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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 are the type LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have a different shapes and thicker “Wall”.
Molding Process：
Through the forging process, using mold forming, and then through machining to complete the product processing.
Production Scope：
DN15-DN2000
Main Material：
Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
Application Condition：
Widely used in Petrochemical, Coal Chemical, Refining, Oil and Gas Transmission, Marine Environment, Power, Heating and Other projects
Product Characteristics：
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 are the type of LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have different shapes and thicker “Wall”.
SPECIFICATION OF LONG WELD NECK FLANGE
Type: LWN Forged Flange, Long welding neck flange
Material:Standard: ANSI/DIN/JIS
Pressure:ANSI class 150, 300, 600, 1500, 2500, DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint, Zinc, Hot dipped Galvanized.
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 reputation
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 |
For pipe fittings, please link: https://bekingpiping.com