For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
JF Engineering offers a wide range of long weld flanges. It helps in high pressure and the need for a hub that is long and tapered are what weld neck flanges are most often used for. Specifying the schedule of pipe that it will be utilized for is of utmost importance when ordering. This type of flange is excellent for use in environments involving extreme temperature fluctuations and excessive handling and bending.
Uses of Long Weld neck Flanges:It is required when an extended neck is required. It acts as a boring extension. It is used in chemical and petroleum industries and used in residential and commercial buildings. It performs well where there is level of stress and temperature fluctuate. Long weld neck flanges are built in a variety of lengths, size and dimensions according to the need of the customers.
| Size: | 1/2"NB TO 24"NB IN |
| Class: | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Materials: | Monel : Grade: Monel 400, Monel K500, Monel R-405 Nickel : Grade: Nickel 200, Nickel 201 Inconel : Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718 Incoloy : Grade: Incoloy 800, Inconel 800H, 800HT Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X Titanium : Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11 Stainless Steel : Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L Carbon Steel : Grade: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8 Duplex Steel: Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61 Alloy Steel: Grade : ASTM A182 F1, F5, F9, F11, F22, F91 |
| Value Added Service: | CNC Machine, Customized Flanges |
| Coating/Surface Treatment: | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
Class 150 Standard Connections Flanges
| Size | Flange | Barrel OD | Bolting | Nut | Stud Bolt | Weights | Length | |||||||||||||||||
| Nom | Bore LWN & E | Bore HB | OD | Thk. | RF of OD | LWN | HB | E | # of Holes | Hole Size | Bolt Circle | Stop Dia | Relief Dia | Relief Length | Size | RF Length | RTJ Length | LWN | HB | E | Base | |||
| B | B | O | T | R | D | D | D | C | NS | NR | NL | Base | Per 1" | Base | Per 1" | Base | Per 1" | L | ||||||
| 1/2 | 0.5 | 0.55 | 3.5 | 0.44 | 1.38 | 1.25 | 1.5 | 3.5 | 4 | 0.62 | 2.38 | 1.5 | 1.25 | 0.75 | 1/2 | 2 1/4 | 2 3/4 | 3 | 0.3 | 5 | 0.4 | 21 | 2.7 | 9 |
| 3/4 | 0.75 | 0.74 | 3.88 | 0.5 | 1.69 | 1.62 | 1.88 | 3.88 | 4 | 0.62 | 2.75 | 1.88 | 1.62 | 0.75 | 1/2 | 2 1/2 | 3 | 5 | 0.5 | 7 | 0.7 | 27 | 3.2 | 9 |
| 1 | 1 | 0.96 | 4.25 | 0.56 | 2 | 2 | 2.25 | 4.25 | 4 | 0.62 | 3.12 | 2.25 | 2 | 0.75 | 1/2 | 2 1/2 | 3 | 7 | 0.7 | 10 | 0.9 | 30 | 3.8 | 9 |
| 1 1/4 | 1.25 | 1.28 | 4.62 | 0.62 | 2.5 | 2.38 | 2.62 | 4.62 | 4 | 0.62 | 3.5 | 2.62 | 2.38 | 0.75 | 1/2 | 2 3/4 | 3 1/4 | 10 | 0.9 | 12 | 1.2 | 36 | 4.4 | 9 |
| 1 1/2 | 1.5 | 1.5 | 5 | 0.69 | 2.88 | 2.62 | 3 | 5 | 4 | 0.62 | 3.88 | 3 | 2.62 | 0.75 | 1/2 | 2 3/4 | 3 1/4 | 12 | 1 | 16 | 1.5 | 41 | 5.1 | 9 |
| 2 | 2 | 1.94 | 6 | 0.75 | 3.62 | 3.06 | 3.69 | 6 | 4 | 0.75 | 4.75 | 3.69 | 3.06 | 0.88 | 5/8 | 3 1/4 | 3 3/4 | 15 | 1.2 | 23 | 2.2 | 57 | 7.1 | 9 |
| 2 1/2 | 2.5 | 2.32 | 7 | 0.88 | 4.12 | 3.75 | 4.44 | 7 | 4 | 0.75 | 5.5 | 4.44 | 3.75 | 0.88 | 5/8 | 3 1/2 | 4 | 22 | 1.7 | 34 | 3.2 | 79 | 10 | 9 |
| 3 | 3 | 2.9 | 7.5 | 0.94 | 5 | 4.25 | 4.94 | 7.5 | 4 | 0.75 | 6 | 4.94 | 4.25 | 0.88 | 5/8 | 3 1/2 | 4 1/4 | 25 | 2 | 38 | 3.6 | 86 | 11 | 9 |
| 3 1/2 | 3.5 | 3.36 | 8.5 | 0.94 | 5.5 | 4.88 | 5.94 | 8.5 | 8 | 0.75 | 7 | 5.94 | 4.88 | 0.88 | 5/8 | 3 1/2 | 4 1/4 | 32 | 2.6 | 55 | 5.3 | 110 | 13 | 9 |
| 4 | 4 | 3.83 | 9 | 0.94 | 6.19 | 5.5 | 6.44 | 9 | 8 | 0.75 | 7.5 | 6.44 | 5.5 | 0.88 | 5/8 | 3 1/2 | 4 1/4 | 47 | 3.2 | 78 | 6 | 164 | 14 | 12 |
| 5 | 5 | 4.81 | 10 | 0.94 | 7.31 | 6.50 | 7.25 | 10 | 8 | 0.88 | 8.5 | 7.25 | 6.50 | 1 | 3/4 | 3 3/4 | 4 1/2 | 57 | 3.8 | 87 | 6.50 | 189 | 17 | 12 |
| 6 | 6 | 5.76 | 11 | 1 | 8.5 | 7.75 | 8.25 | 11 | 8 | 0.88 | 9.5 | 8.25 | 7.75 | 1 | 3/4 | 4 | 4 1/2 | 75 | 5.4 | 103 | 7.8 | 216 | 19 | 12 |
| 8 | 8 | 7.62 | 13.5 | 1.12 | 10.62 | 9.75 | 10.5 | 13.5 | 8 | 0.88 | 11.75 | 10.5 | 9.75 | 1 | 3/4 | 4 1/4 | 4 3/4 | 102 | 6.9 | 157 | 11 | 292 | 26 | 12 |
| 10 | 10 | 9.56 | 16 | 1.19 | 12.75 | 12 | 12.81 | 16 | 12 | 1 | 14.25 | 12.81 | 12 | 1.12 | 7/8 | 4 3/4 | 5 1/4 | 143 | 9.8 | 214 | 16 | 382 | 35 | 12 |
| 12 | 12 | 11.38 | 19 | 1.25 | 15 | 14.38 | 15.56 | 19 | 12 | 1 | 17 | 15.56 | 14.38 | 1.12 | 7/8 | 4 3/4 | 5 1/2 | 205 | 14 | 329 | 25 | 535 | 48 | 12 |
| 14 | 14 | 14 | 21 | 1.38 | 16.25 | 16 | 17.12 | 21 | 12 | 1.12 | 18.75 | 17.12 | 16 | 1.25 | 1 | 5 1/4 | 6 | 211 | 13 | 296 | 22 | 585 | 55 | 12 |
| 16 | 16 | 16 | 23.5 | 1.44 | 18.5 | 18 | 19.62 | 23.5 | 16 | 1.12 | 21.25 | 19.62 | 18 | 1.25 | 1 | 5 1/2 | 6 | 246 | 15 | 388 | 29 | 714 | 66 | 12 |
| 18 | 18 | 18 | 25 | 1.56 | 21 | 20 | 20.94 | 25 | 16 | 1.25 | 22.75 | 20.94 | 20 | 1.38 | 1 1/8 | 6 | 6 1/2 | 270 | 17 | 362 | 25 | 711 | 67 | 12 |
| 20 | 20 | 20 | 27.5 | 1.69 | 23 | 22 | 23.19 | 27.5 | 20 | 1.25 | 25 | 23.19 | 22 | 1.38 | 1 1/8 | 6 1/4 | 7 | 311 | 19 | 434 | 31 | 840 | 79 | 12 |
| 24 | 24 | 24 | 32 | 1.88 | 27.25 | 26.25 | 27.5 | 32 | 20 | 1.38 | 29.5 | 27.5 | 26.25 | 1.5 | 1 1/4 | 7 | 7 3/4 | 423 | 25 | 574 | 40 | 1046 | 100 | 12 |
Dimensions are in inches. Weights are in pounds.
| Other Diameters | |||||||
| Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 | |
| 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 |
| Stainless Steel Long Weld Neck Flanges | USD $2.07 - $10.08 / Piece (FOB Price) on request |
| High Nickel Alloys Long Weld Neck Flanges | USD $8.12 - $20.22 / Piece (FOB Price) on request |
| Duplex & Super Duplex Long Weld Neck Flanges | USD $10.22 - $35.52 / Piece (FOB Price) on request |
| Cupro Nickel Long Weld Neck Flanges | USD $5.21 - $10.50 / Piece (FOB Price) on request |
| >Carbon Steel Long Weld Neck Flanges | USD $2.10 - $7.12 / Piece (FOB Price) on request |
Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All pipes are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.
At JF Engineering Products LLP, all fasteners are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.
Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If fastener is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs.
JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality fasteners to meet the customer ultimate requirements in the fields of:
