Flange

 

Flanges

 

Flanges, Nominal Slip On Flange

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
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

 

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

 

2500 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
133.4
30.2
73.0
39.7
39.7
88.9
4
22
34.9
3/4
139.7
31.8
79.4
42.9
42.9
95.3
4
22
42.9
1
158.8
34.9
88.9
47.6
47.6
108.0
4
25
50.8
1-1/4
184.2
38.1
95.3
52.4
52.4
130.2
4
29
63.5
1-1/2
203.2
44.5
111.1
60.3
60.3
146.0
4
32
73.0
2
235.0
50.8
127.0
69.9
69.9
171.5
8
29
92.1
2-1/2
266.7
57.2
142.9
79.4
79.4
196.9
8
32
104.8
3
304.8
66.7
168.3
92.1
92.1
228.6
8
35
127.0
3-1/2
4
355.6
76.2
190.5
108.0
108.0
273.0
8
41
157.2
5
419.1
92.1
228.6
130.2
130.2
323.9
8
48
185.7
6
482.6
108.0
273.1
152.4
152.4
268.3
8
54
215.9
8
552.5
127.0
317.5
177.8
177.8
438.2
12
54
269.9
10
673.1
165.1
419.1
228.6
228.6
539.8
12
67
323.9
12
762.0
184.2
463.6
254.0
254.0
619.1
12
73
381.03
14
16
18
20
24

 

WELDING NECK FLANGE BORES

Nom.
pipe
Size
Outside
Diam
Light
Wall
6
Sched.
20
Sched.
30
Std.
Wall
Sched.
40
Sched.
60
Extra
Strong
Sched.
80
Sched.
100
Sched.
120
Sched.
140
Sched.
160
Double
Extra
Strong
1/2
3/4
1
0.840
1.050
1.315
.674
.884
1.097
…..
…..
….
…..
…..
….
0.622
0.824
1.049
0.622
0.824
1.049
…..
…..
….
0.546
0.742
0.957
0.546
0.742
0.957
…..
…..
….
…..
…..
….
…..
…..
….
0.464
0.612
0.815
0.252
0.434
0.599
1-1/4
1-1/2
2
1.660
1.900
2.375
1.442
1.682
2.157
…..
…..
….
…..
…..
….
1.380
1.610
2.067
1.380
1.610
2.067
…..
…..
….
1.278
1.500
1.939
1.278
1.500
1.939
…..
…..
….
…..
…..
….
…..
…..
….
1.160
1.338
1.687
0.896
1.100
1.503
2-1/2
3
3-1/2
2.875
3.500
4.000
2.635
3.260
3.760
…..
…..
….
…..
…..
….
2.469
3.068
3.548
2.469
3.068
3.548
…..
…..
….
2.323
2.900
3.364
2.323
2.900
3.364
…..
…..
….
….
….
….
…..
…..
….
2.125
2.624
….
1.771
2.300
2.728
4
5
6
8
4.500
5.563
6.625
8.625
4.260
5.295
6.357
8.329



8.125



8.071
4.026
5.047
6.065
7.981
4.026
5.047
6.065
7.981

….

7.813
3.826
4.813
5.761
7.625
3.826
4.813
5.761
7.625



7.437
3.624
4.563
5.501
7.187



7.001
3.438
4.313
5.187
6.813
3.152
4.063
4.897
6.875
10
12
14
16
10.750
12.750
14.000
16.000
10.420
12.390
13.500
15.500
10.250
12.250
13.376
15.376
10.136
12.090
13.250
15.250
10.020
12.000
13.250
15.250
10.020
11.938
13.124
15.000
9.750
11.626
12.812
14.688
9.750
11.750
13.000
15.000
9.562
11.374
12.500
14.312
9.312
11.062
12.124
13.938
0.062
10.750
11.814
13.564
8.750
10.500
11.500
13.124
8.500
10.500
11.500
13.124
8.750
10.750
….
….

18
20
24

18.000
20.000
24.000
17.500
19.500
23.500
17.376
19.250
23.250
17.124
19.000
22.876
17.250
19.250
23.250
16.876
18.812
22.624
16.500
18.376
22.062
17.000
19.000
23.000
16.124
17.938
21.562
15.688
17.438
20.938
15.250
17.000
20.376
14.876
16.500
19.876
14.438
16.062
19.312
….
….
….
30
36
42
30.000
36.000
42.000
29.376
35.376
……
29.000
35.000
28.750
34.750
29.250
35.250
41.250
….
34.500
….
….
…..
….
29.000
35.000
41.000
….
…..
….
….
…..
….
….
…..
….
….
…..
….
….
…..
….
….
…..
….

 

DIN 2576
FLANGES, SLIP-ON TYPE FOR BRITISH OR WELDING NOMINAL PRESSURE 10

 

DIN 2632
WELDING NECK FLANGES FOR NOMINAL PRESSURE 10

Pipe
Flange
Neck
Raised
face
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
f
h2
d4
f
No.
Thread
d2
200
216
340
24
295
62
232
5.9
10
16
268
3
8
M20
(3/4")
23
11.3
219.1
235
250
267
395
26
350
68
285
6.3
12
16
320
3
12
14.7
273
295
300
318
445
26
400
68
335
7.1
12
16
370
4
17.6
323.9
344
350
355.6
505
26
460
68
385
7.1
12
16
430
4
16
M24
(3/8")
27
368
21.4
400
406.4
565
26
515
72
440
7.1
12
16
482
4
419
26.1
500
508
670
28
620
75
542
7.1
12
16
585
4
20
521
34.7
600
609.6
780
28
725
80
642
7.1
12
18
685
5
M27
(1")
30
622
42.2

 

DIN 2633
WELDING NECK FLANGES NOMINAL PRESSURE 16

 

Pipe
Flange Neck
Raised
face
Bolts
Weight of 
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
r h2
d4
f
No.
Thread
d2
10
14
90
14
60
35
25
1.8
4 6
40
2
4
M12 (1/2") 14
0.580
17.2
28
15
20
95
14
65
35
30
2
4 6
45
2
0.648
21.3
32
20
25
105
16
85
38
42
2.3
4 6
58
2
0.952
26.9
45
25
30
115
16
85
38
42
2.6
4 6
68
2
1.14
33.7
45
32
38
140
16
100
40
52
2.6
4 6
78
2
M16

(5/8")

18

1.69
42.4
56
40
44.5
150
16
100
40
60
2.6
6 6
88
3
1.86
48.3
64
50
57
165
18
125
45
72
2.9
6 8
102
3
2.53
60.3
75
65
76.1
185
18
145
45
90
2.9
6 10
122
3
306
80
88.9
200
20
160
50
105
3.2
8 10
138
3
4/8
3.70
100
108
220
20
180
52
125
3.6
8 12
158
3
8
4.62
114.3
131
125
133
250
22
210
55
150
4
8 12
188
3
6.30
139.7
156
150
159
285
22
240
55
150
4
8 12
188
3
M20
(3/4")
23
7.75
168.3
156
175
191
315
24
270
60
208
5.4
10 12
242
3
8
M20(3/4")23
10.0
193.7
210
200
216
340
24
295
62
232
5.9
10 16
268
3
12
219.1
235
11.0
250
267
405
26
355
70
285
6.3
12 16
320
3
M24(7/8")27
15.6
273
292
300
318
460
28
410
78
388
7.1
12 16
378
4
22.0
323.9
344
350
355.6
520
30
470
82
390
8
12 16
438
4
16
368
28.7
400
406.4
580
32
525
85
445
8
12 16
490
4
M27
(1")
30
419
36.3
500
508
715
34
650
90
548
8
12 16
610
4
20
M30
(1-1/8")
33
521
59.3
600
609.6
840
36
770
95
652
8.8
12 18
725
5
M33
(1-1/4")
36
622
73.4
700
711.2
910
36
840
100
755
8.8
12 18
795
5
24
720
75.0
800
812.8
1025
38
950
105
855
10
12 20
900
5
M36
(1-3/8")
39
820
99.0
900
914.4
1125
40
1050
110
955
10
12 20
1000
5
28
920
119
1000
1016
1255
42
1170
120
1058
10
16 22
1115
5
M39
(1-1/2")
42
1020
159

 

DIN 2634
WELDING NECK FLANGE NOMINAL PRESSURE 25

Pipe
Flange
Neck
Raised
face
Bolts
Weight of
one flange
(7.85 kg/dm3)
kg.
NW
d1
D
b
k
h1
d3
s
r
h2
d4
f
No.
Thread
d2
175
(191)
330
28
280
75
215
5.6
10
15
248
3
12
M24
(7/8")
27
13.4
193.7
218
200
216
360
30
310
80
240
6.3
10
16
278
3
17.0
219.1
244
250
267
425
32
370
88
292
7.1
12
18
335
3
M27
(1")
30
24.4
273
298
300
318
485
34
430
92
345
8
12
18
395
4
16
323.9
352
31.2
350
355.6
555
38
490
100
398
8
12
20
450
4
M30
(1-1/8")
33
368
45.0
400
406.4
620
40
550
110
452
8.8
12
20
505
4
419
58.7
500
508
730
44
660
125
558
10
12
20
615
4
20
M33
(1-1/4")
36
521
86.1
600
609.6
845
46
770
125
660
11
12
20
720
5
M36
(1-3/8")
39
622
101

 

DIN 2642, DIN Connections
LOOSE FLANGE FOR FLANGE COLLAR PN 10

 

Nom
Pipe 
size
Flange
D
mm
d5
mm
b
mm
r
mm
k
mm

Drilling
Number

d2
mm
Weight
kg
Collar
g
mm
10
15
20
90
95
105
16
23
28

16
16
16

5
5
5

60
65
75
4
4
4

15
15
15

0.23
0.26
0.30
45
50
60

25
32
40

115
140
150
33
42
50
16
16
16

5
5
5

85
100
110

4
4
4

15
18
18
0.37
0.54
0.5
70
82
0.92
50
65
80
165
185
200
62
81
94
18
18
20

5
5
5

125
145
160

4
4
4

18
18
18
0.80
0.90
1.28
107
127
142
100
125
150
220
250
285
113
138
164
20
22
22

5
6
6

180
210
240
8
8
8
18
18
22
1.37
1.78
2.27
162
192
218
175
200
250
315
340
395
195
222
273
24
24
26

6
7
7

270
295
350
8
8
12
22
22
22
2.90
3.16
4.22
248
273
328
300
350
400
445
505
565
324
374
426
26
26
32

7
8
8

400
460
515
12
16
16
22
22
25
4.80
5.85
8.45
378
438
490
450
500
600
615
670
780
475
530
630
32
34
36

8
8
10

565
620
725
20
20
20
25
25
30
9.45
11.35
15.30
540
595
695
700
800
895
1015
730
832
40
44
10
10
840
950
24
24
30
34
21.40
30.50
810
916

 

DIN 2635
WELDING NECK FLANGES NOMINAL PRESSURE 40

 

Pipe
Flange
Neck
Raised
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
r
h2
d4
f
No.
Thread
d2
10
14
90
16
60
35
25
1.8
4
6
40
2
4
M12
(1/2")
14
0.661
17.2
28
15
20
95
16
65
38
30
2
4
6
45
2
0.746
21.3
32
20
25
105
18
75
40
38
2.3
4
6
58
2
106
26.9
40
25
30
115
18
85
40
42
2.6
4
6
68
2
1.29
33.7
46
32
38
140
18
100
42
52
2.6
6
6
78
2
1.88
42.4
56
40
44.5
150
18
110
45
60
2.6
6
7
88
3
2.33
48.3
64
50
57
165
20
125
48
72
2.9
6
8
102
3
M16
(5/8")
18
2.82
60.3
75
65
76.1
185
22
145
52
90
2.9
6
10
122
3
3.74
80
88.9
200
24
160
58
105
3.2
8
12
138
3
4.75
100
108
235
24
190
65
128
3.6
8
12
138
3
8
M20
(3/4")
23
6.52
114.3
134
125
133
270
26
220
68
155
4
8
12
188
3
8
M24
(7/8")
27
9.07
139.7
162
150
159
300
28
250
75
182
4.5
10
12
188
3
M24
(7/8")
11.8
168.3
192
175
191
350
32
295
82
215
5.6
10
16
285
3
12
M27
(1")
30
18.2
193.7
218
200
216
375
34
320
88
240
6.3
10
16
285
3
21.5
219.1
244
250
267
450
38
385
105
298
7.1
12
18
345
3
34.9
273
306
300
318
515
42
450
115
352
8
12
18
410
4
16
M30
(1-1/8")
33
49.7
323.9
362
350
355.6
580
46
510
125
408
8.8
12
20
460
4
M33
(1-1/4")
36
368
68.1
400
406.4
660
50
585
135
462
11
12
20
535
4
M36
(1-3/8")
39
419
96.5
500
508
755
52
670
140
562
14.2
12
20
615
4
20
M39
(1-1/2")
42
521
117