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FLANGES DIMENSIONT

Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall         Length
Bolt
Circle
No. and
Size of
Holes
O.D. of
raised
face
Welding
neck
Slip-on & Socket
welding
Lap Joint
Â
O
Q
Y
Diam.
No.
dia.
R
1/2
89
11.2
47.6
15.9
15.9
60.5
4
15
35
3/4
117
15.9
57.2
25.4
25.4
82.5
4
15
43
1
108
14.3
55.6
17.5
17.5
79.5
4
15
51
1.1/4
117
15.9
57.2
20.6
20.6
89.0
4
15
64
1.1/2
127
17.5
61.9
22.2
22.2
98.5
4
15
73
2
152
19.1
63.5
25.4
25.4
120.5
4
19
92
2.1/2
178
22.3
69.8
28.6
28.6
139.5
4
19
105
3
190
23.9
69.8
30.2
30.2
152.5
4
19
127
3.1/2
216
23.9
71.4
31.8
31.8
178.0
8
19
140
4
229
23.9
86.2
33.3
33.3
190.5
8
19
157
5
254
23.9
88.9
36.5
36.5
216.0
8
22
186
6
279
25.4
88.9
39.7
39.7
241.5
8
22
216
8
343
28.6
101.6
44.4
44.4
298.5
8
22
270
10
406
30.2
101.6
49.2
49.2
362.0
12
25
324
12
483
31.8
114.3
55.6
55.6
432.0
12
25
381
14
533
35.0
127.0
57.2
79.4
476.0
12
29
413
16
597
36.6
127.0
63.5
87.3
539.5
16
29
470
18
635
39.7
139.7
68.3
96.8
578.0
16
32
533
20
698
42.9
144.5
73.0
103.2
635.0
20
32
584
24
813
47.7
152.4
82.6
111.1
749.5
20
35
692