Ace Alloys LLP

Weld Neck Flanges

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Weld Neck Flanges / WNRF Flanges Suppliers

ANSI B 16.5, ASME B 16.47, MSS SP44, ASTM A182, 105, 350, SB564, 160, 472 Weld Neck Flanges, Raised Welding Neck Pipe Flanges Manufacturer & Exporter in India

Stainless Steel Welded Neck Flanges, Carbon Steel Weld Neck Flanges, Alloy Steel Welding Neck Flanges, Inconel Welding Neck Flanges, Nickel Alloy Weld Neck Flanges Dealer in India

Weld Neck Flanges are special industrial mechanisms which are ideal to use at elevated temperatures and pressures. ACE ALLOYS LLP is an illustrious designer and trader of Weld Neck Pipe Flanges at affordable market prices. Our WNRF Flanges exhibit distinguished properties for which they have a huge demand in the market.

Weld Neck Flanges
Weld Neck Flanges

Our Welding Neck Flanges have various industrial applications for which they are exported to many countries around the globe. Due to the quality and flexibility of our products, we are regarded as one of the renowned Weld Neck Flanges Manufacturers of the contemporary market. Also, our Raised Face Weld Neck Flanges are noted for their ease of installation and durability.

ANSI B16.5 Weld Neck Flanges are generally of regular type and long type. The former ones are used with regular pipes, whereas the latter ones are used with process plant pipes. SS Weld Neck Flanges are also known as SS high hub flanges and SS tapered hub flanges.

We maintain friendly relations with our customers and acquire feedback about our products like Carbon Steel Weld Neck Flanges and Stainless Steel Weld Neck Flanges. The pure metal is used to fabricate Inconel Weld Neck Flanges and Monel Weld Neck Flanges. Our team carefully designs our goods for extreme preciseness in our Weld Neck Flange Dimensions. Every now and then we conduct audits to ensure flawless fabrication of Forged Weld Neck Flanges.

All the properties and features of our ASME B16.5 Weld Neck Flanges along with their respective prices are showcased on our official website. You can also contact our sales individuals in case of any queries. With no more ado, place your order right now!

Weld Neck Flanges Availability:

  • Flate Face Weld Neck Flanges
  • Raised Face Weld Neck Flanges
  • Ring Type Joint Weld Neck Flanges
  • Stainless Steel Weld Neck Flanges
  • Carbon Steel Weld Neck Flanges
  • Alloy Steel Weld Neck Flanges
  • Nickel Alloy Steel Weld Neck Flanges
  • Copper Alloy Weld Neck Flanges
  • Duplex Steel Weld Neck Flanges

Weld Neck Flanges Specifications:

Size ½" (15 NB) to 48" (1200NB)
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Standards ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S BS4504 , BS4504, BS1560, BS10
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Grade Specifications of Weld Neck Flanges

Stainless Steel Weld Neck Raised Face Flanges
Standard ASTM A182 , A240
Grades F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Weld Neck Raised Face Flanges
Standard ASTM A105
Grades Gr. F42,46,52,56,60,65,70
Alloy Steel Weld Neck Raised Face Flanges
Standard ASTM A182
Grades F1,F5,F9,F11,F22,F91
Nickel Alloy Steel Weld Neck Raised Face Flanges
Standard ASTM SB564, SB160, SB472, SB162
Grades Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloy Weld Neck Raised Face Flanges
Standard ASTM SB 61 , SB62 , SB151 , SB152
Grades UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Duplex Steel Slip-On Raised Face Flanges
Standard ASTM A182, A240
Grades UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Weld Neck Flange Dimensions – ANSI/ASME B16.5 Class 150 to Class 2500

Weld Neck Flange Dimension

ANSI/ASME B16.5 Class 150 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 90 9.6 30 21.3 46 34.9 2 60.3 1.6
3/4 20 100 11.2 38 26.7 51 42.9 2 69.9 1.6
1 25 110 12.7 49 33.4 54 50.8 2 79.4 1.6
1 1/4 32 115 14.3 59 42.2 56 63.5 2 88.9 1.6
1 1/2 40 125 15.9 65 48.3 60 73 2 98.4 1.6
2 50 150 17.5 78 60.3 62 92.1 2 120.7 1.6
2 1/2 65 180 20.7 90 73 68 104.8 2 139.7 1.6
3 80 190 22.3 108 88.9 68 127 2 152.4 1.6
3 1/2 90 215 22.3 122 101.6 70 139.7 2 177.8 1.6
4 100 230 22.3 135 114.3 75 157.2 2 190.5 1.6
5 125 255 22.3 164 141.3 87 185.7 2 215.9 1.6
6 150 280 23.9 192 168.3 87 215.9 2 241.3 1.6
8 200 345 27 246 219.1 100 269.9 2 298.5 1.6
10 250 405 28.6 305 273 100 323.8 2 362 1.6
12 300 485 30.2 365 323.8 113 381 2 431.8 1.6
14 350 535 33.4 400 355.6 125 412.8 2 476.3 1.6
16 400 595 35 457 406.4 125 469.9 2 539.8 1.6
18 450 635 38.1 505 457.2 138 533.4 2 577.9 1.6
20 500 700 41.3 559 508 143 584.2 2 635 1.6
24 600 815 46.1 663 610 151 692.2 2 749.3 1.6

ANSI/ASME B16.5 Class 150 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 1/2 50 55 5/8 M14 0.6
3/4 20 4 1/2 50 65 5/8 M14 0.9
1 25 4 1/2 55 65 5/8 M14 1.4
1 1/4 32 4 1/2 55 70 5/8 M14 1.4
1 1/2 40 4 1/2 65 70 5/8 M14 1.8
2 50 4 5/8 70 85 3/4 M16 2.7
2 1/2 65 4 5/8 75 90 3/4 M16 3.7
3 80 4 5/8 75 90 3/4 M16 4.6
3 1/2 90 8 5/8 75 90 3/4 M16 5.5
4 100 8 5/8 75 90 3/4 M16 6.8
5 125 8 3/4 85 95 7/8 M20 8.7
6 150 8 3/4 85 100 7/8 M20 10.9
8 200 8 3/4 90 110 7/8 M20 17.7
10 250 12 7/8 100 115 1 M24 24
12 300 12 7/8 100 120 1 M24 37
14 350 12 1 115 135 1 1/8 M27 50
16 400 16 1 115 135 1 1/8 M27 64
18 450 16 1 1/8 125 145 1 1/4 M30 68
20 500 20 1 1/8 140 160 1 1/4 M30 82
24 600 20 1 1/4 150 170 1 3/8 M33 118

ANSI/ASME B16.5 Class 300 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 95 12.7 38 21.3 51 34.9 2 66.7 1.6
3/4 20 115 14.3 48 26.7 56 42.9 2 82.6 1.6
1 25 125 15.9 54 33.4 60 50.8 2 88.9 1.6
1 1/4 32 135 17.5 64 42.2 64 63.5 2 98.4 1.6
1 1/2 40 155 19.1 70 48.3 67 73 2 114.3 1.6
2 50 165 20.7 84 60.3 68 92.1 2 127 1.6
2 1/2 65 190 23.9 100 73 75 104.8 2 149.2 1.6
3 80 210 27 117 88.9 78 127 2 168.3 1.6
3 1/2 90 230 28.6 133 101.6 79 139.7 2 184.2 1.6
4 100 255 30.2 146 114.3 84 157.2 2 200 1.6
5 125 280 33.4 178 141.3 97 185.7 2 235 1.6
6 150 320 35 206 168.3 97 215.9 2 269.9 1.6
8 200 380 39.7 260 219.1 110 269.9 2 330.2 1.6
10 250 445 46.1 321 273 116 323.8 2 387.4 1.6
12 300 520 49.3 375 323.8 129 381 2 450.8 1.6
14 350 585 52.4 425 355.6 141 412.8 2 514.4 1.6
16 400 650 55.6 483 406.4 144 469.9 2 571.5 1.6
18 450 710 58.8 533 457 157 533.4 2 628.6 1.6
20 500 775 62 587 508 160 584.2 2 685.8 1.6
24 600 915 68.3 702 610 167 692.2 2 812.8 1.6

ANSI/ASME B16.5 Class 300 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC Machine Bolt Length RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 1/2 55 65 5/8 M14 1.4
3/4 20 4 5/8 65 75 3/4 M16 1.4
1 25 4 5/8 65 75 3/4 M16 1.8
1 1/4 32 4 5/8 70 85 3/4 M16 2.3
1 1/2 40 4 3/4 75 90 7/8 M20 3.2
2 50 8 5/8 75 90 3/4 M16 4.1
2 1/2 65 8 3/4 85 100 7/8 M20 5.5
3 80 8 3/4 90 110 7/8 M20 6.8
3 1/2 90 8 3/4 95 110 7/8 M20 8.2
4 100 8 3/4 95 115 7/8 M20 11.4
5 125 8 3/4 110 120 7/8 M20 14.6
6 150 12 3/4 110 120 7/8 M20 19.1
8 200 12 7/8 120 140 1 M24 31
10 250 16 1 140 160 1 1/8 M27 42
12 300 16 1 1/8 145 170 1 1/4 M30 64
14 350 20 1 1/8 160 180 1 1/4 M30 82
16 400 20 1 1/4 165 190 1 3/8 M33 113
18 450 24 1 1/4 170 195 1 3/8 M33 145
20 500 24 1 1/4 185 205 1 3/8 M33 182
24 600 24 1 1/2 205 230 1 5/8 M39 264

ANSI/ASME B16.5 Class 400 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 95 14.3 38 21.3 52 34.9 7 66.7 1.6
3/4 20 115 15.9 48 26.7 57 42.9 7 82.6 1.6
1 25 125 17.5 54 33.4 62 50.8 7 88.9 1.6
1 1/4 32 135 20.7 64 42.2 67 63.5 7 98.4 1.6
1 1/2 40 155 22.3 70 48.3 70 73 7 114.3 1.6
2 50 165 25.4 84 60.3 73 92.1 7 127 1.6
2 1/2 65 190 28.6 100 73 79 104.8 7 149.2 1.6
3 80 210 31.8 117 88.9 83 127 7 168.3 1.6
3 1/2 90 230 35 133 101.6 86 139.7 7 184.2 1.6
4 100 255 35 146 114.3 89 157.2 7 200 1.6
5 125 280 38.1 178 141.3 102 185.7 7 235 1.6
6 150 320 41.3 206 168.3 103 215.9 7 269.9 1.6
8 200 380 47.7 260 219.1 117 269.9 7 330 1.6
10 250 445 54 321 273 124 323.8 7 387.4 1.6
12 300 520 57.2 375 323.8 137 381 7 450.8 1.6
14 350 585 60.4 425 355.6 149 412.8 7 514.4 1.6
16 400 650 63.5 483 406.4 152 469.9 7 571.5 1.6
18 450 710 66.7 533 457 165 533.4 7 628.6 1.6
20 500 775 69.9 587 508 168 584.2 7 685.8 1.6
24 600 915 76.2 702 610 175 692.2 7 812.8 1.6

ANSI/ASME B16.5 Class 400 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size
1/2 15 4 1/2 75 5/8 M14
3/4 20 4 5/8 90 3/4 M16
1 25 4 5/8 90 3/4 M16
1 1/4 32 4 5/8 95 3/4 M16
1 1/2 40 4 3/4 110 7/8 M20
2 50 8 5/8 110 3/4 M16
2 1/2 65 8 3/4 120 7/8 M20
3 80 8 3/4 125 7/8 M20
3 1/2 90 8 7/8 140 1 M24
4 100 8 7/8 140 1 M24
5 125 8 7/8 145 1 M24
6 150 12 7/8 150 1 M24
8 200 12 1 170 1 1/8 M27
10 250 16 1 1/8 190 1 1/4 M30
12 300 16 1 1/4 205 1 3/8 M33
14 350 20 1 1/4 210 1 3/8 M33
16 400 20 1 3/8 220 1 1/2 M36
18 450 24 1 3/8 230 1 1/2 M36
20 500 24 1 1/2 240 1 3/4 M39
24 600 24 1 3/4 265 1 7/8 M45

ANSI/ASME B16.5 Class 600 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 95 14.3 38 21.3 52 34.9 7 66.7 1.6
3/4 20 115 15.9 48 26.7 57 42.9 7 82.6 1.6
1 25 125 17.5 54 33.4 62 50.8 7 88.9 1.6
1 1/4 32 135 20.7 64 42.2 67 63.5 7 98.4 1.6
1 1/2 40 155 22.3 70 48.3 70 73 7 114.3 1.6
2 50 165 25.4 84 60.3 73 92.1 7 127 1.6
2 1/2 65 190 28.6 100 73 79 104.8 7 149.2 1.6
3 80 210 31.8 117 88.9 83 127 7 168.3 1.6
3 1/2 90 230 35 133 101.6 86 139.7 7 184.2 1.6
4 100 275 38.1 152 114.3 102 157.2 7 215.9 1.6
5 125 330 44.5 189 141.3 114 185.7 7 266.7 1.6
6 150 355 47.7 222 168.3 117 215.9 7 292.1 1.6
8 200 420 55.6 273 219.1 133 269.9 7 349.2 1.6
10 250 510 63.5 343 273 152 323.8 7 431.8 1.6
12 300 560 66.7 400 323.8 156 381 7 489 1.6
14 350 605 69.9 432 355.6 165 412.8 7 527 1.6
16 400 685 76.2 495 406.4 178 469.9 7 603.2 1.6
18 450 745 82.6 546 457 184 533.4 7 654 1.6
20 500 815 88.9 610 508 190 584.2 7 723.9 1.6
24 600 940 101.6 718 610 203 692.2 7 1.6

ANSI/ASME B16.5 Class 600 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 1/2 75 5/8 M14 1.5
3/4 20 4 5/8 90 3/4 M16 1.8
1 25 4 5/8 90 3/4 M16 1.8
1 1/4 32 4 5/8 95 3/4 M16 2.7
1 1/2 40 4 3/4 110 7/8 M20 3.7
2 50 8 5/8 110 3/4 M16 5.5
2 1/2 65 8 3/4 120 7/8 M20 8.2
3 80 8 3/4 125 7/8 M20 10.5
3 1/2 90 8 7/8 140 1 M24 11.8
4 100 8 7/8 145 1 M24 19.1
5 125 8 1 165 1 1/8 M27 31
6 150 12 1 170 1 1/8 M27 36
8 200 12 1 1/8 190 1 1/4 M30 55
10 250 16 1 1/4 215 1 3/8 M33 86
12 300 20 1 1/4 220 1 3/8 M33 102
14 350 20 1 3/8 235 1 1/2 M36 127
16 400 20 1 1/2 255 1 5/8 M39 177
18 450 20 1 5/8 275 1 3/4 M42 216
20 500 24 1 5/8 285 1 3/4 M42 268
24 600 24 1 7/8 330 2 M48 377

ANSI/ASME B16.5 Class 900 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 120 22.3 38 21.3 60 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 240 38.1 127 88.9 102 127 7 190.5 1.6
4 100 290 44.5 159 114.3 114 157.2 7 235 1.6
5 125 350 50.8 190 141.3 127 185.7 7 279.4 1.6
6 150 380 55.6 235 168.3 140 215.9 7 317.5 1.6
8 200 470 63.5 298 219.1 162 269.9 7 393.7 1.6
10 250 545 69.9 368 273 184 323.8 7 469.9 1.6
12 300 610 79.4 419 323.8 200 381 7 533.4 1.6
14 350 640 85.8 451 355.6 213 412.8 7 558.8 1.6
16 400 705 88.9 508 406.4 216 469.9 7 616 1.6
18 450 785 101.6 565 457 229 533.4 7 685.8 1.6
20 500 855 108 622 508 248 584.2 7 749.3 1.6
24 600 1040 139.7 749 610 292 692.2 7 901.7 1.6

ANSI/ASME B16.5 Class 900 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 3/4 110 7/8 M20 2.3
3/4 20 4 3/4 115 7/8 M20 2.7
1 25 4 7/8 125 1 M24 4.1
1 1/4 32 4 7/8 125 1 M24 4.6
1 1/2 40 4 1 140 1 1/8 M27 5.9
2 50 8 7/8 145 1 M24 11.5
2 1/2 65 8 1 160 1 1/8 M27 16.5
3 80 8 7/8 145 1 M24 14
4 100 8 1 1/8 170 1 1/4 M30 23
5 125 8 1 1/4 190 1 3/8 M33 39.5
6 150 12 1 1/8 190 1 1/4 M30 50
8 200 12 1 3/8 220 1 1/2 M36 80
10 250 16 1 3/8 235 1 1/2 M36 118
12 300 20 1 3/8 255 1 1/2 M36 148
14 350 20 1 1/2 275 1 5/8 M39 182
16 400 20 1 5/8 285 1 3/4 M42 225
18 450 20 1 7/8 325 2 M48 300
20 500 20 2 350 2 1/8 M52 373
24 600 20 2 1/2 440 2 5/8 M64 680

ANSI/ASME B16.5 Class 1500 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 120 22.3 38 21.3 60 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 265 47.7 133 88.9 117 127 7 203.2 1.6
4 100 310 54 162 114.3 124 157.2 7 241.3 1.6
5 125 375 73.1 197 141.3 156 185.7 7 292.1 1.6
6 150 395 82.6 229 168.3 171 215.9 7 317.5 1.6
8 200 485 92.1 292 219.1 213 269.9 7 393.7 1.6
10 250 585 108 368 273 254 323.8 7 482.6 1.6
12 300 675 123.9 451 323.8 283 381 7 571.5 1.6
14 350 750 133.4 495 355.6 298 412.8 7 635 1.6
16 400 825 146.1 552 406.4 311 469.9 7 704.8 1.6
18 450 915 162 597 457 327 533.4 7 774.7 1.6
20 500 985 177.8 641 508 356 584.2 7 831.8 1.6
24 600 1170 203.2 762 610 406 692.2 7 990.6 1.6

ANSI/ASME B16.5 Class 1500 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 3/4 110 7/8 M20 2.3
3/4 20 4 3/4 115 7/8 M20 2.7
1 25 4 7/8 125 1 M24 4.1
1 1/4 32 4 7/8 125 1 M24 4.6
1 1/2 40 4 1 140 1 1/8 M27 5.9
2 50 8 7/8 145 1 M24 11.4
2 1/2 65 8 1 160 1 1/8 M27 16.4
3 80 8 1 1/8 180 1 1/4 M30 21.8
4 100 8 1 1/4 195 1 3/8 M33 33
5 125 8 1 1/2 250 1 5/8 M39 59
6 150 12 1 3/8 260 1 1/2 M36 75
8 200 12 1 5/8 290 1 3/4 M42 125
10 250 12 1 7/8 335 2 M48 207
12 300 16 2 375 2 1/8 M52 314
14 350 16 2 1/4 405 2 3/8 M56 427
16 400 16 2 1/2 445 2 5/8 M64 568
18 450 16 2 3/4 495 2 7/8 M72 738
20 500 16 3 540 3 1/8 M76 932
24 600 16 3 1/2 615 3 5/8 M90 1511

ANSI/ASME B16.5 Class 2500 Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Diameter Flange Thickness Hub OD Weld Neck OD Welding Neck Length RF Diameter RF Height PCD Weld Face
A B C D E F G H I
1/2 15 135 30.2 43 21.3 73 34.9 7 88.9 1.6
3/4 20 140 31.8 51 26.7 79 42.9 7 95.2 1.6
1 25 160 35 57 33.4 89 50.8 7 108 1.6
1 1/4 32 185 38.1 73 42.2 95 63.5 7 130.2 1.6
1 1/2 40 205 44.5 79 48.3 111 73 7 146 1.6
2 50 235 50.9 95 60.3 127 92.1 7 171.4 1.6
2 1/2 65 265 57.2 114 73 143 104.8 7 196.8 1.6
3 80 305 66.7 133 88.9 168 127 7 228.6 1.6
4 100 355 76.2 165 114.3 190 157.2 7 273 1.6
5 125 420 92.1 203 141.3 229 185.7 7 323.8 1.6
6 150 485 108 235 168.3 273 215.9 7 368.3 1.6
8 200 550 127 305 219.1 318 269.9 7 438.2 1.6
10 250 675 165.1 375 273 419 323.8 7 539.8 1.6
12 300 760 184.2 441 323.8 464 381 7 619.1 1.6

ANSI/ASME B16.5 Class 2500 Weld Neck Flange Stud & Bolt Dimensions

Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
1/2 15 4 3/4 120 7/8 M20 3.3
3/4 20 4 3/4 125 7/8 M20 3.7
1 25 4 7/8 140 1 M24 5.5
1 1/4 32 4 1 150 1 1/8 M27 7.8
1 1/2 40 4 1 1/8 170 1 1/4 M30 11.5
2 50 8 1 180 1 1/8 M27 19
2 1/2 65 8 1 1/8 195 1 1/4 M30 24
3 80 8 1 1/4 220 1 3/8 M33 42.8
4 100 8 1 1/2 255 1 5/8 M39 66
5 125 8 1 3/4 300 1 7/8 M45 111
6 150 8 2 345 2 1/8 M52 173
8 200 12 2 380 2 1/8 M52 264
10 250 12 2 1/2 490 2 5/8 M64 490
12 300 12 2 3/4 540 2 7/8 M72 695

Available Grades of ANSI 16.5 Stainless Steel Weld Neck Flanges

Types of Weld Neck Flanges

  • Industry Standard Class 75 Weld Neck Flanges
  • Industry Standard Class 150 Weld Neck Flanges
  • Industry Standard Class 175 Weld Neck Flanges
  • Industry Standard Class 250 Weld Neck Flanges
  • Industry Standard Class 300 Weld Neck Flanges
  • Industry Standard Class 350 Weld Neck Flanges
  • Plate Weld Neck Flanges
  • Ring Type Joint Weld Neck Flanges
  • Drawing Weld Neck Flanges
  • Square Weld Neck Flanges
  • Nipo Weld Neck Flanges
  • Reducing Weld Neck Flanges
  • Forged Weld Neck Flanges
  • Stainless Steel Weld Neck Flanges
  • Industry Standard Class 125 Light-weight Weld Neck Flanges
  • Industry Standard Class 125/150 Weld Neck Flanges

Other Standards of ANSI / ASME / DIN Weld Neck Flanges

  • ANSI B16.5 Weld Neck Flanges
  • ANSI B16.5 Class 150 Weld Neck Flanges
  • ANSI B16.5 Class 300 Weld Neck Flanges
  • ANSI B16.5 Class 400 Weld Neck Flanges
  • ANSI B16.5 Class 600 Weld Neck Flanges
  • ANSI B16.5 Class 900 Weld Neck Flanges
  • ANSI B16.5 Class 1500 Weld Neck Flanges
  • ANSI B16.5 Class 2500 Weld Neck Flanges
  • ASME B16.47 Series A Weld Neck Flanges
  • ASME B16.47 Series B Weld Neck Flanges
  • ANSI B16.36 Orifice Weld Neck Flanges
  • DIN Weld Neck Flanges PN6-PN40

For Weld Neck Flanges price list as on :

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Weld Neck Flanges Applications

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

Weld Neck Flanges Manufacturer & Supplier

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Top Export Destinations - Weld Neck Flanges

Iran, Argentina, Colombia, Mexico, Africa, Houston, Brazil, Tunisia, Kazakhstan, Vietnam, London, Trinidad and Tobago, Kuwait, Canada, Iraq, Sudan, Israel, Azerbaijan, Turkey, Egypt, Australia, Dubai, Chine, United States, Italy, Saudi Arabia, UAE, Malaysia, Sri Lanka, Nigeria, South Africa, Peru, Indonesia, UK, Germany, Bahrain, New Zealand, Thailand (Bangkok), Jordan, Russia, Venezuela, Ethiopa, Ghana, Uganda, Cameroon, Algeria, Morocco, Mozambique, Angola, Qatar, Yemen, Oman, Lebanon, Cyprus, Johannesburg, Brazzaville, Cairo, Maputo, Lagos, Douala, Tripoli, Mogadishu, Khartoum, Port Harcourt, Antananarivo, Port Elizabeth, Kano, New York, Abu Dhabi, Dar es Salaam, Benin, Kampala, Luanda, Conakry, Rabat, Bulawayo, Cape Town, Alexandria, Fez, Ouagadougou, Mbuji-Mayi, Soweto, Singapore, Dakar, Omdurman, Hong Kong, Zaria, Lubumbashi, Kinshasa, Harare, Abidjan, Yaoundé, Addis Ababa, Giza, Algiers, Accra, Colombo, Kaduna, Maiduguri, Nairobi, Casablanca, Pretoria, Kolwezi, Subra al-Haymah, Durban, Freetown, Bamako, Ibadan, South America, Austalia, Austria, Bangladesh, Mozabique, Myanmar, Netherland, Phillipine, Spain, Jordon.

We Supply Weld Neck Flanges to following Domestic Cities

Bangalore, Hyderabad, Ahmedabad, Chennai, Suryapet, Jamalpur, Bhiwadi, Ballia, Ambala, Sadar, Udgir, Miryalaguda, Bansberia, Mumbai, India, Maharashtra, Delhi, Karnataka, Andhra Pradesh, Kerala, Tripura, Benin, Puducherry, Mizoram, Manipur, Tadepalligudem, Betul, Nagapattinam, Bundi, Baraut, Buxar, Muktsar, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Pimpri and Chinchwad, Patna, Vadodara, Ghaziabad, Ludhiana, Agra, Nashik, Faridabad, Meerut, Rajkot, Gujarat, Tamil Nadu, West Bengal, Gujarat, Bihar, Rajasthan, Uttar Pradesh, Punjab, Haryana, Madhya Pradesh, Jharkhand, Chhattisgarh, Assam, Chandigarh, Orissa, Kalyan, Dombivali, Vasai, Coimbatore, Jabalpur, Gwalior, Vijayawada, Jodhpur, Madurai, Bhadreswar, Kasganj, Kalyani, Nagaur, Port, Blair, Datia, Hinganghat, Banswara, Nagda, Raipur, Kota, Guwahati, Solapur, Hubli and Dharwad, Virar, Varanasi, Srinagar, Aurangabad, Dhanbad, Amritsar, Navi Mumbai, Allahabad, Ranchi, Haora, Ulhasnagar, Jhansi, Kolapur, Ajmer, Akola, Durgapur, Nanded, Gorakhpur, Belgaum, Mangalore, Ambattur, Tirunelveli, Saharanpur, Guntur, Bikaner, Amravati, Kurnool, Bhavnagar, Dehradun, Asansol, Waghala, Gulbarga, Jamnagar, Ujjain, Loni, Siliguri.
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