asme b16.36 - 1996 - orifice flanges

INDD BZb.36 88 - 2595512 0078093 T48 -

ASME-B16.36

ADOPTION NOTICE

ASME-B16.36, "Flanges, Orifice," was adopted on October 3, 1994 for use by the Department of Defense (DOD). Proposed changes by DOD activities must be submitted to the DOD Adopting Activity: Commanding Officer, Naval Construction Battalion Center, Code 156, 1000 23rd Avenue, Port Hueneme, CA 93043-4301. DOD activities may obtain copies of this standard from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. The private sector and other Government agencies may purchase copies from the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017.

Custodians: Army - ME Navy - YD-1 Air Force - 99

Adopting Activity Navy - YD-1

.

FSC 4730

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services

~~ -

STD-ASME B l b - 3 b - E N G L L77b - 0757b70 0577272 980

The American Society of Mechanical Engineers

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

ORIFICE LANCES .

ASME B16.36-1996 (Revision of ASMVANSI B16.36-1988)


, STD-ASME B L b - 3 b - E N G L L77b 0757b70 0577273 AL7

Date of Issuance: January 31, 1997

The 1996 edition of this Standard is being issued with an automatic addenda subscription service. The use of an addenda allows revisions made in response to public review comments or committee actions to be published as necessary; revisions published in addenda will become effective 6 months after the Date of Issuance of the addenda. The next edition of this Standard is scheduled for publication in 2001.

ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard. The interpretations will be included with the above addenda service. Interpretations are not part of the addenda to the Standard.

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This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Consensus Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment which provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

ASME does not "approve," "rate," or "endorse" any item, construction, proprietary device, or activity.

ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.

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No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise,

without the prior written permission of the publisher.

The American Society of Mechanical Engineers 345 East 47th Street, New York, NY 10017

Copyright Q 1997 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All Rights Reserved Printed in U.S.A.


FOREWORD

(This Foreword is not part of ASME 616.36-1996.)

August of 1956 marked the first recorded correspondence noting the lack of standardization for orifice flanges. There were, and still are, several codes for the performance and calibration of orifice flanges, but there had been no standardization of the flanges themselves. Over the ensuing 3 years, correspondence continued among the Instrument Society of America, American Gas Association, and the B 16 Standards Committee.

On December 3, 1959, Subcommittee 3 (now Subcommittee C) of B16 authorized the appointment of a Task Force to undertake drafting of a standard. Although the intial work progressed smoothly, 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 draft from the Task Force. Comments and objections to this draft from members of Subcommittee C were resolved, and a redraft was approved by the Subcommittee late in 1974. The B16 Standards Committee was balloted in the spring of 1975 and approval was gained. Comments from B16 members from the gas industry requested that the Class 400 orifice flange be included, and the B16 Subcommittee C agreed to consider this for a possible addendum. The Standard was approved by ANSI on August 15, 1975.

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

In 1982, American National Standards Committee B16 was reorganized as an ASME Committee operating under procedures accredited by ANSI. In the 1988 edition, figures were added to illustrate jack bolts and corner taps, metric units have been omitted, and references to other standards have been updated. Following approval by the B 16 Main Committee and the ASME Supervisory Board, the Standard was approved as an American National Standard by ANSI on February 18, 1988.

This 1996 Edition adds angular meter taps for ring joint flanges in sizes not previously covered and includes several other revisions. Following approval by the B 16 Main Committee and the ASME Supervisory Board, this Standard was approved as an American National Standard by ANSI on November 6, 1996.

Requests for interpretations or suggestions for revisions should be sent to the Secretary, B 16 Committee, The American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, NY 10017.

... 111


ASME B16 COMMlllEE Standardization of Valves, Flanges, Fittings, Gaskets, and Valve

Actuators

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

OFFICERS

W. N. McLean, Chair R. A. Schmidt, Vice Chair K. M. Ciciora, Secretary

COMMITTEE PERSONNEL

W. L. Ballis, Columbia Gas Distribution Co., Columbus, Ohio R. R. Brodin, Fisher Controls International, Inc., Marshalltown, Iowa M. A. Clark, Nibco Inc., Elkhart, Indiana A. Cohen, Copper Development Association, Inc., New York, New York W. C. Farrell, Jr., Consultant, Birmingham, Alabama C. E. Floren, Mueller Co., Decatur, Illinois D. R. Frikken, Monsanto Co., St. Louis, Missouri M. W. Garland, Frick Co., Waynesboro, Pennsylvania J. C. Inch, Mueller Refrigeration Products Co., Hartsville, Tennessee G. A. Jolly, The Henry Vogt Machine Co., Louisville, Kentucky W. G. Knecht, Consultant, Williamsport, Pennsylvania R. A. Koester, The William Powell Co., Cincinnati, Ohio W. N. McLean, Newco Valve Co., Palos Park, Illinois M. L. Nayyar, Bechtel Corp., Gaithersburg, Maryland R. A. Schmidt, Ladish Co., Rucsellville, Arkansas W. M. Stephan, Flexitallic Inc., Pennsauken, New Jersey T. F. Ctroud, Ductile Iron Research Association, Birmingham, Alabama M. D. Wasicek, ABS Americas, Houston, Texas R. E. White, Richard E. White Et Associates, South Bend, Indiana D. A. Williams, Southern Company Services, Birmingham, Illinois L. A. Willis, Dow Chemical Co., Freepori, Texas W. R. Worley, Union Carbide Corp., South Charleston, West Virginia

PERSONNEL OF SUBCOMMllTEE C - STEEL FLANGES AND FLANGED FITTINGS

D. R. Frikken, Chair, Monsanto Co., St. Louis, Missouri K. M. Ciciora, Secretary, ASME International, New York, New York V. C. Bhasin, Sigmatech, Pittsburgh, Pennsylvania G. D. Conlee, Consultant, St. Louis, Missouri W. C. Farrell, Jr. Consultant, Birmingham, Alabama M. L. Henderson, Coffer Corp., Houston, Texas R. E. Johnson, Flowline Div., New Castle, Pennsylvania R. Koester, The William Powell Co., Cincinnati, Ohio R. Madewell, Flo-Bend Inc., Sand Springs, Oklahoma

V


~ -~ -~

S T D - A S M E B L b - 3 b - E N G L L77b 0757b70 057927b 52b

W. N. Mclean, Newco Valve Co., Palos Park, Illinois M. L. Nayyar, Bechtel Corp., Gaithersburg, Maryland R. A. Schmidt, Ladish Co., Russellville, Arkansas D. L. Shira, Taylor Forge, Cordova, Tennessee J. C. Thompson, Milwaukee Valve, Rising Sun, Maryland L. A. Willis, Dow Chemical Co., Freeport, Texas

vi


CONTENTS

Foreword ....................................................................... iii Standards Committee Roster ...................................................... v

1 2 3 4 5 6 7 8 9

10 11 12

Scope .................................................................... 1 Pressure-Temperature Ratings .............................................. 1 Material .................................................................. 1 Size ...................................................................... 1 Marking .................................................................. 1 Flange Facing Finish ...................................................... 2 Gaskets for Raised Face Flanges ........................................... 2 Pressure Taps ............................................................. 2 Jack Screw Provision ...................................................... 2 Dimensions ............................................................... 2 Flange Threads ............................................................ 2 Tolerances ................................................................ 3

Figures 1 Comer Taps .............................................................. 4 2 Jack Bolts ................................................................ 4 3 Angular Meter Tap for RTJ Flanges ....................................... 5

Tables 1 Class 300 Orifice Flanges. Welding Neck. Slip.On. and Threaded ............ 6 2 Class 400 Orifice Flanges. Welding Neck .................................. 8 3 Class 600 Orifice Flanges. Welding Neck .................................. 10 4 Class 900 Orifice Flanges. Welding Neck .................................. 12 5 Class 1500 Orifice Flanges. Welding Neck ................................. 14 6 Class 2500 Orifice Flanges. Welding Neck ................................. 16

Annex A Quality System Program ................................................... 17 B References ................................................................ 19

Interpretations ............................................................... 21

vii


1 SCOPE

1.1 General

ASME B16.36-1996

ORIFICE FLANGES Classes 300,400,600,900,1500, and 2500

This Standard covers flanges (similar to those covered in ASME B 16.5) that have orifice pressure diffential connections. Coverage is limited to the following:

(a) welding neck flanges Classes 300, 400, 600, 900, 1500, and 2500

(b) slip-on and threaded Class 300

1.2 References

1.2.1 Referenced Standards. Standards and specifications adopted by reference in this Standard are shown in Annex B, which is part of this Standard. It is not considered practical to identify the specific edition of each standard and specification in the individual references. Instead, the specific edition reference is identified in Annex B. A flange manufactured in accordance with earlier editions of the referenced standards and in all other respects conforming to this Standard will be considered to be in accordance with this Standard.

1.2.2 Codes and Regulations. A flange used under the jurisdiction of the ASME Boiler and Pressure Vessel Code, the ASME Code for Pressure Piping, or a governmental regulation is subject to any limitation of that Code or regulation. This includes any maximum temperature limitation, or rules governing the use of a material at low temperature, or provisions for operation at pressure exceeding the pressure-temperature ratings in this Standard.

1.3 Content

The requirements of this Standard include: (a) pressure ratings (6) marking (c) materials (d) dimensions (e) tolerances

1.4 Quality Systems

Non-mandatory requirements relating to the product manufacturer’s Quality System Program are described in Annex A.

2 PRESSURE-TEMPERATURE RATINGS

The pressure-temperature ratings, including all use recommendations and limitations, and the method of rating given in ASME B16.5 apply to these flanges.

3 MATERIAL

3.1 General

Flange materials shall meet all requirements of ASME B16.5.

3.2 Bolting

Material shall be in accordance with ASME B16.5.

3.3 Plugs

Pressure retaining plugs shall conform to ASME B 16.1 1, unless otherwise agreed between purchaser and manufacturer. Plug material shall be at least as corrosion resistant as the corresponding flange material.

4 SIZE

Orifice flange sizes are indicated by the nominal pipe size to which they are attached. Only those listed in Tables 1 through 6 are considered standard.

5 MARKING

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

1


ASME 616.36-1996

6 FLANGE FACING FINISH

The finish of contact faces shall conform to the requirements of ASME B16.5.

7 GASKETS FOR RAISED FACE FLANGES

7.1 Gasket Thickness

thick gaskets.' Flange dimensions are based on the use of 0.06 in.

7.2 Gasket Thickness

If gaskets of differing hardness and compressibility are used, the rules of Annex E of ASME B16.5 shall govern.

8 PRESSURE TAPS

8.1 General

Each orifice flange is provided with two pressure tap holes extending radially from the outside diameter of the flange to the inside diameter of the flange. Comer taps may be used on NPS 1p2 and smaller if space permits. See Fig. 1. For ring joint flanges listed in Tables 2 through 6, where radial taps will interfere with the ring groove, angular meter taps, as illustrated in Fig. 3, will be required. Each pressure tap hole shall be equipped with a pipe plug.

8.2 Location

The 0.94 in. locating dimension for raised face and 0.75 in. for ring joint' shall be measured at the bore.

8.3 Pipe Connection

Unless otherwise specified, pressure tap holes may be either tapped v2 NPT or v2 N P S socket connection in accordance with AME B16.11.

When the location of the pressure tap with respect to the orifice plate is critical for the service and metering conditions, its location may be altered to accomodate other than 0.06 in. thick gaskets or ring type joint gaskets whose thickness may vary from that listed in Tables 2, 3, 4, 5, and 6.

The alteration of location may also be accomplished by the removal of 0.06 in. from the raised face of the flange. If an original 0.06 in. high raised face is removed, the user is cautioned to limit the outside. diameter of the gasket or orifice plate to the tabulated R dimension.

ORIFICE FLANGES

9 JACK SCREW PROVISION

9.1 Location

Each flange shail have a machine bolt mounted in a hole drilled on the flange center line at 90 deg. from the pressure taps, for use as a jack screw. Machine bolt shall be regular with one heavy hex nut. See Fig. 2.

9.2 Slot for Nut

A slot shall be provided in the flange 0.06 in. wider than the width across flats of the nut. The depth of the slot shall admit the nut so that there is no interference with the joining of the flanges when bolted together without orifice plate.

9.3 Tapped Hole

As an alternative to para. 9.2., a tapped hole may be provided and the hex nut omitted when agreed on between the purchaser and the manufacturer.

10 DIMENSIONS

10.1 Flange Dimensions

Dimensions are listed in Tables 1, 2, 3, 4, 5, and 6.

10.2 Gasket Dimensions

Gasket dimensions shall be in accordance with Ap- pendix E of ASME B16.5.

11 FLANGE THREADS

Threaded flanges shall have an American National Standard taper pipe thread conforming to ASME B1.20.1.

(a) The thread shall be concentric with the axis of the flange. Variations in alignment shall not exceed 0.06 in./ft. (0.5%).

(b) The flanges are made with counterbores at the back of the flange and the threads shall be chamfered to the diameter of the counterbore at an angle of approximately 45 deg. with the axis of the thread to afford easy entrance in making a joint. The counterbore and chamfer shall be concentric with the thread.

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

2


ORIFICE FLANGES

(d) The gaging notch of the working gage shall come flush with the bottom of the chamfer in all threaded flanges and shall be considered as being the intersection of the chamfer cone and the pitch cone of the thread. This depth of chamfer is approximately equal to one-half ('I2) the pitch of the thread.

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

12 TOLERANCES

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

ASME 816.36-1996

12.1 Pressure Tap Location

from flange face shall be: Tolerance on location of center of pressure tap hole'

(a) flanges smaller than NPS 4, 20.02 in. (b) flanges NPS 4 and larger, 20.03 in.

12.2 Bore Diameter

Bore diameter tolerance (welding neck flanges only) is + O S % of nominal value.

* See para. 8.2.

3


ASME 816.36-1996 ORIFICE FLANGES

FIG. 1 CORNER TAPS

FIG. 2 JACK BOLTS

4


STD-ASME BLb.3b-ENGL L99b 0757b70 0577302 b5T

ASME 816.36-1996 ORIFICE FLANGES

FIG. 3 ANGULAR METER TAP FOR RTJ FLANGES

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0.03

20

23.0

0 30

.50

2.75

6.62

R73

23.0

00

0.37

5 0.

531

0.06

24

27.2

5 36

.00

3.00

6.88

R77

27.2

50

0.93

8 0.

656

0.06

1.06

5.75

4.50

1.06

8.12

6.63

1.06

10.2

5 8.6

3 1.0

6 12

.62

10.7

5 1.0

6 14

.75

12.7

5

1.06

16.7

5 14

.00

1.19

19.0

0 16

.00

1.19

21.0

0 18

.00

1.25

23.1

2 20

.00

1.44

27.6

2 24

.00

s 0 5 z 8 v) - 1

7.88

10.6

2 13

.00

15.2

5 17

.75

20.2

5 22

.50

24.7

5 27

.00

32.0

0

8 12

12

16

16

20

20

24

24

24

1.00

1.00

1.12

1.25

1.38

1.38

1.50

1.50

1.62

1.88

5.50

6.00

6.25

6.50

6.75

7.25

7.50

8.00

8.00

8.50

8.25

8.75

9.25

9.75

11.0

0

9.00

9.25

9.50

10.2

5 g

11.5

0 5 R g E


GE

NE

RA

L N

OTE

: Dim

ensi

ons

are

in in

ches

.

NO

TES

: (1

) O

ther

NP

T si

zes

may

be

furn

ishe

d if

requ

ired.

(2

) A

ll ot

her

dim

ensi

ons

are

in a

ccor

danc

e w

ith A

SM

E B

16.5

. (3

) In

con

form

ance

with

AS

ME

B16

.5, s

tud

bolt

leng

ths

do n

ot in

clud

e po

int h

eigh

ts.

(4)

Bol

t len

gths

for

rais

ed fa

ce fl

ange

s in

clud

e al

low

ance

for

orifi

ce a

nd g

aske

t thi

ckne

ss o

f 0.2

5 in

. for

NP

S 4

-12

and

0.38

in. f

or

NP

S 1

4-24

. B

olt l

engt

hs fo

r rin

g ty

pe jo

int f

lang

es in

clud

e al

low

ance

of

0.62

in. f

or N

PS

4-1

0,

0.75

in. f

or N

PS

12-

18, a

nd 0

.88

in. f

or N

PS

20.

(5

) B

ore

is to

be

spec

ified

by

the

purc

hase

r.

(6)

Rin

g jo

int

flang

e in

NP

S 2

4 w

ill r

equi

re a

n an

gula

r met

er ta

p as

sho

wn

in F

ig. 3

.

W

0-

I m

GI

=I

0

0

Ln

4

d

W 0

0-

m

-I

u-

1

D

Ln m


l-----

----4

0.

;5

8p&

l on

e or

Tw

o G

-

RaM

Fw

r Ri

ng T

YPO

Join

t

Piiw

R

ing

and

orifk

a Pl

ate

Asse

mbl

y

TABL

E 3

CLA

SS

600

OR

IFIC

E FL

ANG

ES,

WEL

DIN

G

NEC

K2r3

- Bo

re

I3 g E e t VI

-

T T

T T

Leng

th

of

Stud

Bo

lts

[(4)(5

11

liam

e :e

r of

Nom

- in

al

E,

Pipe

Si

ze

OUt-

side

Diam

- et

er

of

Zaise

d Fa

ce

R

Duts

ide

Diam

- et

er

of

Flan

ge

0

rhick

- les

s of

Ia

nge,

M

in.

c

1 Leng

th

rhro

ugh

Hub Y

of

Raise

d Fa

ce

H

iroov

e

ber

1 2.0

0 4.8

8 1.

44

3.19

0.0

6 R1

6 1 '

/2 2.8

8 6.1

2 1.4

4 3.3

2 0.0

6 R2

0 2

3.82

6.50

1.44

3.32

0.06

R23

2'/*

4.12

7.50

1.44

3.44

0.06

R26

3 5.0

0 8.2

5 1.4

4 3.4

4 0.0

6 R3

1

4 6.1

9 10

.75

1.50

4.00

0.25

R37

6 8.5

0 14

.00

1.88

4.62

0.25

R45

8 10

.62

16.5

0 2.1

9 5.2

5 0.2

5 R4

9 10

12

.75

20.0

0 2.5

0 6.0

0 0.2

5 R5

3 12

15

.00

22.0

0 2.6

2 6.1

2 0.2

5 R5

7

14

16.2

5 23

.75

2.75

6.50

0.25

R61

16

18.5

0 27

.00

3.00

7.00

0.25

R65

18

21.0

0 29

.25

3.25

7.25

0.25

R69

20

23.0

0 32

.00

3.50

7.50

0.25

R73

24

27.2

5 37

.00

4.00

8.00

0.25

R77

Ring

Ty

l

Pitc

h Di

am-

Groo

ve

eter

De

pth

P E

2.00

0 0.

250

2.68

8 0.

250

3.25

0 0.

312

4.00

0 0.

312

4.87

5 0.

312

sroov

e W

idth

F

Ra-

dius

at

Bo

tt-

om

rtttu

cial

Oval

Ring

ie

ight

W

t

eter

of

Hu

b X

Hub

Xam

e-

ter

Begi

n-

ling

of

Cham

- fe

r A

0.34

4 0.0

3 1.0

0 2.1

2 1.3

2 0.

344

0.03

1.00

2.75

1.90

0.

469

0.03

1.06

3.31

2.38

0.46

9 0.0

3 1.0

6 3.9

4 2.8

8 0.

469

0.03

1.06

4.62

3.50

6.87

5 0.

312

0.46

9 0.0

3 1.0

6 6.0

0 4.5

0 8.

312

0.31

2 0.

469

0.03

1.06

8.75

6.63

10.6

25

0.31

2 0.

469

0.03

1.06

10.7

5 8.6

3 12

.750

0.

312

0.46

9 0.0

3 1.0

6 13

.50

10.7

5 15

.000

0.

312

0.46

9 0.0

3 1.0

6 15

.75

12.7

5

16.5

00

0.31

2 0.

469

0.03

1.06

17.0

0 14

.00

18.5

00

0.31

2 0.

469

0.03

1.19

19.5

0 16

.00

!l.OOO

0.

312

0.46

9 0.0

3 1.1

9 21

.50

18.0

0 !3.

000

0.37

5 0.

531

0.06

1.25

24.0

0 20

.00

!7.25

0 0.

438

0.65

6 0.0

6 1.4

4 28

.25

24.0

0

Drilli

ng

Tem

plat

e

Diam

eter

of

Ho

les

Bolt

Circ

le

Iurn

, be

r of

lole

z

-T 4 8 8 8

I Pai

sed

Ring

Fa

ce

Join

1

3.50

4.50

5.00

5.88

6.62

0.69

0.75

0.81

0.88

0.69

0.75

0.81

0.88

0.81

0.88

8.50

8 1.0

0 1.0

0 11

.50

12

1.12

1.12

13.7

5 12

1.2

5 1.2

5 17

.00

16

1.38

1.38

19.2

5 20

1.3

8 1.3

8

20.7

5 23

.75

25.7

5 28

.50

33.0

0

20

20

20

24

24

-

1.50

1.50

1.62

1.62

1.75

1.75

1.75

1.75

2.00

2.00

sure

Co

n-

eter

of

I

tion TT

la

isec

Ring

Jo

int

I

5.00

5.25

5.00

5.25

5.25

6.00

7.00

7.75

8.75

9.00

9.50

10.2

5 Il.0

0 11

.75

13.2

5

6.50

7.50

8.25

9.25

9.50

10.0

0 10

.75

11.5

0 12

.50

g 13

.75

3 8 c x El


GE

NE

RA

L N

OTE

: D

imen

sion

s ar

e in

inch

es.

NO

TES

: (1

) O

ther

NP

T si

zes

may

be

furn

ishe

d if

requ

ired.

(2) W

eldn

eck

flang

es N

PS

3 a

nd s

mal

ler

are

iden

tical

to C

lass

300

flan

ges

exce

pt fo

r bo

lting

and

may

be

use

d fo

r su

ch s

ervi

ce.

(3)

All

othe

r di

men

sion

s ar

e in

acc

orda

nce

with

AS

ME

816

.5.

(4)

Bol

t len

gths

for

rais

ed fa

ce fl

ange

s in

clud

e al

low

ance

for

orifi

ce a

nd g

aske

t thi

ckne

ss o

f 0.2

5 in

. for

NP

S 1

-12

and

0.38

in.

for

NP

S 1

4-24

. B

olt l

engt

hs fo

r rin

g ty

pe jo

int f

lang

es in

clud

e al

low

ance

of 0

.62

in. f

or N

PS

1-1

0, 0

.75

in. f

or N

PS

12-

18,

and

0.88

in

. for

NP

S 2

0.

(5)

In c

onfo

rman

ce w

ith A

SM

E B

16.5

, st

ud b

olt

leng

ths

do

not

incl

ude

poin

t he

ight

s.

(6)

Bor

e is

to b

e s

peci

fied

by

the

purc

hase

r.

(7)

Rin

g jo

int f

lang

e in

NP

S 2

4 w

ill r

equi

re a

n an

gula

r m

eter

tap

as s

how

n in

Fig

. 3.

v)

-I

W

W

U- I I


D cn m

Bor

e

Dia

m-

eter

of

P

ress

ure

Con

nec-

ti

on

B

TT

iid

riil

mus

t be

free

from

bu

rs

Y

TAB

LE 4

C

LAS

S 9

00 O

RIF

ICE

FLA

NG

ES, W

ELD

ING

NEC

K'

-

Dia

m-

eter

of

Hub

X

I

OU

t- si

de

Dia

m-

eter

of

R

aise

d Fa

ce

R -

-

5.00

6.19

8.50

10.62

12.75

15.00

16.25

18.50

21 .o

o 23.00

27.25 -

Len

gth

of

Stu

d B

ob

I(

3. (4

)l

Rai

sed

Rin

g I

Face

Jo

int

I R

ing

Typ

e Jo

int (

6)

Dri

llin

g T

emp

late

Dia

met

er

Hu

b

Dia

met

er

Beg

inni

ng

of

Cha

mfe

r A

I+ n

r

n

Len

gth

R

adiu

s Th

roug

h H;b

1 Gr oov] F- 1 1

IB;;; N

um

ber

Spe

cial

O

val

Rin

g H

eig

ht

W

No

mi-

na

l P

ipe

e

Siz

e

1 2

N -

1 Y2

2Y2 -

3 4 6 8 10

12

14

16

18

20

24 -

Flan

ge

For

NPS

2v2 an

d sm

alle

r, use

Cla

ss 1500.

~

6.50

7.50

8.25

9.50

10.00

10.75

I 1.50

12.00

13.75

14.75

Eg

5 2 fi m z v

)

-

8 8 12

12

16

20

20

20

20

20

20 -

-

6.00

7.00

7.75

9.00

9.50

10.25

11.00

11.50

13.00

14.00

17.50 -

0.469

0.469

0.469

0.469

0.469

0.469

0.656

0.656

0.781

0.781

1.062

0.03

0.03

0.03

0.03

0.03

0.03

0.06

0.06

0.06

0.06

0.09

1.06

1.06

1.06

1.06

1.06

1.06

1.31

1.44

1.56

1.56

1.88

5.00

6.25

9.25

11.75

14.50

16.50

17.75

20.00

22.25

24.50

29.50

3.50

4.50

6.63

8.63

10.75

12.75

14.00

16.00

18.00

20.00

24.00

7.50

9.25

12.50

15.50

18.50

21.00

22.00

24.25

27.00

29.50

35.50

1 .oo

1.25

1.25

1.50

1.50

1.50

1.62

1.75

2.00

2.12

2.62

I


GEN

ERA

L N

OTE

: D

imen

sion

s ar

e in

inch

es.

NO

TES:

(1

) O

ther

NPT

siz

es m

ay b

e fu

rnis

hed

if re

quire

d.

(2)

All

othe

r di

men

sion

s ar

e in

acc

orda

nce

with

AS

ME

B16

.5.

(3)

In c

onfo

rman

ce w

ith A

SM

E B

16.5

, st

ud b

olt

leng

ths

do n

ot in

clud

e po

int

heig

hts.

(4

) B

olt l

engt

hs fo

r ra

ised

face

flan

ges

incl

ude

allo

wan

ce fo

r or

ifice

and

gas

ket t

hick

ness

of

0.25

in.

for

NPS

3-1

2 an

d 0.

38 i

n. fo

r

(5)

Bor

e is

to b

e sp

ecifi

ed b

y th

e pu

rcha

ser.

(6

) R

ing

join

t fla

nges

larg

er th

an N

PS 1

2 w

ill r

equi

re a

ngul

ar m

eter

taps

as

show

n in

Fig

. 3.

NPS

14-

24.

Bol

t len

gths

for

ring

type

join

t fla

nges

incl

ude

allo

wan

ce o

f 0.6

2 in

. for

NP

S 3

-10

and

0.75

in. f

or N

PS 1

2.

VI x

m

m

t-'

0-

W

0-

I m z

E; m


No

mi-

n

al

Pip

e S

ize

1 11/2

2 2'12

3 4 6 8 10

12

14

16

18

20

24

+

P

r

Tid

rill

mus

l be

free

from

bur

rs

Ou

tsid

e D

iam

- et

er

of

Rai

sed

Face

R

2.00

2.

88

3.62

5.00

6.19

8.

50

10.6

2 12

.75

15.0

0

16.2

5 18

.50

21.0

0 23

.00

27.2

5

4.12

Juts

ide

Dia

m-

eter

of

Fl

ange

0

5.88

7.

00

8.50

9.

62

10.5

0

12.2

5 15

.50

19.0

0 23

.00

26.5

0

29.5

0 32

.50

36.0

0 38

.75

46.0

0

Pw

Rin

g an

d O

iifim

Pla

ts

Thic

k-

ness

of

Fl

ange

, M

in.

C

1.50

1.

50

1.50

1.

62

1.88

2.12

3.

25

3.62

4.

25

4.88

5.25

5.

75

6.38

7.

00

8.00

Rai

md Fr

r R

ing

Ty

p J

oh

l A

ssem

bly

TAB

LE 5

C

LASS

150

0 O

RIF

ICE

FLA

NG

ES, W

ELD

ING

NE

CK

2

Sro

ove

Dep

th

E

0.25

0 0.

250

0.31

2 0.

312

0.31

2

0.31

2 0.

375

0.43

8 0.

438

0.56

2

0.62

5 0.

688

0.68

8 0.

688

0.81

2

Rin

g Ty

pe J

oin

t (6)

Gro

ove

Wid

th

F

0.34

4 0.

344

0.46

9 0.

469

0.46

9

0.46

9 0.

531

0.65

6 0.

656

0.80

6

1.06

2 1.

188

1.18

8 1.

312

1.43

8

3adi

us

at

lott

om

rm

a.

0.03

0.

03

0.03

0.

03

0.03

0.03

0.

06

0.06

0.

06

0.06

0.09

0.

09

0.09

0.

09

0.09

Pitc

h D

iam

- et

er

P

Spe

cia

Ova

l R

ing

Hei

gh

i W

1.00

1.

00

1.06

1.

06

1.06

1.06

1.

12

1.31

1.

31

1.56

1.75

2.

00

2.00

2.

12

2.31

2.00

0 2.

688

3.75

0 4.

250

5.37

5

6.37

5 8.

312

10.6

25

12.7

50

15.0

00

16.5

00

18.5

00

21.0

00

23.0

00

27.2

50

Nu

m-

ber

of

Hol

es

4 4 8 8 8 8 12

12

12

16

16

16

16

16

16

Dia

m-

eter

of

H

oles

1.00

1.

12

1.00

1.

12

1.25

1.38

1.

50

1.75

2.

00

2.12

2.38

2.

62

2.88

3.

12

3.62

Leng

th

ihro

ug

h

Hub

Y 3.25

3.

50

4.00

4.

12

4.62

4.88

6.

75

8.38

10

.00

11.1

2

11.7

5 12

.25

12.8

8 14

.00

16.0

0

I Hub

I G

roov

e N

um

- be

r

R16

R

20

R24

R

27

R35

R39

R

46

R50

R

54

R58

R63

R

67

R71

R

75

R79

Dia

met

er

4.12

Dia

m-

eter

of

B

olts

78

1 1 ?$

1'/8

lk4

13/8

178

178

2 2'14

23/4

2'1'

3 3'/2

Rai

sed

Rin

g Fa

ce

Join

t

6.00

6.

25

6.25

6.

50

6.50

7.

00

6.00

6.

50

7.25

7.

25

8.00

8.

50

10.5

0 11

.00

11.7

5 12

.25

13.5

0 14

.00

15.0

0 15

.75

16.2

5 17

.52

17.7

5 19

.00

21.5

0 22

.50

24.5

0 26

.00

19.7

5 21

.00

Ti

6.38

9.

00

14.5

0 11

.50

-

Dia

me-

te

r of

're

ssun

:o

nnec

. tio

n 7i -

1 14

Y4 '/4 '14 /a 92 '4

5;

12

'12 12

72 72 4 5;

3 1 1 1

rn -

4.50

E

6.63

8.

63

p>

10.7

5 2

Dia

m-

eter

of

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if re

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4-24

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er

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R23

R26

R28

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o 13.500

16.000

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0.500

0.562

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0.531

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0.781

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1.312

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2.38

3.50

4.50

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12.75

2.88

GEN

ERA

L N

OTE

: D

imen

sion

s ar

e in

inch

es.

NO

TES

: (1

) O

ther

NPT

siz

es m

ay b

e fu

rnis

hed

if re

quire

d.

(2) A

ll ot

her

dim

ensi

ons

are

in a

ccor

danc

e w

ith A

SM

E 816.5.

(3) I

n co

nfor

man

ce w

ith A

SM

E B16.5,

stud

bol

t len

gths

do

not i

nclu

de p

oint

hei

ghts

. (4) B

olt l

engt

hs fo

r ra

ised

face

flan

ges

incl

ude

allo

wan

ce fo

r or

ifice

and

gas

ket t

hick

ness

of 0.25 i

n. fo

r N

PS 1-12. B

olt l

engt

hs fo

r

(5) B

ore

is to b

e sp

ecifi

ed by

the

purc

hase

r. (6) R

ing

join

t fla

nges

larg

er th

an N

PS 3 w

ill r

equi

re a

ngul

ar m

eter

taps

as

show

n in

Fig

. 3.

ring

type

join

t fla

nges

incl

ude

allo

wan

ce o

f 0.62 in

. for

NPS

13.

J=

W

z A Ln

n 6" z

I

c4Y


AS ME B 16.36- 1 996

ANNEX A QUALITY SYSTEM PROGRAM

(This Annex is not part of ASME 616.36-1996 and is included for information only.)

The products manufactured in accordance with this Standard shall be produced under a quality system program following the principles of an appropriate standard from the IS0 9000 series.’ A determination of the need for registration andor certification of the

’ The series is also available from the American National Standards Institute (ANSI) and the American Society for Quality Control (ASQC) as American National Standards that are identified by a prefix “ Q replacing the prefix “ISO. Each standard of the series is listed under Annex B.

product manufacturer’s quality system program by an independent organization shall be the responsibility of the manufacturer. The detailed documentation demon- strating program compliance shall be available to the puchaser at the manufacturer’s facility. A written sum- mary description of the program utilized by the product manufacturer shall be available to the purchaser upon request. The product manufacturer is defined as the entity whose name or trademark appears on the product in accordance with the marking or identification requirements of this Standard.

17


~

STD-ASME BLb.3b-ENGL 377b m 0757b70 0577335 208 m

ORIFICE FLANGES ASME 816.36-1996

ANNEX B

REFERENCES

(This Annex is an integral part of ASME 816.36-1996 and is placed after the main text for convenience.)

The following is a list of standards and specifications referenced in this Standard showing the year of approval.

ASME Publications (Approved as American National Standards)

ASME B1.20.1-1983 (R1992) ASME B16.5-1996 ASME B16.11-1991

Pipe Threads, General Purpose (Inch) Pipe Flanges and Flanged Fittings Forged Fittings, Socket-Welding and Threaded

ASME Boiler and Pressure Vessel Code, 1995 Edition (Including Addenda through 1995)

Section 1 Power Boilers Section I1 Materials Section I11 Section VIII, Division 1 & 2

Nuclear Power Plant Components Pressure Vessels

International Standards Organization (ISO)

IS0 9000-1: 1994

IS0 9000-2: 1993

Quality management and quality assurance standards - Part 1: Guidelines for selection and use Quality management and quality assurance standard - Part 2: Generic guidelines for the application of IS0 9001, IS0 9002, and IS0 9003 Quality management and quality assurance standards - Part 3: Guidelines for the application of IS0 9001 to the development, supply and maintenance of software Quality systems - Model for quality assurance in design, development, production, istallation, and servicing Quality systems - Model for quality assurance in production and servicing Quality systems - Model for quality assurance in final in- spection and test

IS0 9000-3: 1991

IS0 9001: 1994

IS0 9002: 1994

IS0 9003: 1994


~~ ~

STD-ASME B L b - 3 b - E N G L L99b 0759b70 05793Lb 144

ASME B16.36- 1996 ORIFICE FLANGES

ASQC

IS0

Publications of the following organizations appear in the above list:

ASME The American Society of Mechanical Engineers 345 East 47th Street, New York, NY 10017-2392

ASME Order Department 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300

American Society for Quality Control P.O. Box 3005, Milwaukee, WI 53201-3005

International Organization for Standardization 1, rue de Varembe, Case postale 56, CH - 1121 Genthe 20, SwitzerlandSuisse

IS0 documents are also available from ANSI. Publications appearing above which have been approved as American National Standards may also be obtained from ANSI.

ANSI American National Standards Institute, Inc. 11 West 42nd St., New York, NY 10036

20


asme b16.36 - 1996 - orifice flanges

Documents