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ANSI B16.5
Blind Flanges
Class 150 lb

 
Pipe Flange Data Raised Face Drillinchg Data Weight
Norminchal
Pipe
Size
  A C G H I J  
Outside
Diemeter
Overail
Diameter
Flange
Thickness
minch
Face
Diameter
Number
Of
Holes
Boit Hole
Diameter
Diameter Of
Circle
Of Holes
kg/
peice
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
½ 0 840
21.30
3.500
88.90
0.440
11.20
1.380
35.10
4 0.620
15.70
2.380
60.45
0.42
¾ 1.050
26.70
3.880
98.60
0.500
12.70
1.690
42.90
4 0.620
15.70
2.750
69.85
0.61
1 1.315
33.40
4.250
108.0
0.560
14.20
2.000
50.80
4 0.620
15.70
3.120
79.25
0.86
1¼ 1.660
42.20
4.620
117.3
0.620
15.70
2.500
63 50
4 0.620
15.70
3.500
88.90
1.17
1½ 1.900
48.30
5.000
127.0
0.690
17.50
2.880
73.15
4 0.620
15.70
3.880
98.60
1.53
2 2.375
60.30
6.000
152.4
0.750
19.10
3.620
91.90
4 0.750
19.10
4.750
120.7
2.42
2½ 2.875
73.00
7.000
177.8
0.880
22.40
4.120
104.6
4 0.750
19.10
5.500
139.7
3.94
3 3.500
88.90
7.500
190.5
0.940
23.90
5.000
127.0
4 0.750
19.10
6.000
152.4
4.93
3½ 4.000
101.6
8.500
215.9
0.940
23.90
5.500
139.7
8 0.750
19.10
7.000
177.8
6.17
4 4.500
114.3
9.000
228.6
0.940
23.90
6.190
157.2
8 0.750
19.10
7.500
190.5
7.00
5 5.563
141.3
10.00
254.0
0.940
23.90
7.310
185.7
8 0.880
22.40
8.500
215.9
8.63
6 6.625
168.3
11.00
279.4
1.000
25.40
8.500
215.9
8 0.880
22.40
9.500
241.3
11.3
8 8.625
219.1
13.50
342.9
1.120
28.40
10.62
269.7
8 0.880
22.40
11.75
298.5
19.6
10 10.75
273.0
16.00
406.4
1.190
30.20
12.75
323.9
12 1.000
25.40
14.25
362.0
28.8
12 12.75
323.8
19.00
482.6
1.250
31.75
15.00
381.0
12 1.000
25.40
17.00
431.8
43.2
14 14.00
355.6
21.00
533.4
1.380
35.10
16.25
412.8
12 1.120
28.40
18.75
476.3
58.1
16 16.00
406.4
23.50
596.9
1.440
36.60
18.50
469.9
16 1.120
28.40
21.25
539.8
76.0
18 18.00
457.2
25.00
635.0
1.560
39.60
21.00
533.4
16 1.250
31.75
22.75
577.9
93.7
20 20.00
508.0
27.50
698.5
1.690
42.90
23.00
584.2
20 1.250
31.75
25.00
635.0
122
24 24.00
609.6
32.00
812.8
1.880
47.80
27.25
692.2
20 1 380
35.10
29.50
749.3
185
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).
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