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Lap Joint Flanges

Dimensions Lap Joint Flanges & Stud Bolts ASME B16.5
CL 150 300 600 900 1500 2500
DIA A
30
38
38
38
38
43
DIA D
90
95
95
120
120
135
THK B
11.2
14.3
14.3
22.3
22.3
30.2
DIA K
60.3
66.7
66.7
82.6
82.6
88.9
H
16
22
22
32
32
40
NO. L
4
4
4
4
4
4
DIA L
15.9
15.9
15.9
22.2
22.2
22.2
Stud Bolts Diameter x Length
DIA (in)
1/2
1/2
1/2
3/4
3/4
3/4
Len mm
55
65
75
110
110
120
CL 150 300 600 900 1500 2500
DIA A
38
48
48
44
44
51
DIA D
100
115
115
130
130
140
THK B
12.8
15.9
15.9
25.4
25.4
31.8
DIA K
69.9
82.6
82.6
88.9
88.9
95
H
16
25
25
35
35
43
NO. L
4
4
4
4
4
4
DIA L
15.9
19.1
19.1
22.2
22.2
22.2
Stud Bolts Diameter x Length
DIA (in)
1/2
5/8
5/8
3/4
3/4
3/4
Len mm
65
75
90
115
115
125
CL 150 300 600 900 1500 2500
DIA A
49.2
54
54
52
52
57
DIA D
110
125
125
150
150
160
THK B
14.3
17.5
17.5
28.6
28.6
35
DIA K
79.4
88.9
88.9
101.6
101.6
107.4
H
17
27
27
41
41
48
NO. L
4
4
4
4
4
4
DIA L
15.9
19.1
19.1
25.4
25.4
25.4
Stud Bolts Diameter x Length
DIA (in)
1/2
5/8
5/8
7/8
7/8
7/8
Len mm
65
75
90
125
125
140
CL 150 300 600 900 1500 2500
DIA A
59
64
64
64
64
73
DIA D
115
135
135
160
160
185
THK B
15.9
19.1
20.7
28.6
28.6
38.1
DIA K
88.9
98.4
98.4
111.1
111.1
130.2
H
21
27
29
41
41
52
NO. L
4
4
4
4
4
4
DIA L
15.9
19.1
19.1
25.4
25.4
28.6
Stud Bolts Diameter x Length
DIA (in)
1/2
5/8
5/8
7/8
7/8
1
Len mm
70
85
95
125
125
150
CL 150 300 600 900 1500 2500
DIA A
65
70
70
70
70
79
DIA D
125
155
155
180
180
205
THK B
17.5
20.7
22.3
31.8
31.8
44.5
DIA K
98.4
114.3
114.3
123.8
123.8
146
H
22
30
32
44
44
60
NO. L
4
4
4
4
4
4
DIA L
15.9
22.2
22.2
28.6
28.6
31.8
Stud Bolts Diameter x Length
DIA (in)
1/2
3/4
3/4
1
1
1?
Len mm
70
90
110
140
140
170
CL 150 300 600 900 1500 2500
DIA A
78
84
84
105
105
95
DIA D
150
165
165
215
215
235
THK B
19.1
22.3
25.4
38.1
38.1
50.9
DIA K
120.7
127
127
165.1
165.1
171.4
H
25
33
37
57
57
70
NO. L
4
8
8
8
8
8
DIA L
19.1
19.1
19.1
25.4
25.4
28.6
Stud Bolts Diameter x Length
DIA (in)
5/8
5/8
5/8
7/8
7/8
1
Len mm
85
90
110
145
145
180
CL 150 300 600 900 1500 2500
DIA A
90
100
100
125
125
114
DIA D
180
190
190
245
245
265
THK B
22.3
25.5
28.6
41.3
41.3
57.2
DIA K
139.7
149.2
149.2
190.5
190.5
197
H
29
38
41
64
64
79
NO. L
4
8
8
8
8
8
DIA L
19.1
22.2
22.2
28.6
28.6
31.8
Stud Bolts Diameter x Length
DIA (in)
5/8
3/4
3/4
1
1
1?
Len mm
90
100
120
160
160
195
CL 150 300 600 900 1500 2500
DIA A
108
115
115
127
125
125
DIA D
190
210
210
240
265
305
THK B
23.9
28.6
31.8
38.1
47.7
66.7
DIA K
152.4
168.3
168.3
190.5
205
230
H
30
43
46
54
73
92
69.6
79.6
89.4
108.4
123.4
174.4
NO. L
4
8
8
8
8
8
DIA L
19.1
22.2
22.2
25.4
31.8
34.9
Stud Bolts Diameter x Length
DIA (in)
5/8
3/4
3/4
7/8
1?
1¼
Len mm
90
110
125
145
180
220
CL 150 300 600 900 1500 2500
DIA A
122
135
133
...
...
...
DIA D
215
230
230
...
...
...
THK B
23.9
30.2
35
...
...
...
DIA K
177.8
184.2
184.2
...
...
...
H
32
44
49
...
...
...
71.6
80.6
92.4
...
...
...
NO. L
8
8
8
...
...
...
DIA L
19.1
22.2
25.4
...
...
...
Stud Bolts Diameter x Length
DIA (in)
5/8
3/4
7/8
...
...
...
Len mm
90
110
140
...
...
...
CL 150 300 600 900 1500 2500
DIA A
135
146
152
160
162
165
DIA D
230
255
275
290
310
355
THK B
23.9
31.8
38.1
44.5
54
76.2
DIA K
190.5
200
215.9
235
240
273
H
33
48
54
70
90
108
76.6
85.6
108.4
120.4
130.4
196.4
NO. L
8
8
8
8
8
8
DIA L
19.1
22.2
25.4
31.8
34.9
41.3
Stud Bolts Diameter x Length
DIA (in)
5/8
3/4
7/8
1?
1¼
1½
Len mm
90
115
145
170
195
255
CL 150 300 600 900 1500 2500
DIA A
192
206
222
235
230
235
DIA D
280
320
355
380
395
485
THK B
25.5
36.6
47.7
55.6
82.6
108
DIA K
241.3
269.9
292.1
317.5
320
368
H
40
52
67
86
119
152
NO. L
8
12
12
12
12
8
DIA L
22.2
22.2
28.6
31.8
38.1
54
Stud Bolts Diameter x Length
DIA (in)
3/4
3/4
1
1?
1?
2
Len mm
100
120
170
190
260
345
CL 150 300 600 900 1500 2500
DIA A
246
260
272
298
290
305
DIA D
345
380
420
470
485
550
THK B
28.6
41.3
55.6
63.5
92.1
127
DIA K
298.5
330.2
349.2
393.7
395
438.1
H
44
62
76
114
143
178
101.6
111.6
139.4
168.4
219.4
324.4
NO. L
8
12
12
12
12
12
DIA L
22.2
25.4
31.8
38.1
44.5
54
Stud Bolts Diameter x Length
DIA (in)
3/4
7/8
1?
1?
1?
2
Len mm
110
140
190
220
290
380
CL 150 300 600 900 1500 2500
DIA A
305
321
345
368
368
375
DIA D
405
445
510
545
585
675
THK B
30.2
47.7
63.5
69.9
108
165
DIA K
362
387.4
431.8
469.9
485
539.7
H
49
95
111
127
178
229
101.6
117.6
158.4
190.4
260.4
425.4
NO. L
12
16
16
16
12
12
DIA L
25.4
28.6
34.9
38.1
50.8
66.7
Stud Bolts Diameter x Length
DIA (in)
7/8
1
1¼
1?
1?
2½
Len mm
115
160
215
235
335
490
CL 150 300 600 900 1500 2500
DIA A
365
375
400
420
451
441
DIA D
485
520
560
610
675
760
THK B
31.8
50.9
66.7
79.4
123.9
184.2
DIA K
431.8
450.8
489
533.4
571.5
619.1
H
56
102
117
143
219
254
114.6
130.6
162.4
206.4
289.4
470.4
NO. L
12
16
20
20
16
12
DIA L
25.4
31.8
34.9
38.1
54
73
Stud Bolts Diameter x Length
DIA (in)
7/8
1?
1¼
1?
2
2�
Len mm
120
170
220
255
375
540
CL 150 300 600 900 1500 2500
DIA A
400
425
432
451
495
...
DIA D
535
585
605
640
750
...
THK B
35
54
69.9
85.8
133.4
...
DIA K
476.3
514.4
527
558.8
635
...
H
79
111
127
156
241
...
126.6
142.6
171.4
219.4
304.4
...
NO. L
12
20
20
20
16
...
DIA L
28.6
31.8
38.1
41.3
60.3
...
Stud Bolts Diameter x Length
DIA (in)
1
1?
1?
1½
2¼
...
Len mm
135
180
235
275
405
...
CL 150 300 600 900 1500 2500
DIA A
457
485
495
508
550
...
DIA D
595
650
685
705
825
...
THK B
36.6
57.2
76.2
88.9
146.1
...
DIA K
539.8
571.5
603.2
616
705
...
H
87
121
140
165
260
...
NO. L
16
20
20
20
16
...
DIA L
28.6
34.9
41.3
44.5
66.7
...
Stud Bolts Diameter x Length
DIA (in)
1
1¼
1½
1?
2½
...
Len mm
135
190
255
285
445
...
CL 150 300 600 900 1500 2500
DIA A
505
533
545
565
597
...
DIA D
635
710
745
785
915
...
THK B
39.7
60.4
82.6
101.6
162
...
DIA K
577.9
628.6
654
685.8
775
...
H
97
130
152
190
276
...
NO. L
16
24
20
20
16
...
DIA L
31.8
34.9
44.5
50.8
73
...
Stud Bolts Diameter x Length
DIA (in)
1?
1¼
1?
1?
2�
...
Len mm
145
195
275
325
495
...
CL 150 300 600 900 1500 2500
DIA A
560
587
610
622
640
...
DIA D
700
775
815
855
985
...
THK B
42.9
63.6
88.9
108
177.8
...
DIA K
635
685.8
723.9
749.3
831.8
...
H
103
140
165
210
292
...
NO. L
20
24
24
20
16
...
DIA L
31.8
34.9
44.5
54
79.4
...
Stud Bolts Diameter x Length
DIA (in)
1?
1¼
1?
2
3
...
Len mm
160
205
285
350
540
...
CL 150 300 600 900 1500 2500
DIA A
663
702
718
750
762
...
DIA D
815
915
940
1040
1170
...
THK B
47.7
69.9
101.6
139.7
203.2
...
DIA K
749.3
812.8
838.2
901.7
990.6
...
H
111
152
184
267
330
...
NO. L
20
24
24
20
16
...
DIA L
34.9
41.3
50.8
66.7
92.1
...
Stud Bolts Diameter x Length
DIA (in)
1¼
1½
1?
2½
3½
...
Len mm
170
230
330
440
615
...

Notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • The length of the Stud Bolt does not include the height of the chamfers (points).

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