iam

-Pi

peFa

ce,

ofFl

ange

,Fl

ange

,H

ub,

Num

-D

iam

eter

,D

epth

,W

idth

,B

otto

m,

Hei

ght,

Hub

,of

Cham

fer,

Bor

e,ec

tion

,B

olt

ber

ofet

erof

eter

ofR

aise

dR

ing

Siz

eR

Ot f

Ybe

rP

EF

rW

XA

BTT

Circ

leH

oles

Hol

esB

olts

Face

Join

t

1 11 ⁄ 2 2Fo

rN

PS3

and

smal

ler,

use

Clas

s60

0.21 ⁄ 2 3 4

6.19

10.0

01.

503.

50R3

75.

875

0.31

20.

469

0.03

1.06

5.75

4.50

1 ⁄ 27.

888

1.00

7 ⁄ 85.

506.

006

8.50

12.5

01.

624.

06R4

58.

312

0.31

20.

469

0.03

1.06

8.12

6.63

1 ⁄ 210

.62

121.

007 ⁄ 8

6.25

6.50

810

.62

15.0

01.

884.

62R4

910

.625

0.31

20.

469

0.03

1.06

10.2

58.

631 ⁄ 2

13.0

012

1.12

16.

757.

2510

12.7

517

.50

2.12

4.88

R53

12.7

500.

312

0.46

90.

031.

0612

.62

10.7

51 ⁄ 2

15.2

516

1.25

11 ⁄ 87.

508.

0012

15.0

020

.50

2.25

5.38

R57

15.0

000.

312

0.46

90.

031.

0614

.75

12.7

51 ⁄ 2

17.7

516

1.38

11 ⁄ 48.

008.

50

1416

.25

23.0

02.

395.

88R6

116

.500

0.31

20.

469

0.03

1.06

16.7

514

.00

1 ⁄ 220

.25

201.

3811 ⁄ 4

8.25

9.00

1618

.50

25.5

02.

506.

00R6

518

.500

0.31

20.

469

0.03

1.19

19.0

016

.00

SeeNote(4).

1 ⁄ 222

.50

201.

5013 ⁄ 8

8.75

9.25

1821

.00

28.0

02.

626.

50R6

921

.000

0.31

20.

469

0.03

1.19

21.0

018

.00

1 ⁄ 224

.75

241.

5013 ⁄ 8

9.25

9.50

2023

.00

30.5

02.

756.

62R7

323

.000

0.37

50.

531

0.06

1.25

23.1

220

.00

1 ⁄ 227

.00

241.

6211 ⁄ 2

9.75

10.2

524

27.2

536

.00

3.00

6.88

R77

27.2

500.

438

0.65

60.

061.

4427

.62

24.0

01 ⁄ 2

32.0

024

1.88

13 ⁄ 411

.00

11.5

0

GEN

ERA

LN

OTE

S:

(a)

Dim

ensi

ons

are

inin

ches

.(b

)A

llot

her

dim

ensi

ons

are

inac

cord

ance

wit

hA

SME

B16

.5.

(c)

Ring

join

tfla

nge

inN

PS24

will

requ

ire

anan

gula

rm

eter

tap

assh

own

inFi

g.2.

NO

TES

:(1

)O

ther

NPT

size

sm

aybe

furn

ishe

dif

requ

ired

.(2

)In

conf

orm

ance

wit

hA

SME

B16

.5,

stud

bolt

leng

ths

dono

tin

clud

epo

int

heig

hts.

(3)

Bol

tle

ngth

sfo

rra

ised

face

flang

esin

clud

eal

low

anc e

for

orifi

cean

dga

sket

thic

knes

sof

0.25

in.

for

NPS

4–12

and

0.38

in.

for

NPS

14–

24.

Bol

tle

ngth

sfo

rri

ngty

pejo

int

flang

esin

clud

eal

low

ance

of0.

62in

.fo

rN

PS4–

10,

0.75

in.

for

NPS

12–

18,

and

0.88

in.

for

NPS

20.

(4)

Bor

eis

tobe

spec

ified

byth

epu

rcha

ser.

18

ASME B16.36-2006

MANDATORY APPENDIX IIIREFERENCES

The following is a list of publications referenced inthis Standard.

ASME B1.20.1-1983 (R2001), Pipe Threaded, GeneralPurpose (Inch)1

ASME B16.5-2003, Pipe Flanges and Flanged Fittings1

ASME B16.11-2001, Forged Fittings, Socket-Welding andThreaded1

ASME B16.21-1992, Nonmetallic Gaskets for PipeFlanges1

ASME Boiler and Pressure Vessel Code, 2004 Edition:Section I, Power Boilers; Section II, Materials; Section

1 May also be obtained from the American National StandardsInstitute (ANSI), 25 West 43rd Street, New York, NY 10036

19

III, Nuclear Power Plant Components; Section VIII,Divisions 1 and 2, Pressure Vessels1

Publisher: The American Society of MechanicalEngineers (ASME), Three Park Avenue, New York,NY 10016-5990; Order Department: 22 Law Drive, P.O.Box 2300, Fairfield, NJ 07007-2300

ISO 9000: 2000, Quality Management Systems — Funda-mentals and Vocabulary1

ISO 9001: 2000, Quality Management Systems —Requirements1

ISO 9004: 2000, Quality Management Systems — Guide-lines for Performance Improvements1

Publisher: International Organization for Standardiza-tion (ISO), 1 ch. de la Voie-Creuse, Case postale 56,CH-1211 Geneve 20, Switzerland/Suisse

ASME B16.36-2006

NONMANDATORY APPENDIX AQUALITY SYSTEM PROGRAM

The products manufactured in accordance with thisStandard shall be produced under a quality system pro-gram following the principles of an appropriate stan-dard from the ISO 9000 series.1 A determination of theneed for registration and/or certification of the product

1 The series is also available from the American NationalStandards Institute (ANSI) and the American Society for Quality(ASQ) as American National Standards that are identified by aprefix “Q” replacing the prefix “ISO.” Each standard of the seriesis listed under Mandatory Appendix III.

20

manufacturer’s quality system program by an indepen-dent organization shall be the responsibility of the man-ufacturer. The detailed documentation demonstratingprogram compliance shall be available to the purchaserat the manufacturer ’s facility. A written summarydescription of the program utilized by the product man-ufacturer shall be available to the purchaser uponrequest. The product manufacturer is defined as theentity whose name or trademark appears on the productin accordance with the marking or identification require-ments of this Standard.

B16 AMERICAN NATIONAL STANDARDS FOR PIPING,PIPE FLANGES, FITTINGS, AND VALVES

Scheme for the Identification of Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A13.1-1996 (R2002)Pipe Threads, General Purpose (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.1-1983 (R2001)Dryseal Pipe Threads (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.3-1976 (R2003)Gray Iron Pipe Flanges and Flanged Fittings (Classes 25, 125, and 250) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.1-2005Malleable Iron Threaded Fittings: Classes 150 and 300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.3-1998Gray Iron Threaded Fittings: Classes 125 and 250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.4-2006Pipe Flanges and Flanged Fittings NPS 1⁄2 Through NPS 24 Metric/Inch Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.5-2003Factory-Made Wrought Buttwelding Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.9-2003Face-to-Face and End-to-End Dimensions of Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B16.10-2000 (R2003)Forged Fittings, Socket-Welding and Threaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.11-2005Cast Iron Threaded Drainage Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.12-1998Ferrous Pipe Plugs, Bushings, and Locknuts with Pipe Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.14-1991Cast Copper Alloy Threaded Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.15-2006Cast Copper Alloy Solder Joint Pressure Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.18-2001Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B16.20-1998 (R2004)Nonmetallic Flat Gaskets for Pipe Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.21-2005Wrought Copper and Copper Alloy Solder Joint Pressure Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.22-2001Cast Copper Alloy Solder Joint Drainage Fittings: DWV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.23-2002Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500, and 2500 . . . . . . . . . . . . . . . . . . . . . . . B16.24-2006Buttwelding Ends. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.25-2003Cast Copper Alloy Fittings for Flared Copper Tubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.26-2006Wrought Steel Buttwelding Short Radius Elbows and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.28-1994Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings — DWV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.29-2001Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 PSI (Sizes NPS 1⁄2 Through NPS 2). . . . . . . . . . B16.33-2002Valves — Flanged, Threaded, and Welding End. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.34-2004Orifice Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.36-2006Large Metallic Valves for Gas Distribution (Manually Operated, NPS 21⁄2 to 12, 125 psig Maximum) . . . . . . . . . . . . . . . .B16.38-1985 (R2005)Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.39-1998Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.40-2002Functional Qualification Requirements for Power Operated Active Valve Assemblies for Nuclear Power Plants . . . . . . . . .B16.41-1983 (R1989)Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.42-1998Manually Operated Metallic Gas Valves for Use in Aboveground Piping Systems Up To 5 PSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.44-2002Cast Iron Fittings for Sovent® Drainage Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.45-1998Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.47-2006Line Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.48-2005Factory-Made Wrought Steel Buttwelding Induction Bends for Transportation and Distribution Systems . . . . . . . . . . . . . . . . . . . . . B16.49-2000Wrought Copper and Copper Alloy Braze-Joint Pressure Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.50-2001Power Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.1-2004Fuel Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.2-1968Process Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.3-2004Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.4-2002Refrigeration Piping and Heat Transfer Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.5-2001Gas Transmission and Distribution Piping Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.8-2003Building Services Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.9-2004Slurry Transportation Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.11-2002Manual for Determining the Remaining Strength of Corroded Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31G-1991 (R2004)Welded and Seamless Wrought Steel Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B36.10M-2004Stainless Steel Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B36.19M-2004Self-Operated and Power-Operated Safety-Related Valves Functional Specification Standard . . . . . . . . . . . . . . . . . . . . . . .N278.1-1975 (R1992)

The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary catalog, or the latestinformation about our publications, call 1-800-THE-ASME (1-800-843-2763).

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* Information Central staff are not permitted to answer inquiries about the technical content of this code or standard. Information as towhether or not technical inquiries are issued to this code or standard is shown on the copyright page. All technical inquiries must besubmitted in writing to the staff secretary. Additional procedures for inquiries may be listed within.

J04606

ASME B16.36-2006

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