ASME B16.48-2005
(Revision of ASME B16.48-1997)
A N A M E R I C A N N AT I O N A L STA N DA R D
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Line Blanks
ASME B16.48-2005
(Revision of ASME B16.48-1997)
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Line Blanks
A N A M E R I C A N N AT I O N A L S TA N D A R D
Three Park Avenue • New York, NY 10016
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Date of Issuance: January 16, 2006
The next edition of this Standard is scheduled for publication in 2010. There will be no addenda or
written interpretations of the requirements of this Standard issued to this edition.
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Copyright © 2006 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved
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CONTENTS
iv
v
1
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
Pressure-Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
3
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
5
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
6
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
7
Paddle Blank and Spacer Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
8
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Figure
1 Line Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Tables
1
Dimensions
2
Dimensions
3
Dimensions
4
Dimensions
5
Dimensions
6
Dimensions
7
Dimensions
8
Dimensions
9
Dimensions
10 Dimensions
11 Dimensions
12 Dimensions
13 Dimensions
14 Dimensions
15 Dimensions
16 Dimensions
17 Dimensions
18 Dimensions
of
of
of
of
of
of
of
of
of
of
of
of
of
of
of
of
of
of
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
Class
150 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
600 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
900 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1500 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2500 Raised Face Figure-8 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
150 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . . .
300 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . . .
600 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . . .
900 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . . .
1500 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . .
2500 Female Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . . . .
150 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . .
300 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . .
600 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . .
900 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . . .
1500 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . .
2500 Male Oval Ring-Joint Facing Figure-8 Blanks . . . . . . . . . . . . .
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Nonmandatory Appendices
A
Dimensional Data for Line Blanks in U.S. Customary Units . . . . . . . . . . . . . . . . . . . . . . . .
B
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C
Quality System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
41
42
iii
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Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FOREWORD
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In July 1993, the ASME B16 Committee gave to its Subcommittee C the assignment to convert
the API 590 Steel Line Blanks Standard into an ASME standard. The American Petroleum Institute
no longer publishes the API 590 Standard.
These line blanks were designed in accordance with the rules of the ASME B31.3-2002 edition.
Materials and relevant footnotes have been added following the ASME format.
Significant additions made to this 2005 edition include reference to the use of all materials
listed in B16.5 Table 1-A plus Metric units. The added materials of construction include additions
to classes of alloy steels, stainless steels, and nickel alloys. This edition has also been metricated
over previous editions to include both U.S. Customary units (in parenthesis) and Metric units in
the text, Metric units in dimensional tables in the body, and U.S. Customary units in dimensional
tables in Nonmandatory Annex A.
All requests for interpretations or suggestions for revisions should be sent to the Secretary,
B16 Committee, The American Society of Mechanical Engineers, Three Park Avenue, New York,
NY 10016-5990.
The B16 Committee operates under procedures accredited by the American National Standards
Institute (ANSI). Following approval by the Standards Committee and ASME, this revision to
the 1997 edition was approved as an American National Standard by ANSI on September 19,
2005 with the designation ASME B16.48-2005.
iv
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ASME B16 COMMITTEE
Standardization of Valves,
Flanges, Fittings, and Gaskets
(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
C. Artibee, Secretary
COMMITTEE PERSONNEL
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R. W. Barnes, Anric Enterprises, Inc.
W. B. Bedesem, ExxonMobil Research and Engineering Co.
M. A. Clark, Nibco, Inc.
C. E. Floren, Mueller Co.
D. R. Frikken, Becht Engineering Co.
G. G. Grills, U.S. Coast Guard
A. Hamilton, ABS Americas
M. L. Henderson, Forgital USA
G. A. Jolly, Vogt Valves/Flowserve
M. Katcher, Haynes International
R. Koester, Honorary Member
W. N. McLean, Newco Valves
T. A. McMahon, Fisher Controls International, Inc.
M. L. Nayyar, Bechtel Power Corp.
J. D. Page, U.S. Regulatory Commission
P. A. Reddington, The American Society of Mechanical Engineers
R. A. Schmidt, Trinity-ladish
H. R. Sonderegger, Anvil International, Inc.
W. M. Stephan, Flexitallic LP
T. F. Stroud, Ductile Iron Pipe Research Association
R. E. White, Richard E. White & Associates PC
D. A. Williams, Southern Company Services
SUBCOMMITTEE C
D. R. Frikken, Chair, Becht Engineering Co.
C. Artibee, Secretary, The American Society of Mechanical
Engineers
V. C. Bhasin, Sigmatech
G. D. Conlee, Consultant
W. C. Farrell, Jr., Consultant
M. L. Henderson, Coffer Corp.
R. E. Johnson, Flowline Division
R. Koester, Honorary Member
W. N. McLean, Newco Valves
M. L. Nayyar, Bechtel Power Corp.
R. A. Schmidt, Trinity-ladish
D. L. Shira, Taylor Forge
J. C. Thompson, Milwaukee Valve
L. A. Willis, Dow Chemical Co.
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ASME B16.48-2005
LINE BLANKS
1
SCOPE
where limits and maximum and minimum values are
specified, shall be rounded as defined in ASTM
Practice E 29. This requires that an observed or calculated value shall be rounded off to the nearest unit in
the last right-hand digit used for expressing the limit.
Decimal values and tolerances do not imply a particular
method of measurement.
1.1 General
This Standard covers pressure-temperature ratings,
materials, dimensions, tolerances, marking, and testing
for operating line blanks in sizes NPS 1⁄2 through NPS 24
for installation between ASME B16.5 flanges in the 150,
300, 600, 900, 1500, and 2500 pressure classes.
1.7 Size
1.2 Definitions
NPS, followed by a dimensionless number, is the designation for nominal blank size. NPS is related to the
reference nominal diameter, DN, as defined in ISO 6708.
The relationship is typically as follows:
1.2.1 Figure-8 Blank. A figure-8 blank (also called a
spectacle blank) is a pressure-retaining plate with one
solid end and one open end connected with a web or
tie bar (see Fig. 1).
NPS
1.2.2 Paddle Blank. A paddle blank is similar to the
solid end of a figure-8 blank. It has a plain radial handle.
It is generally used in conjunction with a paddle spacer
in large sizes.
1
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
3
1.2.3 Paddle Spacer. A paddle spacer is similar to
the open end of a figure-8 blank. It has a plain radial
handle. It is generally used in conjunction with a paddle
blank.
1.3 References
Codes, standards, and specifications, containing provisions to the extent referenced herein, constitute
requirements of this Standard. These reference documents are listed in Nonmandatory Appendix B.
15
20
25
32
40
50
65
80
100
NOTE: For NPS ≥ 4, the related DN is DN p 25 (NPS).
1.8 Service Conditions
Criteria for selection of materials suitable for particular fluid service are not wihtin the scope of this Standard.
1.4 Quality Systems
Nonmandatory requirements relating to the product
manufacturer’s Quality System Program are described
in Nonmandatory Appendix C.
2
PRESSURE-TEMPERATURE RATINGS
2.1 Pressure Classes
Line blanks covered by this Standard are for the following pressure classes: 150, 300, 600, 900, 1500, and
2500 as listed in ASME B16.5.
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1.5 Relevant Units
This Standard states values in both Metric and
U.S. Customary units. These systems of units are to be
regarded separately as standard. Within the text, the
U.S. Customary units are shown in parenthesis or separate tables. Refer to Nonmandatory Appendix A. The
values stated in each system are not exact equivalents;
therefore, it is required that each system of units be used
independently of the other. Combining values from the
two systems constitutes nonconformance with the Standard. Nonmandatory Appendix A provides dimensions
in U.S. Customary units.
2.2 Pressure-Temperature Ratings
2.2.1 Ratings. Ratings are the maximum allowable
working gage pressure at the temperature shown in
Tables 2 and F-2 of ASME B16.5 for the appropriate
material and pressure class. For intermediate temperatures, linear interpolation between temperatures within
a pressure class is permitted by ASME B16.5.
2.2.2 System Pressure Testing. Line blanks may be
subjected to system tests at a pressure not to exceed
1.5 times the 38°C (100°F) rating rounded off to the next
higher 1 bar (25 psi) increment. Testing at any higher
pressure is the responsibility of the user, taking into
1.6 Convention
For the purpose of determining conformance with
this Standard, the convention for fixing significant digits
1
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ASME B16.48-2005
LINE BLANKS
thicknesses, t, listed in Tables 1 through 6 (Tables A-1
through A-6 in Nonmandatory Appendix A).
3.3.2 Female Ring-Joint Blanks. Female ring-joint
grooves shall be shaped with the groove side wall surface finish not exceeding 1.6 m (63 in.) Ra roughness.
The finish of the gasket contact faces shall be judged by
visual comparison with Ra standards (see ASME B46.1)
and not by instruments having stylus tracers and electronic amplification.
Figure-8 Blank
3.3.3 Male Ring-Joint Blanks. The gasket shape (ring)
for male ring-joint blanks shall not exceed 1.6 m
(63 in.) Ra roughness. The finish of the gasket contact
faces shall be judged by visual comparison with Ra standards (see ASME B46.1) and not by instruments having
stylus tracers and electronic amplification.
Paddle Blank
4
DIMENSIONS
4.1 General
Paddle Spacer
Dimensions shall be in accordance with Tables 1
through 18 (Tables A-1 through A-18 of Nonmandatory
Appendix A).
Fig. 1 Line Blanks
4.2 Tolerances
account the requirements of the applicable code or
regulation.
4.2.1 Facing Tolerances. Tolerances for facings shall
be in accordance with ASME B16.5.
2.2.3 Mixed Material Joints. Should either the two
flanges or the line blank in a flanged line blank assembly
not have the same pressure-temperature rating, the rating of the assembled joint at any temperature shall be
the lower of the flange or line blank rating at that temperature.
4.2.2 Thickness Tolerances. Thickness tolerances are
NPS 18 and smaller −zero + 3.0 mm (0.12 in.)
NPS 20 and larger −zero + 4.8 mm (0.19 in.)
(a) For NPS 1⁄2, NPS 3⁄4, and NPS 1 blanks in all raised
face classes, the inside diameter is equal to standard
weight welding neck flange bore.
(b) For NPS 11⁄4 and larger blanks in Classes 150 and
300 raised face, the inside diameter is equal to the pipe
outside diameter.
(c) For NPS 11⁄4 and larger blanks in Classes 600 and
900 raised face, the inside diameter is equal to
Schedule 10S welding neck flange bore.
(d) For Class 1500 raised face blanks, the inside diameter is equal to Schedule 40 welding neck flange bore.
(e) For Class 2500 raised face blanks, the inside diameter is equal to Schedule 40 through NPS 6, Schedule 60
for NPS 8 and NPS 10, and Schedule 80 for NPS 12.
(f) For all ring-joint blanks, the inside diameter is
equal to the pipe outside diameter.
(g) Dimensions are based upon concentric installation
of spiral wound gaskets with inner rings as required by
ASME B16.20 and conform to the maximum permitted
bore of ASME B16.5 welding neck flanges described in
Table 16 of ASME B16.20.
DESIGN
3.1 Handle
The handle or web (tie bar) may be integral or attached
to the line blank or spacer. The web and its attachment
shall be capable of supporting the weight of the blank
or spacer in all orientations without permanent deformation to the web.
3.2 Edge Preparation
Finished surfaces shall be free of projections that
would interfere with gasket seating.
3.3 Facing
3.3.1 Raised Face Joint Blanks. The gasket seating
surface finish and dimensions for raised face line blanks
shall be in accordance with ASME B16.5. A raised face
may be specified at the option of the purchaser. The
height of the raised faces shall be in addition to the
2
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3
4.3 Openings
LINE BLANKS
ASME B16.48-2005
4.4 Facing Finish
(c) The B16 designation may be applied only when
the line blank has been manufactured in full conformance with this Standard.
Facing finish shall be in accordance with ASME B16.5,
para. 6.4.5.
6.2 Marking Method
5
The marking shall be applied by steel stamping on
the web (tie bar) or handle. Where space is limited,
marking may be stamped on the outside edge of the
blind portion of blanks.
MATERIALS
Materials for line blanks shall be in accordance with
ASME B16.5, Table 1-A, and shall include material
restrictions cited in notes to Tables 2 or F-2 of
ASME B16.5. Recommended bolting materials for
flange-blank assemblies are listed in ASME B16.5,
Table 1-B.
Criteria for the selection of materials are not within
the scope of this Standard.
6
7
7.1 Paddle Handles
In order to differentiate between an installed paddle
spacer and a paddle blank, it is required that there be
an externally visible distinction between the two as
required by paras. 7.2 and 7.3.
MARKING
7.2 Paddle Blank Handles
6.1 General
Handles for paddle blanks shall be solid with no
openings.
(a) Line blanks shall be marked as follows:
(1) Manufacturer’s name or trademark
(2) Material, specification, and grade or class
(3) Pressure class
(4) B16
(5) Size (NPS)
(6) Ring number (if applicable)
(b) Where space does not permit all of the above
markings, they may be omitted in the reverse order
given in 6.1(a).
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PADDLE BLANK AND SPACER IDENTIFICATION
7.3 Paddle Spacer Handles
Handles for paddle spacers shall have a single through
indicator hole located near the end of the handle. The
hole diameter shall not be less than 12 mm (1⁄2 in.).
8
TESTING
Line blanks are not required to be pressure tested.
3
Not for Resale
ASME B16.48-2005
LINE BLANKS
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
NPS
Dimensions of Class 150 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
45
54
64
73
83
102
107
133
159
172
194
219
276
337
406
448
511
546
603
714
60
70
80
90
100
120
140
150
175
190
215
240
300
360
430
475
460
580
635
750
3.0
3.0
3.0
6.4
6.4
6.4
6.4
6.4
9.7
9.7
9.7
12.7
12.7
15.7
19.1
19.1
22.4
25.4
28.4
31.8
38
38
38
38
38
51
51
64
64
64
76
76
76
102
102
108
108
114
121
140
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-1 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
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Table 1
LINE BLANKS
ASME B16.48-2005
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table 2
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 300 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
51
64
70
79
92
108
127
146
162
178
213
248
305
359
419
483
536
594
651
772
65
80
90
100
115
125
150
170
185
200
235
270
330
385
450
515
570
630
685
810
6.4
6.4
6.4
6.4
6.4
9.7
9.7
9.7
12.7
12.7
15.7
15.7
22.4
25.4
28.4
31.8
38.1
41.1
44.5
50.8
38
38
38
38
38
51
51
64
64
64
76
76
76
102
102
108
108
114
121
140
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-2 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
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ASME B16.48-2005
LINE BLANKS
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table 3
NPS
Dimensions of Class 600 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
37
43
55
67
83
96
108
135
162
212
265
315
346
397
448
497
597
51
64
70
79
92
108
127
146
159
191
238
264
318
397
454
489
562
610
679
787
65
80
90
100
115
125
150
170
185
215
265
290
350
430
490
525
605
655
725
840
6.4
6.4
6.4
9.7
9.7
9.7
12.7
12.7
15.7
15.7
19.1
22.4
28.4
35.1
41.1
44.5
50.8
53.8
63.5
73.2
38
38
57
57
67
57
67
67
76
76
86
86
95
105
105
114
124
133
133
152
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-3 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
6
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LINE BLANKS
ASME B16.48-2005
--`,,```,,,,````-`-`,,`,,`,`,,`---
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table 4
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 900 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
37
43
55
67
83
108
135
162
212
265
315
346
397
448
497
597
60
67
76
86
95
140
162
165
203
244
286
356
432
495
518
572
635
696
835
80
90
100
110
125
165
190
190
235
280
320
395
470
535
560
615
685
750
900
6.4
6.4
6.4
9.7
9.7
12.7
12.7
15.7
19.1
22.4
25.4
35.1
41.1
47.8
53.8
60.5
66.5
73.2
88.9
38
41
57
57
67
57
67
67
76
86
86
95
105
105
114
124
133
133
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-4 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
7
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ASME B16.48-2005
LINE BLANKS
[Note (1)]
W
A
O
[Note (3)]
O
B
[Note (3)]
Wt
t
--`,,```,,,,````-`-`,,`,,`,`,,`---
[Note (2)]
Table 5
NPS
Dimensions of Class 1500 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
35
41
53
63
78
102
128
154
203
255
303
333
381
429
478
575
61
67
76
86
95
140
162
172
206
251
279
349
432
518
575
638
702
752
899
80
90
100
110
125
165
190
205
240
290
320
395
480
570
635
705
775
830
990
6.4
9.7
9.7
9.7
12.7
12.7
15.7
19.1
22.4
28.4
35.1
41.1
50.8
60.5
66.5
76.2
85.9
95.3
111.3
38
41
64
64
70
70
76
76
89
89
89
102
114
114
127
133
146
152
178
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-5 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
8
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LINE BLANKS
ASME B16.48-2005
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
Dimensions of Class 2500 Raised Face Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
16
21
27
35
41
53
63
78
102
128
154
198
248
289
67
73
83
102
114
143
165
194
232
276
314
384
473
546
90
95
110
130
145
170
195
230
275
325
370
440
540
620
9.7
9.7
9.7
12.7
15.7
15.7
19.1
22.4
28.4
35.1
41.1
53.8
66.5
79.2
38
41
64
64
70
70
76
76
89
89
89
102
114
114
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-6 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
9
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Table 6
ASME B16.48-2005
LINE BLANKS
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
[Note (3)]
Dimensions of Class 1500 Female Ring-Joint Facing Figure-8 Blanks
Table 7
NPS
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
64
73
83
102
121
133
154
172
194
219
273
330
406
426
483
546
597
711
80
90
100
120
140
150
175
190
215
240
300
360
430
475
540
580
635
750
19.1
19.1
19.1
19.1
22.4
22.4
22.4
22.4
25.4
25.4
28.4
31.8
35.1
35.1
38.1
41.1
41.1
47.8
51
51
57
57
57
57
64
64
70
83
95
102
121
127
127
127
127
152
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-7 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
10
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O
LINE BLANKS
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 300 Female Ring-Joint Facing Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
51
64
70
79
90
108
127
146
159
175
210
241
302
356
413
457
508
575
635
749
65
80
90
100
115
125
150
170
185
200
235
270
330
385
450
515
570
630
685
810
15.7
19.1
19.1
22.4
22.4
25.4
28.4
28.4
28.4
31.8
35.1
35.1
41.1
44.5
50.8
53.8
57.2
60.5
69.9
79.2
38
45
51
51
57
57
57
57
64
64
70
83
95
102
121
127
127
127
127
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-8 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
11
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Table 8
ASME B16.48-2005
LINE BLANKS
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table 9
NPS
Dimensions of Class 600 Female Ring-Joint Facing Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
51
64
70
79
90
108
127
146
159
175
210
241
302
356
413
457
508
575
635
749
65
80
90
100
115
125
150
170
185
215
265
290
350
430
490
525
605
655
725
840
19.1
22.4
22.4
22.4
22.4
28.4
31.8
31.8
35.1
35.1
38.1
44.5
50.8
57.2
63.5
66.5
73.2
79.2
88.9
104.6
38
45
51
51
57
57
57
57
64
64
70
83
95
102
121
127
127
127
127
152
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-9 in
Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
12
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LINE BLANKS
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table 10
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 900 Female Ring-Joint Facing Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
356
406
457
508
610
61
67
71
81
92
124
137
155
181
216
241
308
362
419
467
524
594
648
772
80
90
100
110
125
165
190
190
235
280
315
395
470
535
560
615
685
750
900
22.4
22.4
22.4
25.4
25.4
31.8
35.1
35.1
41.1
44.5
47.8
57.2
63.5
73.2
82.6
91.9
101.6
111.3
133.4
38
45
51
51
64
51
67
67
73
73
73
80
121
121
121
127
133
127
140
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-10
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
--`,,```,,,,````-`-`,,`,,`,`,,`---
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13
Not for Resale
ASME B16.48-2005
LINE BLANKS
23 deg ⫾1/2 deg
--`,,```,,,,````-`-`,,`,,`,`,,`---
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table 11
NPS
Dimensions of Class 1500 Female Ring-Joint Facing Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
356
406
457
508
610
61
67
71
81
92
124
137
168
194
229
248
318
371
438
489
546
613
673
794
80
90
100
110
125
165
190
205
240
290
315
395
480
570
635
705
775
830
990
22.4
25.4
25.4
25.4
28.4
35.1
38.1
44.5
47.8
53.8
60.5
73.2
82.5
101.6
111.3
124.0
133.0
142.7
168.1
38
45
54
54
57
54
57
73
76
76
79
86
133
133
140
146
152
165
178
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-11
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
14
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LINE BLANKS
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table 12
--`,,```,,,,````-`-`,,`,,`,`,,`---
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
Dimensions of Class 2500 Female Ring-Joint Facing Figure-8 Blanks
Inside
Diameter, B,
mm
Outside
Diameter, O,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
65
73
83
102
114
133
149
168
203
241
279
340
425
495
90
95
110
130
145
170
195
230
270
325
370
440
540
620
25.4
28.4
28.4
35.1
38.1
41.1
47.8
50.8
63.5
73.2
82.6
98.6
117.3
133.4
38
45
54
54
61
57
61
76
83
89
95
95
91
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-12
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
15
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ASME B16.48-2005
LINE BLANKS
[Note (1)]
T /2
W
[Note (2)]
A
Wt
Th
t
B
Table 13
NPS
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 150 Male Oval Ring-Joint Facing Figure-8
Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
80
90
100
120
140
150
175
190
215
240
300
362
432
476
540
578
635
749
6.4
6.4
6.4
6.4
9.7
9.7
9.7
9.7
12.7
12.7
15.7
19.1
22.4
22.4
25.4
28.4
28.4
35.1
51
51
57
57
57
57
64
64
76
83
95
102
121
127
127
127
127
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-13
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
--`,,```,,,,````-`-`,,`,,`,`,,`---
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16
Not for Resale
--`,,```,,,,````-`-`,,`,,`,`,,`---
LINE BLANKS
ASME B16.48-2005
[Note (1)]
T/2
W
[Note (2)]
A
Wt
Th
t
B
Table 14
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 300 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
65
80
90
100
115
125
150
170
180
200
235
270
330
390
450
415
570
630
685
810
6.4
9.7
9.7
9.7
9.7
12.7
15.7
15.7
19.1
15.7
19.1
22.4
25.4
28.4
35.1
38.1
41.1
44.5
50.8
57.2
38
45
51
51
57
57
57
57
64
64
76
83
95
102
121
127
127
127
127
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-14
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
17
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ASME B16.48-2005
LINE BLANKS
[Note (1)]
T /2
W
[Note (2)]
A
Wt
Th
t
B
Table 15
--`,,```,,,,````-`-`,,`,,`,`,,`---
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 600 Male Oval Ring-Joint Facing Figure-8
Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
102
114
141
168
219
273
324
356
406
457
508
610
65
80
90
100
115
125
150
170
180
215
265
290
350
430
490
525
605
650
720
840
6.4
9.7
9.7
9.7
9.7
12.7
15.7
15.7
19.1
19.1
22.4
28.4
35.1
41.1
47.8
50.8
57.2
63.5
69.9
82.6
38
45
51
57
57
51
57
67
67
73
73
73
83
121
121
121
127
133
127
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-15
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
18
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LINE BLANKS
ASME B16.48-2005
[Note (1)]
--`,,```,,,,````-`-`,,`,,`,`,,`---
T/2
W
[Note (2)]
A
Wt
Th
t
B
Table 16
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 900 Male Oval Ring-Joint Facing Figure-8
Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
356
406
457
508
610
80
90
100
110
125
165
190
190
235
280
315
395
470
535
560
615
685
750
900
9.7
9.7
9.7
12.7
12.7
15.7
19.1
19.1
25.4
28.4
31.8
41.1
47.8
57.2
60.5
69.9
76.2
85.9
98.6
38
45
51
54
54
51
54
67
73
73
73
79
121
121
121
127
133
127
152
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-16
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
19
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ASME B16.48-2005
LINE BLANKS
[Note (1)]
T /2
W
[Note (2)]
A
Wt
Th
t
B
Table 17
NPS
1
3
⁄2
⁄4
--`,,```,,,,````-`-`,,`,,`,`,,`---
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 1500 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
356
406
457
508
610
83
89
102
111
124
165
191
203
241
292
318
394
483
572
635
705
775
832
991
9.7
9.7
12.7
12.7
15.7
19.1
22.4
28.4
31.8
38.1
41.1
50.8
63.5
73.2
79.2
88.9
98.6
108.0
127.0
38
45
54
54
57
54
57
73
76
76
79
86
133
133
140
146
152
165
178
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-17
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
20
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LINE BLANKS
ASME B16.48-2005
[Note (1)]
T/2
W
[Note (2)]
A
Wt
Th
t
B
Table 18
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
[Note (3)]
Dimensions of Class 2500 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
mm
Centerline
Dimension, A,
mm
Thickness, t,
mm
Web Width, W,
mm
21
27
34
42
48
61
73
89
114
141
168
219
273
324
90
95
110
130
145
170
195
230
270
325
370
440
540
620
12.7
15.7
15.7
19.1
22.4
25.4
28.4
31.8
38.1
47.8
57.2
69.9
82.6
98.6
41
48
54
54
61
57
61
76
83
89
95
95
95
152
--`,,```,,,,````-`-`,,`,,`,`,,`---
GENERAL NOTE: Dimensions are in millimeters. For inch dimensions, refer to corresponding Table A-18
in Nonmandatory Appendix A.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
21
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ASME B16.48-2005
NONMANDATORY APPENDIX A
DIMENSIONAL DATA FOR LINE BLANKS IN
U.S. CUSTOMARY UNITS
--`,,```,,,,````-`-`,,`,,`,`,,`---
The tables and figures included in this appendix provide dimensional data in U.S. Customary units for the
following: Class 150, 300, 600, 900, 1500, and 2500 blanks.
22
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NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table A-1
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 150 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
1.75
2.12
2.50
2.88
3.25
4.00
4.75
5.25
6.25
6.75
7.62
8.62
10.88
13.25
16.00
17.62
20.12
21.50
23.75
28.12
2.38
2.75
3.12
3.50
3.88
4.75
5.50
6.00
7.00
7.50
8.50
9.50
11.75
14.25
17.00
18.75
21.25
22.75
25.00
29.50
0.12
0.12
0.12
0.25
0.25
0.25
0.25
0.25
0.38
0.38
0.38
0.50
0.50
0.62
0.75
0.75
0.88
1.00
1.12
1.25
1.50
1.50
1.50
1.50
1.50
2.00
2.00
2.50
2.50
2.50
3.00
3.00
3.00
4.00
4.00
4.25
4.25
4.50
4.75
5.50
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 1.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
--`,,```,,,,````-`-`,,`,,`,`,,`---
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23
Not for Resale
ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table A-2
NPS
Dimensions of Class 300 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.00
2.50
2.75
3.12
3.62
4.25
5.00
5.75
6.38
7.00
8.38
9.75
12.00
14.12
16.50
19.00
21.12
23.38
25.62
30.38
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
7.88
9.25
10.62
13.00
15.25
17.75
20.25
22.50
24.75
27.00
32.00
0.25
0.25
0.25
0.25
0.25
0.38
0.38
0.38
0.50
0.50
0.62
0.62
0.88
1.00
1.12
1.25
1.50
1.62
1.75
2.00
1.50
1.50
1.50
1.50
1.50
2.00
2.00
2.50
2.50
2.50
3.00
3.00
3.00
4.00
4.00
4.25
4.25
4.50
4.75
5.50
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 2.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
--`,,```,,,,````-`-`,,`,,`,`,,`---
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24
Not for Resale
NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table A-3
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 600 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.44
1.68
2.16
2.64
3.26
3.76
4.26
5.30
6.36
8.33
10.42
12.39
13.62
15.62
17.62
19.56
23.50
2.00
2.50
2.75
3.12
3.62
4.25
5.00
5.75
6.25
7.50
9.38
10.38
12.50
15.62
17.88
19.25
22.12
24.00
26.75
31.00
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
8.50
10.50
11.50
13.75
17.00
19.25
20.75
23.75
25.75
28.50
33.00
0.25
0.25
0.25
0.38
0.38
0.38
0.50
0.50
0.62
0.62
0.75
0.88
1.12
1.38
1.62
1.75
2.00
2.12
2.50
2.88
1.50
1.50
2.25
2.25
2.62
2.25
2.62
2.62
3.00
3.00
3.38
3.38
3.75
4.12
4.12
4.50
4.88
5.25
5.25
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 3.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
25
--`,,```,,,,````-`-`,,`,,`,`,,`---
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ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table A-4
NPS
Dimensions of Class 900 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.44
1.68
2.16
2.64
3.26
4.26
5.30
6.36
8.33
10.42
12.39
13.62
15.62
17.62
19.56
23.50
2.38
2.62
3.00
3.38
3.75
5.50
6.38
6.50
8.00
9.62
11.25
14.00
17.00
19.50
20.38
22.50
25.00
27.38
32.88
3.25
3.50
4.00
4.38
4.88
6.50
7.50
7.50
9.25
11.00
12.50
15.50
18.50
21.00
22.00
24.25
27.00
29.50
35.50
0.25
0.25
0.25
0.38
0.38
0.50
0.50
0.62
0.75
0.88
1.00
1.38
1.62
1.88
2.12
2.38
2.62
2.88
3.50
1.50
1.62
2.25
2.25
2.62
2.25
2.62
2.62
3.00
3.38
3.38
3.75
4.12
4.12
4.50
4.88
5.25
5.25
6.00
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 4.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
26
--`,,```,,,,````-`-`,,`,,`,`,,`---
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Not for Resale
NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
NPS
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 1500 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.38
1.61
2.07
2.47
3.07
4.03
5.05
6.06
7.98
10.02
11.94
13.12
15.00
16.88
18.81
22.62
2.38
2.62
3.00
3.38
3.75
5.50
6.38
6.75
8.12
9.88
11.00
13.75
17.00
20.38
22.62
25.12
27.62
29.62
35.38
3.25
3.50
4.00
4.38
4.88
6.50
7.50
8.00
9.50
11.50
12.50
15.50
19.00
22.50
25.00
27.75
30.50
32.75
39.00
0.25
0.38
0.38
0.38
0.50
0.50
0.62
0.75
0.88
1.12
1.38
1.62
2.00
2.38
2.62
3.00
3.38
3.75
4.38
1.50
1.62
2.20
2.50
2.75
2.75
3.00
3.00
3.50
3.50
3.50
4.00
4.50
4.50
5.00
5.25
5.75
6.00
7.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 5.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
27
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--`,,```,,,,````-`-`,,`,,`,`,,`---
Table A-5
ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
W
A
O
[Note (3)]
[Note (3)]
O
B
Wt
t
[Note (2)]
Table A-6
--`,,```,,,,````-`-`,,`,,`,`,,`---
NPS
Dimensions of Class 2500 Raised Face Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.62
0.82
1.05
1.38
1.61
2.07
2.47
3.07
4.03
5.05
6.06
7.81
9.75
11.37
2.62
2.88
3.25
4.00
4.50
5.62
6.50
7.62
9.12
10.88
12.38
15.12
18.62
21.50
3.50
3.75
4.25
5.12
5.75
6.75
7.75
9.00
10.75
12.75
14.50
17.25
21.25
24.38
0.38
0.38
0.38
0.50
0.62
0.62
0.75
0.88
1.12
1.38
1.62
2.12
2.62
3.12
1.50
1.62
2.50
2.50
2.75
2.75
3.00
3.00
3.50
3.50
3.50
4.00
4.50
4.50
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 6.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
(3) Refer to para. 3.3.1.
28
Copyright ASME International
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Not for Resale
NONMANDATORY APPENDIX A
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table A-7
NPS
--`,,```,,,,````-`-`,,`,,`,`,,`---
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 1500 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.50
2.88
3.25
4.00
4.75
5.25
6.06
6.75
7.62
8.62
10.75
13.00
16.00
16.75
19.00
21.50
23.50
28.00
3.12
3.50
3.88
4.75
5.50
6.00
7.00
7.50
8.50
9.50
11.75
14.25
17.00
18.75
21.25
22.75
25.00
29.50
0.75
0.75
0.75
0.75
0.88
0.88
0.88
0.88
1.00
1.00
1.12
1.25
1.38
1.38
1.50
1.62
1.62
1.88
2.00
2.00
2.25
2.25
2.25
2.25
2.50
2.50
2.75
3.25
3.75
4.00
4.75
5.00
5.00
5.00
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 7.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
29
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Not for Resale
ASME B16.48-2005
NONMANDATORY APPENDIX A
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
--`,,```,,,,````-`-`,,`,,`,`,,`---
B
t
O
O
[Note (3)]
Table A-8
NPS
Dimensions of Class 300 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.00
2.50
2.75
3.12
3.56
4.25
5.00
5.75
6.25
6.88
8.25
9.50
11.88
14.00
16.25
18.00
20.00
22.62
25.00
29.50
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
7.88
9.25
10.62
13.00
15.25
17.75
20.25
22.50
24.75
27.00
32.00
0.62
0.75
0.75
0.88
0.88
1.00
1.12
1.12
1.12
1.25
1.38
1.38
1.62
1.75
2.00
2.12
2.25
2.38
2.75
3.12
1.50
1.75
2.00
2.00
2.25
2.25
2.25
2.25
2.50
2.50
2.75
3.25
3.75
4.00
4.75
5.00
5.00
5.00
5.00
6.00
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 8.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
30
Copyright ASME International
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Not for Resale
NONMANDATORY APPENDIX A
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 600 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.00
2.50
2.75
3.12
3.56
4.25
5.00
5.75
6.25
6.88
8.25
9.50
11.88
14.00
16.25
18.00
20.00
22.62
25.00
29.50
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
8.50
10.50
11.50
13.75
17.00
19.25
20.75
23.75
25.75
28.50
33.00
0.75
0.88
0.88
0.88
0.88
1.12
1.25
1.25
1.38
1.38
1.50
1.75
2.00
2.25
2.50
2.62
2.88
3.12
3.50
4.12
1.50
1.75
2.00
2.00
2.25
2.25
2.25
2.25
2.50
2.50
2.75
3.25
3.75
4.00
4.75
5.00
5.00
5.00
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 9.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
31
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--`,,```,,,,````-`-`,,`,,`,`,,`---
Table A-9
ASME B16.48-2005
NONMANDATORY APPENDIX A
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
Table A-10
NPS
Dimensions of Class 900 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.38
2.62
2.81
3.19
3.62
4.88
5.38
6.12
7.12
8.50
9.50
12.12
14.25
16.50
18.38
20.62
23.38
25.50
30.38
3.25
3.50
4.00
4.38
4.88
6.50
7.50
7.50
9.25
11.00
12.50
15.50
18.50
21.00
22.00
24.25
27.00
29.50
35.50
0.88
0.88
0.88
1.00
1.00
1.25
1.38
1.38
1.62
1.75
1.88
2.25
2.50
2.88
3.25
3.62
4.00
4.38
5.25
1.50
1.75
2.00
2.00
2.50
2.00
2.62
2.62
2.88
2.88
2.88
3.12
4.75
4.75
4.75
5.00
5.25
5.00
5.50
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 10.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
32
--`,,```,,,,````-`-`,,`,,`,`,,`---
Copyright ASME International
Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS
Not for Resale
NONMANDATORY APPENDIX A
ASME B16.48-2005
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
--`,,```,,,,````-`-`,,`,,`,`,,`---
B
t
O
O
[Note (3)]
Table A-11
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 1500 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.38
2.62
2.81
3.19
3.62
4.88
5.38
6.62
7.62
9.00
9.75
12.50
14.62
17.25
19.25
21.50
24.12
26.50
31.25
3.25
3.50
4.00
4.38
4.88
6.50
7.50
8.00
9.50
11.50
12.50
15.50
19.00
22.50
25.00
27.75
30.50
32.75
39.00
0.88
1.00
1.00
1.00
1.12
1.38
1.50
1.75
1.88
2.12
2.38
2.88
3.25
4.00
4.38
4.88
5.25
5.62
6.62
1.50
1.75
2.12
2.12
2.25
2.12
2.25
2.88
3.00
3.00
3.12
3.38
5.25
5.25
5.50
5.75
6.00
6.50
7.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 11.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
33
Copyright ASME International
Provided by IHS under license with ASME
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Not for Resale
ASME B16.48-2005
NONMANDATORY APPENDIX A
23 deg ⫾1/2 deg
[Note (1)]
W
[Note (2)]
A
Wt
B
t
O
O
[Note (3)]
NPS
Dimensions of Class 2500 Female Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Outside
Diameter, O,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
2.56
2.88
3.25
4.00
4.50
5.25
5.88
6.62
8.00
9.50
11.00
13.38
16.75
19.50
3.50
3.75
4.25
5.12
5.75
6.75
7.75
9.00
10.75
12.75
14.50
17.25
21.25
24.38
1.00
1.12
1.12
1.38
1.50
1.62
1.88
2.00
2.50
2.88
3.25
3.88
4.62
5.25
1.50
1.75
2.12
2.12
2.38
2.25
2.38
3.00
3.25
3.50
3.75
3.75
3.58
6.00
1
⁄2
⁄4
3
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 12.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Female ring-joint groove dimensions shall be in accordance with ASME B16.5.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
34
Copyright ASME International
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No reproduction or networking permitted without license from IHS
Not for Resale
--`,,```,,,,````-`-`,,`,,`,`,,`---
Table A-12
NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
T/2
W
[Note (2)]
A
Wt
Th
t
B
Dimensions of Class 150 Male Oval Ring-Joint Facing
Figure-8 Blanks
Table A-13
NPS
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
3.12
3.50
3.88
4.75
5.50
6.00
7.00
7.50
8.50
9.50
11.75
14.25
17.00
18.75
21.25
22.75
25.00
29.50
0.25
0.25
0.25
0.25
0.38
0.38
0.38
0.38
0.50
0.50
0.62
0.75
0.88
0.88
1.00
1.12
1.12
1.38
2.00
2.00
2.25
2.25
2.25
2.25
2.50
2.50
3.00
3.25
3.75
4.00
4.75
5.00
5.00
5.00
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 13.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
--`,,```,,,,````-`-`,,`,,`,`,,`---
Copyright ASME International
Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS
35
Not for Resale
ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
T /2
W
[Note (2)]
A
Wt
Th
t
B
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
Dimensions of Class 300 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
7.88
9.25
10.62
13.00
15.25
17.75
20.25
22.50
24.75
27.00
32.00
0.25
0.38
0.38
0.38
0.38
0.50
0.62
0.62
0.75
0.62
0.75
0.88
1.00
1.12
1.38
1.50
1.62
1.75
2.00
2.25
1.50
1.75
2.00
2.00
2.25
2.25
2.25
2.25
2.50
2.50
3.00
3.25
3.75
4.00
4.75
5.00
5.00
5.00
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 14.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
36
Copyright ASME International
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Not for Resale
--`,,```,,,,````-`-`,,`,,`,`,,`---
Table A-14
[Note (3)]
NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
--`,,```,,,,````-`-`,,`,,`,`,,`---
T/2
W
[Note (2)]
A
Wt
Th
t
B
Table A-15
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
31⁄2
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 600 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.00
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
2.62
3.25
3.50
3.88
4.50
5.00
5.88
6.62
7.25
8.50
10.50
11.50
13.75
17.00
19.25
20.75
23.75
25.75
28.50
33.00
0.25
0.38
0.38
0.38
0.38
0.50
0.62
0.62
0.75
0.75
0.88
1.12
1.38
1.62
1.88
2.00
2.25
2.50
2.75
3.25
1.50
1.75
2.00
2.25
2.25
2.00
2.25
2.62
2.62
2.88
2.88
2.88
3.25
4.75
4.75
4.75
5.00
5.25
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 15.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
37
Copyright ASME International
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Not for Resale
ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
T /2
W
[Note (2)]
A
Wt
Th
t
B
Table A-16
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 900 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
3.25
3.50
4.00
4.38
4.88
6.50
7.50
7.50
9.25
11.00
12.50
15.50
18.50
21.00
22.00
24.25
27.00
29.50
35.50
0.38
0.38
0.38
0.50
0.50
0.62
0.75
0.75
1.00
1.12
1.25
1.62
1.88
2.25
2.38
2.75
3.00
3.38
3.88
1.50
1.75
2.00
2.12
2.12
2.00
2.12
2.62
2.88
2.88
2.88
3.12
4.75
4.75
4.75
5.00
5.25
5.00
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 16.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
38
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NONMANDATORY APPENDIX A
ASME B16.48-2005
[Note (1)]
T/2
W
[Note (2)]
A
--`,,```,,,,````-`-`,,`,,`,`,,`---
Wt
Th
t
B
Table A-17
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
14
16
18
20
24
[Note (3)]
Dimensions of Class 1500 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
14.00
16.00
18.00
20.00
24.00
3.25
3.50
4.00
4.38
4.88
6.50
7.50
8.00
9.50
11.50
12.50
15.50
19.00
22.50
25.00
27.75
30.50
32.75
39.00
0.38
0.38
0.50
0.50
0.62
0.75
0.88
1.12
1.25
1.50
1.62
2.00
2.50
2.88
3.12
3.50
3.88
4.25
5.00
1.50
1.75
2.12
2.12
2.25
2.12
2.25
2.88
3.00
3.00
3.12
3.38
5.25
5.25
5.50
5.75
6.00
6.50
7.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 17.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
39
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ASME B16.48-2005
NONMANDATORY APPENDIX A
[Note (1)]
T /2
[Note (2)]
--`,,```,,,,````-`-`,,`,,`,`,,`---
W
A
Wt
Th
t
B
Table A-18
NPS
1
3
⁄2
⁄4
1
11⁄4
11⁄2
2
21⁄2
3
4
5
6
8
10
12
[Note (3)]
Dimensions of Class 2500 Male Oval Ring-Joint Facing
Figure-8 Blanks
Inside
Diameter, B,
in.
Centerline
Dimension, A,
in.
Thickness, t,
in.
Web Width, W,
in.
0.84
1.05
1.32
1.66
1.90
2.38
2.88
3.50
4.50
5.56
6.62
8.62
10.75
12.75
3.50
3.75
4.25
5.12
5.75
6.75
7.75
9.00
10.75
12.75
14.50
17.25
21.25
24.38
0.50
0.62
0.62
0.75
0.88
1.00
1.12
1.25
1.50
1.88
2.25
2.75
3.25
3.88
1.62
1.88
2.12
2.12
2.38
2.25
2.38
3.00
3.25
3.50
3.75
3.75
3.75
6.00
GENERAL NOTE: Dimensions are in inches. For millimeter dimensions, refer to corresponding Table 18.
NOTES:
(1) Hole size (where required due to bolt spacing) shall be the same as the flange bolt hole and located
such that it will not interfere with bolting between two flanges.
(2) Oval ring-joint dimensions shall be in accordance with ASME B16.20, except Th p T + t, where T is
the ring height specified in ASME B16.20.
(3) The thickness of the web (or tie bar) dimension, Wt, shall be as determined by para. 3.1.
40
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ASME B16.48-2005
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NONMANDATORY APPENDIX B
REFERENCES
The following is a list of publications referenced in
this Standard.
ISO 6708: 1995, Pipework Components — Definitions
and Selection of DN (Nominal Size)
ISO 9000: 2000, Quality Management Systems — Fundamentals and Vocabulary
IS0 9001: 2000, Quality Management Systems — Model
Requirements
IS0 9003: 2000, Quality Systems — Model for Quality
Assurance in Final Inspection and Test
ISO 9004: 2000, Quality Management Systems — Guidelines for Performance Improvements
Publisher: International Organization for Standardization (ISO), 1 rue de Varembé, Case Postale 56, CH1211, Genève 20, Switzerland/Suisse
ASME B16.5-2003, Pipe Flanges and Flanged Fittings
ASME B16.20-1998, Metallic Gaskets for Pipe Flanges —
Ring-Joint, Spiral-Wound, and Jacketed
ASME B46.1-2002, Surface Texture (Surface Roughness,
Waviness, and Lay)
Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY
10016/5990; Order Department: 22 Law Drive, P.O.
Box 2300, Fairfield, NJ 07007-2300
ASTM E 29-1993a (1999), Using Significant Digits in Test
Data to Determine Conformance with Specifications
Publisher: American Society for Testing and Materials
(ASTM), 100 Barr Harbor Drive, West Conshohocken,
PA 19428-2959
Publications appearing above which have been
approved as American National Standards may also be
obtained from the American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036.
41
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ASME B16.48-2005
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.1 A determination of the
need for registration and/or certification of the product
manufacturer’s quality system program by an independent organization shall be the responsibility of the manufacturer. The detailed documentation demonstrating
program compliance shall be available to the purchaser
at the manufacturer ’s facility. A written summary
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.
1
The series is also available from the American National Standards Institute (ANSI) and the American Society for Quality Control (ASQ) as American National Standards that are identified by
a prefix “Q” replacing the prefix “ISO.” Each standard of the series
is listed under Nonmandatory Appendix B.
42
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NONMANDATORY APPENDIX C
QUALITY SYSTEM PROGRAM
ASME B16.48-2005
--`,,```,,,,````-`-`,,`,,`,`,,`---
J14405
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