Long Weld Neck Flanges
ASME SA182 Duplex 2205 Long Weld Neck Flanges, UNS S30400 Long Weld Neck Flanges, UNS N08904 Long Weld Neck Flanges, DIN 1.4301 Long Weld Neck Flanges, ASME SA182 SS 316 Long Weld Neck Flanges.
About Long Weld Neck Flanges
NISSAN STEEL Manufacturer supplier of SS, High nickel and Duplex / Super duplex Flanges, for enquiry contact on email: sales@nissansteel.com, export@nissansteel.com, nissansteels@gmail.com
WRN 2.4856 Long Weld Neck Flanges Manufacturer, UNS N06625 Long Weld Neck Flanges Exporter, Inconel 625 Long Weld Neck Flanges Exporter
Specification of Long Weld Neck Flanges
Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Size Chart | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Long Weld Neck Flange |
Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Long Weld Neck Flange |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Long Weld Neck Flange |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Long Weld Neck Flange |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Long Weld Neck Flange |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar Long Weld Neck Flange |
Most common types of Long Weld Neck Flange | Forged / Threaded / Screwed / Plate |
Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
Dimensions Standard Of Long Weld Neck Flanges
Class 150 Long Weld Neck Flange Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | ||||||||
1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 34.9 | 2 | 60.3 | As Required | 4 | 1/2 | 50 | 55 | 5/8 | M14 |
3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 42.9 | 2 | 69.9 | As Required | 4 | 1/2 | 50 | 65 | 5/8 | M14 |
1 | 25 | 110 | 12.7 | 49 | 33.4 | 50.8 | 2 | 79.4 | As Required | 4 | 1/2 | 55 | 65 | 5/8 | M14 |
1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 63.5 | 2 | 88.9 | As Required | 4 | 1/2 | 55 | 70 | 5/8 | M14 |
1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 73 | 2 | 98.4 | As Required | 4 | 1/2 | 65 | 70 | 5/8 | M14 |
2 | 50 | 150 | 17.5 | 78 | 60.3 | 92.1 | 2 | 120.7 | As Required | 4 | 5/8 | 70 | 85 | 3/4 | M16 |
2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 104.8 | 2 | 139.7 | As Required | 4 | 5/8 | 75 | 90 | 3/4 | M16 |
3 | 80 | 190 | 22.3 | 108 | 88.9 | 127 | 2 | 152.4 | As Required | 4 | 5/8 | 75 | 90 | 3/4 | M16 |
3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 139.7 | 2 | 177.8 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
4 | 100 | 230 | 22.3 | 135 | 114.3 | 157.2 | 2 | 190.5 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
5 | 125 | 255 | 22.3 | 164 | 141.3 | 185.7 | 2 | 215.9 | As Required | 8 | 3/4 | 85 | 95 | 7/8 | M20 |
6 | 150 | 280 | 23.9 | 192 | 168.3 | 215.9 | 2 | 241.3 | As Required | 8 | 3/4 | 85 | 100 | 7/8 | M20 |
8 | 200 | 345 | 27 | 246 | 219.1 | 269.9 | 2 | 298.5 | As Required | 8 | 3/4 | 90 | 110 | 7/8 | M20 |
10 | 250 | 405 | 28.6 | 305 | 273 | 323.8 | 2 | 362 | As Required | 12 | 7/8 | 100 | 115 | 1 | M24 |
12 | 300 | 485 | 30.2 | 365 | 323.8 | 381 | 2 | 431.8 | As Required | 12 | 7/8 | 100 | 120 | 1 | M24 |
14 | 350 | 535 | 33.4 | 400 | 355.6 | 412.8 | 2 | 476.3 | As Required | 12 | 1 | 115 | 135 | 1 1/8 | M27 |
16 | 400 | 595 | 35 | 457 | 406.4 | 469.9 | 2 | 539.8 | As Required | 16 | 1 | 115 | 135 | 1 1/8 | M27 |
18 | 450 | 635 | 38.1 | 505 | 457.2 | 533.4 | 2 | 577.9 | As Required | 16 | 1 1/8 | 125 | 145 | 1 1/4 | M30 |
20 | 500 | 700 | 41.3 | 559 | 508 | 584.2 | 2 | 635 | As Required | 20 | 1 1/8 | 140 | 160 | 1 1/4 | M30 |
24 | 600 | 815 | 46.1 | 663 | 610 | 692.2 | 2 | 749.3 | As Required | 20 | 1 1/4 | 150 | 170 | 1 3/8 | M33 |
Class 300 Long Weld Neck Flange Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | ||||||||
1/2 | 15 | 95 | 12.7 | 38 | 21.3 | 34.9 | 2 | 66.7 | As Required | 4 | 1/2 | 55 | 65 | 5/8 | M14 |
3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 42.9 | 2 | 82.6 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
1 | 25 | 125 | 15.9 | 54 | 33.4 | 50.8 | 2 | 88.9 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 63.5 | 2 | 98.4 | As Required | 4 | 5/8 | 70 | 85 | 3/4 | M16 |
1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 73 | 2 | 114.3 | As Required | 4 | 3/4 | 75 | 90 | 7/8 | M20 |
2 | 50 | 165 | 20.7 | 84 | 60.3 | 92.1 | 2 | 127 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 104.8 | 2 | 149.2 | As Required | 8 | 3/4 | 85 | 100 | 7/8 | M20 |
3 | 80 | 210 | 27 | 117 | 88.9 | 127 | 2 | 168.3 | As Required | 8 | 3/4 | 90 | 110 | 7/8 | M20 |
3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 139.7 | 2 | 184.2 | As Required | 8 | 3/4 | 95 | 110 | 7/8 | M20 |
4 | 100 | 255 | 30.2 | 146 | 114.3 | 157.2 | 2 | 200 | As Required | 8 | 3/4 | 95 | 115 | 7/8 | M20 |
5 | 125 | 280 | 33.4 | 178 | 141.3 | 185.7 | 2 | 235 | As Required | 8 | 3/4 | 110 | 120 | 7/8 | M20 |
6 | 150 | 320 | 35 | 206 | 168.3 | 215.9 | 2 | 269.9 | As Required | 12 | 3/4 | 110 | 120 | 7/8 | M20 |
8 | 200 | 380 | 39.7 | 260 | 219.1 | 269.9 | 2 | 330.2 | As Required | 12 | 7/8 | 120 | 140 | 1 | M24 |
10 | 250 | 445 | 46.1 | 321 | 273 | 323.8 | 2 | 387.4 | As Required | 16 | 1 | 140 | 160 | 1 1/8 | M27 |
12 | 300 | 520 | 49.3 | 375 | 323.8 | 381 | 2 | 450.8 | As Required | 16 | 1 1/8 | 145 | 170 | 1 1/4 | M30 |
14 | 350 | 585 | 52.4 | 425 | 355.6 | 412.8 | 2 | 514.4 | As Required | 20 | 1 1/8 | 160 | 180 | 1 1/4 | M30 |
16 | 400 | 650 | 55.6 | 483 | 406.4 | 469.9 | 2 | 571.5 | As Required | 20 | 1 1/4 | 165 | 190 | 1 3/8 | M33 |
18 | 450 | 710 | 58.8 | 533 | 457 | 533.4 | 2 | 628.6 | As Required | 24 | 1 1/4 | 170 | 195 | 1 3/8 | M33 |
20 | 500 | 775 | 62 | 587 | 508 | 584.2 | 2 | 685.8 | As Required | 24 | 1 1/4 | 185 | 205 | 1 3/8 | M33 |
24 | 600 | 915 | 68.3 | 702 | 610 | 692.2 | 2 | 812.8 | As Required | 24 | 1 1/2 | 205 | 230 | 1 5/8 | M39 |
Class 400 Long Weld Neck Flange Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 95 | 14.3 | 38 | 21.3 | 34.9 | 7 | 66.7 | As Required | 4 | 1/2 | 75 | 5/8 | M14 |
3/4 | 20 | 115 | 15.9 | 48 | 26.7 | 42.9 | 7 | 82.6 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 | 25 | 125 | 17.5 | 54 | 33.4 | 50.8 | 7 | 88.9 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 1/4 | 32 | 135 | 20.7 | 64 | 42.2 | 63.5 | 7 | 98.4 | As Required | 4 | 5/8 | 95 | 3/4 | M16 |
1 1/2 | 40 | 155 | 22.3 | 70 | 48.3 | 73 | 7 | 114.3 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
2 | 50 | 165 | 25.4 | 84 | 60.3 | 92.1 | 7 | 127 | As Required | 8 | 5/8 | 110 | 3/4 | M16 |
2 1/2 | 65 | 190 | 28.6 | 100 | 73 | 104.8 | 7 | 149.2 | As Required | 8 | 3/4 | 120 | 7/8 | M20 |
3 | 80 | 210 | 31.8 | 117 | 88.9 | 127 | 7 | 168.3 | As Required | 8 | 3/4 | 125 | 7/8 | M20 |
3 1/2 | 90 | 230 | 35 | 133 | 101.6 | N/A | 7 | 184.2 | As Required | 8 | 7/8 | 140 | 1 | M24 |
4 | 100 | 255 | 35 | 146 | 114.3 | 157.2 | 7 | 200 | As Required | 8 | 7/8 | 140 | 1 | M24 |
5 | 125 | 280 | 38.1 | 178 | 141.3 | 185.7 | 7 | 235 | As Required | 8 | 7/8 | 145 | 1 | M24 |
6 | 150 | 320 | 41.3 | 206 | 168.3 | 215.9 | 7 | 269.9 | As Required | 12 | 7/8 | 150 | 1 | M24 |
8 | 200 | 380 | 47.7 | 260 | 219.1 | 269.9 | 7 | 330 | As Required | 12 | 1 | 170 | 1 1/8 | M27 |
10 | 250 | 445 | 54 | 321 | 273 | 323.8 | 7 | 387.4 | As Required | 16 | 1 1/8 | 190 | 1 1/4 | M30 |
12 | 300 | 520 | 57.2 | 375 | 323.8 | 381 | 7 | 450.8 | As Required | 16 | 1 1/4 | 205 | 1 3/8 | M33 |
14 | 350 | 585 | 60.4 | 425 | 355.6 | 412.8 | 7 | 514.4 | As Required | 20 | 1 1/4 | 210 | 1 3/8 | M33 |
16 | 400 | 650 | 63.5 | 483 | 406.4 | 469.9 | 7 | 571.5 | As Required | 20 | 1 3/8 | 220 | 1 1/2 | M36 |
18 | 450 | 710 | 66.7 | 533 | 457 | 533.4 | 7 | 628.6 | As Required | 24 | 1 3/8 | 230 | 1 1/2 | M36 |
20 | 500 | 775 | 69.9 | 587 | 508 | 584.2 | 7 | 685.8 | As Required | 24 | 1 1/2 | 240 | 1 3/4 | M39 |
24 | 600 | 915 | 76.2 | 702 | 610 | 692.2 | 7 | 812.8 | As Required | 24 | 1 3/4 | 265 | 1 7/8 | M45 |
Class 600 Long Weld Neck Flange Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 95 | 14.3 | 38 | 21.3 | 34.9 | 7 | 66.7 | As Required | 4 | 1/2 | 75 | 5/8 | M14 |
3/4 | 20 | 115 | 15.9 | 48 | 26.7 | 42.9 | 7 | 82.6 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 | 25 | 125 | 17.5 | 54 | 33.4 | 50.8 | 7 | 88.9 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 1/4 | 32 | 135 | 20.7 | 64 | 42.2 | 63.5 | 7 | 98.4 | As Required | 4 | 5/8 | 95 | 3/4 | M16 |
1 1/2 | 40 | 155 | 22.3 | 70 | 48.3 | 73 | 7 | 114.3 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
2 | 50 | 165 | 25.4 | 84 | 60.3 | 92.1 | 7 | 127 | As Required | 8 | 5/8 | 110 | 3/4 | M16 |
2 1/2 | 65 | 190 | 28.6 | 100 | 73 | 104.8 | 7 | 149.2 | As Required | 8 | 3/4 | 120 | 7/8 | M20 |
3 | 80 | 210 | 31.8 | 117 | 88.9 | 127 | 7 | 168.3 | As Required | 8 | 3/4 | 125 | 7/8 | M20 |
3 1/2 | 90 | 230 | 35 | 133 | 101.6 | N/A | 7 | 184.2 | As Required | 8 | 7/8 | 140 | 1 | M24 |
4 | 100 | 275 | 38.1 | 152 | 114.3 | 157.2 | 7 | 215.9 | As Required | 8 | 7/8 | 145 | 1 | M24 |
5 | 125 | 330 | 44.5 | 189 | 141.3 | 185.7 | 7 | 266.7 | As Required | 8 | 1 | 165 | 1 1/8 | M27 |
6 | 150 | 355 | 47.7 | 222 | 168.3 | 215.9 | 7 | 292.1 | As Required | 12 | 1 | 170 | 1 1/8 | M27 |
8 | 200 | 420 | 55.6 | 273 | 219.1 | 269.9 | 7 | 349.2 | As Required | 12 | 1 1/8 | 190 | 1 1/4 | M30 |
10 | 250 | 510 | 63.5 | 343 | 273 | 323.8 | 7 | 431.8 | As Required | 16 | 1 1/4 | 215 | 1 3/8 | M33 |
12 | 300 | 560 | 66.7 | 400 | 323.8 | 381 | 7 | 489 | As Required | 20 | 1 1/4 | 220 | 1 3/8 | M33 |
14 | 350 | 605 | 69.9 | 432 | 355.6 | 412.8 | 7 | 527 | As Required | 20 | 1 3/8 | 235 | 1 1/2 | M36 |
16 | 400 | 685 | 76.2 | 495 | 406.4 | 469.9 | 7 | 603.2 | As Required | 20 | 1 1/2 | 255 | 1 5/8 | M39 |
18 | 450 | 745 | 82.6 | 546 | 457 | 533.4 | 7 | 654 | As Required | 20 | 1 5/8 | 275 | 1 3/4 | M42 |
20 | 500 | 815 | 88.9 | 610 | 508 | 584.2 | 7 | 723.9 | As Required | 24 | 1 5/8 | 285 | 1 3/4 | M42 |
Class 900 Long Weld Neck Flange Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 120 | 22.3 | 38 | 21.3 | 34.9 | 7 | 82.6 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
3/4 | 20 | 130 | 25.4 | 44 | 26.7 | 42.9 | 7 | 88.9 | As Required | 4 | 3/4 | 115 | 7/8 | M20 |
1 | 25 | 150 | 28.6 | 52 | 33.4 | 50.8 | 7 | 101.6 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/4 | 32 | 160 | 28.6 | 64 | 42.2 | 63.5 | 7 | 111.1 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/2 | 40 | 180 | 31.8 | 70 | 48.3 | 73 | 7 | 123.8 | As Required | 4 | 1 | 140 | 1 1/8 | M27 |
2 | 50 | 215 | 38.1 | 105 | 60.3 | 92.1 | 7 | 165.1 | As Required | 8 | 7/8 | 145 | 1 | M24 |
2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 104.8 | 7 | 190.5 | As Required | 8 | 1 | 160 | 1 1/8 | M27 |
3 | 80 | 240 | 38.1 | 127 | 88.9 | 127 | 7 | 190.5 | As Required | 8 | 7/8 | 145 | 1 | M24 |
4 | 100 | 290 | 44.5 | 159 | 114.3 | 157.2 | 7 | 235 | As Required | 8 | 1 1/8 | 170 | 1 1/4 | M30 |
5 | 125 | 350 | 50.8 | 190 | 141.3 | 185.7 | 7 | 279.4 | As Required | 8 | 1 1/4 | 190 | 1 3/8 | M33 |
6 | 150 | 380 | 55.6 | 235 | 168.3 | 215.9 | 7 | 317.5 | As Required | 12 | 1 1/8 | 190 | 1 1/4 | M30 |
8 | 200 | 470 | 63.5 | 298 | 219.1 | 269.9 | 7 | 393.7 | As Required | 12 | 1 3/8 | 220 | 1 1/2 | M36 |
10 | 250 | 545 | 69.9 | 368 | 273 | 323.8 | 7 | 469.9 | As Required | 16 | 1 3/8 | 235 | 1 1/2 | M36 |
12 | 300 | 610 | 79.4 | 419 | 323.8 | 381 | 7 | 533.4 | As Required | 20 | 1 3/8 | 255 | 1 1/2 | M36 |
14 | 350 | 640 | 85.8 | 451 | 355.6 | 412.8 | 7 | 558.8 | As Required | 20 | 1 1/2 | 275 | 1 5/8 | M39 |
16 | 400 | 705 | 88.9 | 508 | 406.4 | 469.9 | 7 | 616 | As Required | 20 | 1 5/8 | 285 | 1 3/4 | M42 |
18 | 450 | 785 | 101.6 | 565 | 457 | 533.4 | 7 | 685.8 | As Required | 20 | 1 7/8 | 325 | 2 | M48 |
20 | 500 | 855 | 108 | 622 | 508 | 584.2 | 7 | 749.3 | As Required | 20 | 2 | 350 | 2 1/8 | M52 |
24 | 600 | 1040 | 139.7 | 749 | 610 | 692.2 | 7 | 901.7 | As Required | 20 | 2 1/2 | 440 | 2 5/8 | M64 |
Class 1500 Long Weld Neck Flanges Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 120 | 22.3 | 38 | 21.3 | 34.9 | 7 | 82.6 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
3/4 | 20 | 130 | 25.4 | 44 | 26.7 | 42.9 | 7 | 88.9 | As Required | 4 | 3/4 | 115 | 7/8 | M20 |
1 | 25 | 150 | 28.6 | 52 | 33.4 | 50.8 | 7 | 101.6 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/4 | 32 | 160 | 28.6 | 64 | 42.2 | 63.5 | 7 | 111.1 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/2 | 40 | 180 | 31.8 | 70 | 48.3 | 73 | 7 | 123.8 | As Required | 4 | 1 | 140 | 1 1/8 | M27 |
2 | 50 | 215 | 38.1 | 105 | 60.3 | 92.1 | 7 | 165.1 | As Required | 8 | 7/8 | 145 | 1 | M24 |
2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 104.8 | 7 | 190.5 | As Required | 8 | 1 | 160 | 1 1/8 | M27 |
3 | 80 | 265 | 47.7 | 133 | 88.9 | 127 | 7 | 203.2 | As Required | 8 | 1 1/8 | 180 | 1 1/4 | M30 |
4 | 100 | 310 | 54 | 162 | 114.3 | 157.2 | 7 | 241.3 | As Required | 8 | 1 1/4 | 195 | 1 3/8 | M33 |
5 | 125 | 375 | 73.1 | 197 | 141.3 | 185.7 | 7 | 292.1 | As Required | 8 | 1 1/2 | 250 | 1 5/8 | M39 |
6 | 150 | 395 | 82.6 | 229 | 168.3 | 215.9 | 7 | 317.5 | As Required | 12 | 1 3/8 | 260 | 1 1/2 | M36 |
8 | 200 | 485 | 92.1 | 292 | 219.1 | 269.9 | 7 | 393.7 | As Required | 12 | 1 5/8 | 290 | 1 3/4 | M42 |
10 | 250 | 585 | 108 | 368 | 273 | 323.8 | 7 | 482.6 | As Required | 12 | 1 7/8 | 335 | 2 | M48 |
12 | 300 | 675 | 123.9 | 451 | 323.8 | 381 | 7 | 571.5 | As Required | 16 | 2 | 375 | 2 1/8 | M52 |
14 | 350 | 750 | 133.4 | 495 | 355.6 | 412.8 | 7 | 635 | As Required | 16 | 2 1/4 | 405 | 2 3/8 | M56 |
16 | 400 | 825 | 146.1 | 552 | 406.4 | 469.9 | 7 | 704.8 | As Required | 16 | 2 1/2 | 445 | 2 5/8 | M64 |
18 | 450 | 915 | 162 | 597 | 457 | 533.4 | 7 | 774.7 | As Required | 16 | 2 3/4 | 495 | 2 7/8 | M72 |
20 | 500 | 985 | 177.8 | 641 | 508 | 584.2 | 7 | 831.8 | As Required | 16 | 3 | 540 | 3 1/8 | M76 |
24 | 600 | 1170 | 203.2 | 762 | 610 | 692.2 | 7 | 990.6 | As Required | 16 | 3 1/2 | 615 | 3 5/8 | M90 |
Class 2500 Long Weld Neck Flanges Dimensions
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 135 | 30.2 | 43 | 21.3 | 34.9 | 7 | 88.9 | As Required | 4 | 3/4 | 120 | 7/8 | M20 |
3/4 | 20 | 140 | 31.8 | 51 | 26.7 | 42.9 | 7 | 95.2 | As Required | 4 | 3/4 | 125 | 7/8 | M20 |
1 | 25 | 160 | 35 | 57 | 33.4 | 50.8 | 7 | 108 | As Required | 4 | 7/8 | 140 | 1 | M24 |
1 1/4 | 32 | 185 | 38.1 | 73 | 42.2 | 63.5 | 7 | 130.2 | As Required | 4 | 1 | 150 | 1 1/8 | M27 |
1 1/2 | 40 | 205 | 44.5 | 79 | 48.3 | 73 | 7 | 146 | As Required | 4 | 1 1/8 | 170 | 1 1/4 | M30 |
2 | 50 | 235 | 50.9 | 95 | 60.3 | 92.1 | 7 | 171.4 | As Required | 8 | 1 | 180 | 1 1/8 | M27 |
2 1/2 | 65 | 265 | 57.2 | 114 | 73 | 104.8 | 7 | 196.8 | As Required | 8 | 1 1/8 | 195 | 1 1/4 | M30 |
3 | 80 | 305 | 66.7 | 133 | 88.9 | 127 | 7 | 228.6 | As Required | 8 | 1 1/4 | 220 | 1 3/8 | M33 |
4 | 100 | 355 | 76.2 | 165 | 114.3 | 157.2 | 7 | 273 | As Required | 8 | 1 1/2 | 255 | 1 5/8 | M39 |
5 | 125 | 420 | 92.1 | 203 | 141.3 | 185.7 | 7 | 323.8 | As Required | 8 | 1 3/4 | 300 | 1 7/8 | M45 |
6 | 150 | 485 | 108 | 235 | 168.3 | 215.9 | 7 | 368.3 | As Required | 8 | 2 | 345 | 2 1/8 | M52 |
8 | 200 | 550 | 127 | 305 | 219.1 | 269.9 | 7 | 438.2 | As Required | 12 | 2 | 380 | 2 1/8 | M52 |
10 | 250 | 675 | 165.1 | 375 | 273 | 323.8 | 7 | 539.8 | As Required | 12 | 2 1/2 | 490 | 2 5/8 | M64 |
12 | 300 | 760 | 184.2 | 441 | 323.8 | 381 | 7 | 619.1 | As Required | 12 | 2 3/4 | 540 | 2 7/8 | M72 |
Size Of Long Weld Neck Flanges
Normal Sizes | Outside Daimeter (O.D.) | Schedule 10 | Schedule 20 | Schedule 30 | Schedule 40 | Schedule 60 | Schedule 80 | Schedule 100 | Schedule 120 | Schedule 140 | Schedule 160 |
½ | 0.84 | 0.083 | ... | ... | 0.109 | ... | 0.147 | ... | ... | ... | 0.188 |
¾ | 1.05 | 0.083 | ... | ... | 0.113 | ... | 0.154 | ... | ... | ... | 0.219 |
1 | 1.315 | 0.109 | ... | ... | 0.133 | ... | 0.179 | ... | ... | ... | 0.25 |
1 ¼ | 1.66 | 0.109 | ... | ... | 0.14 | ... | 0.191 | ... | ... | ... | 0.25 |
1 ½ | 1.9 | 0.109 | ... | ... | 0.145 | ... | 0.2 | ... | ... | ... | 0.281 |
2 | 2.375 | 0.109 | ... | ... | 0.154 | ... | 0.218 | ... | ... | ... | 0.344 |
2 ½ | 2.875 | 0.12 | ... | ... | 0.203 | ... | 0.276 | ... | ... | ... | 0.375 |
3 | 3.5 | 0.12 | ... | ... | 0.216 | ... | 0.3 | ... | ... | ... | 0.438 |
3 ½ | 4 | 0.12 | ... | ... | 0.226 | ... | 0.318 | ... | ... | ... | ... |
4 | 4.5 | 0.12 | ... | ... | 0.237 | ... | 0.337 | ... | 0.438 | ... | 0.531 |
5 | 5.563 | 0.134 | ... | ... | 0.258 | ... | 0.375 | ... | 0.5 | ... | 0.625 |
6 | 6.625 | 0.134 | ... | ... | 0.28 | ... | 0.432 | ... | 0.562 | ... | 0.719 |
8 | 8.625 | 0.148 | 0.25 | 0.277 | 0.322 | 0.406 | 0.5 | 0.594 | 0.719 | 0.812 | 0.906 |
10 | 10.75 | 0.165 | 0.25 | 0.307 | 0.365 | 0.5 | 0.594 | 0.719 | 0.844 | 1 | 1.125 |
12 | 12.75 | 0.18 | 0.25 | 0.33 | 0.406 | 0.562 | 0.688 | 0.844 | 1 | 1.125 | 1.312 |
14 | 14 | 0.25 | 0.312 | 0.375 | 0.438 | 0.594 | 0.75 | 0.938 | 1.094 | 1.25 | 1.406 |
16 | 16 | 0.25 | 0.312 | 0.375 | 0.5 | 0.656 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 |
18 | 18 | 0.25 | 0.312 | 0.438 | 0.562 | 0.75 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 |
20 | 20 | 0.25 | 0.375 | 0.5 | 0.594 | 0.812 | 1.031 | 1.281 | 1.5 | 1.75 | 1.969 |
22 | 22 | 0.25 | ... | ... | ... | ... | ... | ... | .... | .... | .... |
24 | 24 | 0.25 | 0.375 | 0.562 | 0.688 | 0.969 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 |
26 | 26 | .... | .... | .... | .... | .... | .... | .... | .... | .... | .... |
30 | 30 | 0.312 | 0.5 | 0.625 | .... | .... | .... | .... | .... | .... | .... |
36 | 36 | 0.312 | 0.5 | 0.625 | 0.75 | .... | .... | .... | .... | .... | .... |
40 | 40 | .... | .... | .... | .... | .... | .... | .... | .... | .... | .... |
42 | 42 | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. |
48 | 48 | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. | …….. |
Weight Chart Of Long Weld Neck Flanges
Nominal Pipe Sizes (NPS) | Slip On (SORF) | Threaded (NPT) | Socket Weld (SWRF) | Lap Joint (Loose) | Blind (BLRF) | Weld Neck (WRNR) |
½ | 1 | 1 | 2 | 1 | 2 | 2 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 |
1 | 2 | 2 | 2 | 2 | 2 | 3 |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
1½ | 3 | 3 | 3 | 3 | 4 | 4 |
2 | 5 | 5 | 5 | 5 | 5 | 6 |
2½ | 8 | 8 | 8 | 8 | 7 | 10 |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 |
3½ | 11 | 12 | 11 | 11 | 13 | 12 |
4 | 13 | 13 | 13 | 13 | 17 | 16.5 |
5 | 15 | 15 | 15 | 15 | 20 | 21 |
6 | 19 | 19 | 19 | 19 | 27 | 26 |
8 | 30 | 30 | 30 | 30 | 47 | 42 |
10 | 43 | 43 | 43 | 43 | 70 | 54 |
12 | 64 | 64 | 64 | 64 | 123 | 88 |
14 | 90 | 90 | 90 | 105 | 140 | 114 |
16 | 106 | 98 | 98 | 140 | 180 | 140 |
18 | 130 | 130 | 130 | 160 | 220 | 165 |
20 | 165 | 165 | 165 | 195 | 285 | 197 |
22 | 185 | 185 | 185 | 245 | 355 | 225 |
24 | 220 | 220 | 220 | 275 | 430 | 268 |
Pressure Rating Of Long Weld Neck Flanges
Temperature (°C) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
-29 - 38 | 19.8 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
50 | 19.5 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
100 | 17.7 | 51.5 | 68.7 | 103.0 | 155 | 258 | 429 |
150 | 15.8 | 50.2 | 66.8 | 100.3 | 151 | 251 | 418 |
200 | 13.8 | 48.6 | 64.8 | 97.2 | 146 | 243 | 405 |
250 | 12.1 | 46.3 | 61.7 | 92.7 | 139 | 232 | 386 |
300 | 10.2 | 42.9 | 57.0 | 85.7 | 129 | 214 | 357 |
325 | 9.3 | 41.4 | 55.0 | 82.6 | 124 | 207 | 344 |
350 | 8.4 | 40.0 | 53.4 | 80.0 | 120 | 200 | 334 |
375 | 7.4 | 37.8 | 50.4 | 75.7 | 114 | 189 | 315 |
400 | 6.5 | 34.7 | 46.3 | 69.4 | 104 | 174 | 290 |
425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 144 | 240 |
450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115 | 192 |
475 | 3.7 | 17.1 | 22.8 | 34.2 | 51.3 | 85.4 | 142 |
500 | 2.8 | 11.6 | 15.4 | 23.2 | 34.7 | 57.9 | 96.5 |
538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
Price Of Long Weld Neck Flanges
Stainless Steel Flanges | USD $2.05 - $10.06 / Piece (FOB Price) on request |
High Nickel Alloys Flanges | USD $8.10 - $20.20 / Piece (FOB Price) on request |
Duplex & Super Duplex Flange | USD $10.20 - $35.50 / Piece (FOB Price) on request |
Cupro Nickel Flanges | USD $5.19 - $10.48 / Piece (FOB Price) on request |
Carbon Steel Flanges | USD $2.08 - $7.10 / Piece (FOB Price) on request |
Application Of Long Weld Neck Flanges
We make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers.
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Oil & Gas Industries
- Sugar Industries
Testing Of Long Weld Neck Flanges
We known for its accurate and perfect dimensions. We thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.
- Eddy Current Examining
- Hydrostatic Analysis
- Pitting Protection Test
- Power Generation Industries
- Positive Material Recognition
Packing Of Long Weld Neck Flanges
We uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:
- Wooden Boxes
- Wooden Pallets
- Shrink-Wrapped
- Carton Boxes
- Wooden crates
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Types of Flanges
- Forge Flange
- Blind Flange
- Slip On Flange
- Weldneck Flange
- Lap Joint Flange
- Threaded Flange
- Socketweld Flange
- Long Weld Neck Flange
- Weldo / Nipo Flange
- Orifice Flange
- Reducing Flange
- Flat Flange
- Loose Flange
- RTJ Flanges
- SORF Flanges
- Square Flanges
- SWRF Flanges
- Expander Flanges
- WNRF Flanges
- Ring Type Joint Flanges
- Groove & Tongue Flanges
- Spectacle Blind Flanges
- Weld Neck Flanges A / B Flanges
- Spades Ring Spacers Flanges
- Screwed Flanges
- Forging Facing Flanges
- Flanges Bolts