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Stainless steel flanges ASME B16.5-2013Class 150 / 300 / 600 / 900 / 1500 / 2500The ASME B16.5 standard sets specifications on circular flanges made of Class 150 and Class 2500 steel and with nominal dimensions NPS ½ to 24. It defines the types of flanges and their joint sizes, dimensions, tolerances, threads, bolt dimensions, conditions of joint faces of the flanges, marking, materials and relationships between pressure and temperature. |
Class 150
Class 150 Flange - DN 15 to 600 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of bore | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C1 | B1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 12,0 | 22,4 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 14,0 | 27,7 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 16,0 | 34,5 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 18,0 | 43,2 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 19,0 | 49,5 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 21,0 | 62,0 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 24,0 | 74,7 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 26,0 | 90,7 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 27,0 | 116,1 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 28,0 | 143,8 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 31,0 | 170,7 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 34,0 | 221.5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 38,0 | 276,4 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 42,0 | 327,2 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 43,0 | 359,2 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 48,0 | 410,5 |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 56,0 | 461,8 |
20 | 500 | 698 | 635,0 | 1 1/4(31,8) | 20 | 1 1/8 | 59,0 | 513,1 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 62,0 | 616,0 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C2 | G | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | - |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | - |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | - |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | - |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | - |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | - |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 38 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 51 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 76 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 102 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 127 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 200 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 225 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 279 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 311 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 362 |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 39,7 | 413 |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 463 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 565 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C2 | N | A | H3 | B3 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 21,3 | 47,6 | 15,8 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 38 | 26,7 | 52,4 | 20,8 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 49 | 33,4 | 55,6 | 26,7 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | 59 | 42,2 | 57,2 | 35,1 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | 65 | 48,3 | 61,9 | 40,9 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 78 | 60,3 | 63,5 | 52,6 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 90 | 73,0 | 69,9 | 62,7 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 108 | 88,9 | 69,9 | 78,0 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 114,3 | 76,2 | 102,4 | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 141,3 | 88,9 | 128,3 | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 168,3 | 88,9 | 154,2 | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 219,1 | 101,6 | 202,7 | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 273,0 | 101,6 | 254,5 | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 323,9 | 114,3 | 304,8 | 9,5 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 400 | 355,6 | 127,0 | To be specified by the buyer |
9,5 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 457 | 406,4 | 127,0 | 9,5 | |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 39,7 | 505 | 457,2 | 139,7 | 9,5 | |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 508,0 | 144,5 | 9,5 | |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 609,6 | 152,4 | 9,5 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C2 | N | H1 | B1 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 15,9 | 22,4 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 38 | 15,9 | 27,7 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 49 | 17,5 | 34,5 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | 59 | 20,6 | 43,2 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | 65 | 22,2 | 49,5 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 78 | 25,4 | 62,0 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 90 | 28,6 | 74,7 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 108 | 30,2 | 90,7 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 33,3 | 116,1 | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 36,5 | 143,8 | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 39,7 | 170,7 | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 44,5 | 221.5 | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 49,2 | 276,4 | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 55,6 | 327,2 | 9,5 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 400 | 57,2 | 359,2 | 9,5 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 457 | 63,5 | 410,5 | 9,5 |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 39,7 | 505 | 68,3 | 461,8 | 9,5 |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 73,0 | 513,1 | 9,5 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 82,6 | 616,0 | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Minimum thread length |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C2 | N | H1 | T | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 15,9 | 15,9 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 38 | 15,9 | 15,9 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 49 | 17,5 | 17,5 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | 59 | 20,6 | 20,6 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | 65 | 22,2 | 22,2 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 78 | 25,4 | 25,4 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 90 | 28,6 | 28,6 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 108 | 30,2 | 30,2 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 33,3 | 33,3 | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 36,5 | 36,5 | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 39,7 | 39,7 | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 44,5 | - | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 49,2 | - | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 55,6 | - | 9,5 |
14 | 350 | 533 | 476,2 | 11/8 (28,6) | 12 | 1 | 34,9 | 400 | 57,2 | - | 9,5 |
16 | 400 | 597 | 539,8 | 11/8 (28,6) | 16 | 1 | 36,5 | 457 | 63,5 | - | 9,5 |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 39,7 | 505 | 68,3 | - | 9,5 |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 73,0 | - | 9,5 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 82,6 | - | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Depth of the socket weld |
Joint radius of the neck (min.) |
||||
Ø of bolt holes |
Number | Nominal size |
Slip-on, socket weld and weld-on plate |
with neck to be butt-welded |
|||||||||
NPS | DN | D | K | L | C2 | N | H1 | B1 | B3 | U | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 15,9 | 22,4 | 15,8 | 9,5 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 38 | 15,9 | 27,7 | 20,8 | 11,0 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 49 | 17,5 | 34,5 | 26,7 | 12,5 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | 59 | 20,6 | 43,2 | 35,1 | 14,5 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | 65 | 22,2 | 49,5 | 40,9 | 16,0 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 78 | 25,4 | 62,0 | 52,6 | 17,5 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 90 | 28,6 | 74,7 | 62,7 | 19,0 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 108 | 30,2 | 90,7 | 78,0 | 20,5 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 33,3 | 116,1 | 102,4 | - | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 36,5 | 143,8 | 128,3 | - | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 39,7 | 170,7 | 154,2 | - | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 44,5 | 221.5 | 202,7 | - | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 49,2 | 276,4 | 254,5 | - | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 55,6 | 327,2 | 304,8 | - | 9,5 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 400 | 57,2 | 359,2 | To be specified by the buyer |
- | 9,5 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 457 | 63,5 | 410,5 | - | 9,5 | |
18 | 450 | 635 | 577,8 | 1 1/4(31,8) | 16 | 1 1/8 | 39,7 | 505 | 68,3 | 461,8 | - | 9,5 | |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 73,0 | 513,1 | - | 9,5 | |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 82,6 | 616,0 | - | 9,5 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C2 | N | H2 | B2 | r | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 15,9 | 23,0 | 3,0 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 38 | 15,9 | 28,0 | 3,0 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 49 | 17,5 | 35,0 | 3,0 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 15,9 | 59 | 20,6 | 43,5 | 5,0 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 17,5 | 65 | 22,2 | 50,0 | 6,5 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 78 | 25,4 | 62,5 | 8,0 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 22,2 | 90 | 28,6 | 75,5 | 8,0 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 23,8 | 108 | 30,2 | 91,5 | 9,5 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 33,3 | 117,0 | 11,0 | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 36,5 | 145,0 | 11,0 | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 39,7 | 171,0 | 12,5 | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 44,5 | 222,0 | 12,5 | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 49,2 | 277,0 | 12,5 | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 55,6 | 328,0 | 12,5 | 9,5 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 400 | 79,4 | 360,0 | 12,5 | 9,5 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 457 | 87,3 | 411,0 | 12,5 | 9,5 |
18 | 450 | 635 | 577,8 | 1 1/4 (31,8) | 16 | 1 1/8 | 39,7 | 505 | 96,8 | 462,0 | 12,5 | 9,5 |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 103,2 | 514,0 | 12,5 | 9,5 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 111,1 | 616.0 | 12,5 | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C3 | N | A | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | |||
1/2 | 15 | 89 | 60,3 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 30 | 21,3 | 3 |
3/4 | 20 | 98 | 69,8 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 38 | 26,7 | 3 |
1 | 25 | 108 | 79,4 | 5/8 (15,9) | 4 | 1/2 | 11,1 | 49 | 33,4 | 3 |
1 1/4 a) | 32 | 117 | 88,9 | 5/8 (15,9) | 4 | 1/2 | 12,7 | 59 | 42,2 | 3 |
1 1/2 | 40 | 127 | 98,4 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 65 | 48,3 | 3 |
2 | 50 | 152 | 120,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 78 | 60,3 | 3 |
2 1/2 a) | 65 | 178 | 139,7 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 90 | 73,0 | 3 |
3 | 80 | 190 | 152,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 108 | 88,9 | 3 |
4 | 100 | 229 | 190,5 | 3/4 (19,0) | 8 | 5/8 | 23,8 | 135 | 114,3 | 3 |
5 a) | 125 | 254 | 215,9 | 7/8 (22,2) | 8 | 3/4 | 23,8 | 164 | 141,3 | 6,5 |
6 | 150 | 279 | 241,3 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 192 | 168,3 | 6,5 |
8 | 200 | 343 | 298,4 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 246 | 219,1 | 6,5 |
10 | 250 | 406 | 362,0 | 1 (25,4) | 12 | 7/8 | 30,2 | 305 | 273,0 | 6,5 |
12 | 300 | 483 | 431,8 | 1 (25,4) | 12 | 7/8 | 31,8 | 365 | 323,9 | 9,5 |
14 | 350 | 533 | 476,2 | 1 1/8 (28,6) | 12 | 1 | 34,9 | 400 | 355,6 | 9,5 |
16 | 400 | 597 | 539,8 | 1 1/8 (28,6) | 16 | 1 | 36,5 | 457 | 406,4 | 9,5 |
18 | 450 | 635 | 577,8 | 1 1/4(31,8) | 16 | 1 1/8 | 39,7 | 505 | 457,2 | 9,5 |
20 | 500 | 698 | 635,0 | 1 1/4 (31,8) | 20 | 1 1/8 | 42,9 | 559 | 508,0 | 9,5 |
24 | 600 | 813 | 749,3 | 1 3/8 (34,9) | 20 | 1 1/4 | 47,6 | 664 | 609,6 | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 150 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
15 | 0,42 | 0,42 | 0,49 | 0,39 | 0,41 | 0,40 | 0,45 |
20 | 0,61 | 0,61 | 0,72 | 0,56 | 0,57 | 0,57 | 0,62 |
25 | 0,85 | 0,86 | 1,05 | 0,78 | 0,80 | 0,79 | 0,85 |
32 | 1,11 | 1,16 | 1,38 | 1,02 | 1,05 | 1,05 | 1,10 |
40 | 1,39 | 1,53 | 1,77 | 1,32 | 1,37 | 1,35 | 1,41 |
50 | 2,18 | 2,41 | 2,64 | 2,05 | 2,12 | 2,10 | 2,17 |
65 | 3,46 | 3,95 | 4,21 | 3,28 | 3,40 | 3,38 | 3,45 |
80 | 4,05 | 4,90 | 5,04 | 3,83 | 3,99 | 3,96 | 3,99 |
100 | 5,76 | 7,03 | 7,13 | 5,33 | 5,56 | - | 5,53 |
125 | 6,63 | 8,63 | 8,98 | 6,08 | 6,45 | - | 6,26 |
150 | 8,29 | 11,30 | 11,00 | 7,42 | 7,90 | - | 7,67 |
200 | 13,15 | 19,65 | 18,24 | 12,12 | - | 12,46 | |
250 | 18,39 | 28,74 | 24,94 | 16,46 | - | - | 16,87 |
300 | 29,89 | 43,43 | 38,28 | 26,28 | - | - | 26,89 |
350 | 37,48 | 57,99 | 50,35 | 34,49 | - | - | 39,47 |
400 | 50,52 | 76,05 | 62,55 | 44,85 | - | - | 51,75 |
450 | 58,99 | 93,72 | 71,07 | 48,89 | - | - | 57,13 |
500 | 72,86 | 122,27 | 87,56 | 61,77 | - | - | 71,59 |
600 | 96,74 | 185,27 | 119,59 | 87,17 | - | - | 99,52 |
Calculated masses of raised face flanges must be used only as a guide. |
Class 300
Class 300 Flange - DN 15 to 600 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C | G | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | - |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | - |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | - |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | - |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | - |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | - |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 38 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 51 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 76 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 102 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 127 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 200 |
10 | 250 | 444 | 387,4 | 11/8 (28,6) | 16 | 1 | 47,6 | 225 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 279 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 311 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 362 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 406 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 457 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 559 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | A | H3 | B3 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 21,3 | 52,4 | 15,8 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 26,7 | 57,2 | 20,8 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 33,4 | 61,9 | 26,7 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 42,2 | 65,1 | 35,1 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 48,3 | 68,3 | 40,9 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 60,3 | 69,9 | 52,6 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 73,0 | 76,2 | 62,7 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 88,9 | 79,4 | 78,0 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 114,3 | 85,7 | 102,4 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 141,3 | 98,4 | 128,3 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 168,3 | 98,4 | 154,2 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 219,1 | 111,1 | 202,7 | 6,5 |
10 | 250 | 444 | 387,4 | 1 1/8 (28,6) | 16 | 1 | 47,6 | 321 | 273,0 | 117,5 | 254,5 | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 323,9 | 130,2 | 304,8 | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 355,6 | 142,9 | To be specified by the buyer |
9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 406,4 | 146,1 | 9,5 | |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 457,2 | 158,8 | 9,5 | |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 508,0 | 162,0 | 9,5 | |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 609,6 | 168,3 | 9,5 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 22,4 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 27,7 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 34,5 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 27,0 | 43,2 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 30,2 | 49,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 33,3 | 62,0 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 38,1 | 74,7 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 42,9 | 90,7 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 47,6 | 116,1 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 50,8 | 143,8 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 52,4 | 170,7 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 61,9 | 221,5 | 6,5 |
10 | 250 | 444 | 387,4 | 1 1/8 (28,6) | 16 | 1 | 47,6 | 321 | 66,8 | 276,4 | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 73,0 | 327,2 | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 76,2 | 359,2 | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 82,6 | 410,5 | 9,5 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 88,9 | 461,8 | 9,5 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 95,3 | 513,1 | 9,5 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 106,4 | 616,0 | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Minimum thread length |
mini Ø countersink |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H1 | T | V | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 16 | 23,5 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 16 | 29,0 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 17 | 36,0 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 27,0 | 21 | 44,5 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 30,2 | 22 | 50,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 33,3 | 29 | 63,5 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 38,1 | 32 | 76,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 42,9 | 32 | 92,0 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 47,6 | 37 | 118,0 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 50,8 | 43 | 145,0 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 52,4 | 46 | 171,0 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 61,9 | - | - | 6,5 |
10 | 250 | 444 | 387,4 | 11/8 (28,6) | 16 | 1 | 47,6 | 321 | 66,8 | - | - | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 73,0 | - | - | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 76,2 | - | - | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 82,6 | - | - | 9,5 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 88,9 | - | - | 9,5 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 95,3 | - | - | 9,5 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 106,4 | - | - | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Depth of the socket weld |
Joint radius of the neck (min.) |
||||
Ø of bolt holes |
Number | Nominal size |
Slip-on, socket weld and weld-on plate |
with neck to be butt-welded |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | B3 | U | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 22,4 | 15,8 | 9,5 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 27,7 | 20,8 | 11,0 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 34,5 | 26,7 | 12,5 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 27,0 | 43,2 | 35,1 | 14,5 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 30,2 | 49,5 | 40,9 | 16,0 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 33,3 | 62,0 | 52,6 | 17,5 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 38,1 | 74,7 | 62,7 | 19,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 42,9 | 90,7 | 78,0 | 20,5 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 47,6 | 116,1 | 102,4 | - | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 50,8 | 143,8 | 128,3 | - | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 52,4 | 170,7 | 154,2 | - | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 61,9 | 221,5 | 202,7 | - | 6,5 |
10 | 250 | 444 | 387,4 | 11/8 (28,6) | 16 | 1 | 47,6 | 321 | 66,8 | 276,4 | 254,5 | - | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 73,0 | 327,2 | 304,8 | - | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 76,2 | 359,2 | To be specified by the buyer |
- | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 82,6 | 410,5 | - | 9,5 | |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 88,9 | 461,8 | - | 9,5 | |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 95,3 | 513,1 | - | 9,5 | |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 106,4 | 616,0 | - | 9,5 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H2 | B2 | r | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 23,0 | 3,0 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 28,0 | 3,0 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 35,0 | 3,0 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 27,0 | 43,5 | 5,0 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 30,2 | 50,0 | 6,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 33,3 | 62,5 | 8,0 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 38,1 | 75,5 | 8,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 42,9 | 91,5 | 9,5 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 47,6 | 117,0 | 9,5 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 50,8 | 145,0 | 11,0 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 52,4 | 171,0 | 12,5 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 61,9 | 222,0 | 12,5 | 6,5 |
10 | 250 | 444 | 387,4 | 1 1/8 (28,6) | 16 | 1 | 47,6 | 321 | 95,3 | 277,0 | 12,5 | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 101,6 | 328,0 | 12,5 | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 111,1 | 360,0 | 12,5 | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 120,7 | 411,0 | 12,5 | 9,5 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 130,2 | 462,0 | 12,5 | 9,5 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 139,7 | 514,0 | 12,5 | 9,5 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 152,4 | 616,0 | 12,5 | 9,5 |
aa) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | A | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 21,3 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 26,7 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 33,4 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 42,2 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 48,3 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 60,3 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 73,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 88,9 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 114,3 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 141,3 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 168,3 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 219,1 | 6,5 |
10 | 250 | 444 | 387,4 | 1 1/8 (28,6) | 16 | 1 | 47,6 | 321 | 273,0 | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 323,9 | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 355,6 | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 406,4 | 9,5 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 457,2 | 9,5 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 508,0 | 9,5 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 609,6 | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 300 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
15 | - | 0,64 | 0,77 | 0,64 | 0,66 | 0,66 | 0,70 |
20 | - | 1,10 | 1,30 | 1,11 | 1,13 | 1,14 | 1,21 |
25 | - | 1,39 | 1,64 | 1,36 | 1,40 | 1,41 | 1,47 |
32 | - | 1,78 | 2,09 | 1,67 | 1,72 | 1,72 | 1,79 |
40 | - | 2,67 | 3,00 | 2,51 | 2,57 | 2,57 | 2,66 |
50 | - | 3,17 | 3,52 | 2,87 | 2,96 | 2,97 | 3,01 |
65 | - | 4,83 | 5,32 | 4,30 | 4,46 | 4,49 | 4,48 |
80 | - | 6,84 | 7,19 | 5,87 | 6,10 | 6,17 | 6,07 |
100 | - | 11,52 | 11,63 | 9,64 | 9,98 | - | 9,94 |
125 | - | 15,51 | 15,52 | 12,14 | 12,65 | - | 12,42 |
150 | - | 20,95 | 19,91 | 15,69 | 16,32 | - | 16,14 |
200 | - | 34,35 | 30,89 | 24,21 | - | - | 24,77 |
250 | - | 53,23 | 44,34 | 33,97 | - | - | 39,23 |
300 | - | 78,86 | 64,04 | 49,92 | - | - | 56,60 |
350 | - | 105,40 | 89,10 | 69,51 | - | - | 81,63 |
400 | - | 137,77 | 111,00 | 88,49 | - | - | 105,12 |
450 | - | 175,18 | 136,08 | 108,38 | - | - | 128,16 |
500 | - | 221,43 | 164,68 | 134,30 | - | - | 158,03 |
600 | - | 338,78 | 238,07 | 201,06 | - | - | 236,32 |
Calculated masses of raised face flanges must be used only as a guide. |
Class 600
Class 600 Flange - DN 15 to 600 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C | G | ||
mm | mm | in (mm) | in | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | - |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | - |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | - |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | - |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | - |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | - |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 38 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 51 |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 76 |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 102 |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 127 |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 175 |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 222 |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 273 |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 302 |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 349 |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 394 |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 438 |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 533 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | A | B3 | R1 | ||
mm | mm | in (mm) | in | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 21,3 | To be specified by the buyer |
3 |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 26,7 | 3 | |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 33,4 | 3 | |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | 64 | 42,2 | 3 | |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 70 | 48,3 | 3 | |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | 84 | 60,3 | 3 | |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 100 | 73,0 | 3 | |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 117 | 88,9 | 3 | |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 152 | 114,3 | 3 | |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 189 | 141,3 | 6,5 | |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 222 | 168,3 | 6,5 | |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 273 | 219,1 | 6,5 | |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 343 | 273,0 | 6,5 | |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 400 | 323,9 | 11 | |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 432 | 355,6 | 11 | |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 495 | 406,4 | 11 | |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 546 | 457,2 | 11 | |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 610 | 508,0 | 11 | |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 718 | 609,6 | 11 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | R1 | ||
mm | mm | in (mm) | in | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 22,4 | 3 |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 27,7 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 34,5 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | 64 | 28,6 | 43,2 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 70 | 31,8 | 49,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | 84 | 36,5 | 62,0 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 100 | 41,3 | 74,7 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 117 | 46,0 | 90,7 | 3 |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 152 | 54,0 | 116,1 | 3 |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 189 | 60,3 | 143,8 | 6,5 |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 222 | 66,8 | 170,7 | 6,5 |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 273 | 76,2 | 221,5 | 6,5 |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 343 | 85,7 | 276,4 | 6,5 |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 400 | 92,1 | 327,2 | 11 |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 432 | 93,7 | 359,2 | 11 |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 495 | 106,4 | 410,5 | 11 |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 546 | 117,5 | 461,8 | 11 |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 610 | 127,0 | 513,1 | 11 |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 718 | 139,7 | 616,0 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Minimum thread length |
mini Ø countersink |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H1 | T | V | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 16 | 23,5 | 3 |
3/4 | 20 | 117 | 82,6 | 5/8 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 16 | 29,0 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 17 | 36,0 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 27,0 | 21 | 44,5 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 30,2 | 22 | 50,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 33,3 | 29 | 63,5 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 38,1 | 32 | 76,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 42,9 | 32 | 92,0 | 3 |
4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 47,6 | 37 | 118,0 | 3 |
5 a) | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 50,8 | 43 | 145,0 | 6,5 |
6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 52,4 | 46 | 171,0 | 6,5 |
8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 61,9 | - | - | 6,5 |
10 | 250 | 444 | 387,4 | 11/8 (28,6) | 16 | 1 | 47,6 | 321 | 66,8 | - | - | 6,5 |
12 | 300 | 521 | 450,8 | 1 1/4 (31,8) | 16 | 11/8 | 50,8 | 375 | 73,0 | - | - | 9,5 |
14 | 350 | 584 | 514,4 | 1 1/4 (31,8) | 20 | 11/8 | 54,0 | 425 | 76,2 | - | - | 9,5 |
16 | 400 | 648 | 571,5 | 1 3/8 (34,9) | 20 | 1 1/4 | 57,2 | 483 | 82,6 | - | - | 9,5 |
18 | 450 | 711 | 628,6 | 1 3/8 (34,9) | 24 | 1 1/4 | 60,3 | 533 | 88,9 | - | - | 9,5 |
20 | 500 | 775 | 685,8 | 1 3/8 (34,9) | 24 | 1 1/4 | 63,5 | 587 | 95,3 | - | - | 9,5 |
24 | 600 | 914 | 812,8 | 1 5/8 (41,3) | 24 | 1 1/2 | 69,8 | 702 | 106,4 | - | - | 9,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Depth of the socket weld |
Joint radius of the neck (min.) |
||||
Ø of bolt holes |
Number | Nominal size |
Slip-on, socket weld and weld-on plate |
With neck to be butt-welded |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | B3 | U | R1 | ||
mm | mm | in (mm) | in | mm | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 22,4 | To be specified by the buyer |
9,5 | 3 |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 27,7 | 11,0 | 3 | |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 34,5 | 12,5 | 3 | |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | 64 | 28,6 | 43,2 | 14,5 | 3 | |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 70 | 31,8 | 49,5 | 16,0 | 3 | |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | 84 | 36,5 | 62,0 | 17,5 | 3 | |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 100 | 41,3 | 74,7 | 19,0 | 3 | |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 117 | 46,0 | 90,7 | 20,5 | 3 | |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 152 | 54,0 | 116,1 | - | 3 | |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 189 | 60,3 | 143,8 | - | 6,5 | |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 222 | 66,8 | 170,7 | - | 6,5 | |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 273 | 76,2 | 221,5 | - | 6,5 | |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 343 | 85,7 | 276,4 | - | 6,5 | |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 400 | 92,1 | 327,2 | - | 11 | |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 432 | 93,7 | 359,2 | - | 11 | |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 495 | 106,4 | 410,5 | - | 11 | |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 546 | 117,5 | 461,8 | - | 11 | |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 610 | 127,0 | 513,1 | - | 11 | |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 718 | 139,7 | 616,0 | - | 11 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H2 | B2 | r | R1 | ||
mm | mm | in (mm) | in | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 22,2 | 23,0 | 3,0 | 3 |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 25,4 | 28,0 | 3,0 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 27,0 | 35,0 | 3,0 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | 64 | 28,6 | 43,5 | 5,0 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 70 | 31,8 | 50,0 | 6,5 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | 84 | 36,5 | 62,5 | 8,0 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 100 | 41,3 | 75,5 | 8,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 117 | 46,0 | 91,5 | 9,5 | 3 |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 152 | 54,0 | 117,0 | 9,5 | 3 |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 189 | 60,3 | 145,0 | 11,0 | 6,5 |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 222 | 66,8 | 171,0 | 12,5 | 6,5 |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 273 | 76,2 | 222,0 | 12,5 | 6,5 |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 343 | 111,1 | 277,0 | 12,5 | 6,5 |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 400 | 117,5 | 328,0 | 12,5 | 11 |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 432 | 127,0 | 360,0 | 12,5 | 11 |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 495 | 139,7 | 411,0 | 12,5 | 11 |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 546 | 151,4 | 462,0 | 12,5 | 11 |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 610 | 165,1 | 514,0 | 12,5 | 11 |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 718 | 184,2 | 616,0 | 12,5 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | A | R1 | ||
mm | mm | in (mm) | in | mm | mm | mm | mm | |||
1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 21,3 | 3 |
3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 26,7 | 3 |
1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 33,4 | 3 |
1 1/4 a) | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 20,6 | 64 | 42,2 | 3 |
1 1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 70 | 48,3 | 3 |
2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 25,4 | 84 | 60,3 | 3 |
2 1/2 a) | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 100 | 73,0 | 3 |
3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 117 | 88,9 | 3 |
4 | 100 | 273 | 215,9 | 1 (25,4) | 8 | 7/8 | 38,1 | 152 | 114,3 | 3 |
5 a) | 125 | 330 | 266,7 | 1 1/8 (28,6) | 8 | 1 | 44,4 | 189 | 141,3 | 6,5 |
6 | 150 | 356 | 292,1 | 1 1/8 (28,6) | 12 | 1 | 47,6 | 222 | 168,3 | 6,5 |
8 | 200 | 419 | 349,2 | 1 1/4(31,8) | 12 | 11/8 | 55,6 | 273 | 219,1 | 6,5 |
10 | 250 | 508 | 431,8 | 1 7/8 (34,9) | 16 | 11/4 | 63,5 | 343 | 273,0 | 6,5 |
12 | 300 | 559 | 489,0 | 1 3/8 (34,9) | 20 | 11/4 | 66,7 | 400 | 323,9 | 11 |
14 | 350 | 603 | 527,0 | 1 1/2 (38,1) | 20 | 13/8 | 69,8 | 432 | 355,6 | 11 |
16 | 400 | 686 | 603,2 | 1 5/8 (41,3) | 20 | 11/2 | 76,2 | 495 | 406,4 | 11 |
18 | 450 | 743 | 654,0 | 1 3/4 (44,4) | 20 | 15/8 | 82,6 | 546 | 457,2 | 11 |
20 | 500 | 813 | 723,9 | 1 3/4 (44,4) | 24 | 15/8 | 88,9 | 610 | 508,0 | 11 |
24 | 600 | 940 | 838,2 | 2 (50,8) | 24 | 17/8 | 101,6 | 718 | 609,6 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 600 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
15 | - | 0,76 | 0,89 | 0,74 | 0,76 | 0,76 | 0,70 |
20 | - | 1,27 | 1,49 | 1,26 | 1,29 | 1,29 | 1,21 |
25 | - | 1,61 | 1,88 | 1,53 | 1,57 | 1,58 | 1,47 |
32 | - | 2,22 | 2,55 | 2,02 | 2,08 | 2,09 | 1,93 |
40 | - | 3,27 | 3,62 | 2,99 | 3,06 | 3,08 | 2,86 |
50 | - | 4,14 | 4,49 | 3,61 | 3,73 | 3,78 | 3,42 |
65 | - | 6,10 | 6,61 | 5,24 | 5,44 | 5,53 | 5,00 |
80 | - | 8,51 | 8,85 | 7,05 | 7,33 | 7,49 | 6,70 |
100 | - | 17,27 | 17,92 | 14,51 | 14,94 | - | 14,00 |
125 | - | 29,38 | 30,01 | 24,38 | 25,05 | - | 23,70 |
150 | - | 36,15 | 36,20 | 28,84 | 29,71 | - | 28,10 |
200 | - | 58,89 | 55,59 | 43,37 | - | - | 42,33 |
250 | - | 97,54 | 89,52 | 70,26 | - | - | 75,37 |
300 | - | 124,21 | 107,02 | 84,25 | - | - | 90,66 |
350 | - | 151,00 | 126,83 | 98,87 | - | - | 108,32 |
400 | - | 213,77 | 176,16 | 142,20 | - | - | 155,50 |
450 | - | 272,28 | 210,79 | 173,52 | - | - | 188,28 |
500 | - | 349,81 | 262,82 | 220,69 | - | - | 242,23 |
600 | - | 533,60 | 368,57 | 312,90 | - | - | 346,29 |
Calculated masses of raised face flanges must be used only as a guide. |
Class 900
Class 900 Flange - DN 80 to 600 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C | G | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | ||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 48 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 73 |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 95 |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 121 |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 165 |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 213 |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 257 |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 286 |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 381 |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 419 |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 451 |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 508 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | A | H3 | B3 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | ||||||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 127 | 88,9 | 101,6 | To be specified by the buyer |
3 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 159 | 114,3 | 114,3 | 5 | |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 190 | 141,3 | 127,0 | 6,5 | |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 235 | 168,3 | 139,7 | 6,5 | |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 298 | 219,1 | 162,0 | 6,5 | |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 368 | 273,0 | 184,2 | 6,5 | |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 419 | 323,9 | 200,0 | 9,5 | |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 451 | 355,6 | 212,8 | 11,5 | |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 508 | 406,4 | 215,9 | 11 | |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 565 | 457,2 | 228,6 | 11 | |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 622 | 508,0 | 247,7 | 11 | |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 749 | 609,6 | 292,1 | 11 | |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | |||||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 127 | 54,0 | 90,7 | 3 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 159 | 69,9 | 116,1 | 5 |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 190 | 79,4 | 143,8 | 6,5 |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 235 | 85,7 | 170,7 | 6,5 |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 298 | 101,6 | 221,5 | 6,5 |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 368 | 108,0 | 276,4 | 6,5 |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 419 | 117,5 | 327,2 | 9,5 |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 451 | 130,2 | 359,2 | 11,5 |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 508 | 133,4 | 410,5 | 11 |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 565 | 152,4 | 461,8 | 11 |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 622 | 158,8 | 513,1 | 11 |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 749 | 203,2 | 616,0 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Minimum thread length |
Mini Ø countersink |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H1 | T | V | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | ||||||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 127 | 54,0 | 41 | 92 | 3 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 159 | 69,9 | 48 | 118 | 5 |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 190 | 79,4 | 54 | 145 | 6,5 |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 235 | 85,7 | 57 | 171 | 6,5 |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 298 | 101,6 | - | - | 6,5 |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 368 | 108,0 | - | - | 6,5 |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 419 | 117,5 | - | - | 9,5 |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 451 | 130,2 | - | - | 11,5 |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 508 | 133,4 | - | - | 11 |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 565 | 152,4 | - | - | 11 |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 622 | 158,8 | - | - | 11 |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 749 | 203,2 | - | - | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H2 | B2 | r | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | ||||||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 127 | 54,0 | 91,5 | 9,5 | 3 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 159 | 69,9 | 117,0 | 11,0 | 5 |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 190 | 79,4 | 145,0 | 11,0 | 6,5 |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 235 | 85,7 | 171,0 | 12,5 | 6,5 |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 298 | 114,3 | 222,0 | 12,5 | 6,5 |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 368 | 127,0 | 277,0 | 12,5 | 6,5 |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 419 | 142,9 | 328,0 | 12,5 | 9,5 |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 451 | 155,6 | 360,0 | 12,5 | 11,5 |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 508 | 165,1 | 411,0 | 12,5 | 11 |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 565 | 190,5 | 462,0 | 12,5 | 11 |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 622 | 209,6 | 514,0 | 12,5 | 11 |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 749 | 266,7 | 616,0 | 12,5 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | A | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | |||
For DN 1/2 to 2 1/2 see flanges Class 1500 | ||||||||||
3 | 80 | 241 | 190,5 | 1 (25,4) | 8 | 7/8 | 38,1 | 127 | 88,9 | 3 |
4 | 100 | 292 | 235,0 | 1 1/4 (31,8) | 8 | 1 1/8 | 44,4 | 159 | 114,3 | 5 |
5 a) | 125 | 349 | 279,4 | 1 3/8 (34,9) | 8 | 1 1/4 | 50,8 | 190 | 141,3 | 6,5 |
6 | 150 | 381 | 317,5 | 1 1/4 (31,8) | 12 | 1 1/8 | 55,6 | 235 | 168,3 | 6,5 |
8 | 200 | 470 | 393,7 | 1 1/2 (38,1) | 12 | 1 3/8 | 63,5 | 298 | 219,1 | 6,5 |
10 | 250 | 546 | 469,9 | 1 1/2 (38,1) | 16 | 1 3/8 | 69,8 | 368 | 273,0 | 6,5 |
12 | 300 | 610 | 533,4 | 1 1/2 (38,1) | 20 | 1 3/8 | 79,4 | 419 | 323,9 | 9,5 |
14 | 350 | 641 | 558,8 | 1 5/8 (41,3) | 20 | 1 1/8 | 85,7 | 451 | 355,6 | 11,5 |
16 | 400 | 705 | 616,0 | 1 3/4 (44,4) | 20 | 1 5/8 | 88,9 | 508 | 406,4 | 11 |
18 | 450 | 787 | 685,8 | 2 (50,8) | 20 | 1 7/8 | 101,6 | 565 | 457,2 | 11 |
20 | 500 | 857 | 749,3 | 2 1/8 (54,0) | 20 | 2 | 108,0 | 622 | 508,0 | 11 |
24 | 600 | 1 041 | 901,7 | 2 5/8 (66,7) | 20 | 2 1/2 | 139,7 | 749 | 609,6 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 900 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
80 | - | 13,07 | 14,02 | 11,58 | 11,91 | - | 11,22 |
100 | - | 22,10 | 23,12 | 19,73 | 20,27 | - | 19,20 |
125 | - | 36,46 | 37,05 | 31,88 | 32,75 | - | 31,17 |
150 | - | 47,44 | 49,23 | 41,14 | 42,25 | - | 40,40 |
200 | - | 82,53 | 84,17 | 70,72 | - | - | 72,75 |
250 | - | 122,44 | 122,85 | 100,45 | - | - | 105,98 |
300 | - | 173,67 | 162,88 | 133,13 | - | - | 141,89 |
350 | - | 206,09 | 186,20 | 153,24 | - | - | 162,40 |
400 | - | 259,52 | 224,24 | 185,08 | - | - | 200,10 |
450 | - | 366,87 | 301,27 | 258,06 | - | - | 279,92 |
500 | - | 463,67 | 373,75 | 316,70 | - | - | 351,14 |
600 | - | 875,65 | 681,13 | 604,92 | - | - | 672,06 |
Calculated masses of raised face flanges must be used only as a guide. |
Class 1500
Class 1500 Flange - DN 15 to 600 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C | G | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | - |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | - |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | - |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | - |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | - |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | - |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 32 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 44 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 66 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 86 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 111 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 152 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 197 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 238 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 263 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 305 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 346 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 390 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 473 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Height of the neck |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | A | H3 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 21,3 | 60,3 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 26,7 | 69,9 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 33,4 | 73,0 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 42,2 | 73,0 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 48,3 | 82,6 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 60,3 | 101,6 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 73,0 | 104,8 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 88,9 | 117,5 | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 114,3 | 123,8 | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 141,3 | 155,6 | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 168,3 | 171,5 | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 219,1 | 212,7 | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 273,0 | 254,0 | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 323,9 | 282,6 | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | 355,6 | 298,5 | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | 406,4 | 311,2 | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | 457,2 | 327,0 | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | 508,0 | 355,6 | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | 609,6 | 406,4 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 31,8 | 22,4 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 34,9 | 27,7 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 41,3 | 34,5 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 41,3 | 43,2 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 44,5 | 49,5 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 57,2 | 62,0 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 63,5 | 74,7 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 73,0 | - | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 90,5 | - | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 104,8 | - | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 119,1 | - | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 142,9 | - | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 158,8 | - | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 181,0 | - | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | - | - | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | - | - | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | - | - | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | - | - | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | - | - | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Minimum thread length |
Mini Ø countersink |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H1 | T | V | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 31,8 | 22 | 23,5 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 34,9 | 25 | 29,0 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 41,3 | 29 | 36,0 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 41,3 | 30 | 44,5 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 44,5 | 32 | 50,5 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 57,2 | 38 | 63,5 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 63,5 | 48 | 76,0 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 73,0 | 51 | 92,0 | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 90,5 | 57 | 118,0 | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 104,8 | 64 | 145,0 | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 119,1 | 70 | 171,0 | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 142,9 | - | - | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 158,8 | - | - | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 181,0 | - | - | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | - | - | - | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | - | - | - | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | - | - | - | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | - | - | - | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | - | - | - | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Depth of the socket weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H1 | B1 | U | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 31,8 | 22,4 | 9,5 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 34,9 | 27,7 | 11,0 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 41,3 | 34,5 | 12,5 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 41,3 | 43,2 | 14,5 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 44,5 | 49,5 | 16,0 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 57,2 | 62,0 | 17,5 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 63,5 | 74,7 | 19,0 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 73,0 | - | - | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 90,5 | - | - | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 104,8 | - | - | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 119,1 | - | - | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 142,9 | - | - | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 158,8 | - | - | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 181,0 | - | - | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | - | - | - | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | - | - | - | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | - | - | - | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | - | - | - | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | - | - | - | 11 |
a) It is useful to avoid using these dimensions in new constructions. B3 : To be specified by the buyer |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Ø of bore | Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||||
NPS | DN | D | K | L | C | N | H2 | B2 | r | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 31,8 | 23,0 | 3,0 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 34,9 | 28,0 | 3,0 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 41,3 | 35,0 | 3,0 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 41,3 | 43,5 | 5,0 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 44,5 | 50,0 | 6,5 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 57,2 | 62,5 | 8,0 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 63,5 | 75,5 | 8,0 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 73,0 | 91,5 | 9,5 | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 90,5 | 117,0 | 11,0 | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 104,8 | 145,0 | 11,0 | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 119,1 | 171,0 | 12,5 | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 142,9 | 222,0 | 12,5 | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 177,8 | 277,0 | 12,5 | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 219,1 | 328,0 | 12,5 | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | 241,3 | 360,0 | 12,5 | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | 260,4 | 411,0 | 12,5 | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | 276,2 | 462,0 | 12,5 | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | 292,1 | 514,0 | 12,5 | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | 330,2 | 616,0 | 12,5 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | A | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | Mm | |||
1/2 | 15 | 121 | 82,6 | 7/8 (22,2) | 4 | 3/4 | 22,2 | 38 | 21,3 | 5 |
3/4 | 20 | 130 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 25,4 | 44 | 26,7 | 5 |
1 | 25 | 149 | 101,6 | 1 (25,4) | 4 | 7/8 | 28,6 | 52 | 33,4 | 5 |
1 1/4 a) | 32 | 159 | 111,1 | 1 (25,4) | 4 | 7/8 | 28,6 | 64 | 42,2 | 5 |
1 1/2 | 40 | 178 | 123,8 | 1 1/8 (28,6) | 4 | 1 | 31,8 | 70 | 48,3 | 5 |
2 | 50 | 216 | 165,1 | 1 (25,4) | 8 | 7/8 | 38,1 | 105 | 60,3 | 5 |
2 1/2 a) | 65 | 244 | 190,5 | 1 1/8 (28,6) | 8 | 1 | 41,3 | 124 | 73,0 | 5 |
3 | 80 | 267 | 203,2 | 1 1/4 (31,8) | 8 | 11/8 | 47,6 | 133 | 88,9 | 5 |
4 | 100 | 311 | 241,3 | 1 3/8 (34,9) | 8 | 11/4 | 54,0 | 162 | 114,3 | 5 |
5 a) | 125 | 375 | 292,1 | 1 5/8 (41,3) | 8 | 11/2 | 73,0 | 197 | 141,3 | 6,5 |
6 | 150 | 394 | 317,5 | 1 1/2 (38,1) | 12 | 13/8 | 82,6 | 229 | 168,3 | 6,5 |
8 | 200 | 483 | 393,7 | 1 3/4 (44,4) | 12 | 15/8 | 92,1 | 292 | 219,1 | 6,5 |
10 | 250 | 584 | 482,6 | 2 (50,8) | 12 | 17/8 | 108,0 | 368 | 273,0 | 9,5 |
12 | 300 | 673 | 571,5 | 2 1/8 (54,0) | 16 | 2 | 123,8 | 451 | 323,9 | 11 |
14 | 350 | 749 | 635,0 | 2 3/8 (60,3) | 16 | 21/4 | 133,4 | 495 | 355,6 | 11 |
16 | 400 | 826 | 704,8 | 2 5/8 (66,7) | 16 | 21/2 | 146,1 | 552 | 406,4 | 11 |
18 | 450 | 914 | 774,7 | 2 7/8 (73,0) | 16 | 23/4 | 161,9 | 597 | 457,2 | 11 |
20 | 500 | 984 | 831,8 | 3 1/8 (79,4) | 16 | 3 | 178,0 | 641 | 508,0 | 11 |
24 | 600 | 1 168 | 990,6 | 3 5/8 (92,0) | 16 | 31/2 | 203,0 | 762 | 609,6 | 11 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 1500 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
15 | - | 1,78 | 1,91 | 1,75 | 1,78 | 1,79 | 1,72 |
20 | - | 2,41 | 2,59 | 2,33 | 2,36 | 2,39 | 2,28 |
25 | - | 3,56 | 3,77 | 3,42 | 3,48 | 3,53 | 3,36 |
32 | - | 4,16 | 4,42 | 3,93 | 4,01 | 4,07 | 3,84 |
40 | - | 5,78 | 6,08 | 5,40 | 5,50 | 5,57 | 5,27 |
50 | - | 10,08 | 11,14 | 9,87 | 10,05 | 10,22 | 9,67 |
65 | - | 13,93 | 15,34 | 13,62 | 13,92 | 14,20 | 13,37 |
80 | - | 19,18 | 20,34 | - | 18,35 | - | 17,55 |
100 | - | 29,93 | 30,56 | - | 28,46 | - | 27,23 |
125 | - | 58,51 | 58,15 | - | 53,06 | - | 51,17 |
150 | - | 72,02 | 70,16 | - | 62,78 | - | 60,51 |
200 | - | 121,91 | 119,78 | - | - | - | 102,32 |
250 | - | 210,62 | 204,65 | - | - | - | 180,64 |
300 | - | 315,83 | 304,04 | - | - | - | 284,28 |
350 | - | 420,57 | 399,73 | - | - | - | 383,75 |
400 | - | 559,16 | 508,66 | - | - | - | 493,98 |
450 | - | 759,99 | 659,54 | - | - | - | 636,46 |
500 | - | 965,37 | 806,96 | - | - | - | 765,15 |
600 | - | 1 556,84 | 1 278,03 | - | - | - | 1 220,79 |
Calculated masses of raised face flanges must be used only as a guide. |
Class 2500
Class 2500 Flange - DN 15 to 300 - ASME B16.5
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of shoulder | |||
Ø of bolt holes |
Number | Nominal size |
||||||
NPS | DN | D | K | L | C | G | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | |||
1/2 | 15 | 133 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 30,2 | - |
3/4 | 20 | 140 | 95,2 | 7/8 (22,2) | 4 | 3/4 | 31,7 | - |
1 | 25 | 159 | 107,9 | 1 (25,4) | 4 | 7/8 | 34,9 | - |
1 1/4 a) | 32 | 184 | 130,2 | 1 1/8 (28,6) | 4 | 1 | 38,1 | - |
1 1/2 | 40 | 203 | 146,0 | 1 1/4 (31,8) | 4 | 1 1/8 | 44,4 | - |
2 | 50 | 235 | 171,4 | 1 1/8 (28,6) | 8 | 1 | 50,8 | - |
2 1/2 a) | 65 | 267 | 196,8 | 1 1/4 (31,8) | 8 | 1 1/8 | 57,1 | 22 |
3 | 80 | 305 | 228,6 | 1 3/8 (34,9) | 8 | 1 1/4 | 66,7 | 32 |
4 | 100 | 356 | 273,0 | 1 5/8 (41,3) | 8 | 1 1/2 | 76,2 | 48 |
5 a) | 125 | 419 | 323,8 | 1 7/8 (47,6) | 8 | 1 3/4 | 92,1 | 67 |
6 | 150 | 483 | 368,3 | 2 1/8 (54,0) | 8 | 2 | 108,0 | 86 |
8 | 200 | 552 | 438,1 | 2 1/8 (54,0) | 12 | 2 | 127,0 | 96 |
10 | 250 | 673 | 539,7 | 2 5/8 (66,7) | 12 | 2 1/2 | 165,1 | 159 |
12 | 300 | 762 | 619,1 | 2 7/8 (73,0) | 12 | 2 3/4 | 184,1 | 193 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Height of the neck |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | H3 | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | |||
1/2 | 15 | 133 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 30,2 | 43 | 73,0 | 5 |
3/4 | 20 | 140 | 95,2 | 7/8 (22,2) | 4 | 3/4 | 31,7 | 51 | 79,4 | 5 |
1 | 25 | 159 | 107,9 | 1 (25,4) | 4 | 7/8 | 34,9 | 57 | 88,9 | 5 |
1 1/4 a) | 32 | 184 | 130,2 | 1 1/8 (28,6) | 4 | 1 | 38,1 | 73 | 95,3 | 5 |
1 1/2 | 40 | 203 | 146,0 | 1 1/4 (31,8) | 4 | 1 1/8 | 44,4 | 79 | 111,1 | 9,5 |
2 | 50 | 235 | 171,4 | 1 1/8 (28,6) | 8 | 1 | 50,8 | 95 | 127,0 | 9,5 |
2 1/2 a) | 65 | 267 | 196,8 | 1 1/4 (31,8) | 8 | 1 1/8 | 57,1 | 114 | 142,9 | 9,5 |
3 | 80 | 305 | 228,6 | 1 3/8 (34,9) | 8 | 1 1/4 | 66,7 | 133 | 168,3 | 9,5 |
4 | 100 | 356 | 273,0 | 1 5/8 (41,3) | 8 | 1 1/2 | 76,2 | 165 | 190,5 | 9,5 |
5 a) | 125 | 419 | 323,8 | 1 7/8 (47,6) | 8 | 1 3/4 | 92,1 | 203 | 228,6 | 9,5 |
6 | 150 | 483 | 368,3 | 2 1/8 (54,0) | 8 | 2 | 108,0 | 235 | 273,1 | 15,5 |
8 | 200 | 552 | 438,1 | 2 1/8 (54,0) | 12 | 2 | 127,0 | 305 | 317,5 | 15,5 |
10 | 250 | 673 | 539,7 | 2 5/8 (66,7) | 12 | 2 1/2 | 165,1 | 375 | 419,1 | 15,5 |
12 | 300 | 762 | 619,1 | 2 7/8 (73,0) | 12 | 2 3/4 | 184,1 | 441 | 463,6 | 15,5 |
a) It is useful to avoid using these dimensions in new constructions. B3 : To be specified by the buyer |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Height of the neck |
Minimum thread length |
Mini Ø countersink |
Joint radius of the neck (min.) |
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Ø of bolt holes |
Number | Nominal size |
|||||||||
NPS | DN | D | K | L | C | H1 | T | V | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | |||
1/2 | 15 | 133 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 30,2 | 39,7 | 29 | 23,5 | 5 |
3/4 | 20 | 140 | 95,2 | 7/8 (22,2) | 4 | 3/4 | 31,7 | 42,9 | 32 | 29,0 | 5 |
1 | 25 | 159 | 107,9 | 1 (25,4) | 4 | 7/8 | 34,9 | 47,6 | 35 | 35,0 | 5 |
1 1/4 a) | 32 | 184 | 130,2 | 1 1/8 (28,6) | 4 | 1 | 38,1 | 52,4 | 38 | 44,5 | 5 |
1 1/2 | 40 | 203 | 146,0 | 1 1/4 (31,8) | 4 | 1 1/8 | 44,4 | 60,3 | 44 | 50,5 | 9,5 |
2 | 50 | 235 | 171,4 | 1 1/8 (28,6) | 8 | 1 | 50,8 | 69,9 | 51 | 63,5 | 9,5 |
2 1/2 a) | 65 | 267 | 196,8 | 1 1/4 (31,8) | 8 | 1 1/8 | 57,1 | 79,4 | 57 | 76,0 | 9,5 |
3 | 80 | 305 | 228,6 | 1 3/8 (34,9) | 8 | 1 1/4 | 66,7 | 92,1 | 64 | 92,0 | 9,5 |
4 | 100 | 356 | 273,0 | 1 5/8 (41,3) | 8 | 1 1/2 | 76,2 | 108,0 | 70 | 118,0 | 9,5 |
5 a) | 125 | 419 | 323,8 | 1 7/8 (47,6) | 8 | 1 3/4 | 92,1 | 130,2 | 76 | 145,0 | 9,5 |
6 | 150 | 483 | 368,3 | 2 1/8 (54,0) | 8 | 2 | 108,0 | 152,4 | 83 | 171,0 | 15,5 |
8 | 200 | 552 | 438,1 | 2 1/8 (54,0) | 12 | 2 | 127,0 | - | - | - | 15,5 |
10 | 250 | 673 | 539,7 | 2 5/8 (66,7) | 12 | 2 1/2 | 165,1 | - | - | - | 15,5 |
12 | 300 | 762 | 619,1 | 2 7/8 (73,0) | 12 | 2 3/4 | 184,1 | - | - | - | 15,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Height of the neck |
Ø d'alésage |
Joint radius of the flange bore (min.) |
Joint radius of the neck (min.) |
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Ø of bolt holes |
Number | Nominal size |
|||||||||||
NPS | DN | D | K | L | C | N | A | H2 | B2 | r | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | mm | mm | mm | |||
1/2 | 15 | 133 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 30,2 | 43 | 21,3 | 39,7 | 23,0 | 3,0 | 5 |
3/4 | 20 | 140 | 95,2 | 7/8 (22,2) | 4 | 3/4 | 31,7 | 51 | 26,7 | 42,9 | 28,0 | 3,0 | 5 |
1 | 25 | 159 | 107,9 | 1 (25,4) | 4 | 7/8 | 34,9 | 57 | 33,4 | 47,6 | 35,0 | 3,0 | 5 |
1 1/4 a) | 32 | 184 | 130,2 | 1 1/8 (28,6) | 4 | 1 | 38,1 | 73 | 42,2 | 52,4 | 43,5 | 5,0 | 5 |
1 1/2 | 40 | 203 | 146,0 | 1 1/4 (31,8) | 4 | 1 1/8 | 44,4 | 79 | 48,3 | 60,3 | 50,0 | 6,5 | 9,5 |
2 | 50 | 235 | 171,4 | 1 1/8 (28,6) | 8 | 1 | 50,8 | 95 | 60,3 | 69,9 | 62,5 | 8,0 | 9,5 |
2 1/2 a) | 65 | 267 | 196,8 | 1 1/4 (31,8) | 8 | 1 1/8 | 57,1 | 114 | 73,0 | 79,4 | 75,5 | 8,0 | 9,5 |
3 | 80 | 305 | 228,6 | 1 3/8 (34,9) | 8 | 1 1/4 | 66,7 | 133 | 88,9 | 92,1 | 91,5 | 9,5 | 9,5 |
4 | 100 | 356 | 273,0 | 1 5/8 (41,3) | 8 | 1 1/2 | 76,2 | 165 | 114,3 | 108,0 | 117,0 | 11,0 | 9,5 |
5 a) | 125 | 419 | 323,8 | 1 7/8 (47,6) | 8 | 1 3/4 | 92,1 | 203 | 141,3 | 130,2 | 145,0 | 11,0 | 9,5 |
6 | 150 | 483 | 368,3 | 2 1/8 (54,0) | 8 | 2 | 108,0 | 235 | 168,3 | 152,4 | 171,0 | 12,5 | 15,5 |
8 | 200 | 552 | 438,1 | 2 1/8 (54,0) | 12 | 2 | 127,0 | 305 | 219,1 | 177,8 | 222,0 | 12,5 | 15,5 |
10 | 250 | 673 | 539,7 | 2 5/8 (66,7) | 12 | 2 1/2 | 165,1 | 375 | 273,0 | 228,6 | 277,0 | 12,5 | 15,5 |
12 | 300 | 762 | 619,1 | 2 7/8 (73,0) | 12 | 2 3/4 | 184,1 | 441 | 323,9 | 254,0 | 328,0 | 12,5 | 15,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Nominal diameter |
Ext. Ø of flange |
Ø of drilling circle |
Bolts | Flange thickness |
Ø of base neck |
Ø of neck to the right of the weld |
Joint radius of the neck (min.) |
|||
Ø of bolt holes |
Number | Nominal size |
||||||||
NPS | DN | D | K | L | C | N | A | R1 | ||
mm | mm | Pouce (mm) | Pouce | mm | mm | mm | mm | |||
1/2 | 15 | 133 | 88,9 | 7/8 (22,2) | 4 | 3/4 | 30,2 | 43 | 21,3 | 5 |
3/4 | 20 | 140 | 95,2 | 7/8 (22,2) | 4 | 3/4 | 31,7 | 51 | 26,7 | 5 |
1 | 25 | 159 | 107,9 | 1 (25,4) | 4 | 7/8 | 34,9 | 57 | 33,4 | 5 |
1 1/4 a) | 32 | 184 | 130,2 | 1 1/8 (28,6) | 4 | 1 | 38,1 | 73 | 42,2 | 5 |
1 1/2 | 40 | 203 | 146,0 | 1 1/4 (31,8) | 4 | 1 1/8 | 44,4 | 79 | 48,3 | 9,5 |
2 | 50 | 235 | 171,4 | 1 1/8 (28,6) | 8 | 1 | 50,8 | 95 | 60,3 | 9,5 |
2 1/2 a) | 65 | 267 | 196,8 | 1 1/4 (31,8) | 8 | 1 1/8 | 57,1 | 114 | 73,0 | 9,5 |
3 | 80 | 305 | 228,6 | 1 3/8 (34,9) | 8 | 1 1/4 | 66,7 | 133 | 88,9 | 9,5 |
4 | 100 | 356 | 273,0 | 1 5/8 (41,3) | 8 | 1 1/2 | 76,2 | 165 | 114,3 | 9,5 |
5 a) | 125 | 419 | 323,8 | 1 7/8 (47,6) | 8 | 1 3/4 | 92,1 | 203 | 141,3 | 9,5 |
6 | 150 | 483 | 368,3 | 2 1/8 (54,0) | 8 | 2 | 108,0 | 235 | 168,3 | 15,5 |
8 | 200 | 552 | 438,1 | 2 1/8 (54,0) | 12 | 2 | 127,0 | 305 | 219,1 | 15,5 |
10 | 250 | 673 | 539,7 | 2 5/8 (66,7) | 12 | 2 1/2 | 165,1 | 375 | 273,0 | 15,5 |
12 | 300 | 762 | 619,1 | 2 7/8 (73,0) | 12 | 2 3/4 | 184,1 | 441 | 323,9 | 15,5 |
a) It is useful to avoid using these dimensions in new constructions. |
Dimension | Types of flange | Tolerances mm |
Nominal diameter Pouce |
|
Diameter of neck at the end weld A | 11, 21 | + 2,4 – 0,8 |
≤ 5 | |
+ 4,0 – 0,8 |
> 5 | |||
Diameter of bore B1, B2 | 01, 12, 14, 15 | + 0,8 – 0 |
≤ 10 | |
+ 1,6 – 0 |
> 10 | |||
Diameter of bore B3 | 11, 14 | ± 0,8 | ≤ 10 | |
± 1,6 | > 10 ≤ 18 | |||
+ 3,2 – 1,6 |
> 18 | |||
Height of the neck H1, H2, H3 | 11, 12, 13, 14, 15 | ± 1,6 | ≤ 10 | |
± 3,2 | > 10 | |||
Flange thickness C | All types | + 3,2 0 |
≤ 18 | |
+ 4,8 0 |
> 18 | |||
External diameter of the raised face 0 | All types | 1,6 mm Raised face | ± 0,8 mm | All |
6,4 mm Raised face | ± 0,4 mm | |||
Dimensions of faces M, Q, W, Y et Z | All types | Faces of C, D, E, F type joints | ± 0,4 mm | All |
Depth of the groove E for ring joint | All types | Faces of C type joints | + 4,8 – 0 |
All |
Thickness of groove F | ± 0,2 mm | |||
Diameter at the centre of groove P | ± 0,13 mm | |||
Angle 23° | ± ½° | |||
Diameter of drilling circle K | All types | ± 1,6 mm | All | |
Spacing between two adjacent bolt holes | All types | ± 0,8 mm | All | |
Eccentricity between the drilling circle and the diameters of the machined faces | All types | 0,8 mm | ≤ 2½ | |
1,6 mm | > 2½ | |||
Parallelism between the supporting surfaces of the bolts and the joint faces of the flange | All types | 1° | All |
Masses of Class 2500 flanges (kg) | |||||||
DN | Type | ||||||
01 | 05 | 11 | 12 | 13 | 14 | 15 | |
15 | - | 2,98 | 3,23 | - | 2,97 | - | 2,91 |
20 | - | 3,52 | 3,90 | - | 3,51 | - | 3,42 |
25 | - | 4,99 | 5,53 | - | 4,91 | - | 4,78 |
32 | - | 7,34 | 8,19 | - | 7,23 | - | 7,04 |
40 | - | 10,38 | 11,48 | - | 10,12 | - | 9,86 |
50 | - | 15,58 | 17,22 | - | 15,05 | - | 14,63 |
65 | - | 22,68 | 25,44 | - | 21,88 | - | 21,25 |
80 | - | 34,88 | 38,92 | - | 33,18 | - | 32,26 |
100 | - | 54,11 | 60,07 | - | 50,74 | - | 49,35 |
125 | - | 90,76 | 100,27 | - | 84,40 | - | 82,20 |
150 | - | 141,64 | 156,37 | - | 130,14 | - | 127,45 |
200 | - | 214,06 | 233,79 | - | - | - | 186,30 |
250 | - | 410,84 | 445,71 | - | - | - | 353,61 |
300 | - | 592,20 | 628,13 | - | - | - | 501,81 |
Calculated masses of raised face flanges must be used only as a guide. |