ANSI B16.5
Slip On Flanges - ANSI B16.5
Class 300 lb
Pipe
Flange Data
Hub
Raised Hub
Drilling Data
Weight
Nominal Pipe Size
A
B
C
D
F
G
H
I
J
Outside Diameter
Overall
Diameter
inside
Diameter
Flange
Thickness
min
Overall Length
Hub Diameter
Face Diameter
Number of Holes
Boll Hole Diameter
Diameter
of Circle
ofHates
kg/
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
piece
½
0 840
21.30
3.750 95.20
0.880 22.40
0.560 14.20
0.880 22.40
1.500 38.10
1.380 35.10
4
0.620
15.70
2.620
66.55
0.64
¾
1.050
26.70
4.620 117.3
1.090 27.70
0.620 15.70
1.000 25.40
1.880 47.70
1.690 42.90
4
0.750
19.10
3.250
82.50
1.12
1
1.315
33.40
4.880 123.9
1.360 34.50
0.690 17.50
1.060 26.90
2.120 53.80
2.000 50.80
4
0.750
19.10
3.500
88.90
1.36
1¼
1 660
42.20
5.250 133.3
1.700 43.20
0.750 19.00
1.060 26.90
2.500 63.50
2.500 63.50
4
0.750
19.10
3.880
98.60
1.68
1½
1.900
48.30
6.120 155.4
1.950 49.50
0.810 20.60
1.190 30.20
2.750 69.85
2.880 73.15
4
0.880
22.40
4.500
114.3
2.49
2
2.375
60.30
6.500 165.1
2.440 62.00
0.880 22.30
1.310 33.20
3.310 84.00
3.620 91.90
8
0.750
19.10
5.000
127.0
2.87
2½
2.875
73.00
7.500 190.5
2.940 74.70
1.000 25.40
1.500 38.10
3.940 100.0
4.120 104.6
8
0.880
22.40
5.880
149.4
4.32
3
3.500
88 90
8.250 209.5
3.570 90.70
1.120 28.40
1.690 42.90
4.620 117.3
5.000 127.0
8
0.880
22.40
6.620
168.1
5.85
3½
4.000
101.6
9.000
228 6
4.070 103.4
1.190 30.20
1.750 44.40
5.250 133.3
5.500 139.7
8
0.880
22.40
7.250
184.2
7.34
4
4.500
114.3
10.00 254.0
4.570 116.1
1.250 31.70
1.880 47.70
5.750 146.0
6.190 157.2
8
0.880
22.40
7.880
200.1
9.61
5
5.563
141.3
11.00 279.4
5.660 143.8
1.380 35.00
2.000 50.80
7.000 177.8
7.310 185.7
8
0.880
22.40
9.250
234.9
12.3
6
6.625
168.3
12.50 317.5
6.720 170.7
1.440 36.50
2.060
52 30
8.120 206.2
8.500 215.9
12
0.880
22.40
10.62
269.7
15.6
8
8.625
219.1
15.00 381.0
8.720 221.5
1.620 41.10
2.440 61.90
10.25 260.3
10.62 269.7
12
1.000
25.40
13.00
330.2
24.2
10
10.75
273.0
17.50 444.5
10.88 276.3
1.880 47.70
2.620 66.55
12.62 320.5
12.75 323.9
16
1.120
28.40
15.25
387.3
34.1
12
12.75
323.8
20 50 520.7
12.88 327.1
2.000 50.80
2.880 73.15
14.75 374.6
15.00
381 0
16
1.250
31.70
17.75
450.8
49.8
14
14.00
355.6
23.00 584.2
14.14 359.1
2.120 53.80
3.000 76.20
16.75 425.4
16.25 412.8
20
1.250
31.70
20.25
514.4
69.9
16
16.00
406.4
25.50 647.7
16.16 410.5
2.250 57.15
3.250 82.50
19.00 482.6
18.50 469.9
20
1.380
35.00
22.50
571.5
88.1
18
18.00
457.2
28.00 711.2
18.18 461.8
2.380 60.45
3.500 88.90
21.00 533.4
21.00 533.4
24
1.380
35.00
24.75
628.7
109
20
20 00
508.0
30.50 774.7
20.20 513.1
2.500 63.50
3.750 95.20
23.12 587.2
23.00 584.2
24
1.380
35.00
27.00
685.8
134
24
24.00
609.6
36.00 914.4
24.25 616.0
2.750
69.85
4.190 106.4
27.62 701.5
27.25 692.2
24
1.620
41.00
32.00
812.8
201
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).
