150 LB. Flanges





Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall         LengthBolt 
Circle
No. and
Size of
Holes
O.D. of
raised
face
Welding
neck
Slip-on
& socket
welding
Lap Joint
OQYDiam.No.dia.R
1/28911.247.615.915.960.541535
3/411715.957.225.425.482.541543
110814.355.617.517.579.541551
1.1/411715.957.220.620.689.041564
1.1/212717.561.922.222.298.541573
215219.163.525.425.4120.541992
2.1/217822.369.828.628.6139.5419105
319023.969.830.230.2152.5419127
3.1/221623.971.431.831.8178.0819140
422923.986.233.333.3190.5819157
525423.988.936.536.5216.0822186
627925.488.939.739.7241.5822216
834328.6101.644.444.4298.5822270
1040630.2101.649.249.2362.01225324
1248331.8114.355.655.6432.01225381
1453335.0127.057.279.4476.01229413
1659736.6127.063.587.3539.51629470
1863539.7139.768.396.8578.01632533
2069842.9144.573.0103.2635.02032584
2481347.7152.482.6111.1749.52035692




300 LB. FLANGES

Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall LengthBolt 
Circle
No. and 
Size of
Holes
O.D. of
raised
face
Welding 
neck
Slip-on
& socket
welding
Lap Joint
OQYDiam.No.dia.R
1/29514.352.422.222.2666.541535
3/411715.957.225.425.482.441943
112417.561.927.027.089.041951
1-1/413319.165.127.027.098.541964
1-1/215620.768.330.230.2114.542273
216522.369.833.333.3127.081992
2-1/219025.476.238.138.1149.0822105
321028.679.442.942.9168.0822127
425431885.747.647.6200.0822157
527935.098.450.850.8235.0822186
631336.698.452.452.4270.01222216
6381413111.161.991.9330.01225270
1044447.7117.566.795.3387.51629324
1252150.8130.273.0101.6451.01632381
1458454.0142.976.2111.1514.52032413
1664857.2146.082.6120.7571.52035470
1871160.4158.888.9130.2628.52435533
2077563.5161.995.2139.7686.02435584
2491469.9168.3106.4152.4843.02441692




600 LB. FLANGES


Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness of
flange
Overall LengthBolt CircleNo. and
Size of
Holes
O.D. of
raised
face
Welding neckSlip-on 
& socket
welding
Lap Joint
OQYDiam.No.dia.R
1/29514.352.422.222.266.541535
3/411715.957.225.425.482.541943
112417.561.927.027.089.041951
1-1/413320.766.728.628.698.541964
1-1/215622.369.831.831.8114.542273
216525.473.036.536.5127.081992
2-1/219028.679.441.341.3149.0822105
321031.882.646.046.0168.0822127
3-1/222935.085.749.249.2184.0825140
427338.1101.654.054.0216.0825157
533044.5114.360.360.3266.5829186
635647.7117.566.766.7292.01229216
841955.6133.476.276.2349.01232270
1050863.5152.485.7115.1432.01685324
1255966.7155.692.1111.1489.02035381
1460369.9165.193.7117.5527.02038413
1668676.2177.8106.4127.0603.02041470
1874382.6184.2117.6139.7654.02045533
2081388.9190.5127.0165.1724.02445584
24940101.6203.2139.7184.2838.02451692




900 LB. FLANGES


Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness of
flange
Overall LengthBolt
Circle
No. and 
Size of 
Holes
O.D. of
raised
face
Welding neckSlip-on

socket 
welding
Lap Joint
OQYDiam.No.dia.R
1/212122.360.331.831.882.542235
3/413025.469.834.934.989.042243
114928.678.041.341.3101.542551
1-1/415928.678.041.341.3111.042564
1-1/217831.882.644.444.4124.042978
221638.1101.657.257.2165.082592
2-1/224441.3104.863.563.5190.5829105
824138.1101.654.054.0190.5825127
3-1/2
429244.5114.369.869.8235.0832157
534950.8127.079.479.4279.5835186
638155.6189.785.785.7317.51232216
847068.5161.9101.8114.3393.51238270
1054669.9184.2108.0127.0470.01638324
1261079.4200.0117.5142.9533.52038381
1458454.0142.976.2111.1514.52032413
1671160.4158.888.9130.2628.52435533
2077563.5161.995.2139.7686.02435584
2491469.9168.3106.4152.4843.02441692




1500 LB. FLANGES


Normal
pipe
size
Outside
dia. of
flange
Minimum 
thickness
of flange
Overall          LengthBolt 
Circle
No. and
Size of 
Holes
O.D. 
of raised
face
Welding
neck
Slip-on

socket 
welding
Lap 
Joint
OQYDiam.No.dia.R
1/212.122.360.331.831.882.542235
3/413025.469.834.934.989.042243
114928.673.041.341.3101.542551
1-1/415928.673.041.341.3111.042564
1-1/217831.882.644.444.4124.042973
221638.1101.657.257.2165.082592
2-1/224441.3104.863.563.5190.5829105
326747.7117.573.073.0203.0832127
3-1/2
431154.0123.890.590.5241.5835157
537573.1155.5104.8104.8292.0841186
639482.6171.4119.1119.1317.51238216
848392.1212.7142.9142.9393.51245270
10584108.0254.0158.8177.8482.51251324
12673123.9282.9181.0219.1571.51654381
14749133.4298.4-----241.3635.01660413
16826146.1311.2-----260.4705.01651470
18914162.0327.0------276.2474.51673538
20984117.8355.4-----292.1832.01680584
241168203.2406.4-----330.2990.51692692



2500 LB. FLANGES


Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall          LengthBolt
Circle
No. and
Size of
Holes
O.D. of
raised
face
Welding
neck
Slip-on
&
socket
welding
Lap
Joint
OQYDiam.No.dia.R
1/2133.430.273.039.739.788.942234.9
3/4139.731.879.442.942.995.342242.9
1158.834.988.947.647.6108.042550.8
1-1/4184.238.195.352.452.4130.242963.5
1-1/2203.244.5111.160.360.3146.043273.0
2235.050.8127.069.969.9171.582992.1
2-1/2266.757.2142.979.479.4196.9832104.8
3304.866.7168.392.192.1228.6835127.0
3-1/2
4355.676.2190.5108.0108.0273.0841157.2
5419.192.1228.6130.2130.2323.9848185.7
6482.6108.0273.1152.4152.4268.3854215.9
8552.5127.0317.5177.8177.8438.21254269.9
10673.1165.1419.1228.6228.6539.81267323.9
12762.0184.2463.6254.0254.0619.11273381.03
14--------------------------
16--------------------------
18-------------------------
20-------------------------
24-------------------------




2527 LB. FLANGES


NWDFlangekRaised FaceNumberBoltsBoltsDia. of 
Bolt
Hole
Weight of
One Flange
(7.85 kg/dm3)
bd4fd2Type-B
kg
Type-C
kg
ND-610
15
20
75
80
90
12
12
14
50
55
65
35
40
50
2
2
2
4
4
4
M10
M10
M10
-
-
-
11.5
11.5
11.5
0.38
0.44
0.65
0.33
0.38
0.59
25
32
40
100
120
130
14
14
14
75
90
100
60
70
80
2
2
3
4
4
4
M10
M12
M12
-
(1/2")
(1/2")
11.5
14.0
14.0
0.82
1.17
1.39
0.74
1.07
1.21
50
65
80
140
160
190
14
14
16
110
130
150
90
110
128
3
3
3
4
4
4
M12
M12
M16
(1/2")
(1/2")
(3/8")
14
14
18
1.62
2.44
3.43
1.43
2.21
3.09
100
125
150
210
240
265
16
18
18
170
200
225
148
178
202
3
3
3
4
8
8
M16
M16
M16
(5/8")
(5/8")
(5/8")
18
18
18
4.76
6.11
7.51
4.37
5.68
7.02
(175)
200
250
295
320
375
20
20
22
255
280
335
232
258
312
3
3
3
8
8
12
M16
M16
M16
(5/8")
(5/8")
(5/8")
18
18
18
10.4
12.3
18.3
9.85
11.7
17.6
300
350
400
500
440
490
540
645
22
22
22
24
395
445
495
600
365
415
465
570
4
4
4
4
12
12
16
20
M20
M20
M20
M20
(3/4")
(3/4")
(3/4")
(3/4")
23
23
23
23
25.3
31.6
38.4
60.4
24.0
30.1
36.4
58.1
ND-10
(Note from 10 mm to 175 mm see ND-16
200
250
300
340
395
445
24
26
26
295
350
400
268
320
370
3
3
4
8
12
12
M20
M20
M20
(3/4")
(3/4")
(3/4")
23
23
23
16.5
24.0
30.9
15.6
23.1
29.4
350
400
500
505
565
670
26
26
28
460
515
620
430
482
585
4
4
4
16
16
20
M20
M24
M24
(3/4")
(3/4")
(3/4")
23
27
27
40.6
49.4
75.0
38.0
47.5
72.7
ND-16
Note : For DIN 2527 ND-10-4 Holes
10
15
20
90
95
105
14
14
16
60
65
75
40
45
58
2
2
2
4
4
4
M12
M12
M12
(1/2")
(1/2")
(1/2")
14
14
14
0.63
0.72
1.01
0.56
0.64
0.93
25
32
40
115
140
150
14
14
16
60
65
75
40
45
58
2
2
2
4
4
4
M12
M16
M16
(1/2")
(5/8")
(5/8")
14
18
18
1.23
1.80
2.09
1.13
1.66
1.85
50
65
80
165
185
200
18
18
20
125
145
160
102
122
138
3
3
3
4
4
4/8
M16
M16
M16
(5/8")
(5/8")
(5/8")
18
18
18
2.88
3.66
4.77
2.59
3.33
4.34
100
125
150
220
250
285
20
22
22
180
210
240
158
188
212
3
3
3
8
8
8
M16
M16
M16
(5/8")
(5/8")
(5/8")
18
18
18
2.88
3.66
4.77
2.59
3.33
4.34
100
125
150
220
250
285
20
22
22
180
210
240
158
188
212
3
3
3
8
8
8
M16
M16
M20
(5/8")
(5/8")
(3/4")
18
18
23
5.65
8.42
10.4
5.26
7.67
9.85
(175)
200
250
315
340
405
24
24
26
270
295
355
242
268
320
3
3
3
8
12
12
M20
M20
M20
(3/4") 
(3/4") 
(7/8")
23
23
27
14.0
16.1
24.9
13.5
15.6
23.9
300
350
400
460
520
580
28
30
32
410
470
525
378
438
490
4
4
4
12
16
16
M24
M24
M27
(7/8")
(7/8")
(1")
27
27
30
35.1
47.8
63.5
33.6
46.2
61.5
50071534650610420M30(1-1/8")3310299.5
ND-25
Note: From 10mm to 150 mm
see ND-40
(175)
200
250
330
360
425
28
30
32
280
310
370
248
278
335
3
3
3
12
12
12
M24
M24
M24
(7/8")
(7/8")
(1")
27
27
30
17.3
22.3
33.5
16.5
21.5
32.5
300
350
400
485
555
620
34
38
40
430
490
550
395
450
505
4
4
4
16
16
16
M27
M30
M33
(1")
(1-1/8")
(1- 1/4")
30
33
36
46.3
68.0
89.7
44.7
65.9
87.0
50073044660615420M33(1-1/4")36138134
ND-4010
15
20
90
95
105
16
16
16
60
65
75
40
45
58
2
2
2
4
4
4

M12
M12
M12

(1/2")
(1/2")
(1/2")
14
14
14
0.72
0.81
1.24
0.62
0.74
1.05
25
32
40
115
140
150
18
18
18
85
100
110
68
78
88
2
2
2
4
4
4
M12
M12
M12
(1/2")
(5/8")
(5/8")
14
18
18
1.38
2.03
2.35
1.31
1.82
2.11
50
65
80
165
185
200
20
22
24
125
145
160
102
122
138
3
3
3
4
8
8
M16
M16
M16
(5/8") 
(5/8") 
(5/8")
18
18
18
3.20
4.29
5.88
2.91
4.13
5.21
100
125
150
235
270
300
24
26
28
190
220
250
162
188
218
3
3
3
8
8
8
M20
M24
M24
(3/4")
(7/8") 
(7/8")
23
27
27
7.54
10.8
14.5
7.08
10.4
13.9
175
200
250
350
375
450
32
34
38
295
320
385
260
285
345
3
3
3
12
12
12
M27
M27
M27
(1")
(1")
(1-1/8")
30
30
30
22.1
27.2
43.8
21.3
26.2
43.1
300
350
400
515
580
660
42
46
50
450
510
585
410
465
535
4
4
4
16
16
16
M30
M33
M36
(1-1/8")
(1-1/8")
(1-1/8")
33
36
39
63.3
89.5
127
62.2
87.2
124
50075552670615420M39(1-1/2")42172168



DIN 2576

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


PipeFlange
BoltsWeight of
one flange
7.85 kg/
dm3) kg
NWd1dsDb1kNumberThreadd2
1014
17.2)
14.5
17.7
9014604M12(1/2")140.613
0.605
1520
21.3)
20.5
21.8
9514654M12(1/2")140675
0.669
2025
26.9)
25.5
27.4
10516754M12(1/2")140.947
0.936
2530
33.7)
30.5
34.2
11516854M12(1/2")141.14
1.11
3238
42.4)
38.5
42.9
140161004M16(5/8")181.66
1.62
4044.5
48.3)
45
48.8
150161104M16(5/8")181.89
1.86
5057
60.3)
57.5
60.8
165181254M16(5/8")182.51
2.47
6576.1)76.6185181454M16(5/8")183.00
8088.9)89.4200201604M16(5/8")183.79
100108
114.3)
108.5
114.8
220201808M16(5/8")184.20
4.03
125133
139.7)
133.5
140.2
250222108M16(5/8")185.71
5.46
150159
168.3)
159.5
168.8
285222108M16(3/4")236.72
6.57
175191
193.7)
192
194.7
315242708M20(3/4")238.60
8.45
200216
219.1)
216
220.1
340242958M20(3/4")239.50
9.31
250267
273)
268
274
3952635012M20(3/4")2312.5
11.9
400406.4
419
407.4
420
5653251516M24(7/8")2727.9
25.9
500508)
521
509
522
6703862020M24(7/8")2737.9
41.1




DIN 2632

FLANGES, SLIP-ON TYPE FOR BRITISH OR WELDING NOMINAL PRESSURE 1


PipeFlangeNeckRaised
face
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NWd1Dbkh1d3sfh2d4fNo.Threadd2
20021634024295622325.9101626838M20(3/4")2311.3
219.1235
25026739526350682856.3121632031214.7
273295
30031844526400683357.11216370417.6
323.9344
350355.650526460683857.11216430416M24(3/8")27
36821.4
400406.456526515724407.112164824
41926.1
50050867028620755427.11216585420
52134.7
600609.678028725806427.112186855M27(1")30
62242.2



DIN 2633

WELDING NECK FLANGES NOMINAL PRESSURE 16


PipeFlangeNeckRaised
face
BoltsWeight of 
one flange
7.85 kg/dm3)
kg
NWd1Dbkh1d3srh2d4fNo.Threadd2
101490146035251.8464024M12(1/2")140.580
17.228
152095146535302464520.648
21.332
2025105168538422.3465820.952
26.945
2530115168538422.6466821.14
33.745
32381401610040522.646782
M16
(5/8")
18
1.69
42.456
4044.51501610040602.6668831.86
48.364
50571651812545722.96810232.53
60.375
6576.11851814545902.96101223306
8088.920020160501053.281013834/83.70
10010822020180521253.68121583
8
4.62
114.3131
1251332502221055150481218836.30
139.7156
150159285222405515048121883M20(3/4")237.75
168.3156
17519131524270602085.4101224238
M20
(3/4")
23
10.0
193.7210
20021634024295622325.910162683
12
219.123511.0
25026740526355702856.312163203
M24
(7/8")
27
15.6
273292
30031846028410783887.11216378422.0
323.9344
350355.6520304708239081216438416
36828.7
400406.45803252585445812164904M27(1")30
41936.3
500508715346509054881216610420M30(1-1/8")33
52159.3
600609.684036770956528.812187255M33(1-1/4")36
62273.4
700711.2910368401007558.812187955
24
72075.0
800812.81025389501058551012209005M36(1-3/8")39
82099.0
900914.411254010501109551012201000528
920119
100010161255421170120105810162211155
M39(1-1/2")42
1020159



DIN 2634
WELDING NECK FLANGE NOMINAL PRESSURE 25

PipeFlangeNeckRaised
face
BoltsWeight of
one flange
(7.85 kg/dm3)
kg.
NWd1Dbkh1d3srh2d4fNo.Threadd2
175(191)33028280752155.61015248312
M24(7/8")2713.4
193.7218
20021636030310802406.31016278317.0
219.1244
25026742532370882927.112183353
M27
(1")
30
24.4
273298
300318485344309234581218395416
323.935231.2
350355.655538490100398812204504M30(1-1/8")33
36845.0
400406.4620405501104528.812205054
41958.7
500508730446601255581012206154
20
M33(1-1/4")36
52186.1
600609.6845467701256601112207205M36(1-3/8")39
622101



DIN 2635
WELDING NECK FLANGES NOMINAL PRESSURE 40

PipeFlangeNeckRaisedBoltsWeight of
one flange
7.85 kg/dm3)
kg
NWd1Dbkh1d3srh2d4fNo.Threadd2
101490166035251.8464024M12(1/2")140.661
17.228
15209516653830246452
0.746
21.332
2025105187540382.346582
106
26.940
2530115188540422.646682
1.29
33.746
32381401810042522.666782
1.88
42.456
4044.51501811045602.667883
2.33
48.364
50571652012548722.9681023
M16(5/8")182.82
60.375
6576.11852214552902.96101223
3.74
8088.920024160581053.28121383
4.75
10010823524190651283.681213838M20(3/4")236.52
114.3134
1251332702622068155481218838M24(7/8")279.07
139.7162
15015930028250751824.510121883
M24(7/8")
11.8
168.3192
17519135032295822155.61016285312M27(1")3018.2
193.7218
20021637534320882406.310162853
21.5
219.1244
250267450383851052987.112183453
34.9
273306
3003185154245011535281218410416M30(1-1/8")3349.7
323.9362
350355.6580465101254088.812204604
M33(1-1/4")36
36868.1
400406.4660505851354621112205354
M36(1-3/8")39
41996.5
5005087555267014056214.21220615420M39(1-1/2")42
521117



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