| Standard No. |
Diameter Range |
Pressure Rating |
Conventional Materials |
| ASME B16.5 |
1/2~24" |
CLASS 150 300 600 900 1500 2500 |
ASTM A182
F304
F304L
F321
F316
F316L
F51
F55
F60
F316Ti
F310
F317L
F347H |
| ANSI B 16.47 |
26~60" |
CLASS 150 300 600 900 |
| AWWA C207 |
4~144" |
CLASS 86 175-150 275 300 |
| ISO7005-1 |
1/2~24" |
PN 2.0 5.0 11.0 15.0 26.0 42.0 |
| BS4504-3.1 |
1/2~24" |
CLASS 150 300 600 900 1500 2500 |
| NF E29-203 |
1/2~24" |
PN 2.0 5.0 11.0 15.0 26.0 42.0 |
| API605 |
26~60" |
CLASS 150 300 600 |
| ASME B 16.36 |
1/2~24" |
CLASS 300 400 600 900 1500 2500 |
ASME B16.5 CLASS 150 PIPE FLANGES
Dimensions in mm
Nominal
Pipe
Size |
Outside
Diameter |
Thickness |
Thickness
of
Lap Joint |
Raised
Face
Diameter |
Corner
Radius of
Bore of
Lap Joint |
Bore |
Length thru hub |
Thread
Length
Threaded
Flange
(Min) |
Depth
of
Socket |
Diameter
Hub at
Bevel |
Welding
Neck
Socket
Welding |
Slip-On
Socket
Welding |
Lap
Joint |
Welding
Neck |
Slip-on
Threaded
Socket
Welding |
Lap
Joint |
| o |
c |
C1 |
R |
r |
B1 |
B2 |
B3
|
Y1 |
Y2 |
Y3 |
T |
D |
A |
| ¹/2 |
90 |
9.6 |
11.2 |
34.9 |
3.0 |
15.8 |
22.2 |
22.9 |
46.0 |
14.0 |
16.0 |
16.0 |
10.0 |
21.3 |
| ³/4 |
100 |
11.2 |
12.7 |
42.9 |
3.0 |
20.9 |
27.7 |
28.2 |
51.0 |
14.0 |
16.0 |
16.0 |
11.0 |
26.7 |
| 1 |
110 |
12.7 |
14.3 |
50.8 |
3.0 |
26.6 |
34.5 |
34.9 |
54.0 |
16.0 |
17.0 |
17.0 |
13.0 |
33.4 |
| 1 ¹/4 |
115 |
14.3 |
15.9 |
63.5 |
5.0 |
35.1 |
43.2 |
43.7 |
56.0 |
19.0 |
21.0 |
21.0 |
14.0 |
42.2 |
| 1 ¹/2 |
125 |
15.9 |
17.5 |
73.0 |
6.0 |
40.9 |
49.5 |
50.0 |
60.0 |
21.0 |
22.0 |
22.0 |
16.0 |
48.3 |
| 2 |
150 |
17.5 |
19.1 |
92.1 |
8.0 |
52.5 |
61.9 |
62.5 |
62.0 |
24.0 |
25.0 |
25.0 |
17.0 |
60.3 |
| 2 ¹/2 |
180 |
20.7 |
22.3 |
104.8 |
8.0 |
62.7 |
74.6 |
75.4 |
68.0 |
27.0 |
29.0 |
29.0 |
19.0 |
73.0 |
| 3 |
190 |
22.3 |
23.9 |
127.0 |
10.0 |
77.9 |
90.7 |
91.4 |
68.0 |
29.0 |
30.0 |
30.0 |
21.0 |
88.9 |
| 3 ¹/2 |
215 |
22.3 |
23.9 |
139.7 |
10.0 |
90.1 |
103.4 |
104.1 |
70.0 |
30.0 |
32.0 |
32.0 |
22.4 |
101.6 |
| 4 |
230 |
22.3 |
23.9 |
157.2 |
11.0 |
102.3 |
116.1 |
116.8 |
75.0 |
32.0 |
33.0 |
33.0 |
24.0 |
114.3 |
| 5 |
255 |
22.3 |
23.9 |
185.7 |
11.0 |
128.2 |
143.8 |
144.4 |
87.0 |
35.0 |
36.0 |
36.0 |
24.0 |
141.3 |
| 6 |
280 |
23.9 |
25.4 |
215.9 |
13.0 |
154.1 |
170.7 |
171.4 |
87.0 |
38.0 |
40.0 |
40.0 |
27.0 |
168.3 |
| 8 |
345 |
27.0 |
28.6 |
269.9 |
13.0 |
202.7 |
221.5 |
222.2 |
100.0 |
43.0 |
44.0 |
44.0 |
32.0 |
219.1 |
| 10 |
405 |
28.6 |
30.2 |
323.8 |
13.0 |
254.6 |
276.2 |
277.4 |
100.0 |
48.0 |
49.0 |
49.0 |
33.0 |
273.0 |
| 12 |
485 |
30.2 |
31.8 |
381.0 |
13.0 |
304.8 |
327.0 |
328.2 |
113.0 |
54.0 |
56.0 |
56.0 |
40.0 |
323.8 |
| 14 |
535 |
33.4 |
35.0 |
412.8 |
13.0 |
To
be
specified
by
purchaser |
359.2 |
360.2 |
125.0 |
56.0 |
79.0 |
57.0 |
41.4 |
355.6 |
| 16 |
595 |
35.0 |
36.6 |
469.9 |
13.0 |
410.5 |
411.2 |
125.0 |
62.0 |
87.0 |
64.0 |
44.5 |
406.4 |
| 18 |
635 |
38.1 |
39.7 |
533.4 |
13.0 |
461.8 |
462.3 |
138.0 |
67.0 |
97.0 |
68.0 |
49.0 |
457.0 |
| 20 |
700 |
41.3 |
42.9 |
584.2 |
13.0 |
513.1 |
514.4 |
143.0 |
71.0 |
103.0 |
73.0 |
54.0 |
508.0 |
| 24 |
815 |
46.1 |
47.7 |
692.2 |
13.0 |
616.0 |
616.0 |
151.0 |
81.0 |
111.0 |
83.0 |
60.5 |
610.0 |
Dimensions in mm
Hub
Diameter |
Drilling |
Approximate Weight |
Nominal
Pipe
Size |
Bolt
Circle
Diameter
Holes
|
Diameter
of
Bolt
Holes
|
Number
of
Bolt |
Welding
Neck |
Slip On
Threaded |
Lap
Joint |
Blind |
Socket
Welding |
| X |
Kg |
lb |
Kg |
lb |
Kg |
lb |
Kg |
lb |
Kg |
lb |
| 30 |
60.3 |
15.9 |
4 |
0.51 |
1.1 |
0.47 |
1 |
0.51 |
1 |
0.47 |
1 |
0.47 |
1 |
¹/2 |
| 38 |
69.9 |
15.9 |
4 |
0.73 |
1.6 |
0.58 |
1.3 |
0.64 |
1.4 |
0.63 |
1.4 |
0.59 |
1.3 |
³/4 |
| 49 |
79.4 |
15.9 |
4 |
1.07 |
2.4 |
0.86 |
1.9 |
0.93 |
1.8 |
0.94 |
2.1 |
0.87 |
1.9 |
1 |
| 59 |
88.9 |
15.9 |
4 |
1.4 |
3.1 |
1.08 |
2.4 |
1.16 |
2 |
1.23 |
2.7 |
1.11 |
2.4 |
1 ¹/4 |
| 65 |
98.4 |
15.9 |
4 |
1.81 |
4 |
1.41 |
3.1 |
1.51 |
3.3 |
1.62 |
3.6 |
1.45 |
3.2 |
1 ¹/2 |
| 78 |
120.7 |
19.1 |
4 |
2.59 |
5.7 |
2.26 |
5 |
2.38 |
5.2 |
2.64 |
5.8 |
2.33 |
5 |
2 |
| 90 |
139.7 |
19.1 |
4 |
4.28 |
9.4 |
3.43 |
7.6 |
3.6 |
7.9 |
4.06 |
9 |
3.55 |
7.8 |
2 ¹/2 |
| 108 |
152.4 |
19.1 |
4 |
5.18 |
11.4 |
3.87 |
8.5 |
4.04 |
8.9 |
4.9 |
10.8 |
4.02 |
8.9 |
3 |
| 122 |
177.8 |
19.1 |
8 |
5.45 |
12 |
4.99 |
11 |
4.99 |
11 |
5.9 |
13 |
4.99 |
11 |
3 ¹/2 |
| 135 |
190.5 |
19.1 |
8 |
7.32 |
16.1 |
5.75 |
12.7 |
5.96 |
13 |
7.41 |
16.3 |
5.99 |
13.2 |
4 |
| 164 |
215.9 |
22.2 |
8 |
8.91 |
19.6 |
6.22 |
13.7 |
6.44 |
14 |
8.76 |
19.3 |
6.68 |
14.7 |
5 |
| 192 |
241.3 |
22.2 |
8 |
11.26 |
24.8 |
7.38 |
16.3 |
7.59 |
16.7 |
11.31 |
24.9 |
7.99 |
17.6 |
6 |
| 246 |
298.5 |
22.2 |
8 |
17.68 |
39 |
12.36 |
27.3 |
12.66 |
27.9 |
19.92 |
43.9 |
13.29 |
29.3 |
8 |
| 305 |
362 |
25.4 |
12 |
24.79 |
54.7 |
17.1 |
37.7 |
16.78 |
37 |
29.39 |
64.8 |
19.5 |
43 |
10 |
| 365 |
431.8 |
25.4 |
12 |
38.98 |
85.9 |
27.68 |
61 |
28.3 |
36.4 |
43.7 |
96.3 |
29.03 |
64 |
12 |
| 400 |
476.3 |
28.6 |
12 |
51.71 |
114 |
35.2 |
77.6 |
41.5 |
91.5 |
59.42 |
140 |
38.56 |
85 |
14 |
| 457 |
539.8 |
28.6 |
16 |
64.41 |
142 |
42.18 |
93 |
52.98 |
116.8 |
77.11 |
170 |
44.49 |
98 |
16 |
| 505 |
577.9 |
31.8 |
16 |
74.84 |
165 |
49.71 |
109.6 |
59 |
130 |
94.8 |
209 |
54.43 |
120 |
18 |
| 559 |
635 |
31.8 |
20 |
89.36 |
197 |
65.5 |
140 |
72.12 |
159 |
123.38 |
272 |
70.31 |
155 |
20 |
| 663 |
749.3 |
34.9 |
20 |
119.66 |
263.8 |
90.5 |
199.5 |
99.02 |
218.3 |
188.24 |
415 |
95.25 |
210 |
24 |
NOTES
1. Raised face height (f=2.0mm) not included in thickness (C) and length through hub (Y1, Y2)
2. For Slip-on, Threaded, Socket-Welding, lab Joint flanges, the hub shall be tapered 7° max. or vertical from base to top.
3. Blind Flanges may be made with the same hub as that used for Slip-On flanges or without hub.
ASME B16.5 CLASS 300 PIPE FLANGES
Dimensions in mm
Nominal
Pipe
Size |
Outside
Diameter |
Thickness |
Thickness
of
Lap Joint |
Raised
Face
Diameter |
Corner
Radius
of
Bore
of
Lap
Joint |
Bore |
Diameter
Counter
Bore
Threaded |
Length thru hub |
Thread
Length
Threaded
Flange
(Min) |
Depth
of
Socket |
Welding
Neck
Socket
Welding |
Slip-On
Socket
Welding |
Lap
Joint |
Welding
Neck |
Slip-on
Threaded
Socket
Welding |
Lap
Joint |
| o |
c |
C1 |
R |
r |
B1 |
B2 |
B3 |
Q |
Y1 |
Y2 |
Y3 |
T |
D |
| ¹/2 |
95 |
12.7 |
14.3 |
34.9 |
3 |
15.8 |
22.2 |
22.9 |
23.6 |
51 |
21 |
22 |
16 |
10 |
| ³/4 |
115 |
14.3 |
15.9 |
42.9 |
3 |
20.9 |
27.7 |
28.2 |
29 |
56 |
24 |
25 |
16 |
11 |
| 1 |
125 |
15.9 |
17.5 |
50.8 |
3 |
26.6 |
34.5 |
34.9 |
35.8 |
60 |
25 |
27 |
18 |
13 |
| 1 ¹/4 |
135 |
17.5 |
19.1 |
63.5 |
5 |
35.1 |
43.2 |
43.7 |
44.4 |
64 |
25 |
27 |
21 |
14 |
| 1 ¹/2 |
155 |
19.1 |
20.7 |
73 |
6 |
40.9 |
49.5 |
50 |
50.3 |
67 |
29 |
30 |
23 |
16 |
| 2 |
165 |
20.7 |
22.3 |
92.1 |
8 |
52.5 |
61.9 |
62.5 |
63.5 |
68 |
32 |
33 |
29 |
17 |
| 2 ¹/2 |
190 |
23.9 |
25.4 |
104.8 |
8 |
62.7 |
74.6 |
75.4 |
76.2 |
75 |
37 |
38 |
32 |
19 |
| 3 |
210 |
27 |
28.6 |
127 |
10 |
77.9 |
90.7 |
91.4 |
92.2 |
78 |
41 |
43 |
32 |
21 |
| 3 ¹/2 |
230 |
28.6 |
30.2 |
139.7 |
10 |
90.1 |
103.4 |
104.1 |
104.9 |
79 |
43 |
44 |
37 |
--- |
| 4 |
255 |
30.2 |
31.8 |
157.2 |
11 |
102.3 |
116.1 |
116.8 |
117.6 |
84 |
46 |
48 |
37 |
--- |
| 5 |
280 |
33.4 |
35 |
185.7 |
11 |
128.2 |
143.8 |
144.4 |
144.4 |
97 |
49 |
51 |
43 |
--- |
| 6 |
320 |
35 |
36.6 |
215.9 |
13 |
154.1 |
170.7 |
171.4 |
171.4 |
97 |
51 |
52 |
47 |
--- |
| 8 |
380 |
39.7 |
41.3 |
269.9 |
13 |
202.7 |
221.5 |
222.2 |
222.2 |
110 |
60 |
62 |
51 |
--- |
| 10 |
445 |
46.1 |
47.7 |
323.8 |
13 |
254.6 |
276.2 |
277.4 |
276.2 |
116 |
65 |
95 |
56 |
--- |
| 12 |
520 |
49.3 |
50.8 |
381 |
13 |
304.8 |
327 |
328.2 |
328.6 |
129 |
71 |
102 |
61 |
--- |
| 14 |
585 |
52.4 |
54 |
412.8 |
13 |
To
be
specified
by
purchaser |
359.2 |
360.2 |
360.4 |
141 |
75 |
111 |
64 |
--- |
| 16 |
650 |
55.6 |
57.2 |
469.9 |
13 |
410.5 |
411.2 |
411.2 |
144 |
81 |
121 |
69 |
--- |
| 18 |
710 |
58.8 |
60.4 |
533.4 |
13 |
461.8 |
462.3 |
462 |
157 |
87 |
130 |
70 |
--- |
| 20 |
775 |
62 |
63.5 |
584.2 |
13 |
513.1 |
514.4 |
512.8 |
160 |
94 |
140 |
74 |
--- |
| 24 |
915 |
68.3 |
63.9 |
692.2 |
13 |
616 |
616 |
614.4 |
167 |
105 |
152 |
83 |
--- |
Dimensions in mm
Diameter
Hub
at
Bevel |
Hub
Diameter |
Drilling |
Approximate Weight |
Nominal
Pipe
Size |
Bolt
Circle
Diameter
Holes |
Diameter
of
Bolt
Holes |
Number
of
Bolt |
Welding
Neck |
Slip On
Threaded |
Lap
Joint |
Blind |
Socket
Welding |
| A |
X |
kg |
lb |
kg |
lb |
kg |
lb |
kg |
lb |
kg |
lb |
| 21.3 |
38 |
66.7 |
15.9 |
4 |
0.78 |
1.7 |
0.62 |
1.4 |
0.61 |
1.3 |
0.62 |
1.4 |
0.62 |
1.4 |
¹/2 |
| 26.7 |
48 |
82.6 |
19.1 |
4 |
1.34 |
3 |
1.15 |
2.5 |
1.15 |
2.5 |
1.16 |
2.5 |
1.19 |
2.6 |
³/4 |
| 33.4 |
54 |
88.9 |
19.1 |
4 |
1.64 |
3.6 |
1.39 |
3.1 |
1.38 |
3 |
1.42 |
3 |
1.44 |
3.2 |
1 |
| 42.2 |
64 |
98.4 |
19.1 |
4 |
2.06 |
4.5 |
1.67 |
3.7 |
1.66 |
3.7 |
1.79 |
3.9 |
1.73 |
3.8 |
1 ¹/4 |
| 48.3 |
70 |
114.3 |
22.2 |
4 |
3.06 |
6.7 |
2.53 |
5.6 |
2.52 |
5.6 |
2.68 |
5.9 |
2.62 |
5.8 |
1 ¹/2 |
| 60.3 |
84 |
127 |
19.1 |
8 |
3.4 |
7.5 |
2.8 |
6.2 |
2.79 |
6.2 |
3.09 |
6.8 |
2.94 |
6.5 |
2 |
| 73 |
100 |
149.2 |
22.2 |
8 |
5.31 |
11.7 |
4.25 |
9.4 |
4.22 |
9.3 |
4.75 |
10.5 |
4.49 |
9.9 |
2 ¹/2 |
| 88.9 |
117 |
168.3 |
22.2 |
8 |
7.32 |
16.1 |
5.81 |
12.8 |
5.78 |
12.7 |
6.79 |
14.9 |
6.2 |
13.7 |
3 |
| 101.6 |
133 |
184.2 |
22.2 |
8 |
8.17 |
18 |
7.72 |
17 |
7.72 |
17 |
9.53 |
21 |
|
|
3 ¹/2 |
| 114.3 |
146 |
200 |
22.2 |
8 |
11.3 |
24.9 |
10.13 |
22.3 |
10.07 |
22.2 |
12 |
26.5 |
|
|
4 |
| 141.3 |
178 |
235 |
22.2 |
8 |
15.12 |
33.3 |
12.58 |
27.7 |
12.52 |
27.6 |
15.96 |
35.2 |
|
|
5 |
| 168.3 |
206 |
269.9 |
22.2 |
12 |
19.68 |
43.4 |
16.04 |
35.4 |
15.95 |
35.2 |
21.2 |
46.7 |
|
|
6 |
| 219.1 |
260 |
330.2 |
25.4 |
12 |
30.48 |
67.2 |
24.5 |
54 |
24.37 |
53.7 |
34.6 |
76.3 |
|
|
8 |
| 273 |
321 |
387.4 |
28.6 |
16 |
43.74 |
96.4 |
34.16 |
75.3 |
39.92 |
88 |
55.34 |
122 |
|
|
10 |
| 323.8 |
375 |
450.8 |
31.8 |
16 |
64.41 |
142 |
51.26 |
113 |
58.7 |
129.4 |
78.9 |
174 |
|
|
12 |
| 355.6 |
425 |
514.4 |
31.8 |
20 |
88.3 |
94.7 |
72.12 |
159 |
83.46 |
184 |
107.05 |
236 |
|
|
14 |
| 406.4 |
483 |
571.5 |
34.9 |
20 |
112.94 |
249 |
90.4 |
199.3 |
106.14 |
234 |
139.25 |
307 |
|
|
16 |
| 457 |
533 |
628.6 |
34.9 |
24 |
138.34 |
305 |
109 |
240.3 |
133.95 |
295.3 |
176.9 |
396 |
|
|
18 |
| 508 |
587 |
685.8 |
34.9 |
24 |
167.37 |
369 |
136 |
300 |
157.65 |
347.6 |
223.17 |
492 |
|
|
20 |
| 610 |
702 |
812.8 |
41.3 |
24 |
235.41 |
519 |
204 |
449.7 |
240.4 |
530 |
342 |
754 |
|
|
24 |
NOTES
1.Raised face height (f=2.0mm) not included in thickness (C) and length through hub (Y1, Y2)
2. For Slip-On, Threaded, Socket-Welding, lap Joint flanges, the hub shall be tapered 7° max. or vertical from base to top.
3. Blind Flanges may be made with the same hub as that used for Slip-On flanges or without hub.
