Flanges Table
 
 

Table "D"
Nominal Bore
A
Approx. O/D of Steel pipe
B
Diameter of flange
C
Bolt circle diameter
No. of Bolts
D
Diameter of bolts
E
Hub length
T
Flanges Thickness
mm
in
mm
in
mm
in
mm
in
-
mm
in
mm
in
mm
in
15
1/2
21.4
.844
95.3
3.750
66.7
2.625
4
12.7
.500
9.5
.375
4.8
.187
20
3/4
27.0
1.062
101.6
4.000
73.0
2.875
4
12.7
.500
11.1
.437
4.8
.187
25
1
34.1
1.344
114.3
4.500
82.6
3.250
4
12.7
.500
11.1
.437
4.8
.187
32
1.1/4
42.9
1.688
120.6
4.750
87.3
3.437
4
12.7
.500
11.1
.437
6.3
.250
40
1.1/2
48.4
1.906
133.3
5.250
98.4
3.875
4
12.7
.500
12.7
.500
6.3
.250
50
2
60.3
2.375
152.4
6.000
114.3
4.500
4
15.9
.625
12.7
.500
7.9
.312
65
2.1/2
76.2
3.000
165.1
6.500
127.0
5.000
4
15.9
.625
15.9
.625
7.9
.312
80
3
88.9
3.500
184.1
7.250
146.0
5.750
4
15.9
.625
15.9
.625
9.5
.375
90
3.1/2
101.6
4.000
203.2
8.000
165.1
6.500
4
15.9
.625
17.5
.687
9.5
.375
100
4
114.3
4.500
215.9
8.500
177.8
7.000
4
15.9
.625
19.0
.750
9.5
.375
125
5
139.7
5.500
254.0
10.000
209.6
8.250
8
15.9
.625
19.0
.750
12.7
.500
150
6
165.1
6.500
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
12.7
.500
-
-
168.5
6.625
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
12.7
.500
175
7
193.7
7.625
304.8
12.000
260.3
10.250
8
15.9
.625
22.2
.875
12.7
.500
200
8
219.1
8.625
336.6
13.250
292.1
11.500
8
15.9
.625
22.2
.875
12.7
.500
225
9
244.5
9.625
368.2
14.500
323.9
12.750
8
15.9
.625
25.4
1.000
15.9
.625
250
10
273.1
10.750
406.2
16.000
355.6
14.000
8
19.0
.750
27.0
1.062
15.9
.625
300
12
323.9
12.750
457.2
18.000
406.4
16.000
12
19.0
.750
28.6
1.125
19.0
.750

Table "E"
Nominal Bore
A
Approx. O/D of Steel pipe
B
Diameter of flange
C
Bolt circle diameter
No. of Bolts
D
Diameter of bolts
E
Hub length
T
Flanges Thickness
mm
in
mm
in
mm
in
mm
in
-
mm
in
mm
in
mm
in
15
1/2
21.4
.844
95.3
3.750
66.7
2.625
4
12.7
.500
9.5
.375
6.3
.250
20
3/4
27.0
1.062
101.6
4.000
73.0
2.875
4
12.7
.500
11.1
.437
6.3
.250
25
1
34.1
1.344
114.3
4.500
82.6
3.250
4
12.7
.500
11.1
.437
7.1
.281
32
1.1/4
42.9
1.688
120.6
4.750
87.3
3.437
4
12.7
.500
11.1
.437
7.9
.312
40
1.1/2
48.4
1.906
133.3
5.250
98.4
3.875
4
12.7
.500
12.7
.500
8.7
.344
50
2
60.3
2.375
152.4
6.000
114.3
4.500
4
15.9
.625
12.7
.500
9.5
.375
65
2.1/2
76.2
3.000
165.1
6.500
127.0
5.000
4
15.9
.625
15.9
.625
10.3
.406
80
3
88.9
3.500
184.1
7.250
146.0
5.750
4
15.9
.625
15.9
.625
11.1
.437
90
3.1/2
101.6
4.000
203.2
8.000
165.1
6.500
4
15.9
.625
17.5
.687
11.9
.469
100
4
114.3
4.500
215.9
8.500
177.8
7.000
4
15.9
.625
19.0
.750
12.7
.500
125
5
139.7
5.500
254.0
10.000
209.6
8.250
8
15.9
.625
19.0
.750
14.3
.563
150
6
165.1
6.500
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
17.5
.688
-
-
168.5
6.625
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
17.5
.688
175
7
193.7
7.625
304.8
12.000
260.3
10.250
8
15.9
.625
22.2
.875
19.0
.750
200
8
219.1
8.625
336.6
13.250
292.1
11.500
8
15.9
.625
22.2
.875
19.0
.750
225
9
244.5
9.625
368.2
14.500
323.9
12.750
8
15.9
.625
25.4
1.000
20.6
.813
250
10
273.1
10.750
406.2
16.000
355.6
14.000
8
19.0
.750
27.0
1.062
22.2
.875
300
12
323.9
12.750
457.2
18.000
406.4
16.000
12
19.0
.750
28.6
1.125
25.4
1.000

Table "F"
Nominal Bore
A
Approx. O/D of Steel pipe
B
Diameter of flange
C
Bolt circle diameter
No. of Bolts
D
Diameter of bolts
E
Hub length
T
Flanges Thickness
mm
in
mm
in
mm
in
mm
in
-
mm
in
mm
in
mm
in
15
1/2
21.4
.844
95.3
3.750
66.7
2.625
4
12.7
.500
9.5
.375
9.5
.375
20
3/4
27.0
1.062
101.6
4.000
73.0
2.875
4
12.7
.500
11.1
.437
9.5
.375
25
1
34.1
1.344
114.3
4.500
82.6
3.250
4
12.7
.500
11.1
.437
9.5
.375
32
1.1/4
42.9
1.688
120.6
4.750
87.3
3.437
4
12.7
.500
11.1
.437
12.7
.500
40
1.1/2
48.4
1.906
133.3
5.250
98.4
3.875
4
12.7
.500
12.7
.500
12.7
.500
50
2
60.3
2.375
152.4
6.000
114.3
4.500
4
15.9
.625
12.7
.500
15.9
.625
65
2.1/2
76.2
3.000
165.1
6.500
127.0
5.000
4
15.9
.625
15.9
.625
15.9
.625
80
3
88.9
3.500
184.1
7.250
146.0
5.750
4
15.9
.625
15.9
.625
15.9
.625
90
3.1/2
101.6
4.000
203.2
8.000
165.1
6.500
4
15.9
.625
17.5
.687
19.0
.750
100
4
114.3
4.500
215.9
8.500
177.8
7.000
4
15.9
.625
19.0
.750
19.0
.750
125
5
139.7
5.500
254.0
10.000
209.6
8.250
8
15.9
.625
19.0
.750
22.2
.875
150
6
165.1
6.500
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
22.2
.875
-
-
168.5
6.625
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
22.2
.875
175
7
193.7
7.625
304.8
12.000
260.3
10.250
8
15.9
.625
22.2
.875
22.2
.875
200
8
219.1
8.625
336.6
13.250
292.1
11.500
8
15.9
.625
22.2
.875
25.4
1.000
225
9
244.5
9.625
368.2
14.500
323.9
12.750
8
15.9
.625
25.4
1.000
28.6
1.125
250
10
273.1
10.750
406.2
16.000
355.6
14.000
8
19.0
.750
27.0
1.062
28.6
1.125
300
12
323.9
12.750
457.2
18.000
406.4
16.000
12
19.0
.750
28.6
1.125
31.8
1.250

Table "H"
Nominal Bore
A
Approx. O/D of Steel pipe
B
Diameter of flange
C
Bolt circle diameter
No. of Bolts
D
Diameter of bolts
E
Hub length
T
Flanges Thickness
mm
in
mm
in
mm
in
mm
in
-
mm
in
mm
in
mm
in
15
1/2
21.4
.844
95.3
3.750
66.7
2.625
4
12.7
.500
9.5
.375
12.7
.500
20
3/4
27.0
1.062
101.6
4.000
73.0
2.875
4
12.7
.500
11.1
.437
12.7
.500
25
1
34.1
1.344
114.3
4.500
82.6
3.250
4
12.7
.500
11.1
.437
14.3
.563
32
1.1/4
42.9
1.688
120.6
4.750
87.3
3.437
4
12.7
.500
11.1
.437
17.5
.688
40
1.1/2
48.4
1.906
133.3
5.250
98.4
3.875
4
12.7
.500
12.7
.500
17.5
.688
50
2
60.3
2.375
152.4
6.000
114.3
4.500
4
15.9
.625
12.7
.500
19.0
.750
65
2.1/2
76.2
3.000
165.1
6.500
127.0
5.000
4
15.9
.625
15.9
.625
19.0
.750
80
3
88.9
3.500
184.1
7.250
146.0
5.750
4
15.9
.625
15.9
.625
22.2
.875
90
3.1/2
101.6
4.000
203.2
8.000
165.1
6.500
4
15.9
.625
17.5
.687
22.2
.875
100
4
114.3
4.500
215.9
8.500
177.8
7.000
4
15.9
.625
19.0
.750
25.4
1.000
125
5
139.7
5.500
254.0
10.000
209.6
8.250
8
15.9
.625
19.0
.750
28.6
1.125
150
6
165.1
6.500
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
28.6
1.125
-
-
168.5
6.625
279.4
11.000
235.0
9.250
8
15.9
.625
19.0
.750
28.6
1.125
175
7
193.7
7.625
304.8
12.000
260.3
10.250
8
15.9
.625
22.2
.875
31.8
1.250
200
8
219.1
8.625
336.6
13.250
292.1
11.500
8
15.9
.625
22.2
.875
31.8
1.250
225
9
244.5
9.625
368.2
14.500
323.9
12.750
8
15.9
.625
25.4
1.000
34.9
1.375
250
10
273.1
10.750
406.2
16.000
355.6
14.000
8
19.0
.750
27.0
1.062
34.9
1.375
300
12
323.9
12.750
457.2
18.000
406.4
16.000
12
19.0
.750
28.6
1.125
41.3
1.625