-
Flanges
8-23
Blind Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- Flat face flanges may be provided at full thickness,
C, or with raised face removed (the latter is nonstandard).- For
ring joint facings see page 8-6. - For tolerances see page 8-4.
Class 150 lb
Pipe Flange Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
FlangeThickness
min
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holes kg/piecein
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.50088.90
0.44011.20
1.38035.10
40.62015.70
2.38060.45
0.42
3/41.05026.70
3.88098.60
0.50012.70
1.69042.90
40.62015.70
2.75069.85
0.61
1 1.31533.40
4.250108.0
0.56014.20
2.00050.80
40.62015.70
3.12079.25
0.86
11/41.66042.20
4.620117.3
0.62015.70
2.50063.50
40.62015.70
3.50088.90
1.17
11/21.90048.30
5.000127.0
0.69017.50
2.88073.15
40.62015.70
3.88098.60
1.53
2 2.37560.30
6.000152.4
0.75019.10
3.62091.90
40.75019.10
4.750120.7
2.42
21/22.87573.00
7.000177.8
0.88022.40
4.120104.6
40.75019.10
5.500139.7
3.94
3 3.50088.90
7.500190.5
0.94023.90
5.000127.0
40.75019.10
6.000152.4
4.93
31/24.000101.6
8.500215.9
0.94023.90
5.500139.7
80.75019.10
7.000177.8
6.17
4 4.500114.3
9.000228.6
0.94023.90
6.190157.2
80.75019.10
7.500190.5
7.00
5 5.563141.3
10.00254.0
0.94023.90
7.310185.7
80.88022.40
8.500215.9
8.63
6 6.625168.3
11.00279.4
1.00025.40
8.500215.9
80.88022.40
9.500241.3
11.3
8 8.625219.1
13.50342.9
1.12028.40
10.62269.7
80.88022.40
11.75298.5
19.6
10 10.75273.0
16.00406.4
1.19030.20
12.75323.9
121.00025.40
14.25362.0
28.8
12 12.75323.8
19.00482.6
1.25031.75
15.00381.0
121.00025.40
17.00431.8
43.2
14 14.00355.6
21.00533.4
1.38035.10
16.25412.8
121.12028.40
18.75476.3
58.1
16 16.00406.4
23.50596.9
1.44036.60
18.50469.9
161.12028.40
21.25539.8
76.0
18 18.00457.2
25.00635.0
1.56039.60
21.00533.4
161.25031.75
22.75577.9
93.7
20 20.00508.0
27.50698.5
1.69042.90
23.00584.2
201.25031.75
25.00635.0
122
24 24.00609.6
32.00812.8
1.88047.80
27.25692.2
201.38035.10
29.50749.3
185
-
8-16
Weld Neck Flanges - ANSI B16.5
Notes- Dimension B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness.- Weights are
based on manufacturer’s data and are approximate.- For ring joint
facings see page 8-6. For weld end bevel see page 8-5. - For
tolerances see page 8-4.
Class 2500 lb
Pipe Flange Data Hub Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Diameterat Weld Bevel
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
5.250133.4
To b
e s
pecifie
d b
yP
urc
ha
ser
1.19030.20
2.88073.15
0.84021.30
1.69042.90
1.38035.00
40.88022.40
3.50088.90
3.12
3/41.05026.70
5.500139.7
1.25031.75
3.12079.25
1.05026.70
2.00050.80
1.69042.90
40.88022.40
3.75095.30
3.70
1 1.31533.40
6.250158.8
1.38035.10
3.50088.90
1.32033.50
2.25057.15
2.00050.80
41.00025.40
4.250108.0
5.24
11/41.66042.20
7.250184.2
1.50038.10
3.75095.30
1.66042.20
2.88073.15
2.50063.50
41.12028.40
5.120130.0
7.74
11/21.90048.30
8.000203.2
1.75044.50
4.380111.3
1.90048.30
3.12079.25
2.88073.15
41.25031.75
5.750146.1
10.9
2 2.37560.30
9.250235.0
2.00050.80
5.000127.0
2.38060.45
3.75095.30
3.62091.90
81.12028.40
6.750171.5
16.2
21/22.87573.00
10.50266.7
2.25057.15
5.620142.7
2.88073.15
4.500114.3
4.120104.6
81.25031.75
7.750196.9
23.7
3 3.50088.90
12.00304.8
2.62066.55
6.620168.1
3.50088.90
5.250133.4
5.000127.0
81.38035.10
9.000228.6
36.2
4 4.500114.3
14.00355.6
3.00076.20
7.500190.5
4.500114.3
6.500165.1
6.190157.2
81.62041.10
10.75273.1
55.3
5 5.563141.3
16.50419.1
3.62091.90
9.000228.6
5.560141.2
8.000203.2
7.310185.7
81.88047.80
12.75323.9
92.5
6 6.625168.3
19.00482.6
4.250108.0
10.75273.1
6.630168.4
9.250235.0
8.500215.9
82.12053.80
14.50368.3
143
8 8.625219.1
21.75552.5
5.000127.0
12.50317.5
8.630219.2
12.00304.8
10.62269.7
122.12053.80
17.25438.2
215
10 10.75273.0
26.50673.1
6.500165.1
16.50419.1
10.75273.0
14.75374.7
12.75323.8
122.62066.55
21.25539.8
406
12 12.75323.8
30.00762.0
7.250184.2
18.25463.6
12.75323.8
17.38441.5
15.00381.0
122.88073.15
24.38619.3
572
-
Flanges
8-45
Threaded Flanges - ANSI B16.5
Notes- The thread conforms to ASME B1.20.1 NTP threads as
described in Section 10. (The only exceptions are small male
and
female plain face threaded flanges which use NPSL locknut
threads.)- Class 300 and higher threaded flanges are counter-bored.
Threads are chamfered to the counterbore at an angle of 45°
(approx).
- Weights are based on manufacturer’s data and are approximate.-
For tolerances see page 8-4.
Class 2500 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
OverallDiameter
Counter-boremin
FlangeThickness
min
Overall Length
Threaded lengthmin
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
5.250133.4
0.93023.60
1.19030.20
1.56039.60
1.12028.40
1.69042.90
1.38035.10
40.88022.40
3.50088.90
2.95
3/41.05026.70
5.500139.7
1.14029.00
1.25031.75
1.69042.90
1.25031.75
2.00050.80
1.69042.90
40.88022.40
3.75095.30
3.44
1 1.31533.40
6.250158.8
1.41035.80
1.38035.10
1.88047.80
1.38035.10
2.25057.15
2.00050.80
41.00025.40
4.250108.0
4.82
11/41.66042.20
7.2501.842
1.75044.50
1.50038.10
2.06052.30
1.50038.10
2.88073.15
2.50063.50
41.12028.40
5.120130.0
7.14
11/21.90048.30
8.000203.2
1.99050.50
1.75044.50
2.38060.45
1.75044.50
3.12079.25
2.88073.15
41.25031.75
5.750146.1
10.0
2 2.37560.30
9.250235.0
2.50063.50
2.00050.80
2.75069.85
2.00050.80
3.75095.30
3.62091.90
81.12028.40
6.750171.5
14.8
21/22.87573.00
10.50266.7
3.00076.20
2.25057.15
3.12079.25
2.25057.15
4.500114.3
4.120104.6
81.25031.75
7.750196.9
21.5
-
8-38
Flanges
Lap Joint Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For tolerances see page 8-4.
Class 2500 lb
Pipe Flange Data Lap Hub Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Lap Radius
Hub Diameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
5.255133.4
0.90022.90
1.19030.20
1.56039.60
0.1203.000
1.69042.90
40.88022.40
3.50088.90
2.92
3/41.05026.70
5.500139.7
1.11028.20
1.25031.75
1.69042.90
0.1203.000
2.00050.80
40.88022.40
3.75095.30
3.40
1 1.31533.40
6.250158.8
1.38035.10
1.38035.10
1.88047.80
0.1203.000
2.25057.15
41.00025.40
4.250108.0
4.77
11/41.66042.20
7.250184.2
1.72043.70
1.50038.10
2.06052.30
0.1904.800
2.88073.15
41.12028.40
5.120130.0
7.08
11/21.90048.30
8.000203.2
1.97050.00
1.75044.50
2.38060.45
0.2506.400
3.12079.25
41.25031.75
5.750146.1
9.93
2 2.37560.30
9.250235.0
2.46062.50
2.00050.80
2.75069.85
0.3107.900
3.75095.30
81.12028.40
6.750171.5
14.7
21/22.87573.00
10.50266.7
2.97075.40
2.25057.15
3.12079.25
0.3107.900
4.500114.3
81.25031.75
7.750196.9
21.3
3 3.50088.90
12.00304.8
3.60091.40
2.62066.55
3.62091.90
0.3809.700
5.250133.4
81.38035.10
9.000228.6
32.3
4 4.500114.3
14.00355.6
4.600116.8
3.00076.20
4.250108.0
0.44011.20
6.500165.1
81.62041.10
10.75273.1
52.5
5 5.563141.3
16.50419.1
5.690114.5
3.62091.90
5.120130.0
0.44011.20
8.000203.2
81.88047.80
12.75323.9
82.6
6 6.625168.3
19.00482.6
6.750171.5
4.250108.0
6.000152.4
0.50012.70
9.250235.0
82.12053.80
14.50368.3
127
8 8.625219.1
21.75552.5
8.750222.3
5.000127.0
7.000177.8
0.50012.70
12.00304.8
122.12053.80
17.25438.2
186
10 10.75273.0
26.50673.1
10.92277.4
6.500165.1
9.000228.6
0.50012.70
14.75374.7
122.62066.55
21.25539.8
352
12 12.75323.8
30.00762.0
12.92328.2
7.250184.2
10.00254.0
0.50012.70
17.38441.5
122.88073.15
24.38619.3
501
-
Flanges
8-29
Blind Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6. - For tolerances
see page 8-4.
Class 2500 lb
Pipe Flange Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
FlangeThickness
min
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holes kg/piecein
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
5.250133.4
1.19030.20
1.38035.10
40.88022.40
3.50088.90
2.99
3/41.05026.70
5.500139.7
1.25031.70
1.69042.90
40.88022.40
3.75095.30
3.50
1 1.31533.40
6.250158.8
1.38035.10
2.00050.80
41.00025.40
4.250108.0
4.96
11/41.66042.20
7.250184.2
1.50038.10
2.50063.50
41.12028.40
5.120130.0
7.35
11/21.90048.30
8.000203.2
1.75044.50
2.88073.15
41.25031.75
5.750146.1
10.4
2 2.37560.30
9.250235.0
2.00050.80
3.62091.90
81.12028.40
6.750171.5
15.6
21/22.87573.00
10.50266.7
2.25057.15
4.120104.6
81.25031.75
7.750196.9
22.6
3 3.50088.90
12.00304.8
2.62066.55
5.000127.0
81.38035.10
9.000228.6
34.8
4 4.500114.3
14.00355.6
3.00076.20
6.190157.2
81.62041.10
10.75273.1
53.9
5 5.563141.3
16.50419.1
3.62091.90
7.310185.7
81.88847.88
12.75323.9
90.8
6 6.625168.3
19.00482.6
4.250108.0
8.500215.9
82.12053.80
14.50368.3
141
8 8.625219.1
21.75552.5
5.000127.0
10.62269.7
122.12053.80
17.25438.2
214
10 10.75273.0
26.50673.1
6.500165.1
12.75323.9
122.62066.55
21.25539.8
411
12 12.75323.8
30.00762.0
7.250184.2
15.00381.0
122.88073.15
24.38619.3
592
-
Flanges
8-15
Weld Neck Flanges - ANSI B16.5
Notes- Dimension B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness.- Weights are
based on manufacturer’s data and are approximate.- For ring joint
facings see page 8-6. For weld end bevel see page 8-5. - For
tolerances see page 8-4.
Class 1500 lb
Pipe Flange Data Hub Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Diameterat Weld Bevel
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
To
be
spe
cifie
d b
yP
urc
hase
r
0.88022.30
2.38060.45
0.84021.30
1.50038.10
1.38035.00
40.88022.30
3.25082.50
1.87
3/41.05026.70
5.120130.0
1.00025.40
2.75069.85
1.05026.70
1.75044.00
1.69042.90
40.88022.30
3.50088.90
2.56
1 1.31533.40
5.880149.3
1.12028.40
2.88073.15
1.32033.50
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.74
11/41.66042.20
6.250158.7
1.12028.40
2.88073.15
1.66042.20
2.50063.50
2.50063.50
41.00025.40
4.380111.2
4.33
11/21.90048.30
7.000177.8
1.25031.70
3.25082.50
1.90048.30
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.94
2 2.37560.30
8.500215.9
1.50038.10
4.000101.6
2.38060.45
4.120104.6
3.62091.90
81.00025.40
6.500165.1
10.8
21/22.87573.00
9.620244.3
1.62041.10
4.120104.6
2.88073.15
4.880123.9
4.120104.6
81.12028.40
7.500190.5
15.0
3 3.50088.90
10.50266.7
1.88047.70
4.620177.3
3.50088.90
5.250133.3
5.000127.0
81.25031.70
8.000203.2
19.9
4 4.500114.3
12.25311.1
2.12053.80
4.880123.9
4.500114.3
6.380162.0
6.190157.2
81.38035.00
9.500241.3
29.9
5 5.563141.3
14.75374.6
2.88073.15
6.120155.4
5.560141.2
7.750196.8
7.310185.7
81.62041.10
11.50292.1
55.4
6 6.625168.3
15.50393.7
3.25082.50
6.750171.4
6.630168.4
9.000228.6
8.500215.9
121.50038.10
12.50317.5
68.4
8 8.625219.1
19.00482.6
3.62091.90
8.380212.8
8.630219.2
11.50292.1
10.62269.7
121.75044.40
15.50393.7
117
10 10.75273.0
23.00584.2
4.250107.9
10.00254.0
10.75273.0
14.50368.3
12.75323.8
122.00050.80
19.00482.6
194
12 12.75323.8
26.50673.1
4.880123.9
11.12282.4
12.75323.8
17.75450.8
15.00381.0
162.12053.80
22.50571.5
288
14 14.00355.6
29.50749.3
5.250133.3
11.75298.4
14.00355.6
19.50495.3
16.25412.7
162.38060.45
25.00635.0
380
16 16.00406.4
32.50825.5
5.750146.0
12.25311.1
16.00406.4
21.75552.4
18.50469.9
162.62066.55
27.75704.8
485
18 18.00457.2
36.00914.4
6.380162.0
12.88327.1
18.00457.2
23.50596.9
21.00533.4
162.88073.15
30.50774.7
644
20 20.00508.0
38.75984.2
7.000177.8
14.00355.6
20.00508.0
25.25641.3
23.00584.2
163.12079.25
32.75831.8
775
24 24.00609.6
46.001168.4
8.000203.2
16.00406.4
24.00609.6
30.00762.0
27.25692.1
163.62091.90
39.00990.6
1232
-
8-44
Flanges
Threaded Flanges - ANSI B16.5
Notes- The thread conforms to ASME B1.20.1 NTP threads as
described in Section 10. (The only exceptions are small male
and
female plain face threaded flanges which use NPSL locknut
threads.)- Class 300 and higher threaded flanges are counter-bored.
Threads are chamfered to the counterbore at an angle of 45°
(approx).
- Weights are based on manufacturer’s data and are approximate.-
For tolerances see page 8-4.
Class 1500 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
Counter-boremin
FlangeThickness
min
Overall Length
Threaded length
min
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.93023.60
0.88022.30
1.25031.70
0.88022.30
1.50038.10
1.38035.00
40.88022.30
3.25082.50
1.74
3/41.05026.70
5.120130.0
1.14029.00
1.00025.40
1.38035.00
1.00025.40
1.75044.40
1.69042.90
40.88022.30
3.50088.90
2.34
1 1.31533.40
5.880149.3
1.41035.80
1.12028.40
1.62041.10
1.12028.40
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.44
11/41.66042.20
6.250158.7
1.75044.40
1.12028.40
1.62041.10
1.19030.20
2.50063.50
2.50063.50
41.00025.40
4.380111.2
3.91
11/21.90048.30
7.000177.8
1.99050.50
1.25031.70
1.75044.50
1.25031.70
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.36
2 2.37560.30
8.500215.9
2.50063.50
1.50038.10
2.25057.15
1.50038.10
4.120104.6
3.62091.90
81.00025.40
6.500165.1
9.85
21/22.87573.00
9.620244.3
3.00076.20
1.62041.10
2.50063.50
1.88047.70
4.880123.9
4.120104.6
81.12028.40
7.500190.5
13.7
-
8-22
Flanges
Slip On Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6.- For tolerances
see page 8-4.
Class 1500 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Hub Diameter
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.88022.40
0.88022.40
1.25031.70
1.50038.10
1.38035.10
40.88022.40
3.25082.50
1.74
3/41.05026.70
5.120130.0
1.09027.70
1.00025.40
1.38035.00
1.75044.40
1.69042.90
40.88022.40
3.50088.90
2.34
1 1.31533.40
5.880149.3
1.36034.50
1.12028.40
1.62041.10
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.44
11/41.66042.20
6.250158.7
1.70043.20
1.12028.40
1.62041.10
2.50063.50
2.50063.50
41.00025.40
4.380111.2
3.91
11/21.90048.30
7.000177.8
1.95049.50
1.25031.70
1.75044.50
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.36
2 2.37560.30
8.500215.9
2.44062.00
1.50038.10
2.25057.15
4.120104.6
3.62091.90
81.00025.40
6.500165.1
9.85
21/22.87573.00
9.620244.3
2.94074.70
1.62041.10
2.50063.50
4.880123.9
4.120104.6
81.12028.40
7.500190.5
13.7
-
Lap Joint Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For tolerances see page 8-4.
Class 1500 lb
Pipe Flange Data Lap Hub Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Lap Radius
Hub Diameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.90022.90
0.88022.30
1.25031.70
0.1203.000
1.50038.10
40.88022.30
3.25082.50
1.71
3/41.05026.70
5.120130.0
1.11028.20
1.00025.40
1.38035.00
0.1203.000
1.75044.40
40.88022.30
3.50088.90
2.30
1 1.31533.40
5.880149.3
1.38035.10
1.12028.40
1.62041.10
0.1203.000
2.06052.30
41.00025.40
4.000101.6
3.40
11/41.66042.20
6.250158.7
1.72043.70
1.12028.40
1.62041.10
0.1904.800
2.50063.50
41.00025.40
4.380111.2
3.85
11/21.90048.30
7.000177.8
1.97050.00
1.25031.70
1.75044.40
0.2506.400
2.75069.85
41.12028.40
4.880123.9
5.28
2 2.37560.30
8.500215.9
2.46062.50
1.50038.10
2.25057.15
0.3107.900
4.120104.6
81.00025.40
6.500165.1
9.78
21/22.87573.00
9.620244.3
2.97075.40
1.62041.10
2.50063.50
0.3107.900
4.880123.9
81.12028.40
7.500190.5
13.6
3 3.50088.90
10.50266.7
3.60091.40
1.88047.70
2.88073.15
0.3809.700
5.250133.3
81.25031.70
8.000203.2
17.8
4 4.500114.3
12.25311.1
4.600116.8
2.12053.80
3.56090.40
0.44011.20
6.380162.0
81.38035.00
9.500241.3
27.5
5 5.563141.3
14.75374.6
5.690114.5
2.88073.15
4.120104.6
0.44011.20
7.750196.8
81.62041.10
11.50292.1
51.5
6 6.625168.3
15.50399.7
6.750171.5
3.25082.50
4.690119.1
0.50012.70
9.000228.6
121.50038.10
12.50317.5
62.0
8 8.625219.1
19.00482.6
8.750222.3
3.62091.90
5.620142.7
0.50012.70
11.50292.1
121.75044.40
15.50393.7
105
10 10.75273.0
23.00584.2
10.92277.4
4.250107.9
7.000177.8
0.50012.70
14.50368.3
122.00050.80
19.00482.6
179
12 12.75323.8
26.50673.1
12.92328.2
4.880123.9
8.620218.9
0.50012.70
17.75450.8
162.12053.80
22.50571.5
269
14 14.00355.6
29.50749.3
14.18360.2
5.250133.3
9.500241.3
0.50012.70
19.50495.3
162.38060.45
25.00635.0
365
16 16.00406.4
32.50825.5
16.19411.2
5.750146.0
10.25260.3
0.50012.70
21.75552.4
162.62066.55
27.75704.8
459
18 18.00457.2
36.00914.4
18.20462.3
6.380162.0
10.88276.3
0.50012.70
23.50596.9
162.88073.15
30.50774.7
598
20 20.00508.0
38.75984.2
20.25514.4
7.000177.8
11.50292.1
0.50012.70
25.25641.3
163.12079.25
32.75831.8
712
24 24.00609.6
46.001168.4
24.25616.0
8.000203.2
13.00330.2
0.50012.70
30.00762.0
163.62091.90
39.00990.6
1090
-
8-28
Flanges
Blind Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6. - For tolerances
see page 8-4.
Class 1500 lb
Pipe Flange Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
FlangeThickness
min
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holes kg/piecein
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.88022.30
1.38035.10
40.88022.30
3.25082.50
1.77
3/41.05026.70
5.120130.0
1.00025.40
1.69042.90
40.88022.30
3.50088.90
2.42
1 1.31533.40
5.880149.3
1.12028.40
2.00050.80
41.00025.40
4.000101.6
3.57
11/41.66042.20
6.250158.7
1.12028.40
2.50063.50
41.00025.40
4.380111.2
4.15
11/21.90048.30
7.000177.8
1.25031.70
2.88073.15
41.12028.40
4.880123.9
5.75
2 2.37560.30
8.500215.9
1.50038.10
3.62091.90
81.00025.40
6.500165.1
10.1
21/22.87573.00
9.620244.3
1.62041.10
4.120104.6
81.12028.40
7.500190.5
14.0
3 3.50088.90
10.50266.7
1.88047.70
5.000127.0
81.25031.70
8.000203.2
19.1
4 4.500114.3
12.25311.1
2.12053.80
6.190157.2
81.38035.00
9.500241.3
29.9
5 5.563141.3
14.75374.6
2.88073.15
7.310185.7
81.62041.10
11.50292.1
58.4
6 6.625168.3
15.50393.7
3.25082.50
8.500215.9
121.50038.10
12.50317.5
71.8
8 8.625219.1
19.00482.6
3.62091.90
10.62269.7
121.75044.40
15.50393.7
122
10 10.75273.0
23.00584.2
4.250107.9
12.75323.9
122.00050.80
19.00482.6
210
12 12.75323.8
26.50673.1
4.880123.9
15.00381.0
162.12053.8
22.50571.5
316
14 14.00355.6
29.50749.3
5.250133.3
16.25412.8
162.38060.45
25.00635.0
420
16 16.00406.4
32.50825.5
5.750146.0
18.50469.9
162.62066.55
27.75704.8
558
18 18.00457.2
36.00914.4
6.380162.0
21.00533.4
162.88073.15
30.50774.7
760
20 20.00508.0
38.75984.2
7.000177.8
23.00584.2
163.12079.25
32.75831.8
965
24 24.00609.6
46.001168.4
8.000203.2
27.25692.2
163.62091.90
39.00990.6
1558
-
8-14
Weld Neck Flanges - ANSI B16.5
Notes- Dimension B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness.- Weights are
based on manufacturer’s data and are approximate.- For ring joint
facings see page 8-6. For weld end bevel see page 8-5. - For
tolerances see page 8-4.
Class 900 lb
Pipe Flange Data Hub Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Diameterat Weld Bevel
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
To
be
spe
cifie
d b
yP
urc
hase
r
0.88022.30
2.38060.45
0.84021.30
1.50038.10
1.38035.00
40.88022.30
3.25082.50
1.87
3/41.05026.70
5.120130.0
1.00025.40
2.75069.85
1.05026.70
1.75044.00
1.69042.90
40.88022.30
3.50088.90
2.56
1 1.31533.40
5.880149.3
1.12028.40
2.88073.15
1.32033.50
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.74
11/41.66042.20
6.250158.7
1.12028.40
2.88073.15
1.66042.20
2.50063.50
2.50063.50
41.00025.40
4.380111.2
4.33
11/21.90048.30
7.000177.8
1.25031.70
3.25082.50
1.90048.30
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.94
2 2.37560.30
8.500215.9
1.50038.10
4.000101.6
2.38060.45
4.120104.6
3.62091.90
81.00025.40
6.500165.1
10.8
21/22.87573.00
9.620244.3
1.62041.10
4.120104.6
2.88073.15
4.880123.9
4.120104.6
81.12028.40
7.500190.5
15.0
3 3.50088.90
9.500241.3
1.50038.10
4.000101.6
3.50088.90
5.000127.0
5.000127.0
81.00025.40
7.500190.5
13.7
4 4.500114.3
11.50292.1
1.75044.40
4.500114.3
4.500114.3
6.250158.7
6.190157.2
81.25031.70
9.250234.9
22.5
5 5.563141.3
13.75349.2
2.00050.80
5.000127.0
5.560141.2
7.500190.5
7.310185.7
81.38035.00
11.00279.4
37.4
6 6.625168.3
15.00381.0
2.19055.60
5.500139.7
6.630168.4
9.250234.9
8.500215.9
121.25031.70
12.50317.5
47.7
8 8.625219.1
18.50469.9
2.50063.50
6.380162.0
8.630219.2
11.75298.4
10.62269.7
121.50038.10
15.50393.7
81.3
10 10.75273.0
21.50546.1
2.75069.85
7.250184.1
10.75273.0
14.50368.3
12.75323.8
161.50038.10
18.50469.9
119
12 12.75323.8
24.00609.6
3.12079.25
7.880200.1
12.75323.8
16.50419.1
15.00381.0
201.50038.10
21.00533.4
157
14 14.00355.6
25.25641.3
3.38085.80
8.380212.8
14.00355.6
17.75450.8
16.25412.7
201.62041.10
22.00558.8
180
16 16.00406.4
27.75704.8
3.50088.90
8.500215.9
16.00406.4
20.00508.0
18.50469.9
201.75044.40
24.25615.9
217
18 18.00457.2
31.00787.4
4.000101.6
9.000228.6
18.00457.2
22.25565.1
21.00533.4
202.00050.80
27.00685.8
292
20 20.00508.0
33.75857.2
4.250107.9
9.750247.6
20.00508.0
24.50622.3
23.00584.2
202.12053.80
29.50749.3
362
24 24.00609.6
41.001041.4
5.500139.7
11.50292.1
24.00609.6
29.50749.3
27.25692.1
202.62066.55
35.50901.7
665
-
Flanges
8-43
Threaded Flanges - ANSI B16.5
Notes- The thread conforms to ASME B1.20.1 NTP threads as
described in Section 10. (The only exceptions are small male
and
female plain face threaded flanges which use NPSL locknut
threads.)- Class 300 and higher threaded flanges are counter-bored.
Threads are chamfered to the counterbore at an angle of 45°
(approx).
- Weights are based on manufacturer’s data and are approximate.-
For tolerances see page 8-4.
Class 900 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
DiameterOverall
Counter-boremin
FlangeThickness
min
Overall Length
Threaded length
min
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.93023.60
0.88022.30
1.25031.70
0.88022.30
1.50038.10
1.38035.10
40.88022.30
3.25082.50
1.74
3/41.05026.70
5.120130.0
1.14029.00
1.00025.40
1.38035.00
1.00025.40
1.75044.40
1.69042.90
40.88022.30
3.50088.90
2.34
1 1.31533.40
5.880149.3
1.41035.80
1.12028.40
1.62041.10
1.12028.40
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.44
11/41.66042.20
6.250158.7
1.75044.40
1.12028.40
1.62041.10
1.19030.20
2.50063.50
2.50063.50
41.00025.40
4.380111.2
3.91
11/21.90048.30
7.000177.8
1.99050.50
1.25031.70
1.75044.50
1.25031.70
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.36
2 2.37560.30
8.500215.9
2.50063.50
1.50038.10
2.25057.15
1.50038.10
4.120104.6
3.62091.90
81.00025.40
6.500165.1
9.85
21/22.87573.00
9.620244.3
3.00076.20
1.62041.10
2.50063.50
1.88047.70
4.880123.9
4.120104.6
81.12028.40
7.500190.5
13.7
3 3.50088.90
9.500241.3
3.63092.20
1.50038.10
2.12053.80
1.62041.10
5.000127.0
5.000127.0
81.00025.40
7.500190.5
11.6
4 4.500114.3
11.50292.1
4.630117.6
1.75044.40
2.75069.85
1.88047.80
6.250158.7
6.190157.2
81.25031.70
9.250234.9
19.7
5 5.563141.3
13.75349.2
5.690144.5
2.00050.80
3.12079.25
2.12053.80
7.500190.5
7.310185.7
81.38035.00
11.00279.4
31.9
6 6.625168.3
15.00381.0
6.750171.4
2.19055.60
3.38085.80
2.25057.15
9.250234.9
8.500215.9
121.25031.70
12.50317.5
41.1
8 8.625219.1
18.50469.9
8.750222.2
2.50063.50
4.000101.6
2.50063.50
11.75298.4
10.62269.7
121.50038.10
15.50393.7
70.7
10 10.75273.0
21.50546.1
10.88276.3
2.75069.85
4.250107.9
2.81071.40
14.50368.3
12.75323.9
161.50038.10
18.50469.9
101
12 12.75323.8
24.00609.6
12.94328.7
3.12079.40
4.620117.3
3.00076.20
16.50419.1
15.00381.0
201.50038.10
21.00533.4
133
14 14.00355.6
25.25641.3
14.19360.4
3.38085.70
5.120130.0
3.25082.50
17.75450.8
16.25412.7
201.62041.10
22.00558.8
153
16 16.00406.4
27.75704.8
16.19411.2
3.50088.90
5.250133.3
3.38085.90
20.00508.0
18.50469.9
201.75044.40
24.25618.9
185
18 18.00457.2
31.00787.4
18.19462.0
4.000101.6
6.000152.4
3.50088.90
22.25565.1
21.00533.4
202.00050.80
27.00685.8
258
20 20.00508.0
33.75857.2
20.19512.8
4.250107.9
6.250158.7
3.62091.90
24.50622.3
23.00584.2
202.12053.80
29.50749.3
317
24 24.00609.6
41.001041.4
24.19614.4
5.500139.7
8.000203.2
4.000101.6
29.50749.3
27.25692.2
202.62066.55
35.50901.7
606
-
Slip On Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6.- For tolerances
see page 8-4.
Class 900 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Hub Diameter
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.88022.40
0.88022.40
1.25031.70
1.50038.10
1.38035.10
40.88022.40
3.25082.50
1.74
3/41.05026.70
5.120130.0
1.09027.70
1.00025.40
1.38035.00
1.75044.40
1.69042.90
40.88022.40
3.50088.90
2.34
1 1.31533.40
5.880149.3
1.36034.50
1.12028.40
1.62041.10
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.44
11/41.66042.20
6.250158.7
1.70043.20
1.12028.40
1.62041.10
2.50063.50
2.50063.50
41.00025.40
4.380111.2
3.91
11/21.90048.30
7.000177.8
1.95049.50
1.25031.70
1.75044.50
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.36
2 2.37560.30
8.500215.9
2.44062.00
1.50038.10
2.25057.15
4.120104.6
3.62091.90
81.00025.40
6.500165.1
9.85
21/22.87573.00
9.620244.3
2.94074.70
1.62041.10
2.50063.50
4.880123.9
4.120104.6
81.12028.40
7.500190.5
13.7
3 3.50088.90
9.500241.3
3.57090.70
1.50038.10
2.12053.80
5.000127.0
5.000127.0
81.00025.40
7.500190.5
11.6
4 4.500114.3
11.50292.1
4.570116.1
1.75044.40
2.75069.85
6.250158.7
6.190157.2
81.25031.70
9.250234.9
19.7
5 5.563141.3
13.75349.2
5.660143.8
2.00050.80
3.12079.25
7.500190.5
7.310185.7
81.38035.00
11.00279.4
31.9
6 6.625168.3
15.00381.0
6.720170.7
2.19055.60
3.38085.80
9.250234.9
8.500215.9
121.25031.70
12.50317.5
41.1
8 8.625219.1
18.50469.9
8.720221.5
2.50063.50
4.000101.6
11.75298.4
10.62269.7
121.50038.10
15.50393.7
70.7
10 10.75273.0
21.50546.1
10.88276.3
2.75069.85
4.250107.9
14.50368.3
12.75323.9
161.50038.10
18.50469.9
101
12 12.75323.8
24.00609.6
12.88327.1
3.12079.25
4.620117.3
16.50419.1
15.00381.0
201.50038.10
21.00533.4
133
14 14.00355.6
25.25641.3
14.14359.1
3.38085.80
5.120130.0
17.75450.8
16.25412.8
201.62041.10
22.00558.8
153
16 16.00406.4
27.75704.8
16.16410.5
3.50088.90
5.250133.3
20.00508.0
18.50469.9
201.75044.40
24.25615.9
185
18 18.00457.2
31.00787.4
18.18461.8
4.000101.6
6.000152.4
22.25565.1
21.00533.4
202.00050.80
27.00685.8
258
20 20.00508.0
33.75857.2
20.20513.1
4.250107.9
6.250158.7
24.50622.3
23.00584.2
202.12053.80
29.50749.3
317
24 24.00609.6
41.001041.4
24.25616.0
5.500139.7
8.000203.2
29.50749.3
27.25692.2
202.62066.55
35.50901.7
606
-
Lap Joint Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For tolerances see page 8-4.
Class 900 lb
Pipe Flange Data Lap Hub Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Lap Radius
Hub Diameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.90022.90
0.88022.30
1.25031.70
0.1203.000
1.50038.10
40.88022.30
3.25082.50
1.71
3/41.05026.70
5.120130.0
1.11028.20
1.00025.40
1.38035.00
0.1203.000
1.75044.40
40.88022.30
3.50088.90
2.30
1 1.31533.40
5.880149.3
1.38035.10
1.12028.40
1.62041.10
0.1203.000
2.06052.30
41.00025.40
4.000101.6
3.40
11/41.66042.20
6.250158.7
1.72043.70
1.12028.40
1.62041.10
0.1904.800
2.50063.50
41.00025.40
4.380111.2
3.85
11/21.90048.30
7.000177.8
1.97050.00
1.25031.70
1.75044.40
0.2506.400
2.75069.85
41.12028.40
4.880123.9
5.28
2 2.37560.30
8.500215.9
2.46062.50
1.50038.10
2.25057.15
0.3107.900
4.120104.6
81.00025.40
6.500165.1
9.78
21/22.87573.00
9.620244.3
2.97075.40
1.62041.10
2.50063.50
0.3107.900
4.880123.9
81.12028.40
7.500190.5
13.6
3 3.50088.90
9.500241.3
3.60091.40
1.50038.10
2.12053.80
0.3809.700
5.000127.0
81.00025.40
7.500190.5
11.3
4 4.500114.3
11.50292.1
4.600116.8
1.75044.40
2.75069.85
0.44011.20
6.250158.7
81.25031.70
9.250234.9
19.2
5 5.563141.3
13.75349.2
5.690114.5
2.00050.80
3.12079.25
0.44011.20
7.500190.5
81.38035.00
11.00279.4
31.20
6 6.625168.3
15.00381.0
6.750171.5
2.19055.60
3.38085.80
0.50012.70
9.250234.9
121.25031.70
12.50317.5
40.50
8 8.625219.1
18.50469.9
8.750222.3
2.50063.50
4.500114.3
0.50012.70
11.75298.4
121.50038.10
15.50393.7
71.5
10 10.75273.0
21.50546.1
10.92277.4
2.75069.85
5.000127.0
0.50012.70
14.50368.3
161.50038.10
18.50469.9
104
12 12.75323.8
24.00609.6
12.92328.2
3.12079.25
5.620142.7
0.50012.70
16.50419.1
201.50038.10
21.00533.4
139
14 14.00355.6
25.25641.3
14.18360.2
3.38085.80
6.120155.4
0.50012.70
17.75450.8
201.62041.10
22.00558.8
161
16 16.00406.4
27.75704.8
16.19411.2
3.50088.90
6.500165.1
0.50012.70
20.00508.0
201.75044.40
24.25615.9
194
18 18.00457.2
31.00787.4
18.20462.3
4.000101.6
7.500190.5
0.50012.70
22.25565.1
202.00050.80
27.00685.8
267
20 20.00508.0
33.75857.2
20.25514.4
4.250107.9
8.250209.5
0.50012.70
24.50622.3
202.12053.80
29.50749.3
334
24 24.00609.6
41.001041.4
24.25616.0
50.50139.7
10.50266.7
0.50012.70
29.50749.3
202.62066.55
35.50901.7
618
-
Flanges
8-27
Blind Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6. - For tolerances
see page 8-4.
Class 900 lb
Pipe Flange Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
FlangeThickness
min
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holes kg/piecein
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
4.750120.6
0.88022.30
1.38035.10
40.88022.30
3.25082.50
1.77
3/41.05026.70
5.120130.0
1.00025.40
1.69042.90
40.88022.30
3.50088.90
2.42
1 1.31533.40
5.880149.3
1.12028.40
2.00050.80
41.00025.40
4.000101.6
3.57
11/41.66042.20
6.250158.7
1.12028.40
2.50063.50
41.00025.40
4.380111.2
4.15
11/21.90048.30
7.000177.8
1.25031.70
2.88073.15
41.12028.40
4.880123.9
5.75
2 2.37560.30
8.500215.9
1.50038.10
3.62091.90
81.00025.40
6.500165.1
10.1
21/22.87573.00
9.620244.3
1.62041.10
4.120104.6
81.12028.40
7.500190.5
14.0
3 3.50088.90
9.500241.3
1.50038.10
5.000127.0
81.00025.40
7.500190.5
13.1
4 4.500114.3
11.50292.1
1.75044.50
6.190157.2
81.25031.70
9.250234.9
26.9
5 5.563141.3
13.75349.2
2.00050.80
7.310185.7
81.38035.00
11.00279.4
36.5
6 6.625168.3
15.00381.0
2.19055.60
8.500215.9
121.25031.70
12.50317.0
47.40
8 8.625219.1
18.50469.9
2.50063.50
10.62269.7
121.50038.10
15.50393.7
82.5
10 10.75273.0
21.50546.1
2.75069.85
12.75323.9
161.50038.10
18.50469.9
122
12 12.75323.8
24.00609.6
3.12079.25
15.00381.0
201.50038.10
21.00533.4
173
14 14.00355.6
25.25641.3
3.38085.80
16.25412.8
201.62041.10
22.00558.8
206
16 16.00406.4
27.75704.8
3.50088.90
18.50469.9
201.75044.40
24.25615.9
259
18 18.00457.2
31.00787.4
4.000101.6
21.00533.4
202.00050.80
27.00685.8
367
20 20.00508.0
33.75857.2
4.250107.9
23.00584.2
202.12053.80
29.50749.3
463
24 24.00609.6
41.001041.4
5.500139.7
27.25692.2
202.62066.55
35.50901.7
876
-
Flanges
8-13
Weld Neck Flanges - ANSI B16.5
Notes- Dimension B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness.- Weights are
based on manufacturer’s data and are approximate.- For ring joint
facings see page 8-6. For weld end bevel see page 8-5. - For
tolerances see page 8-4.
Class 600 lb
Pipe Flange Data Hub Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Diameterat Weld Bevel
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.30
To b
e s
pecifie
d b
yP
urc
ha
ser
0.56014.20
2.06052.30
0.84021.30
1.50038.10
1.38035.00
40.62015.70
2.62066.55
0.87
3/41.05026.70
4.620117.3
0.62015.70
2.25057.15
1.05026.70
1.88047.80
1.69042.90
40.75019.10
3.25082.60
1.45
1 1.31533.40
4.880124.0
0.69017.50
2.44062.00
1.32033.50
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.76
11/41.66042.20
5.250133.4
0.81020.60
2.62066.55
1.66042.20
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.49
11/21.90048.30
6.120155.4
0.88022.40
2.75069.85
1.90048.30
2.75069.85
2.88073.15
40.88022.40
4.500114.3
3.49
2 2.37560.30
6.500165.1
1.00025.40
2.88073.15
2.38060.45
3.31084.10
3.62091.90
80.75019.10
5.000127.0
4.36
21/22.87573.00
7.500190.5
1.12028.40
3.12079.25
2.88073.15
3.940100.1
4.120104.6
80.88022.40
5.880149.4
6.43
3 3.50088.90
8.250209.6
1.25031.75
3.25082.60
3.50088.90
4.620117.3
5.000127.0
80.88022.40
6.620168.1
8.53
31/24.000101.6
9.000228.6
1.38035.10
3.38085.90
4.000101.6
5.250133.4
5.500139.7
81.00025.40
7.250184.2
10.7
4 4.500114.3
10.75273.1
1.50038.10
4.000101.6
4.500114.3
6.000152.4
6.190157.2
81.00025.40
8.500215.9
17.4
5 5.563141.3
13.00330.2
1.75044.50
4.500114.3
5.560141.2
7.440189.0
7.310185.7
81.12028.40
10.50266.7
29.2
6 6.625168.3
14.00355.6
1.88047.80
4.620117.3
6.630168.4
8.750222.3
8.500215.9
121.12028.40
11.50292.1
34.9
8 8.625219.1
16.50419.1
2.19055.60
5.250133.4
8.630219.2
10.75273.1
10.62269.7
121.25031.75
13.75349.3
53.9
10 10.75273.0
20.00508.0
2.50063.50
6.000152.4
10.75273.0
13.50342.9
12.75323.8
161.38035.10
17.00431.8
86.5
12 12.75323.8
22.00558.8
2.62066.55
6.120155.4
12.75323.8
15.75400.1
15.00381.0
201.38035.10
19.25489.0
103
14 14.00355.6
23.75603.3
2.75069.85
6.500165.1
14.00355.6
17.00431.8
16.25412.7
201.50038.10
20.75527.1
122
16 16.00406.4
27.00685.8
3.00076.20
7.000177.8
16.00406.4
19.50495.3
18.50469.9
201.62041.10
23.75603.3
170
18 18.00457.2
29.25743.0
3.25082.60
7.250184.2
18.00457.2
21.50546.1
21.00533.4
201.75044.50
25.75654.1
204
20 20.00508.0
32.00812.8
3.50088.90
7.500190.5
20.00508.0
24.00609.6
23.00584.2
241.75044.50
28.50723.9
254
24 24.00609.6
37.00939.8
4.000101.6
8.000203.2
24.00609.6
28.25717.6
27.25692.1
242.00050.80
33.00838.2
358
-
8-42
Threaded Flanges - ANSI B16.5
Notes- The thread conforms to ASME B1.20.1 NTP threads as
described in Section 10. (The only exceptions are small male
and
female plain face threaded flanges which use NPSL locknut
threads.)- Class 300 and higher threaded flanges are counter-bored.
Threads are chamfered to the counterbore at an angle of 45°
(approx).
- Weights are based on manufacturer’s data and are approximate.-
For tolerances see page 8-4.
Class 600 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
Counter-boremin
FlangeThickness
min
Overall Length
Threaded length
min
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.20
0.93023.60
0.56014.20
0.88022.40
0.62015.70
1.50038.10
1.38035.10
40.62015.70
2.62066.55
0.74
3/41.05026.70
4.620117.3
1.14029.00
0.62015.70
1.00025.40
0.62015.70
1.88047.80
1.69042.90
40.75019.10
3.25082.60
1.27
1 1.31533.40
4.880124.0
1.41035.80
0.69017.50
1.06026.90
0.69017.50
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.52
11/41.66042.20
5.250133.4
1.75044.50
0.81020.60
1.12028.40
0.81020.60
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.03
11/21.90048.30
6.120155.4
1.99050.50
0.88022.40
1.25031.75
0.88022.40
2.75069.85
2.88073.15
40.88022.40
4.500114.3
2.96
2 2.37560.30
6.500165.1
2.50063.50
1.00025.40
1.44036.60
1.12028.40
3.31084.10
3.62091.90
80.75019.10
5.000127.0
3.62
21/22.87573.00
7.500190.5
3.00076.20
1.12028.40
1.62041.10
1.25031.75
3.940100.1
4.120104.6
80.88022.40
5.880149.4
5.28
3 3.50088.90
8.250209.6
3.63092.20
1.25031.75
1.81046.00
1.38035.10
4.620117.3
5.000127.0
80.88022.40
6.620168.1
7.00
31/24.000101.6
9.000228.6
4.130104.9
1.38035.10
1.94049.30
1.56039.60
5.250133.4
5.500139.7
81.00025.40
7.250184.2
8.84
4 4.500114.3
10.75273.1
4.630117.6
1.50038.10
2.12053.80
1.62041.10
6.000152.4
6.190157.2
81.00025.40
8.500215.9
14.5
5 5.563141.3
13.00330.2
5.690144.5
1.75044.50
2.38060.45
1.88047.80
7.440189.0
7.310185.7
81.12028.40
10.50266.7
24.4
6 6.625168.3
14.00355.6
6.750171.5
1.88047.80
2.62066.55
2.00050.80
8.750222.3
8.500215.9
121.12028.40
11.50292.1
28.7
8 8.625219.1
16.50419.1
8.750222.3
2.19055.60
3.00076.20
2.25057.15
10.75273.1
10.62269.7
121.25031.75
13.75349.3
43.4
10 10.75273.0
20.00508.0
10.88276.4
2.50063.50
3.38085.90
2.56065.00
13.50342.9
12.75323.9
161.38035.10
17.00431.8
70.3
12 12.75323.8
22.00558.8
12.94328.7
2.62066.55
3.62091.90
2.75069.85
15.75400.1
15.00381.0
201.38035.10
19.25489.0
84.2
14 14.00355.6
23.75603.3
14.19360.4
2.75069.85
3.69093.70
2.88073.15
17.00431.8
16.25412.8
201.50038.10
20.75527.1
98.7
16 16.00406.4
27.00685.8
16.19411.2
3.00076.20
4.190106.4
3.06077.70
19.50495.3
18.50469.9
201.62041.10
23.75603.3
142
18 18.00457.2
29.25743.0
18.19462.0
3.25082.60
4.620117.3
3.12079.25
21.50546.1
21.00533.4
201.75044.50
25.75654.1
173
20 20.00508.0
32.00812.8
20.19512.8
3.50088.90
5.000127.0
3.25082.60
24.00609.6
23.00584.2
241.75044.50
28.50723.9
220
24 24.00609.6
37.00939.8
24.19614.4
4.000101.6
5.500139.7
3.62091.90
28.25717.6
27.25692.2
242.00050.80
33.00838.2
312
-
Flanges
8-31
Socket Welding Flanges - ANSI B16.5
Notes- Class 400 socket weld flanges may be provided in NPS 1/2
to 21/2 using Class 600 dimensions- Dimension B corresponds to the
pipe inside diameter. Values quoted assume 40S/Standard wall
thickness.- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6. For tolerances
see page 8-4.
Class 600 lb
Pipe Flange Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
OverallDiameter
InsideDiameter
FlangeThickness
min
OverallLength
SocketDiameter
Depthof
Socket
HubDiameter
FaceDiameter No.
ofHoles
BoltHole
Diameter
Diameterof Circleof Holes kg/
pieceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
1/20.84021.30
3.75095.20
To b
e s
pecifie
d b
yth
e P
urc
hase
r
0.56014.20
0.88022.30
0.88022.40
0.3809.600
1.50038.10
1.38035.10
40.62015.70
2.62066.55
0.76
3/41.05026.70
4.620117.3
0.62015.70
1.00025.40
1.09027.70
0.44011.10
1.88047.70
1.69042.90
40.75019.10
3.25082.50
1.29
1 1.31533.40
4.880123.9
0.69017.50
1.06026.90
1.36034.50
0.50012.70
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.55
11/41.66042.20
5.250133.3
0.81020.60
1.12028.40
1.70043.20
0.56014.20
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.06
11/21.90048.30
6.120155.4
0.88022.30
1.25031.75
1.95049.50
0.62015.70
2.75069.85
2.88073.15
40.88022.30
4.500114.3
3.00
2 2.37560.30
6.500165.1
1.00025.40
1.44036.60
2.44062.00
0.69017.50
3.31084.00
3.62091.90
80.75019.10
5.000127.0
3.67
21/22.87573.00
7.500190.5
1.12028.40
1.62041.10
2.94074.70
0.75019.00
3.940100.0
4.120104.6
80.88022.30
5.880149.3
5.35
3 3.50088.90
8.250209.5
1.25031.75
1.81046.00
3.57090.70
0.81020.60
4.620117.3
5.000127.0
80.88022.30
6.620168.1
7.06
Class 1500 lb
Pipe Flange Hub Raised Face Drilling Data Weight
Nom
ina
lP
ipe
Siz
e
OutsideDiameter
OverallDiameter
Inside Diameter
FlangeThickness
min
OverallLength
SocketDiameter
Depthof
Socket
HubDiameter
FaceDiameter No.
ofHoles
BoltHole
Diameter
Diameterof Circleof Holes kg/
pieceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
1/20.84021.30
4.750120.6
To
be s
pe
cifie
d b
yth
e P
urc
haser
0.88022.30
1.25031.70
0.88022.40
0.3809.600
1.50038.10
1.38035.10
40.88022.30
3.25082.50
1.80
3/41.05026.70
5.120130.0
1.00025.40
1.38035.00
1.09027.70
0.44011.10
1.75044.40
1.69042.90
40.88022.30
3.50088.90
2.41
1 1.31533.40
5.880149.3
1.12028.40
1.62041.10
1.36034.50
0.50012.70
2.06052.30
2.00050.80
41.00025.40
4.000101.6
3.55
11/41.66042.20
6.250158.7
1.12028.40
1.62041.10
1.70043.20
0.56014.20
2.50063.50
2.50063.50
41.00025.40
4.380111.2
4.02
11/21.90048.30
7.000177.8
1.25031.75
1.75044.50
1.95049.50
0.62015.70
2.75069.85
2.88073.15
41.12028.40
4.880123.9
5.45
2 2.37560.30
8.500215.9
1.50038.10
2.25057.15
2.44062.00
0.69017.50
4.120104.6
3.62091.90
81.00025.40
6.500165.1
10.2
21/22.87573.00
9.620244.3
1.62041.10
2.50063.50
2.94074.70
0.75019.00
4.880123.9
4.120104.6
81.12028.40
7.500190.5
13.9
-
8-20
Slip On Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6.- For tolerances
see page 8-4.
Class 600 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Hub Diameter
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.30
0.88022.40
0.56014.20
0.88022.40
1.50038.10
1.38035.10
40.62015.70
2.62066.55
0.74
3/41.05026.70
4.620117.3
1.09027.70
0.62015.70
1.00025.40
1.88047.80
1.69042.90
40.75019.10
3.25082.60
1.27
1 1.31533.40
4.880124.0
1.36034.50
0.69017.50
1.06026.90
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.52
11/41.66042.20
5.250133.4
1.70043.20
0.81020.60
1.12028.40
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.03
11/21.90048.30
6.120155.4
1.95049.50
0.88022.40
1.25031.75
2.75069.85
2.88073.15
40.88022.40
4.500114.3
2.96
2 2.37560.30
6.500165.1
2.44062.00
1.00025.40
1.44036.60
3.31084.10
3.62091.90
80.75019.10
5.000127.0
3.62
21/22.87573.00
7.500190.5
2.94074.70
1.12028.40
1.62041.10
3.940100.1
4.120104.6
80.88022.40
5.880149.4
5.28
3 3.50088.90
8.250209.6
3.57090.70
1.25031.75
1.81046.00
4.620117.3
5.000127.0
80.88022.40
6.620168.1
7.00
31/24.000101.6
9.000228.6
4.070103.4
1.38035.10
1.94049.30
5.250133.4
5.500139.7
81.00025.40
7.250184.2
8.84
4 4.500114.3
10.75273.1
4.570116.1
1.50038.10
2.12053.80
6.000152.4
6.190157.2
81.00025.40
8.500215.9
14.5
5 5.563141.3
13.00330.2
5.660143.8
1.75044.50
2.38060.45
7.440189.0
7.310185.7
81.12028.40
10.50266.7
24.4
6 6.625168.3
14.00355.6
6.720170.7
1.88047.80
2.62066.55
8.750222.3
8.500215.9
121.12028.40
11.50292.1
28.7
8 8.625219.1
16.50419.1
8.720221.5
2.19055.60
3.00076.20
10.75273.1
10.62269.7
121.25031.75
13.75349.3
43.4
10 10.75273.0
20.00508.0
10.88276.3
2.50063.50
3.38085.90
13.50342.9
12.75323.9
161.38035.10
17.00431.8
70.3
12 12.75323.8
22.00558.8
12.88327.1
2.62066.55
3.62091.90
15.75400.1
15.00381.0
201.38035.10
19.25489.0
84.2
14 14.00355.6
23.75603.3
14.14359.1
2.75069.85
3.69093.70
17.00431.8
16.25412.8
201.50038.10
20.75527.1
98.7
16 16.00406.4
27.00685.8
16.16410.5
3.00076.20
4.190106.4
19.50495.3
18.50469.9
201.62041.10
23.75603.3
142
18 18.00457.2
29.25743.0
18.18461.8
3.25082.60
4.620117.3
21.50546.1
21.00533.4
201.75044.50
25.75654.1
173
20 20.00508.0
32.00812.8
20.20513.1
3.50088.90
5.000127.0
24.00609.6
23.00584.2
241.75044.50
28.50723.9
220
24 24.00609.6
37.00939.8
24.25616.0
4.000101.6
5.500139.7
28.25717.6
27.25692.2
242.00050.80
33.00838.2
312
-
Flanges
8-35
Lap Joint Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For tolerances see page 8-4.
Class 600 lb
Pipe Flange Data Lap Hub Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
LapRadius
Hub Diameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of
Holeskg/
pieceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
1/20.84021.30
3.75095.30
0.90022.90
0.56014.20
0.88022.40
0.1203.000
1.50038.10
40.62015.70
2.62066.55
0.72
3/41.05026.70
4.620117.3
1.11028.20
0.62015.70
1.00025.40
0.1203.000
1.88047.80
40.75019.10
3.25082.60
1.25
1 1.31533.40
4.880124.0
1.38035.10
0.69017.50
1.06026.90
0.1203.000
2.12053.80
40.75019.10
3.50088.90
1.50
11/41.66042.20
5.250133.4
1.72043.70
0.81020.60
1.12028.40
0.1904.800
2.50063.50
40.75019.10
3.88098.60
2.00
11/21.90048.30
6.120155.4
1.97050.00
0.88022.40
1.25031.75
0.2506.400
2.75069.85
40.88022.40
4.500114.3
2.92
2 2.37560.30
6.500165.1
2.46062.50
1.00025.40
1.44036.60
0.3107.900
3.31084.10
80.75019.10
5.000127.0
3.55
21/22.87573.00
7.500190.5
2.97075.40
1.12028.40
1.62041.10
0.3107.900
3.940100.1
80.88022.40
5.880149.4
5.23
3 3.50088.90
8.250209.6
3.60091.40
1.12531.75
1.81046.00
0.3809.700
4.620117.3
80.88022.40
6.620168.1
6.95
31/24.000101.6
9.000228.6
4.100104.1
1.38035.10
1.94049.30
0.3809.700
5.250133.4
81.00025.40
7.250184.2
8.78
4 4.500114.3
10.75273.1
4.600116.8
1.50038.10
2.12053.80
0.44011.20
6.000152.4
81.00025.40
8.500215.9
14.4
5 5.563141.3
13.00330.2
5.690114.5
1.75044.50
2.38060.45
0.44011.20
7.440189.0
81.12028.40
10.50266.7
24.3
6 6.625168.3
14.00355.6
6.750171.5
1.88047.80
2.62066.55
0.50012.70
8.750222.3
121.12028.40
11.50292.1
28.5
8 8.625219.1
16.50419.1
8.750222.3
2.19055.60
3.00076.20
0.50012.70
10.75273.1
121.25031.75
13.75349.3
43.1
10 10.75273.0
20.00508.0
10.92277.4
2.50063.50
4.380111.3
0.50012.70
13.50342.9
161.38035.10
17.00431.8
70.5
12 12.75323.8
22.00558.8
12.92328.2
2.62066.55
4.620117.3
0.50012.70
15.75400.1
201.38035.10
19.25489.0
86.1
14 14.00355.6
23.75603.3
14.18360.2
2.75069.85
5.000127.0
0.50012.70
17.00431.8
201.50038.10
20.75527.1
100
16 16.00406.4
27.00685.8
16.19411.2
3.00076.20
5.500139.7
0.50012.70
19.50495.3
201.62041.10
23.75603.3
145
18 18.00457.2
29.25743.0
18.20462.3
3.25082.60
6.000152.4
0.50012.70
21.50546.1
201.75044.50
25.75654.1
177
20 20.00508.0
32.00812.8
20.25514.4
3.50088.90
6.500165.1
0.50012.70
24.00609.6
241.75044.50
28.50723.9
225
24 24.00609.6
37.00939.8
24.25616.0
4.000101.6
7.250184.2
0.50012.70
28.25717.6
242.00050.80
33.00838.2
318
-
8-26
Flanges
Blind Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6. - For tolerances
see page 8-4.
Class 600 lb
Pipe Flange Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
FlangeThickness
min
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holes kg/piecein
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.20
0.56014.20
1.38035.10
40.62015.70
2.62066.55
0.76
3/41.05026.70
4.620117.3
0.62015.70
1.69042.90
40.75019.10
3.25082.60
1.28
1 1.31533.40
4.880123.9
0.69017.50
2.00050.80
40.75019.10
3.50088.90
1.60
11/41.66042.20
5.250133.3
0.81020.60
2.50063.50
40.75019.10
3.88098.60
2.23
11/21.90048.30
6.120155.4
0.88022.30
2.88073.15
40.88022.40
4.500114.3
3.25
2 2.37560.30
6.500165.1
1.00025.40
3.62091.90
80.75019.10
5.000127.0
4.15
21/22.87573.00
7.500190.5
1.12028.40
4.120104.6
80.88022.40
5.880149.4
6.13
3 3.50088.90
8.250209.5
1.25031.70
5.000127.0
80.88022.40
6.620168.1
8.44
31/24.000101.6
9.000228.6
1.38035.00
5.500139.7
81.00025.40
7.250184.2
11.0
4 4.500114.3
10.75273.1
1.50038.10
6.190157.2
81.00025.40
8.500215.9
17.3
5 5.563141.3
13.00330.2
1.75044.50
7.310185.7
81.12028.40
10.50266.7
29.4
6 6.625168.3
14.00355.6
1.88047.80
8.500215.9
121.12028.40
11.50292.1
36.1
8 8.625219.1
16.50419.1
2.19055.60
10.62269.7
121.25031.75
13.75349.3
58.9
10 10.75273.0
20.00508.0
2.50063.50
12.75323.9
161.38035.10
17.00431.8
97.5
12 12.75323.8
22.00558.8
2.62066.55
15.00381.0
201.38035.10
19.25489.0
124
14 14.00355.6
23.75603.3
2.75069.85
16.25412.8
201.50038.10
20.75527.1
151
16 16.00406.4
27.00685.8
3.00076.20
18.50469.9
201.62041.10
23.75603.3
214
18 18.00457.2
29.25743.0
3.25082.60
21.00533.4
201.75044.50
25.75654.1
272
20 20.00508.0
32.00812.8
3.50088.90
23.00584.2
241.75044.50
28.50723.9
349
24 24.00609.6
37.00939.8
4.000101.6
27.25692.2
242.00050.80
33.00838.2
533
-
Weld Neck Flanges - ANSI B16.5
Notes- Dimension B corresponds to the pipe inside diameter.
Values quoted assume 40S/Standard wall thickness.- Weights are
based on manufacturer’s data and are approximate.- For ring joint
facings see page 8-6. For weld end bevel see page 8-5. - For
tolerances see page 8-4.
Class 400 lb
Pipe Flange Data Hub Data Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Diameterat Weld Bevel
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.30
To b
e s
pecifie
d b
yP
urc
ha
ser
0.56014.20
2.06052.30
0.84021.30
1.50038.10
1.38035.00
40.62015.70
2.62066.55
0.87
3/41.05026.70
4.620117.3
0.62015.70
2.25057.15
1.05026.70
1.88047.80
1.69042.90
40.75019.10
3.25082.60
1.45
1 1.31533.40
4.880124.0
0.69017.50
2.44062.00
1.32033.50
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.76
11/41.66042.20
5.250133.4
0.81020.60
2.62066.55
1.66042.20
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.49
11/21.90048.30
6.120155.4
0.88022.40
2.75069.85
1.90048.30
2.75069.85
2.88073.15
40.88022.40
4.500114.3
3.49
2 2.37560.30
6.500165.1
1.00025.40
2.88073.15
2.38060.45
3.31084.10
3.62091.90
80.75019.10
5.000127.0
4.36
21/22.87573.00
7.500190.5
1.12028.40
3.12079.25
2.88073.15
3.940100.1
4.120104.6
80.88022.40
5.880149.4
6.43
3 3.50088.90
8.250209.6
1.25031.75
3.25082.60
3.50088.90
4.620117.3
5.000127.0
80.88022.40
6.620168.1
8.53
31/24.000101.6
9.000228.6
1.38035.10
3.38085.90
4.000101.6
5.250133.4
5.500139.7
81.00025.40
7.250184.2
10.7
4 4.500114.3
10.00254.0
1.38035.10
3.50088.90
4.500114.3
5.750146.1
6.190157.2
81.00025.40
7.880200.2
12.8
5 5.563141.3
11.00279.4
1.50038.10
4.000101.6
5.560141.2
7.000177.8
7.310185.7
81.00025.40
9.250235.0
16.9
6 6.625168.3
12.50317.5
1.62041.10
4.060103.1
6.630168.4
8.120206.2
8.500215.9
121.00025.40
10.62269.7
22.0
8 8.625219.1
15.00381.0
1.88047.80
4.620117.3
8.630219.2
10.25260.4
10.62269.7
121.12028.40
13.00330.2
34.7
10 10.75273.0
17.50444.5
2.12053.80
4.880124.0
10.75273.0
12.62320.5
12.75323.8
161.25031.75
15.25387.4
48.5
12 12.75323.8
20.50520.7
2.25057.15
5.380136.7
12.75323.8
14.75374.7
15.00381.0
161.38035.10
17.75450.9
69.6
14 14.00355.6
23.00584.2
2.38060.45
5.880149.4
14.00355.6
16.75425.5
16.25412.7
201.38035.10
20.25514.4
95.5
16 16.00406.4
25.50647.7
2.50063.50
6.000152.4
16.00406.4
19.00482.6
18.50469.9
201.50038.10
22.50571.5
118
18 18.00457.2
28.00711.2
2.62066.55
6.500165.1
18.00457.2
21.00533.4
21.00533.4
241.50038.10
24.75628.7
145
20 20.00508.0
30.50774.7
2.75069.85
6.620168.1
20.00508.0
23.12587.2
23.00584.2
241.62041.10
27.00685.8
173
24 24.00609.6
36.00914.4
3.00076.20
6.880174.8
24.00609.6
27.62701.5
27.25692.1
241.88047.80
32.00812.8
249
-
Flanges
8-41
Threaded Flanges - ANSI B16.5
Notes- The thread conforms to ASME B1.20.1 NTP threads as
described in Section 10. (The only exceptions are small male
and
female plain face threaded flanges which use NPSL locknut
threads.)- Class 300 and higher threaded flanges are counter-bored.
Threads are chamfered to the counterbore at an angle of 45°
(approx).
- Weights are based on manufacturer’s data and are approximate.-
For tolerances see page 8-4.
Class 400 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
OutsideDiameter
OverallDiameter
Counter-boremin
FlangeThickness
min
Overall Length
Threaded length
min
Hub Diameter
FaceDiameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.30
0.93023.60
0.56014.20
0.88022.40
0.62015.70
1.50038.10
1.38035.10
40.62015.70
2.62066.55
0.74
3/41.05026.70
4.620117.3
1.14029.00
0.62015.70
1.00025.40
0.62015.70
1.88047.80
1.69042.90
40.75019.10
3.25082.60
1.27
1 1.31533.40
4.880124.0
1.41035.80
0.69017.50
1.06026.90
0.69017.50
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.52
11/41.66042.20
5.250133.4
1.75044.50
0.81020.60
1.12028.40
0.81020.60
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.03
11/21.90048.30
6.120155.4
1.99050.50
0.88022.40
1.25031.75
0.88022.40
2.75069.85
2.88073.15
40.88022.40
4.500114.3
2.96
2 2.37560.30
6.500165.1
2.50063.50
1.00025.40
1.44036.60
1.12028.40
3.31084.10
3.62091.90
80.75019.10
5.000127.0
3.62
21/22.87573.00
7.500190.5
3.00076.20
1.12028.40
1.62041.10
1.25031.75
3.940100.1
4.120104.6
80.88022.40
5.880149.4
5.28
3 3.50088.90
8.250209.6
3.63092.20
1.25031.75
1.81046.00
1.38035.10
4.620117.3
5.000127.0
80.88022.40
6.620168.1
7.00
31/24.000101.6
9.000228.6
413.0104.9
1.38035.10
1.94049.30
1.56039.60
5.250133.4
5.500139.7
81.00025.40
7.250184.2
8.84
4 4.500114.3
10.00254.0
4.630117.6
1.38035.10
2.00050.80
1.44036.60
5.750146.1
6.190157.2
81.00025.40
7.880200.2
11.1
5 5.563141.3
11.00279.4
5.690144.5
1.50038.10
2.12053.80
1.69042.90
7.000177.8
7.310185.7
81.00025.40
9.250235.0
13.9
6 6.625168.3
12.50317.5
6.750171.5
1.62041.10
2.25057.15
1.81046.00
8.120206.2
8.500215.9
121.00025.40
10.62269.7
18.3
8 8.625219.1
15.00381.0
8.750222.3
1.88047.80
2.69068.30
2.00050.80
10.25260.4
10.62269.7
121.12028.40
13.00330.2
28.6
10 10.75273.0
17.50444.5
10.88276.4
2.12053.80
2.88073.15
2.19055.60
12.62320.5
12.75323.9
161.25031.75
15.25387.4
39.2
12 12.75323.8
20.50520.7
12.94328.7
2.25057.15
3.12079.25
2.38060.45
14.75374.7
15.00381.0
161.38035.10
17.75450.9
57.0
14 14.00355.6
23.00584.2
14.19360.4
2.38060.45
3.31084.10
2.50063.50
16.75425.5
16.25412.8
201.38035.10
20.25514.4
79.1
16 16.00406.4
25.50647.7
16.19411.2
2.50063.50
3.69093.70
2.69068.30
19.00482.6
18.50469.9
201.50038.10
22.50571.5
101
18 18.00457.2
28.00711.2
18.19462.0
2.62066.55
3.88098.60
2.75069.85
21.00533.4
21.00533.4
241.50038.10
24.75628.7
123
20 20.00508.0
30.50774.7
20.19512.8
2.75069.85
4.000101.6
2.88073.15
23.12587.2
23.00584.2
241.62041.10
27.00685.8
146
24 24.00609.6
36.00914.4
24.19614.4
3.00076.20
4.500114.3
3.25082.60
27.62701.5
27.25692.2
241.88047.80
32.00812.8
219
-
Flanges
8-19
Slip On Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For ring joint facings see page 8-6.- For tolerances
see page 8-4.
Class 400 lb
Pipe Flange Data Hub Raised Face Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
Hub Diameter
FaceDiameter Number of
Holes
Bolt Hole Diameter
Diameterof Circle of
Holeskg/
pieceinmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
inmm
1/20.84021.30
3.75095.30
0.88022.40
0.56014.20
0.88022.40
1.50038.10
1.38035.10
40.62015.70
2.62066.55
0.74
3/41.05026.70
4.620117.3
1.09027.70
0.62015.70
1.00025.40
1.88047.70
1.69042.90
40.75019.10
3.25082.50
1.27
1 1.31533.40
4.880124.0
1.36034.50
0.69017.50
1.06026.90
2.12053.80
2.00050.80
40.75019.10
3.50088.90
1.52
11/41.66042.20
5.250133.4
1.70043.20
0.81020.60
1.12028.40
2.50063.50
2.50063.50
40.75019.10
3.88098.60
2.03
11/21.90048.30
6.120155.4
1.95049.50
0.88022.40
1.25031.75
2.75069.85
2.88073.15
40.88022.40
4.500114.3
2.96
2 2.37560.30
6.500165.1
2.44062.00
1.00025.40
1.44036.60
3.31084.00
3.62091.90
80.75019.10
5.000127.0
3.62
21/22.87573.00
7.500190.5
2.94074.70
1.12028.40
1.62041.10
3.940100.0
4.120104.6
80.88022.40
5.880149.4
5.28
3 3.50088.90
8.250209.6
3.57090.70
1.25031.75
1.81046.00
4.620117.3
5.000127.0
80.88022.40
6.620168.1
7.00
31/24.000101.6
9.000228.6
4.070103.4
1.38035.10
1.94049.30
5.250133.3
5.500139.7
81.00025.40
7.250184.2
8.84
4 4.500114.3
10.00254.0
4.570116.1
1.38035.10
2.00050.80
5.750146.0
6.190157.2
81.00025.40
7.880200.1
11.1
5 5.563141.3
11.00279.4
5.660143.8
1.50038.10
2.12053.80
7.000177.8
7.310185.7
81.00025.40
9.250234.9
13.9
6 6.625168.3
12.50317.5
6.720170.7
1.62041.10
2.25057.15
8.120206.2
8.500215.9
121.00025.40
10.62269.7
18.3
8 8.625219.1
15.00381.0
8.720221.5
1.88047.80
2.69068.30
10.25260.3
10.62269.7
121.12028.40
13.00330.2
28.6
10 10.75273.0
17.50444.5
10.88276.3
2.12053.80
2.88073.15
12.62320.5
12.75323.9
161.25031.75
15.25387.3
39.2
12 12.75323.8
20.50520.7
12.88327.1
2.25057.15
3.12079.25
14.75374.6
15.00381.0
161.38035.10
17.75450.8
57.0
14 14.00355.6
23.00584.2
14.14359.1
2.38060.05
3.31084.10
16.75425.4
16.25412.8
201.38035.10
20.25514.4
79.1
16 16.00406.4
25.50647.7
16.16410.5
2.50063.50
3.69093.70
19.00482.6
18.50469.9
201.50038.10
22.50571.5
101
18 18.00457.2
28.00711.2
18.18461.8
2.62066.55
3.88098.60
21.00533.4
21.00533.4
241.50038.10
24.75628.7
123
20 20.00508.0
30.50774.7
20.20513.1
2.75069.85
4.000101.6
23.12587.2
23.00584.2
241.62041.10
27.00685.8
146
24 24.00609.6
36.00914.4
24.25616.0
3.00076.20
4.500114.3
27.62701.5
27.25692.2
241.88047.80
32.00812.8
219
-
8-34
Flanges
Lap Joint Flanges - ANSI B16.5
Notes- Weights are based on manufacturer’s data and are
approximate.- For tolerances see page 8-4.
Class 400 lb
Pipe Flange Data Lap Hub Drilling Data Weight
No
min
al
Pip
e S
ize
Outside Diameter
OverallDiameter
InsideDiameter
FlangeThickness
min
Overall Length
LapRadius
Hub Diameter Number
of Holes
Bolt Hole Diameter
Diameterof Circle of Holes
kg/piecein
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mmin
mm
1/20.84021.30
3.75095.30
0.90022.90
0.56014.20
0.88022.40
0.1203.000
1.50038.10
40.62015.70
2.62066.55
0.72
3/41.05026.70
4.620117.3
1.11028.20
0.62015.70
1.00025.40
0.1203.000
1.88047.80
40.75019.10
3.25082.60
1.25
1 1.31533.40
4.880124.0
1.38035.10
0.69017.50
1.06026.90
0.1203.000
2.12053.80
40.75019.10
3.50088.90
1.50
11/41.66042.20
5.250133.4
1.72043.70
0.81020.60
1.12028.40
0.1904.800
2.50063.50
40.75019.10
3.88098.60
2.00
11/21.90048.30
6.120155.4
1.97050.00
0.88022.40
1.25031.75
0.2506.400
2.75069.85
40.88022.40
4.500114.3
2.92
2 2.37560.30
6.500165.1
2.46062.50
1.00025.40
1.44036.60
0.3107.900
3.31084.10
80.75019.10
5.000127.0
3.55
21/22.87573.00
7.500190.5
2.97075.40
1.12028.40
1.62041.10
0.3107.900
3.940100.1
80.88022.40
5.880149.4
5.23
3 3.50088.90
8.250209.6
3.60091.40
1.12531.75
1.81046.00
0.3809.700
4.620117.3
80.88022.40
6.620168.1
6.95
31/24.000101.6
9.000228.6
4.100104.1
1.38035.10
1.94049.30
0.3809.700
5.250133.4
81.00025.40
7.250184.2
8.78
4 4.500114.3
10.00254.0
4.600116.8
1.38035.10
2.00050.80
0.44011.20
5.750146.1
81.00025.40
7.880200.2
10.9
5 5.563141.3
11.00279.4
5.690114.5
1.50038.10
2.12053.80
0.44011.20
7.000177.8
81.00025.40
9.250235.0
13.7
6 6.625168.3
12.50317.5
6.750171.5
1.62041.10
2.25057.15
0.50012.70
8.120206.2
121.00025.40
10.62269.7
18.0
8 8.625219.1
15.00381.0
8.750222.3
1.88047.80
2.69068.30
0.50012.70
10.25260.4
121.12028.40
13.00330.2
28.3
10 10.75273.0
17.50444.5
10.92277.4
2.12053.80
4.000101.6
0.50012.70
12.62320.5
161.25031.75
15.25387.4
38.8
12 12.75323.8
20.50520.7
12.92328.2
2.25057.15
4.250108.0
0.50012.70
14.75374.7
161.38035.10
17.75450.9
56.6
14 14.00355.6
23.00584.2
14.18360.2
2.38060.45
4.620117.3
0.50012.70
16.75425.5
201.38035.10
20.25514.4
78.6
16 16.00406.4
25.50647.7
16.19411.2
2.50063.50
5.000127.0
0.50012.70
19.00482.6
201.50038.10
22.50571.5
100
18 18.00457.2
28.00711.2
18.20462.3
2.62066.55
5.380136.7
0.50012.70
21.00533.4
241.50038.10
24.75628.7
122
20 20.00508.0
30.50774.7
20.25514.4
2.75069.85
5.750146.1
0.50012.70
23.12587.2
241.62041.10
27.00685.8
145
24 24.00609.6
36.00914.4
24.25616.0
3.00076.20
6.250158.8
