Type and Construction
The weld neck stub ends are in accordance with EEMUA 234, Section 1A for 16 and 20 bar systems. The range of sizes covered is ½ in./16 mm to 36 in./914 mm. Other sizes are available on request. The stub ends are subdivided in two types short (Type S) based on DIN 86037 and long (Type L) based on MSS SP-43 suit the appropriate pipe dimension. The Type L stub ends are included to facilitate the attachments of this type of flange to butt weld welding fittings in accordance with EEMUA-234.
Dimensions
Dimensions are based on EEMUA-234, Section 1A, Tables 1.2-1.3.
Tolerances
The tolerances are based on EEMUA–234, Section 1A, Table 1.5.1.
Weld Preparation
The stub ends with S1<3mm are supplied with plain weld ends. Larger dimension are supplied with the weld bevel of 37 ½°±2 ½°.
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| 16 bar | 20 bar |
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| 16 bar | 20 barS |
½ | 16 | 16 | 40 | 18 | Use | 12.00 | 35 | 51 | 4 | 15 | Use | 2.00 |
¾ | 25 | 25 | 50 | 27 | 21.00 | 40 | 51 | 5 | 15 | 2.00 | ||
1 | 30 | 30 | 60 | 32 | 25.00 | 40 | 51 | 5 | 15 | 2.50 | ||
1¼ | 38 | 38 | 70 | 40 | 33.03 | 40 | 51 | 5 | 15 | 2.50 | ||
1½ | 44.5 | 44.5 | 80 | 46.5 | 39.53 | 45 | 51 | 6 | 15 | 2.50 | ||
2 | 57 | 57 | 99 | 59 | 52.16 | 45 | 64 | 6 | 15 | 2.50 | ||
2½ | 76.1 | 76.1 | 120 | 78 | 71.23 | 45 | 64 | 6 | 15 | 2.50 | ||
3 | 88.9 | 88.9 | 130 | 91 | 84.08 | 50 | 64 | 7 | 15 | 2.50 | ||
4 | 108 | 108 | 158 | 110 | 102.13 | 50 | 76 | 7 | 15 | 3.00 | ||
6 | 159 | 159 | 212 | 161.5 | 153.75 | 152.38 | 50 | 89 | 9 | 15 | 3.00 | 3.50 |
8 | 219.1 | 219.1 | 270 | 222 | 211.10 | 210.10 | 50 | 102 | 9 | 15 | 4.00 | 4.50 |
10 | 267 | 267 | 320 | 270 | 257.97 | 255.93 | 50 | 127 | 9 | 15 | 4.50 | 5.50 |
12 | 323.9 | 323.9 | 370 | 327 | 312.83 | 309.74 | 50 | 152 | 11 | 16 | 5.50 | 7.00 |
14 | 368 | 368 | 430 | 371 | 354.22 | 351.00 | 50 | 152 | 11 | 16 | 6.50 | 8.00 |
16 | 419 | 419 | 482 | 422 | 404.17 | 399.84 | 50 | 152 | 12 | 16 | 7.00 | 9.00 |
18 | 457.2 | 457.2 | 530 | 460 | 441.50 | 438.50 | 50 | 152 | 12 | 16 | 8.00 | 9.50 |
20 | 508 | 508 | 585 | 511 | 490.50 | 486.50 | 50 | 152 | 12 | 20 | 8.50 | 11.00 |
24 | 610 | 610 | 685 | 613 | 589.50 | 584.50 | 60 | 152 | 14 | 20 | 10.50 | 13.00 |
28 | 711 | 711 | 800 | 719 | 687.50 | 681.50 | 60 | 190 | 19 | 24 | 12.00 | 15.00 |
32 | 813 | 813 | 905 | 821 | 786.50 | 779.50 | 60 | 190 | 20.5 | 24 | 13.50 | 17.00 |
36 | 914 | 914 | 1000 | 922 | 883.50 | 876.50 | 60 | 190 | 22 | 32 | 15.50 | 19.00 |
Type and Construction
The weld neck backing flanges are in accordance with EEMUA 234, Section 1B and are suitable for both 16 and 20 bar pressure rating. The range of sizes covered is ½ in./16 mm to 36 in./914 mm Class 150. Other sizes are available on request. Drilling and outside diameter dimensions of flange sizes ½ in./16 mm-24 in./610 mm are in accordance with ANSI B16.5 and BS 1560, whereas the larger sizes, 28 in./711 mm -36 in./914 mm are in accordance with MSS SP-44. The backing flanges are manufactured from forged carbon steel in accordance with ASTM A105. The chemical composition and mechanical properties of the components are in accordance with EEMUA 234, Section 1B, Table 1.6.2. The recommended bolting is in accordance with ASTM A193-B7. Unless otherwise specified the flanges are protected by hot dipped galvanising. Additional organic coatings such as polyamide epoxy are available on request.
Dimensions
Dimensions are based on EEMUA - 234, Section 1B, Table 1.4.
Tolerances
The tolerances are based on EEMUA – 234, Section 1B, Table 1.5.2.
Nominal |
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| b |
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| Approx. Total Weight | |
Size |
| D | min. | d2 |
| d5 | K | No. Of | e |
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| incl. Stub End - kg | |
in | mm | mm | mm | in | mm | mm | mm | Bolts | mm | S | 16 bar L | S | 20 bar L |
½ | 16 | 89 | 14 | 5/8 | 15.9 | 19 | 60.3 | 4 | 2 | as for 20 bar | 0.64 | 0.66 | |
¾ | 25 | 98 | 14 | 5/8 | 15.9 | 28 | 69.8 | 4 | 3 | 0.8 | 0.9 | ||
1 | 30 | 108 | 14 | 5/8 | 15.9 | 33 | 79.4 | 4 | 3 | 1 | 1 | ||
1¼ | 38 | 117 | 14 | 5/8 | 15.9 | 41 | 88.9 | 4 | 3 | 1.2 | 1.3 | ||
1½ | 44.5 | 127 | 14 | 5/8 | 15.9 | 48 | 98.4 | 4 | 3 | 1.5 | 1.6 | ||
2 | 57 | 152 | 18 | 3/4 | 19 | 62 | 120.6 | 4 | 3 | 2.5 | 2.6 | ||
2½ | 76.1 | 178 | 18 | 3/4 | 19 | 81 | 139.7 | 4 | 3 | 3.3 | 3.4 | ||
3 | 88.9 | 190 | 19 | 3/4 | 19 | 94 | 152.4 | 4 | 3 | 3.8 | 3.9 | ||
4 | 108 | 229 | 24 | 3/4 | 19 | 113 | 190.5 | 8 | 3 | 6.6 | 6.9 | ||
6 | 159 | 279 | 27 | 7/8 | 22.2 | 164 | 241.3 | 8 | 4 | 9.7 | 10.4 | 9.9 | 10.7 |
8 | 219.1 | 343 | 31 | 7/8 | 22.2 | 225 | 298.4 | 8 | 5 | 15 | 16.7 | 15.1 | 17 |
10 | 267 | 406 | 38 | 1 | 25.4 | 273 | 362 | 12 | 5 | 23.1 | 26.6 | 23.5 | 27.5 |
12 | 323.9 | 483 | 41 | 1 | 25.4 | 330 | 431.8 | 12 | 7 | 34.6 | 41 | 35.2 | 43.1 |
14 | 368 | 533 | 45 | 1 1/8 | 28.6 | 374 | 476.2 | 12 | 7 | 44.7 | 53.4 | 45.5 | 55.8 |
16 | 419 | 597 | 51 | 1 1/8 | 28.6 | 426 | 539.8 | 16 | 7 | 60 | 70.5 | 60.6 | 72.5 |
18 | 457.2 | 635 | 52 | 1 1/4 | 31.8 | 465 | 577.8 | 16 | 7 | 66 | 78 | 68 | 84.3 |
20 | 508 | 698 | 58 | 1 1/4 | 31.8 | 517 | 635 | 20 | 7 | 84.4 | 98.7 | 86 | 103.5 |
24 | 610 | 813 | 71 | 1 3/8 | 34.9 | 618 | 749.3 | 20 | 9 | 131.4 | 149.8 | 134 | 156.5 |
28 | 711 | 927 | 81 | 1 3/8 | 34.9 | 727 | 864 | 28 | 9 | 180.3 | 202.9 | 183.6 | 212.1 |
32 | 813 | 1060 | 95 | 1 5/8 | 41.1 | 829 | 978 | 28 | 9 | 269 | 296.8 | 275.5 | 311.2 |
36 | 914 | 1168 | 105 | 1 5/8 | 41.1 | 931 | 1086 | 32 | 9 | 335.8 | 369.8 | 341 | 385.8 |
Slip-On Stub Ends and Slip-On Backing Flanges
Type and Construction
The slip-on stub ends are in accordance with EEMUA 234, Section 2A and are suitable for 16 and 20 pressure rating. The range of sizes covered is ½ in./16 mm to 4 in./108 mm Class 150. The slip-on backing flanges are in accordance with EEMUA 234, Section 2B. Drilling and outside diameter dimensions are in accordance with ANSI B16.5 and BS 1560. The backing flanges are suitable for use in both 16 and 20 bar systems. The backing flanges are manufactured from forged carbon steel in accordance with ASTM A105. The chemical composition and mechanical properties of the components are in accordance with EEMUA 234, Section 2B, Table 2.5.2. The recommended bolting is in accordance with ASTM A193-B7. Unless otherwise specified the flanges are protected by hot dipped galvanising. Additional organic coatings such as polyamide epoxy are available on request.
Dimensions
Dimensions are based on EEMUA - 234, Section 2A and 2B, Tables 2.2 and 2.3.
Tolerances
The tolerances are based on EEMUA – 234, Section 2A and 2B, Tables 2.4.1 and 2.4.2.
Nominal |
| Inner Stub End Dimension | Outer Steel Flange - Dimension | No. Of Bolt | Approx. | ||||||||||
Size |
| d1 | d3 | d4 | H | h | D | b | K | d5 | d2 | e | Holes | Total Weight | |
in | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | in | mm | mm | (kg) |
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½ | 16 | 16.07 | 21 | 40 | 16 | 5 | 89 | 14 | 60.3 | 23 | 5/8 | 15.9 | 3 | 4 | 0.61 |
¾ | 25 | 25.08 | 31 | 53 | 16 | 5 | 98 | 14 | 69.8 | 33 | 5/8 | 15.9 | 3 | 4 | 0.75 |
1 | 30 | 30.08 | 36 | 60 | 18 | 5 | 108 | 14 | 79.4 | 38 | 5/8 | 15.9 | 3 | 4 | 0.92 |
1¼ | 38 | 38.10 | 45 | 70 | 18 | 5 | 117 | 14 | 88.9 | 47 | 5/8 | 15.9 | 3 | 4 | 1.10 |
1½ | 44.5 | 44.60 | 51 | 80 | 19 | 5 | 127 | 14 | 98.4 | 53 | 5/8 | 15.9 | 3 | 4 | 1.30 |
2 | 57 | 57.23 | 67 | 99 | 19 | 6 | 152 | 18 | 120.6 | 69 | 3/4 | 19 | 3 | 4 | 2.20 |
2½ | 76.1 | 76.33 | 87 | 120 | 19 | 6 | 178 | 18 | 139.7 | 89 | 3/4 | 19 | 3 | 4 | 3.00 |
3 | 88.9 | 89.18 | 100 | 130 | 21 | 7 | 190 | 19 | 152.4 | 103 | 3/4 | 19 | 3 | 4 | 3.50 |
4 | 108 | 108.38 | 120 | 158 | 23 | 7 | 229 | 24 | 190.5 | 123 | 3/4 | 19 | 3 | 4 | 6.00 |