Description
A long weld neck flange is a type of flange used in piping systems that has a long, tapered neck or extension on one end. This neck is designed to be welded to a pipe, and the flange provides a mating surface for another flange or fitting.
Long weld neck flanges are used in applications where high-pressure and high-temperature conditions are present. The long neck allows for a gradual transition of stresses from the flange to the pipe, reducing the likelihood of stress concentrations and fatigue failure. The extended neck also provides additional clearance between the flange and the pipe, making it easier to weld and inspect the joint.
Long weld neck flanges are available in a range of sizes and pressure ratings and can be made from a variety of materials, including carbon steel, stainless steel, and alloy steel. They are typically used in critical applications, such as in the oil and gas industry, chemical processing, and power generation, where a secure and reliable joint is essential.
Long weld neck flanges can also be customized with special features such as hubs, special facings, or coatings to suit specific requirements. They are generally more expensive than other types of flanges, but their high strength and reliability make them well-suited for use in demanding applications.
Long welding neck flange, LWN flanges are similar to standard Welding Neck flanges, but the “Neck” is considerably longer than other flanges. LWN flange is often used as a nozzle for a barrel or column. In addition, there is the type of LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have different shapes and thicker “Wall”.
Rich production technology, advanced equipment, high automation degree and high production precision, complete molding. As the designated supplier of major energy enterprise groups under the jurisdiction of SASAC, the company has won a number of national, and provincial reputations.
Elite offers a wide range of flanges like 150LBS Long Welding Neck Flange , LWN Flange, SO, WN, BL, SW, LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 150LBS LONG WELD NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1/2″ | 89 | 11.1 | 34.9 | 30.2 | 12.7 | 228. 6 | 304. 8 | 60.5 | 4 | 15.8 |
| 3/4″ | 98.5 | 12.7 | 42.9 | 38.1 | 19.1 | 228. 6 | 304. 8 | 69.9 | 4 | 15.8 |
| 1″ | 108. 0 | 14.3 | 50.8 | 50.8 | 25.4 | 228. 6 | 304. 8 | 79.4 | 4 | 15.8 |
| 1-1/4″ | 117. 5 | 15.9 | 63.5 | 60.3 | 31.8 | 228. 6 | 304. 8 | 88.9 | 4 | 15.8 |
| 1-1/2″ | 127. 0 | 17.5 | 73 | 66.7 | 38.1 | 228. 6 | 304. 8 | 98.4 | 4 | 15.8 |
| 2″ | 152. 5 | 19.1 | 92.1 | 82.5 | 50.8 | 228. 6 | 304. 8 | 120. 7 | 4 | 19 |
| 2-1/2″ | 178. 0 | 22.2 | 104. 8 | 95.2 | 63.5 | 228. 6 | 304. 8 | 139. 7 | 4 | 19 |
| 3″ | 190. 5 | 23.8 | 127. 0 | 107. 9 | 76.2 | 228. 6 | 304. 8 | 152. 4 | 4 | 19 |
| 3-1/2″ | 216. 0 | 23.8 | 139. 9 | 124. 0 | 88.9 | 228. 6 | 304. 8 | 177. 8 | 8 | 19 |
| 4″ | 228. 5 | 23.8 | 157. 2 | 139. 7 | 101. 6 | 228. 6 | 304. 8 | 190. 5 | 8 | 19 |
| 5″ | 254. 0 | 23.8 | 185. 7 | 165. 1 | 127. 0 | 228. 6 | 304. 8 | 215. 9 | 8 | 22.5 |
| 6″ | 279. 5 | 25.4 | 215. 9 | 196. 8 | 152. 4 | 228. 6 | 304. 8 | 241. 3 | 8 | 22.5 |
| 8″ | 343. 0 | 28.6 | 269. 9 | 247. 6 | 203. 2 | 228. 6 | 304. 8 | 298. 4 | 8 | 22.5 |
| 10″ | 406. 5 | 30.2 | 323. 9 | 304. 8 | 254. 0 | 228. 6 | 304. 8 | 361. 9 | 12 | 25.5 |
| 12″ | 482. 5 | 31.8 | 381. 0 | 365. 1 | 304. 8 | 228. 6 | 304. 8 | 431. 8 | 12 | 25.5 |
| 14″ | 533. 5 | 34.9 | 412. 8 | 406. 4 | 355. 6 | 228. 6 | 304. 8 | 476. 2 | 12 | 28.5 |
| 16″ | 597. 0 | 36.5 | 469. 9 | 457. 2 | 406. 4 | 228. 6 | 304. 8 | 539. 7 | 16 | 28.5 |
| 18″ | 635. 0 | 39.7 | 533. 4 | 508. 0 | 457. 2 | 228. 6 | 304. 8 | 577. 8 | 16 | 31.8 |
| 20″ | 698. 5 | 42.9 | 584. 2 | 558. 8 | 508. 0 | 228. 6 | 304. 8 | 635. 0 | 20 | 31.8 |
| 24″ | 813. 0 | 47 | 692. 2 | 666. 7 | 609. 6 | 228. 6 | 304. 8 | 749. 3 | 20 | 35.1 |
Elite offers a wide range of flanges like 300LBS Long Welding Neck Flange ,LWN Flange, SO, WN, BL, SW, LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 300LBS LONG WELD NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1/2″ | 95.5 | 14.3 | 34.9 | 38.1 | 12.7 | 228. 6 | 304. 8 | 66.7 | 4 | 15.8 |
| 3/4″ | 117. 5 | 15.9 | 42.9 | 47.6 | 19.1 | 228. 6 | 304. 8 | 82.5 | 4 | 19 |
| 1″ | 124. 0 | 17.5 | 50.8 | 54 | 25.4 | 228. 6 | 304. 8 | 88.9 | 4 | 19 |
| 1-1/4″ | 133. 5 | 19.1 | 63.5 | 63.5 | 31.8 | 228. 6 | 304. 8 | 98.4 | 4 | 19 |
| 1-1/2″ | 155. 5 | 20.6 | 73 | 69.8 | 38.1 | 228. 6 | 304. 8 | 114. 3 | 4 | 22.5 |
| 2″ | 165. 0 | 22.2 | 92.1 | 82.5 | 50.8 | 228. 6 | 304. 8 | 127. 0 | 8 | 19 |
| 2-1/2″ | 190. 5 | 25.4 | 104. 8 | 100. 0 | 63.5 | 228. 6 | 304. 8 | 149. 2 | 8 | 22.5 |
| 3″ | 209. 5 | 28.6 | 127. 0 | 117. 5 | 76.2 | 228. 6 | 304. 8 | 168. 3 | 8 | 22.5 |
| 3-1/2″ | 228. 5 | 30.2 | 139. 7 | 133. 4 | 88.9 | 228. 6 | 304. 8 | 184. 1 | 8 | 22.5 |
| 4″ | 254. 0 | 31.8 | 157. 2 | 146. 0 | 101. 6 | 228. 6 | 304. 8 | 200. 0 | 8 | 22.5 |
| 5″ | 279. 5 | 34.9 | 185. 7 | 177. 8 | 127. 0 | 228. 6 | 304. 8 | 234. 9 | 8 | 22.5 |
| 6″ | 317. 5 | 36.5 | 215. 9 | 206. 4 | 152. 4 | 228. 6 | 304. 8 | 269. 9 | 12 | 22.5 |
| 8″ | 381. 0 | 41.3 | 269. 9 | 260. 3 | 203. 2 | 228. 6 | 304. 8 | 330. 2 | 12 | 25.5 |
| 10″ | 444. 5 | 47.6 | 323. 9 | 320. 7 | 254. 0 | 228. 6 | 304. 8 | 387. 3 | 16 | 28.5 |
| 12″ | 520. 5 | 50.8 | 381. 0 | 374. 6 | 304. 8 | 228. 6 | 304. 8 | 450. 8 | 16 | 31.8 |
| 14″ | 584. 0 | 54 | 412. 8 | 425. 4 | 355. 6 | 228. 6 | 304. 8 | 514. 3 | 20 | 31.8 |
| 16″ | 647. 5 | 57.2 | 469. 9 | 482. 6 | 406. 4 | 228. 6 | 304. 8 | 571. 5 | 20 | 35.1 |
| 18″ | 711. 0 | 60.3 | 533. 4 | 533. 4 | 457. 2 | 228. 6 | 304. 8 | 628. 6 | 24 | 35.1 |
| 20″ | 774. 5 | 63.5 | 584. 2 | 587. 3 | 508. 0 | 228. 6 | 304. 8 | 685. 8 | 24 | 35.1 |
| 24″ | 914. 5 | 69.9 | 692. 2 | 701. 6 | 609. 6 | 228. 6 | 304. 8 | 812. 8 | 24 | 41.2 |
Elite offers a wide range of flanges like 400lbs Long Welding Neck Flange , SO, WN, BL, SW, LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 400LBS LONG WELD NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1″ | 124. 0 | 17.5 | 50.8 | 54 | 25.4 | 228. 6 | 304. 8 | 88.9 | 4 | 19 |
| 1-1/4″ | 133. 5 | 20.6 | 63.5 | 63.5 | 31.8 | 228. 6 | 304. 8 | 98.4 | 4 | 19 |
| 1-1/2″ | 155. 5 | 22.2 | 73 | 69.8 | 38.1 | 228. 6 | 304. 8 | 114. 3 | 4 | 22.5 |
| 2″ | 165. 0 | 25.4 | 92.1 | 82.5 | 50.8 | 228. 6 | 304. 8 | 127. 0 | 8 | 19 |
| 2-1/2″ | 190. 5 | 28.6 | 104. 8 | 100. 0 | 63.5 | 228. 6 | 304. 8 | 149. 2 | 8 | 22.5 |
| 3″ | 209. 5 | 31.8 | 127. 0 | 117. 5 | 76.2 | 228. 6 | 304. 8 | 168. 1 | 8 | 22.5 |
| 3-1/2″ | 228. 5 | 34.9 | 139. 7 | 133. 4 | 88.9 | 228. 6 | 304. 8 | 184. 2 | 8 | 25.5 |
| 4″ | 254. 0 | 34.9 | 157. 2 | 146. 0 | 101. 6 | 228. 6 | 304. 8 | 200. 0 | 8 | 25.5 |
| 5″ | 279. 5 | 38.1 | 185. 7 | 177. 8 | 127. 0 | 228. 6 | 304. 8 | 234. 9 | 8 | 25.5 |
| 6″ | 317. 5 | 41.3 | 215. 9 | 206. 4 | 152. 4 | 228. 6 | 304. 8 | 269. 9 | 12 | 25.5 |
| 8″ | 381. 0 | 47.6 | 269. 9 | 260. 3 | 203. 2 | 228. 6 | 304. 8 | 330. 2 | 12 | 28.5 |
| 10″ | 444. 5 | 54 | 323. 9 | 320. 7 | 254. 0 | 228. 6 | 304. 8 | 387. 3 | 16 | 31.8 |
| 12″ | 520. 5 | 57.2 | 381. 0 | 374. 6 | 304. 8 | 228. 6 | 304. 8 | 450. 8 | 16 | 35.1 |
| 14″ | 584. 0 | 60.3 | 412. 8 | 425. 4 | 355. 6 | 228. 6 | 304. 8 | 514. 3 | 20 | 35.1 |
| 16″ | 647. 5 | 63.5 | 469. 9 | 482. 6 | 406. 4 | 228. 6 | 304. 8 | 571. 5 | 20 | 38.1 |
| 18″ | 711. 0 | 66.7 | 533. 4 | 533. 4 | 457. 2 | 228. 6 | 304. 8 | 628. 6 | 24 | 38.1 |
| 20″ | 774. 5 | 69.9 | 584. 2 | 587. 3 | 508. 0 | 228. 6 | 304. 8 | 685. 8 | 24 | 41.2 |
| 24″ | 914. 5 | 76.2 | 692. 2 | 701. 6 | 609. 6 | 228. 6 | 304. 8 | 812. 8 | 24 | 47.8 |
Elite offers a wide range of flanges like 600LBS Long Welding Neck Flange , SO, WN, BL, SW, LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 600LBS LONG WELDING NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1″ | 124. 0 | 17.5 | 50.8 | 54 | 25.4 | 228. 6 | 304. 8 | 88.9 | 4 | 19 |
| 1-1/4″ | 133. 5 | 20.6 | 63.5 | 63.5 | 31.8 | 228. 6 | 304. 8 | 98.4 | 4 | 19 |
| 1-1/2″ | 155. 5 | 22.2 | 73 | 69.8 | 38.1 | 228. 6 | 304. 8 | 114. 3 | 4 | 22.5 |
| 2″ | 165. 0 | 25.4 | 92.1 | 82.5 | 50.8 | 228. 6 | 304. 8 | 127. 0 | 8 | 19 |
| 2-1/2″ | 190. 5 | 28.6 | 104. 8 | 100. 0 | 63.5 | 228. 6 | 304. 8 | 149. 2 | 8 | 22.5 |
| 3″ | 209. 5 | 31.8 | 127. 0 | 117. 5 | 76.2 | 228. 6 | 304. 8 | 168. 1 | 8 | 22.5 |
| 3-1/2″ | 228. 5 | 34.9 | 139. 7 | 133. 4 | 88.9 | 228. 6 | 304. 8 | 184. 2 | 8 | 25.5 |
| 4″ | 273. 0 | 38.1 | 157. 2 | 152. 4 | 101. 6 | 228. 6 | 304. 8 | 215. 9 | 8 | 25.5 |
| 5″ | 330. 0 | 44.5 | 185. 7 | 190. 5 | 127. 0 | 228. 6 | 304. 8 | 266. 7 | 8 | 28.5 |
| 6″ | 355. 5 | 47.6 | 215. 9 | 222. 2 | 152. 4 | 228. 6 | 304. 8 | 292. 1 | 12 | 28.5 |
| 8″ | 419. 0 | 55.6 | 269. 9 | 273. 0 | 203. 2 | 228. 6 | 304. 8 | 349. 3 | 12 | 31.8 |
| 10″ | 508. 0 | 63.5 | 323. 9 | 342. 9 | 254. 0 | 228. 6 | 304. 8 | 431. 8 | 16 | 35.1 |
| 12″ | 559. 0 | 66.7 | 381. 0 | 400. 0 | 304. 8 | 228. 6 | 304. 8 | 489. 0 | 20 | 35.1 |
| 14″ | 603. 5 | 69.9 | 412. 8 | 431. 8 | 355. 6 | 228. 6 | 304. 8 | 527. 1 | 20 | 38.1 |
| 16″ | 686. 0 | 76.2 | 469. 9 | 495. 3 | 406. 4 | 228. 6 | 304. 8 | 603. 3 | 20 | 41.2 |
| 18″ | 743. 0 | 82.6 | 533. 4 | 546. 1 | 457. 2 | 228. 6 | 304. 8 | 654. 1 | 20 | 44.5 |
| 20″ | 813. 0 | 88.9 | 584. 2 | 609. 6 | 508. 0 | 228. 6 | 304. 8 | 723. 9 | 24 | 44.5 |
| 24″ | 940. 0 | 101. 6 | 692. 2 | 717. 5 | 609. 6 | 228. 6 | 304. 8 | 838. 2 | 24 | 50.8 |
Elite offers a wide range of flanges like 900LBS Long Welding Neck Flange , SO, WN, BL, SW, LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 900LBS LONG WELDING NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1″ | 149. 5 | 28.6 | 50.8 | 52.4 | 25.4 | 228. 6 | 304. 8 | 101. 6 | 4 | 25.5 |
| 1-1/4″ | 159. 0 | 28.6 | 63.5 | 63.5 | 31.8 | 228. 6 | 304. 8 | 111. 1 | 4 | 25.5 |
| 1-1/2″ | 178. 0 | 31.8 | 73 | 69.9 | 38.1 | 228. 6 | 304. 8 | 123. 8 | 4 | 28.5 |
| 2″ | 216. 0 | 38.1 | 92.1 | 104. 8 | 50.8 | 228. 6 | 304. 8 | 165. 1 | 8 | 25.5 |
| 2-1/2″ | 244. 5 | 41.3 | 104. 8 | 123. 8 | 63.5 | 228. 6 | 304. 8 | 190. 5 | 8 | 28.5 |
| 3″ | 241. 5 | 38.1 | 127. 0 | 127. 0 | 76.2 | 228. 6 | 304. 8 | 190. 5 | 8 | 25.5 |
| 4″ | 292. 0 | 44.5 | 157. 2 | 158. 7 | 101. 6 | 228. 6 | 304. 8 | 235. 0 | 8 | 31.8 |
| 5″ | 349. 5 | 50.8 | 185. 7 | 190. 5 | 127. 0 | 228. 6 | 304. 8 | 279. 4 | 8 | 35.1 |
| 6″ | 381. 0 | 55.6 | 215. 9 | 235. 0 | 152. 4 | 228. 6 | 304. 8 | 317. 5 | 12 | 31.8 |
| 8″ | 470. 0 | 63.5 | 269. 9 | 298. 5 | 203. 2 | 228. 6 | 304. 8 | 393. 7 | 12 | 38.1 |
| 10″ | 546. 0 | 69.9 | 323. 9 | 368. 3 | 254. 0 | 228. 6 | 304. 8 | 469. 9 | 16 | 38.1 |
| 12″ | 609. 5 | 79.4 | 381. 0 | 419. 1 | 304. 8 | 228. 6 | 304. 8 | 533. 4 | 20 | 38.1 |
| 14″ | 641. 5 | 85.7 | 412. 8 | 450. 9 | 355. 6 | 228. 6 | 304. 8 | 558. 8 | 20 | 41 |
| 16″ | 705. 0 | 88.9 | 469. 9 | 508. 0 | 406. 4 | 228. 6 | 304. 8 | 616. 0 | 20 | 44.5 |
| 18″ | 787. 5 | 101. 6 | 533. 4 | 565. 2 | 457. 2 | 228. 6 | 304. 8 | 685. 8 | 20 | 50.8 |
| 20″ | 857. 5 | 108. 0 | 584. 2 | 622. 3 | 508. 0 | 228. 6 | 304. 8 | 749. 3 | 20 | 54 |
| 24″ | 1014.5 | 139. 7 | 692. 2 | 749. 3 | 609. 6 | 228. 6 | 304. 8 | 901. 7 | 20 | 66.5 |
Elite offers a wide range of flanges like 1500LBS Long Welding Neck Flange , SO, WN, BL, SW,LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 1500LBS LONG WELDING NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1″ | 149. 5 | 28.6 | 50.8 | 52.4 | 25.4 | 228. 6 | 304. 8 | 101. 6 | 4 | 25.5 |
| 1-1/4″ | 159. 0 | 28.6 | 63.5 | 63.5 | 31.8 | 228. 6 | 304. 8 | 111. 1 | 4 | 25.5 |
| 1-1/2″ | 178. 0 | 31.8 | 73 | 69.9 | 38.1 | 228. 6 | 304. 8 | 123. 8 | 4 | 28.5 |
| 2″ | 216. 0 | 38.1 | 92.1 | 104. 8 | 50.8 | 228. 6 | 304. 8 | 165. 1 | 8 | 25.5 |
| 2-1/2″ | 244. 5 | 41.3 | 104. 8 | 123. 8 | 63.5 | 228. 6 | 304. 8 | 190. 5 | 8 | 28.5 |
| 3″ | 267. 0 | 47.6 | 127. 0 | 133. 4 | 76.2 | 228. 6 | 304. 8 | 203. 2 | 8 | 31.8 |
| 4″ | 311. 0 | 54 | 157. 2 | 161. 9 | 101. 6 | 228. 6 | 304. 8 | 241. 3 | 8 | 35.1 |
| 5″ | 374. 5 | 73 | 185. 7 | 196. 9 | 127. 0 | 228. 6 | 304. 8 | 292. 1 | 8 | 41 |
| 6″ | 393. 5 | 82.6 | 215. 9 | 228. 6 | 152. 4 | 228. 6 | 304. 8 | 317. 5 | 12 | 38.1 |
| 8″ | 483. 0 | 92.1 | 269. 9 | 292. 1 | 203. 2 | 228. 6 | 304. 8 | 393. 7 | 12 | 44.5 |
| 10″ | 584. 0 | 108. 0 | 323. 9 | 368. 3 | 254. 0 | 406. 4 | 406. 4 | 482. 6 | 12 | 50.8 |
| 12″ | 673. 0 | 123. 8 | 381. 0 | 450. 9 | 304. 8 | 406. 4 | 406. 4 | 571. 5 | 16 | 54 |
| 14″ | 749. 5 | 133. 4 | 412. 8 | 495. 3 | 355. 6 | – | – | 635. 0 | 16 | 60.5 |
| 16″ | 825. 5 | 146. 1 | 469. 9 | 552. 5 | 406. 4 | – | – | 704. 9 | 16 | 66.5 |
| 18″ | 914. 5 | 161. 9 | 533. 4 | 596. 9 | 457. 2 | – | – | 774. 7 | 16 | 73 |
| 20″ | 984. 0 | 177. 8 | 584. 2 | 641. 4 | 508. 0 | – | – | 831. 9 | 16 | 79.5 |
| 24″ | 1168.5 | 203. 2 | 692. 2 | 762. 0 | 609. 6 | – | – | 990. 6 | 16 | 92 |
Elite offers a wide range of flanges like 2500LBS Long Welding Neck Flange ,SO, WN, BL, SW,LJ etc., include 150lb, 300lb, 600lb, 900lb, 1500lb, 2500lb with raised face, flat face, tongue, groove face etc., which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.
DIMENSION OF 2500LBS LONG WELDING NECK FLANGE
| Nominal Pipe Size | Outside Diameter | Thickness of Flange Min. | O.D. of Raised Face | Hub Diameter at Bevel | Diameter of Bore | Length Through Hub | Diameter of Bolt Circle | Number of Holes | Diameter of Holes | |
| O | C | R | A | B | H | H1 | BC | d | ||
| 1″ | 159. 0 | 34.9 | 50.8 | 57.2 | 25.4 | 25.4 | 304. 8 | 108. 0 | 4 | 25.5 |
| 1-1/4″ | 184. 0 | 38.1 | 63.5 | 73 | 31.8 | 31.8 | 304. 8 | 130. 2 | 4 | 28.5 |
| 1-1/2″ | 203. 0 | 44.5 | 73 | 79.4 | 38.1 | 38.1 | 304. 8 | 146. 1 | 4 | 31.8 |
| 2″ | 235. 0 | 50.8 | 92.1 | 95.3 | 50.8 | 50.8 | 304. 8 | 171. 5 | 8 | 28.5 |
| 2-1/2″ | 267. 0 | 57.2 | 104. 8 | 114. 3 | 63.5 | 63.5 | 304. 8 | 196. 9 | 8 | 31.8 |
| 3″ | 305. 0 | 66.7 | 127. 0 | 133. 4 | 76.2 | 76.2 | 304. 8 | 228. 6 | 8 | 35 |
| 4″ | 355. 5 | 76.2 | 157. 2 | 165. 1 | 101. 6 | 101. 6 | 304. 8 | 273. 1 | 8 | 41 |
| 5″ | 419. 0 | 92.1 | 185. 7 | 203. 2 | 127. 0 | 127. 0 | 304. 8 | 323. 9 | 8 | 48 |
| 6″ | 483. 0 | 108. 0 | 215. 9 | 235. 0 | 152. 4 | 152. 4 | 304. 8 | 368. 3 | 8 | 54 |
| 8″ | 552. 5 | 127. 0 | 269. 9 | 304. 8 | 203. 2 | 203. 2 | 304. 8 | 438. 2 | 12 | 54 |
| 10″ | 673. 0 | 165. 1 | 323. 9 | 374. 7 | 254. 0 | 254. 0 | 406. 4 | 539. 8 | 12 | 66.5 |
| 12″ | 762. 0 | 184. 2 | 381. 0 | 441. 3 | 304. 8 | 304. 8 | 406. 4 | 619. 1 | 12 | 73 |
