Flanges Technical Info

Flanges

ANSI B-16.5 ASA # 150,#300,#600,#900,#1500


150 LB Flanges




 

 



300 LB Flanges


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
O
Q
Y
Diam.
No.
dia.
R
1/2
95
14.3
52.4
22.2
22.2
666.5
4
15
35
3/4
117
15.9
57.2
25.4
25.4
82.4
4
19
43
1
124
17.5
61.9
27.0
27.0
89.0
4
19
51
1-1/4
133
19.1
65.1
27.0
27.0
98.5
4
19
64
1-1/2
156
20.7
68.3
30.2
30.2
114.5
4
22
73
2
165
22.3
69.8
33.3
33.3
127.0
8
19
92
2-1/2
190
25.4
76.2
38.1
38.1
149.0
8
22
105
3
210
28.6
79.4
42.9
42.9
168.0
8
22
127
4
254
318
85.7
47.6
47.6
200.0
8
22
157
5
279
35.0
98.4
50.8
50.8
235.0
8
22
186
6
313
36.6
98.4
52.4
52.4
270.0
12
22
216
6
381
413
111.1
61.9
91.9
330.0
12
25
270
10
444
47.7
117.5
66.7
95.3
387.5
16
29
324
12
521
50.8
130.2
73.0
101.6
451.0
16
32
381
14
584
54.0
142.9
76.2
111.1
514.5
20
32
413
16
648
57.2
146.0
82.6
120.7
571.5
20
35
470
18
711
60.4
158.8
88.9
130.2
628.5
24
35
533
20
775
63.5
161.9
95.2
139.7
686.0
24
35
584
24
914
69.9
168.3
106.4
152.4
843.0
24
41
692

 

 



600 LB Flanges


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
O
Q
Y
Diam.
No.
dia.
R
1/2
95
14.3
52.4
22.2
22.2
66.5
4
15
35
3/4
117
15.9
57.2
25.4
25.4
82.5
4
19
43
1
124
17.5
61.9
27.0
27.0
89.0
4
19
51
1-1/4
133
20.7
66.7
28.6
28.6
98.5
4
19
64
1-1/2
156
22.3
69.8
31.8
31.8
114.5
4
22
73
2
165
25.4
73.0
36.5
36.5
127.0
8
19
92
2-1/2
190
28.6
79.4
41.3
41.3
149.0
8
22
105
3
210
31.8
82.6
46.0
46.0
168.0
8
22
127
3-1/2
229
35.0
85.7
49.2
49.2
184.0
8
25
140
4
273
38.1
101.6
54.0
54.0
216.0
8
25
157
5
330
44.5
114.3
60.3
60.3
266.5
8
29
186
6
356
47.7
117.5
66.7
66.7
292.0
12
29
216
8
419
55.6
133.4
76.2
76.2
349.0
12
32
270
10
508
63.5
152.4
85.7
115.1
432.0
16
85
324
12
559
66.7
155.6
92.1
111.1
489.0
20
35
381
14
603
69.9
165.1
93.7
117.5
527.0
20
38
413
16
686
76.2
177.8
106.4
127.0
603.0
20
41
470
18
743
82.6
184.2
117.6
139.7
654.0
20
45
533
20
813
88.9
190.5
127.0
165.1
724.0
24
45
584
24
940
101.6
203.2
139.7
184.2
838.0
24
51
692

 



900 LB Flanges


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
O
Q
Y
Diam.
No.
dia.
R
1/2
121
22.3
60.3
31.8
31.8
82.5
4
22
35
3/4
130
25.4
69.8
34.9
34.9
89.0
4
22
43
1
149
28.6
78.0
41.3
41.3
101.5
4
25
51
1-1/4
159
28.6
78.0
41.3
41.3
111.0
4
25
64
1-1/2
178
31.8
82.6
44.4
44.4
124.0
4
29
78
2
216
38.1
101.6
57.2
57.2
165.0
8
25
92
2-1/2
244
41.3
104.8
63.5
63.5
190.5
8
29
105
8
241
38.1
101.6
54.0
54.0
190.5
8
25
127
3-1/2
4
292
44.5
114.3
69.8
69.8
235.0
8
32
157
5
349
50.8
127.0
79.4
79.4
279.5
8
35
186
6
381
55.6
189.7
85.7
85.7
317.5
12
32
216
8
470
68.5
161.9
101.8
114.3
393.5
12
38
270
10
546
69.9
184.2
108.0
127.0
470.0
16
38
324
12
610
79.4
200.0
117.5
142.9
533.5
20
38
381
14
584
54.0
142.9
76.2
111.1
514.5
20
32
413
16
711
60.4
158.8
88.9
130.2
628.5
24
35
533
20
775
63.5
161.9
95.2
139.7
686.0
24
35
584
24
914
69.9
168.3
106.4
152.4
843.0
24
41
692

 



1500 LB Flanges


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
O
Q
Y
Diam.
No.
dia.
R
1/2
12.1
22.3
60.3
31.8
31.8
82.5
4
22
35
3/4
130
25.4
69.8
34.9
34.9
89.0
4
22
43
1
149
28.6
73.0
41.3
41.3
101.5
4
25
51
1-1/4
159
28.6
73.0
41.3
41.3
111.0
4
25
64
1-1/2
178
31.8
82.6
44.4
44.4
124.0
4
29
73
2
216
38.1
101.6
57.2
57.2
165.0
8
25
92
2-1/2
244
41.3
104.8
63.5
63.5
190.5
8
29
105
3
267
47.7
117.5
73.0
73.0
203.0
8
32
127
3-1/2
4
311
54.0
123.8
90.5
90.5
241.5
8
35
157
5
375
73.1
155.5
104.8
104.8
292.0
8
41
186
6
394
82.6
171.4
119.1
119.1
317.5
12
38
216
8
483
92.1
212.7
142.9
142.9
393.5
12
45
270
10
584
108.0
254.0
158.8
177.8
482.5
12
51
324
12
673
123.9
282.9
181.0
219.1
571.5
16
54
381
14
749
133.4
298.4
-----
241.3
635.0
16
60
413
16
826
146.1
311.2
-----
260.4
705.0
16
51
470
18
914
162.0
327.0
------
276.2
474.5
16
73
538
20
984
117.8
355.4
-----
292.1
832.0
16
80
584
24
1168
203.2
406.4
-----
330.2
990.5
16
92
692

 

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