Long Weld Neck Flanges
Category: INDUSTRIAL FLANGE

Long Weld Neck Flanges

ASME B16.47 / ANSI / ASME B16.5 Long Weld Neck Flange Manufacturer

ASME B16.47 Long Weld Neck Flange Suppliers, Series A, and Series B Long Weld Neck Flange, BS10 Long Weld Neck Flange, AWWA C207 Long Weld Neck Flange, EN 1092-1 Long Weld Neck Flange Price List. ANSI B16.5 Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 Long Weld Neck Flanges Manufacturer in India

  • Long Weld Neck Flange Tolerances & Weight Chart
  • ANSI B16.5 Long Weld Neck Flange Specifications
  • Why Choos Masiva Solutions
  • ASME B16.47 Long Weld Neck Flange Materials
  • Long Weld Neck Flange Manufacturing Process
  • Long Weld Neck Flange Application Industries
  • ASME B16.5 Long Weld Neck Flange Inspection
  • Long Weld Neck Flange Packing & Forwarding
  • LWN Flange Export & Supply Country List
  • Long Weld Neck Flange Export & Supply City List
  • Long Weld Neck Flange Class 150 Dimensions
  • Long Weld Neck Flange Class 300 Dimensions
  • Long Weld Neck Flange Class 600 Dimensions
  • Long Weld Neck Flange Class 900 Dimensions
  • Long Weld Neck Flange Class 1500 Dimensions
  • Long Weld Neck Flange Class 2500 Dimensions

Stockists of Long Weld Neck Flange in Duplex Steel, Super Duplex Steel, Stainless Steel, Nickel Alloy, Inconel, Hastelloy, Monel, Titaniun, Incoloy, Copper Nickel, Aluminium, Bronze, Alloy 20, 254 SMO, Mild Steel, Carbon Steel, Alloy Steel, Brass. Long Weld Neck Flange Exporters & Suppliers in South Africa, Malaysia, Singapore, UK, Philippines, Australia and Dubai, UAE.

We are a Manufacturer, Supplier, and Exporter of Long Weld Neck Flanges in hard-to-find metals. Long Weld Neck Flange has a hub that extends from the flange flat surface, which helps in accommodating the pipe more easily. SS Long Weld Neck Flange falls under the group of specialty flange, providing reinforcement in service at higher temperatures within the oil industries. A Long Weld Neck Flange is preferable within the petroleum industry as they operate under fluctuating temperature range.

Long Weld Neck Flange (LWN) is like a typical Welding Neck flange, but the “Neck” is considerably longer. This Long Weld Neck Flange is typically used as a nozzle for a barrel or column. There are Long Weld Neck Heavy Barrel (HB) and thus the Equal LWN Barrel (E), they have a special shape and a thicker “Wall”.

An LWN Flange is additionally called an integral flange it means a welding neck flange features a really long neck. The Welding Neck Flange features a tapered neck and a bevel end which matches butt welding with the matching pipe. But the long weld neck flange features a straight short pipe due to the neck of an extended weld neck flange. Long Weld Neck Flange is used for high-pressure situations, integral hub weld neck flanges are used and for very high-pressure cases Long Weld Neck flange is preferred.

Tolerances of Flanges

Flange Weight Chart

ANSI / ASME B16.5 Long Weld Neck Flange Specifications

  • Flange Size  ½” (15 NB) to 48″ (1200NB)
  • Flange Class  150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40.
  • Flange DIN  DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
  • Flange BS  BS4504 , BS4504, BS1560, BS10
  • Flange Standard  ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
  • Flange Coating/Surface Treatment  Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
  • Flange Connection Type  Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large, Tongue & Groove, Small Tongue & Groove
  • Flange Face Type  Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
  • Flange Dimensions  ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • Flange JIS  5K, 10K, 16K, 20K, 30K, 40K, 63K
  • Flange UNI  6Bar 10Bar 16Bar 25Bar 40Bar
  • Flange Coating  Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
  • Production technique  Forged, Heat treated and machined
  • Test Certificates  EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc
  • Flange Test  Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
  • Equipment  Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
  • Flange Origin  Indian / West Europe / Japan / USA / Korean

Long Weld Neck Flanges Class 150 Dimensions

Dimensions are in inches. Weights are in pounds.

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

Long Weld Neck Flanges Class 300 Dimensions

Dimensions are in inches. Weights are in pounds.

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk RF of OD LWN HB E # ofHoles 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 3.75 0.56 1.38 1.5 1.75 3.75 4 0.62 2.62 1.75 1.5 0.75 1/2 2 1/2 3 5 0.4 7 0.6 24 3.1 9
 3/4 0.75 0.74 4.62 0.62 1.69 1.88 2.19 4.62 4 0.75 3.25 2.19 1.88 0.88 5/8 3 3 1/2 9 0.7 11 0.9 37 4.6 9
1 1 0.96 4.88 0.69 2 2.12 2.44 4.88 4 0.75 3.5 2.44 2.12 0.88 5/8 3 1/4 3 1/2 9 0.8 12 1.1 40 5.1 9
1 1/4 1.25 1.28 5.25 0.75 2.5 2.5 2.81 5.25 4 0.75 3.88 2.81 2.5 0.88 5/8 3 1/4 3 3/4 13 1 15 1.4 45 5.8 9
1 1/2 1.5 1.5 6.12 0.81 2.88 2.75 3.25 6.12 4 0.88 4.5 3.25 2.75 1 3/4 3 1/2 4 15 1.2 21 1.9 61 7.8 9
2 2 1.94 6.5 0.88 3.62 3.31 3.94 6.5 8 0.75 5 3.94 3.31 0.88 5/8 3 1/2 4 1/4 20 1.5 28 2.6 68 8.5 9
2 1/2 2.5 2.32 7.5 1 4.12 3.94 4.62 7.5 8 0.88 5.88 4.62 3.94 1 3/4 4 4 1/2 25 2.1 38 3.6 89 11 9
3 3 2.9 8.25 1.12 5 4.62 5.38 8.25 8 0.88 6.62 5.38 4.62 1 3/4 4 1/4 5 35 2.7 49 4.6 106 13 9
3 1/2 3.5 3.36 9 1.19 5.5 5.25 6 9 8 0.88 7.25 6 5.25 1 3/4 4 1/4 5 42 3.4 59 5.5 122 15 9
4 4 3.83 10 1.25 6.19 5.75 6.62 10 8 0.88 7.88 6.62 5.75 1 3/4 4 1/2 5 1/4 62 3.8 91 6.5 207 19 12
5 5 4.81 11 1.38 7.31 7 8 11 8 0.88 9.25 8 7 1 3/4 4 3/4 5 1/4 84 5.3 124 9.1 241 21 12
6 6 5.76 12.5 1.44 8.5 8.12 9.38 12.5 12 0.88 10.62 9.38 8.12 1 3/4 4 3/4 5 3/4 105 6.7 165 12 303 27 12
8 8 7.62 15 1.62 10.62 10.25 11.56 15 12 1 13 11.56 10.25 1.12 7/8 5 1/2 6 1/4 148 9.1 228 17 405 36 12
10 10 9.56 17.5 1.88 12.75 12.62 13.62 17.5 16 1.12 15.25 13.62 12.62 1.25 1 6 1/4 7 1/4 210 13 291 21 499 46 12
12 12 11.38 20.5 2 15 14.75 15.94  20.5 16 1.25 17.75 15.94 14.75 1.38 1 1/8 6 3/4 7 1/2 275 16 392 28 651 61 12
14 14 14 23 2.12 16.25 16.75 18.44 23 20 1.25 20.25 18.44 16.75 1.38 1 1/8 7 7 3/4 324 19 456 32 785 74 12
16 16 16 25.5 2.25 18.5 19 20.5 25.5 20 1.38 22.5 20.5 19 1.5 1 1/4 7 1/2 8 1/2 404 23 529 37 914 88 12
18 18 18 28 2.38 21 21 22.75 28 24 1.38 24.75 22.75 21 1.5 1 1/4 7 3/4 8 1/4 465 26 630 43 1066 102 12
20 20 20 30.5 2.5 23 23.12 25 30.5 24 1.38 27 25 23.12 1.5 1 1/4 8 1/4 9 1/4 549 30 741 50 1228 118 12
24 24 24 36 2.75 27.25 27.62 29.62 36 24 1.62 32 29.62 27.62 1.75 1 1/2 9 1/4 10 1/4 778 42 1016 67 1627 160 12

Long Weld Neck Flanges Class 600 Dimensions

Dimensions are in inches. Weights are in pounds.

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk RF of OD LWN HB E # ofHoles 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 3.75 0.56 1.38 1.5 1.75 3.75 4 0.62 2.62 1.75 1.5 0.75 1/2 3 3 5 0.4 7 0.6 24 3.1 9
 3/4 0.75 0.74 4.62 0.62 1.69 1.88 2.19 4.62 4 0.75 3.25 2.19 1.88 0.88 5/8 3 1/2 3 1/2 8 0.7 11 0.9 36 4.6 9
1 1 0.96 4.88 0.69 2 2.12 2.44 4.88 4 0.75 3.5 2.44 2.12 0.88 5/8 3 1/2 3 1/2 9 0.8 12 1.1 39 5.1 9
1 1/4 1.25 1.28 5.25 0.81 2.5 2.5 2.81 5.25 4 0.75 3.88 2.81 2.5 0.88 5/8 3 3/4 3 3/4 13 1 15 1.4 44 5.8 9
1 1/2 1.5 1.5 6.12 0.88 2.88 2.75 3.25 6.12 4 0.88 4.5 3.25 2.75 1 3/4 4 1/4 4 1/4 16 1.2 21 1.9 59 7.8 9
2 2 1.94 6.5 1 3.62 3.31 3.94 6.5 8 0.75 5 3.94 3.31 0.88 5/8 4 1/4 4 1/4 20 1.5 29 2.6 67 8.5 9
2 1/2 2.5 2.32 7.5 1.12 4.12 3.94 4.62 7.5 8 0.88 5.88 4.62 3.94 1 3/4 5 4 3/4 27 2.1 39 3.6 85 11 9
3 3 2.9 8.25 1.25 5 4.62 5.38 8.25 8 0.88 6.62 5.38 4.62 1 3/4 5 5 1/4 36 2.7 50 4.6 104 13 9
3 1/2 3.5 3.36 9 1.38 5.5 5.25 5.81 9 8 1 7.25 5.81 5.25 1.12 7/8 5 1/2 5 1/2 45 3.4 57 5 116 15 9
4 4 3.83 10.75 1.5 6.19 6 7.06 10.75 8 1 8.5 7.06 6 1.12 7/8 5 3/4 6 77 4.5 113 7.8 238 22 12
5 5 4.81 13 1.75 7.31 7.5 8.88 13 8 1.12 10.5 8.88 7.5 1.25 1 6 1/2 6 1/2 123 7 180 12 336 32 12
6 6 5.76 14 1.88 8.5 8.75 9.88 14 12 1.12 11.5 9.88 8.75 1.25 1 6 3/4 7 152 9 207 14 373 36 12
8 8 7.62 16.5 2.19 10.62 10.75 11.94 16.5 12 1.25 13.75 11.94 10.75 1.38 1 1/8 7 3/4 8 207 11 277 19 478 46 12
10 10 9.56 20 2.5 12.75 13.5 15 20 16 1.38 17 15 13.5 1.5 1 1/4 8 1/2 8 3/4 324 18 433 30 683 67 12
12 12 11.38 22 2.62 15 15.75 17.25 22 20 1.38 19.25 17.25 15.75 1.5 1 1/4 8 3/4 9 393 23 533 37 779 76 12
14 14 14 23.75 2.75 16.25 17 18.56 23.75 20 1.5 20.75 18.56 17 1.62 1 3/8 9 1/4 9 1/2 471 21 631 33 1149 82 16
16 16 16 27 3 18.5 19.5 21.38 27 20 1.62 23.75 21.38 19.5 1.75 1 1/2 10 10 1/4 638 28 856 45 1471 105 16
18 18 18 29.25 3.25 21 21.5 23.19 29.25 20 1.75 25.75 23.19 21.5 1.88 1 5/8 10 3/4 11 731 31 941 48 1628 118 16
20 20 20 32 3.5 23 24 25.94 32 24 1.75 28.5 25.94 24 1.88 1 5/8 11 1/2 11 3/4 916 39 1180 61 1920 139 16
24 24 24 37 4 27.25 28.25 30.06 37 24 2 33 30.06 28.25 2.12 1 7/8 13 13 1/2 1210 49 1486 73 2376 176 16

Long Weld Neck Flanges Class 900 Dimensions

Dimensions are in inches. Weights are in pounds.

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk RF of OD LWN HB E # ofHoles 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 4.75 0.88 1.38 1.56 2 4.75 4 0.88 3.25 2 1.56 1 3/4 4 1/4 4 1/4 8 0.5 10 0.8 37 5 9
 3/4 0.75 0.74 5.12 1 1.69 1.81 2.25 5.12 4 0.88 3.5 2.25 1.81 1 3/4 4 1/2 4 1/2 10 0.6 13 1 42 5.7 9
1 1 0.96 5.88 1.12 2 2.12 2.56 5.88 4 1 4 2.56 2.12 1.12 7/8 5 5 13 0.8 17 1.3 54 7.5 9
1 1/4 1.25 1.28 6.25 1.12 2.5 2.5 2.94 6.25 4 1 4.38 2.94 2.5 1.12 7/8 5 5 17 1 20 1.6 61 8.3 9
1 1/2 1.5 1.5 7 1.25 2.88 2.75 3.25 7 4 1.12 4.88 3.25 2.75 1.25 1 5 1/2 5 1/2 21 1.2 26 1.9 77 10 9
2 2 1.94 8.5 1.5 3.62 4.12 5.06 8.5 8 1 6.5 5.06 4.12 1.12 7/8 5 3/4 5 3/4 42 2.9 56 4.9 115 15 9
2 1/2 2.5 2.32 9.62 1.62 4.12 4.88 5.88 9.62 8 1.12 7.5 5.88 4.88 1.25 1 6 1/4 6 1/4 56 3.9 75 6.5 144 19 9
3 3 2.9 9.5 1.5 5 5 6.06 9.5 8 1 7.5 6.06 5 1.12 7/8 5 3/4 5 3/4 51 3.6 71 6.3 139 18 9
4 4 3.83 11.5 1.75 6.19 6.25 7.44 11.5 8 1.25 9.25 7.44 6.25 1.38 1 1/8 6 3/4 6 3/4 93 5.1 133 9.1 270 26 12
5 5 4.81 13.75 2 7.31 7.5 9 13.75 8 1.38 11 9 7.5 1.5 1 1/4 7 1/2 7 1/2 135 7 194 13 376 37 12
6 6 5.76 15 2.19 8.5 9.25 10.69 15 12 1.25 12.5 10.69 9.25 1.38 1 1/8 7 1/2 7 3/4 191 11 259 18 436 42 12
8 8 7.62 18.5 2.5 10.62 11.75 13.31 18.5 12 1.5 15.5 13.31 11.75 1.62 1 3/8 8 3/4 8 3/4 297 16 389 27 626 62 12
10 10 9.56 21.5 2.75 12.75 14.5 16.31 21.5 16 1.5 18.5 16.31 14.5 1.62 1 3/8 9 1/4 9 1/4 422 25 558 39 824 81 12
12 12 11.38 24 3.12 15 16.5 18.81 24 20 1.5 21 18.81 16.5 1.62 1 3/8 10 10 518 29 715 50 984 96 12
14 14 14 25.25 3.38 16.25 17.75 19.62 25.25 20 1.62 22 19.62 17.75 1.75 1 1/2 10 3/4 11 624 26 817 42 1368 98 16
16 16 16 27.75 3.5 18.5 20 21.69 27.75 20 1.75 24.25 21.69 20 1.88 1 5/8 11 1/4 11 1/2 750 32 942 48 1573 114 16
18 18 18 31 4 21 22.25 24.06 31 20 2 27 24.06 22.25 2.12 1 7/8 12 3/4 13 1/4 950 38 1169 57 1898 142 16
20 20 20 33.75 4.25 23 24.5 26.38 33.75 20 2.12 29.5 26.38 24.5 2.25 2 13 3/4 14 1/4 1121 43 1378 66 2182 164 16
24 24 24 41 5.5 27.25 29.5 31.62 41 20 2.62 35.5 31.62 29.5 2.75 2 1/2 17 1/4 18 1865 65 2160 94 3084 246 16

Long Weld Neck Flanges Class 1500 Dimensions

Dimensions are in inches. Weights are in pounds.

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk RF of OD LWN HB E # ofHoles 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 4.75 0.88 1.38 1.56 2 4.75 4 0.88 3.25 2 1.56 1 3/4 4 1/4 4 1/4 8 0.5 10 0.8 37 5 9
 3/4 0.75 0.74 5.12 1 1.69 1.81 2.25 5.12 4 0.88 3.5 2.25 1.81 1 3/4 4 1/2 4 1/2 10 0.6 13 1 42 5.7 9
1 1 0.96 5.88 1.12 2 2.12 2.56 5.88 4 1 4 2.56 2.12 1.12 7/8 5 5 13 0.8 17 1.3 54 7.5 9
1 1/4 1.25 1.28 6.25 1.12 2.5 2.5 2.94 6.25 4 1 4.38 2.94 2.5 1.12 7/8 5 5 17 1 20 1.6 61 8.3 9
1 1/2 1.5 1.5 7 1.25 2.88 2.75 3.25 7 4 1.12 4.88 3.25 2.75 1.25 1 5 1/2 5 1/2 21 1.2 26 1.9 77 10 9
2 2 1.94 8.5 1.5 3.62 4.12 5.06 8.5 8 1 6.5 5.06 4.12 1.12   7/8 5 3/4 5 3/4 42 2.9 56 4.9 115 15 9
2 1/2 2.5 2.32 9.62 1.62 4.12 4.88 5.88 9.62 8 1.12 7.5 5.88 4.88 1.25 1 6 1/4 6 1/4 56 3.9 75 6.5 144 19 9
3 3 2.9 10.5 1.88 5 5.25 6.19 10.5 8 1.25 8 6.19 5.25 1.38 1 1/8 7 7 67 4.1 84 6.7 161 23 9
4 4 3.83 12.25 2.12 6.19 6.38 7.5 12.25 8 1.38 9.5 7.5 6.38 1.5 1 1/4 7 3/4 7 3/4 110 5.5 147 9.3 302 30 12
5 5 4.81 14.75 2.88 7.31 7.75 9.12 14.75 8 1.62 11.5 9.12 7.75 1.75 1 1/2 9 3/4 9 3/4 181 7.8 233 13 414 43 12
6 6 5.76 15.5 3.25 8.5 9 10.31 15.5 12 1.5 12.5 10.31 9 1.62 1 3/8 10 1/4 10 1/2 215 10 272 16 445 46 12
8 8 7.62 19 3.62 10.62 11.5 12.94 19 12 1.75 15.5 12.94 11.5 1.88 1 5/8 11 1/2 12 3/4 337 15 417 24 629 67 12
10 10 9.56 23 4.25 12.75 14.5 16.06 23 12 2 19 16.06 14.5 2.12 1 7/8 13 1/4 13 1/2 546 25 651 37 888 97 12
12 12 11.38 26.5 4.88 15 17.75 19.38 26.5 16 2.12 22.5 19.38 17.75 2.25 2 14 3/4 15 1/4 946 38 1148 55 1683 127 16
14 14 14 29.5 5.25 16.25 19.5 21.5 29.5 16 2.38 25 21.5 19.5 2.5 2 1/4 16 16 3/4 1116 41 1308 59 1929 150 16
16 16 16 32.5 5.75 18.5 21.75 23.88 32.5 16 2.62 27.75 23.88 21.75 2.75 2 1/2 17 1/2 18 1/2 1371 48 1588 70 2238 178 16
18 18 18 36 6.38 21 23.5 26.25 36 16 2.88 30.5 26.25 23.5 3 2 3/4 19 1/2 20 3/4 1674 51 1959 81 2629 216 16
20 20 20 38.75 7 23 25.25 28.12 38.75 16 3.12 32.75 28.12 25.25 3.25 3 21 1/4 22 1/4 1943 53 2241 87 2868 245 16
24 24 24 46 8 27.25 30 33.62 46 16 3.62 39 33.62 30 3.75 3 1/2 24 1/4 25 1/2 2936 72 3334 123 3819 343 16

Long Weld Neck Flanges Class 2500 Dimensions

Dimensions are in inches. Weights are in pounds.

Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore LWN & E Bore HB OD Thk RF of OD LWN HB E # ofHoles 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 5.25 1.19 1.38 1.81 2.25 5.25 4 0.88 3.5 2.25 1.81 1 3/4 4 3/4 4 3/4 11 0.7 14 1.1 45 6.1 9
 3/4 0.75 0.74 5.5 1.25 1.69 2.06 2.5 5.5 4 0.88 3.75 2.5 2.06 1 3/4 5 5 13 0.8 17 1.3 49 6.6 9
1 1 0.96 6.25 1.38 2 2.25 2.81 6.25 4 1 4.25 2.81 2.25 1.12 7/8 5 1/2 5 1/2 18 0.9 22 1.6 62 8.5 9
1 1/4 1.25 1.28 7.25 1.5 2.5 2.88 3.5 7.25 4 1.12 5.12 3.5 2.88 1.25 1 6 6 27 1.5 32 2.4 84 11 9
1 1/2 1.5 1.5 8 1.75 2.88 3.12 3.94 8 4 1.25 5.75 3.94 3.12 1.38 1 1/8 6 3/4 6 3/4 33 1.7 42 3 94 14 9
2 2 1.94 9.25 2 3.62 3.75 5.12 9.25 8 1.12 6.75 5.12 3.75 1.25 1 7 7 48 2.2 66 5 131 18 9
2 1/2 2.5 2.32 10.5 2.25 4.12 4.5 5.94 10.5 8 1.25 7.75 5.94 4.5 1.38 1 1/8 7 3/4 8 66 3.1 90 6.7 165 23 9
3 3 2.9 12 2.62 5 5.25 7 12 8 1.38 9 7 5.25 1.5 1 1/4 8 3/4 9 97 4.1 127 9 210 30 9
4 4 3.83 14 3 6.19 6.5 8.38 14 8 1.62 10.75 8.38 6.5 1.75 1 1/2 10 10 1/4 159 5.8 218 12 391 40 12
5 5 4.81 16.5 3.62 7.31 8 10 16.5 8 1.88 12.75 10 8 2 1 3/4 11 3/4 12 1/4 248 8.7 319 17 518 55 12
6 6 5.76 19 4.25 8.5 9.25 11.38 19 8 2.12 14.5 11.38 9.25 2.25 2 13 1/2 14 358 11 441 21 641 73 12
8 8 7.62 21.75 5 10.62 12 14.12 21.75 12 2.12 17.25 14.12 12 2.25 2 15 15 1/2 589 18 743 31 1167 92 16
10 10 9.56 26.5 6.5 12.75 14.75 17.38 26.50 12 2.62 21.25 17.38 14.75 2.75 2 1/2 19 1/4 20 997 26 1202 47 1625 134 16
12 12 11.38 30 7.25 15 17.38 20.12 30 12 2.88 24.38 20.12 17.38 3 2 3/4 21 1/4 22 1363 35 1609 61 1995 168 16

Why Masiva Solutions

  • Quality Products:
    • Raw Materials are adeuately tested
    • Conformaity to ASTM, ASME, DIN, EN, JIS.
    • Marking, Heat Number. Specificatios
    • 100% Radiography Test Report
    • Third Party Inspection, Buyer Inspection
  • Value Added Services:
    • Epoxy & fbe coating
    • Hot dipped galvanizing.
    • Sand blasting
    • Electro polish or other special finishes
    • Custom shape cutting, fabrication services
    • Threading, soldering
  • Manufacturing Expertise:
    • Custom size flanges
    • High quality Industrial Flanges manufacturer.
    • Accurate dimensions
    • Products with unifrom wall thickness
    • We use top quality raw materials
    • Over 10 years of manufacturing experience

Long Weld Neck Flanges Materials

Most common materials used in the production of Long Weld Neck Flanges are Carbon Steel, Stainless Steel, Duplex Steel, Nickel Alloys. Complete list of grades, materials, and manufacturing standards are given below.

Carbon Steel Long Weld Neck Flanges:

  • High Temperature Carbon Steel ASTM A105: A53, A106, API 5L
  • Low Temperature Carbon Steel ASTM A350: LF1, LF2, LF3
  • High Yield Carbon Steel ASTM A694: F42, F52, F60, F65

Alloy Steel Long Weld Neck Flanges:

  • Alloy Steel ASTM A182: F5, F9, F11, F22, F1, F5/F5a, F91

Stainless Steel Long Weld Neck Flanges:

  • Stainless Steel ASTM A182: F304, F304H, F304L, F304N, F304LN, F309H, F310, F310H, F310MoLN, F316, F316H, F316L, F316N, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348, F348H, 904L

Duplex Steel Long Weld Neck Flanges:

  • Duplex Steel ASTM A182: Duplex 2205 (UNS S31803 – UNS S32205)
  • Super Duplex ASTM A182: UNS S32750 – UNS S32760

Nickel Alloy Long Weld Neck Flanges:

  • ASTM B160: Nickel 200 Flange | Nickel 201
  • ASTM B166: Inconel 600 Flange
  • ASTM B564: Inconel 625 Flange
  • ASTM B425: Incoloy 800 Flange
  • ASTM B564: Incoloy 825 Flange
  • ASTM B564: Monel K400 Flange | Monel 400
  • ASTM B564: Hastelloy C276 Flange | Hastelloy B, Hastelloy D, Hastelloy C-276, Hastelloy G

ANSI B16.5 Long Weld Neck Flanges Manufacturing Process

ASME B16.47 Long Weld Neck Flanges Application Industries

  • Refineries
  • Food Processing & Dairy
  • Oil and Gas Industry
  • Off-Shore Oil Drilling Companies
  • Pharmaceutical Equipment
  • Pulp & Paper Industry
  • Power Generation
  • Specialty Chemicals
  • Sea Water Equipment
  • Gas Processing
  • Chemical Equipment
  • Heat Exchangers
  • Petrochemicals
  • Pharmaceuticals
  • Condensers

ASME B16.47 / ANSI B16.5 Long Weld Neck Flanges Inspection

Our qualified inspection engineer performed inspection on Long Weld Neck Flanges based on reference standards of ASME B31.1, B31.3, B16.5, ASME II , V , VIII , IX , DIN, AS/NZ standards etc. A visual test performed to identify surface porosity, cracks, and open structure defects. A dimensional inspection performed to confirm that the different types of flange, in this case its Long Weld Neck Flange, Raised Face Long Weld Neck Flange, Flat Face Long Weld Neck Flange, etc. are manufactured according to the ASME Specification, that specifies the dimensions and indicates the design tolerances. A tensile test is conducted to test the yield strength, the tensile strength, and the elongation restrictions. A hardness test is conducted to check micro-hardness and surface hardness to confirm the acid environment performance and material performance. Magnetic particle inspection is performed to detect locating surface and near subsurface discontinuities in ferromagnetic materials, if some surface cracks, folds, thrust fault, pit or gas hole.

ANSI B16.5 Long Weld Neck Flanges Packing & Forwarding

We follow the packing procedure of Long Weld Neck Flanges to insure damage free delivery of BS10 Long Weld Neck Flange to our valuable customers in India and overseas. usually the packing way include wooden pallet, wooden box, iron & steel pallet, iron & steel cage etc. Because of the normal wooden pallets or wooden boxes have to do fumigation treatment, we choose plywood box or case or plywood pallet to pack Series A and Series B Long Weld Neck Flange without fumigation treatment. Whatever plywood or iron & steel packing way, we make sure that it must be strong, seaworthy, waterproof. All details of ASME B16.5 Long Weld Neck Flange are also stick with flanges packing so that it can be easy to understand and we insure that packing can ease the process of loading and unloading of goods.

ASME B16.5 Long Weld Neck Flanges Export & Supply to below mentioned Countries

MIDDLE EAST: Saudi Arabia (KSA), United Arab Emirates (UAE), Iran, Iraq, Jordan, Qatar, Bahrain, Oman, Kuwait, Turkey, Yemen, Syria, Cyprus.
ASIA: Malaysia, India, Taiwan, Cambodia, Singapore, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar.
SOUTH AMERICA: Venezuela, Argentina, Bolivia, Colombia, Ecuador, Guyana, Paraguay, Uruguay, Brazil, Chile.
AFRICA: South Africa, Nigeria, Algeria, Angola, Libya, Egypt, Gabon, Sudan, Equatorial Guinea, The Republic Of Congo.
NORTH AMERICA: USA, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark.
EUROPE: UK, Netherlands, Russia, Norway, Germany, France, Italy, Spain, Ukraine, Belgium, Greece, Hungary, Albania, Austria, Finland, Ireland, Croatia, Slovenia, Malta, Switzerland, Slovakia, Czech Republic, Portugal.

ASME B16.5 Long Weld Neck Flanges Export & Supply to below Mentioned Cities

Mumbai, Thane, Navi Mumbai, Pune, New Delhi, Secunderabad, Gimhae-si, Haryana, Colombo, Lahore, Thiruvananthapuram, Milan, Moscow, Dallas, Coimbatore, Jakarta, Istanbul, Bangkok, Kuwait City, Sharjah, Petaling Jaya, Ernakulam, Abu Dhabi, Tehran, Calgary, Noida, Riyadh, Vung Tau, Al Khobar, Atyrau, Lagos, Ulsan, Faridabad, Houston, Hanoi, Toronto, Hong Kong, Rajkot, Bengaluru, Chennai, Surat, New York, Caracas, Howrah, Sydney, Ahvaz, Karachi, Algiers, Pimpri-Chinchwad, Vadodara, Kolkata, Gurgaon, Ahmedabad, Chiyoda, Dubai, Seoul, Hyderabad, Singapore, Doha, Jeddah, Manama, Montreal, Brisbane, Los Angeles, Ankara, Ho Chi Minh City, Bhopal, Mexico City, Ludhiana, Aberdeen, Cairo, Geoje-si, Perth, Santiago, Chandigarh, Indore, Kuala Lumpur, Rio de Janeiro, Dammam, London, Muscat, Edmonton, Busan, Visakhapatnam, Bogota, Melbourne, Madrid, La Victoria, Granada, Courbevoie, Al Jubail, Port-of-Spain.

 

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Long Weld Neck Flanges Manufacturer in Italy 

Masiva Metal is a trusted Long Weld Neck Flanges manufacturer in Italy, offering high-quality flanges in various materials, sizes, pressure classes and specifications for industrial applications. 

Long Weld Neck Flanges Manufacturer in Belgium 

Masiva Metal is a reliable Long Weld Neck Flanges manufacturer in Belgium, providing quality flanges in different materials, sizes, pressure classes and specifications for industrial requirements. 

Long Weld Neck Flanges Manufacturer in UAE 

Masiva Metal is a trusted Long Weld Neck Flanges manufacturer in UAE, offering durable flanges in various materials, sizes, pressure classes and specifications for industrial applications. 

Long Weld Neck Flanges Manufacturer in Spain 

Masiva Metal is an experienced Long Weld Neck Flanges manufacturer in Spain, offering quality industrial flanges in different materials, sizes, pressure classes and specifications. 

Long Weld Neck Flanges Manufacturer in Germany

Masiva Metal is a trusted Long Weld Neck Flanges manufacturer in Germany, producing high-quality flanges in multiple materials, sizes, pressure classes and specifications for industrial applications. 

Long Weld Neck Flanges Manufacturer in South Korea 

Masiva Metal is a reliable Long Weld Neck Flanges manufacturer in South Korea, offering precision-engineered flanges in different materials, sizes, pressure classes and specifications for industrial use. 

Long Weld Neck Flanges Manufacturer in Vietnam 

Masiva Metal is a trusted Long Weld Neck Flanges manufacturer in Vietnam, offering durable industrial flanges in various materials, sizes, pressure classes and specifications. 

Long Weld Neck Flanges Manufacturer in Philippines 

Masiva Metal is a reliable Long Weld Neck Flanges manufacturer in Philippines, offering quality flanges in different materials, sizes, pressure classes and specifications for industrial applications. 

Long Weld Neck Flanges Manufacturer in Saudi Arabia 

Masiva Metal is a trusted Long Weld Neck Flanges manufacturer in Saudi Arabia, providing quality industrial flanges in multiple materials, sizes, pressure classes and specifications. 

Long Weld Neck Flanges Supplier in Italy 

Masiva Metal is a reliable Long Weld Neck Flanges supplier in Italy, providing quality industrial flanges in multiple materials, sizes, pressure ratings and specifications. 

Long Weld Neck Flanges Supplier in Belgium 

Masiva Metal supplies Long Weld Neck Flanges in Belgium with reliable quality, varied materials, sizes, pressure ratings and specifications for industrial applications. 

Long Weld Neck Flanges Supplier in UAE 

Masiva Metal is a reliable Long Weld Neck Flanges supplier in UAE, offering quality flanges in multiple materials, sizes, pressure ratings and specifications for industrial needs. 

Long Weld Neck Flanges Supplier in Spain 

Masiva Metal supplies Long Weld Neck Flanges in Spain, providing reliable flange solutions in various materials, sizes, pressure ratings and specifications. 

Long Weld Neck Flanges Supplier in Germany 

Masiva Metal is a reliable Long Weld Neck Flanges supplier in Germany, offering quality industrial flanges in various materials, sizes, pressure ratings and specifications. 

Long Weld Neck Flanges Supplier in South Korea 

Masiva Metal supplies Long Weld Neck Flanges in South Korea with quality materials, varied sizes, pressure ratings and specifications for demanding industrial applications. 

Long Weld Neck Flanges Supplier in Vietnam 

Masiva Metal is a reliable Long Weld Neck Flanges supplier in Vietnam, providing quality flanges in multiple materials, sizes, pressure ratings and specifications. 

Long Weld Neck Flanges Supplier in Philippines 

Masiva Metal supplies Long Weld Neck Flanges in the Philippines, offering reliable flange solutions in various materials, sizes, pressure ratings and specifications. 

Long Weld Neck Flanges Supplier in Saudi Arabia 

Masiva Metal is a reliable Long Weld Neck Flanges supplier in Saudi Arabia, offering durable flanges in various materials, sizes, pressure ratings and specifications for industrial requirements. 

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