ASME B 16.5-2003 CLASS 300
CLASS 300
FLANGE THICKNESS
LTB
DRILLINE DATA
CLASS 300
NOMINAL PIPE SIZE
FLANGE OUTSIDE DIAMETER
THICKNESS OF FLANCE MIN
THICKNESS OF LAP MIN
BOSSED LENGTH
WELD NECK LENGTH (Refer Note.1 )
LAP JOINT LENGTH
LONG WELD NECK LENGTH (Refer Note.2 )
PITCH CIRCLE DIAMETER
BOLT HOLE DIAMETER
NUMBER OF BOLT HOLES
NOMINAL PIPE SIZE
MM
INCH
OD
T
T1
L
L1
L2
L3
PCD
H
#
MM
INCH
15
1/2
95
12.7
14.3
22
51
21
229
66.7
16
4
15
1/2
20
3/4
115
14.3
15.9
25
56
24
229
82.6
20
4
20
3/4
25
1
125
15.9
17.5
27
60
25
229
88.9
20
4
25
1
32
1 1/4
135
17.5
19.1
27
64
25
229
98.4
20
4
32
1 1/4
40
1 1/2
155
19.1
20.7
30
67
29
229
114.3
23
4
40
1 1/2
50
2
165
20.7
22.3
33
68
32
229
127
20
8
50
2
65
2 1/2
190
23.9
25.5
38
75
37
229
149.2
23
8
65
2 1/2
80
3
210
27
28.6
43
78
41
229
168.3
23
8
80
3
90
3 1/2
230
28.6
30.2
44
79
43
229
184.2
23
8
90
3 1/2
100
4
255
30.2
31.8
48
84
46
229
200
23
8
100
4
125
5
280
33.4
35
49
97
49
305
235
23
8
125
5
150
6
320
35
36.6
51
97
51
305
269.9
23
12
150
6
200
8
380
39.7
41.3
60
110
60
305
330.2
26
12
200
8
250
10
445
46.1
47.7
65
116
95
305
387.4
29
16
250
10
300
12
520
49.3
50.9
73
129
102
305
450.8
32
16
300
12
350
14
585
52.4
54
76
141
111
305
514.4
32
20
350
14
400
16
650
55.6
57.2
82
144
121
305
571.5
35
20
400
16
450
18
710
58.8
60.4
88
157
130
305
628.6
35
24
450
18
500
20
775
62
63.6
95
160
140
305
685.8
35
24
500
20
600
24
915
68.3
69.9
106
167
152
305
812.8
42
24
600
24
NOTES: *Schedule of weld neck to be indicated.
Comments