Weld Neck Flange

Check ASME B16.5 Class 150 Stainless Steel Weld Neck Flange Dimensions And WNRF Flanges Weight Chart In Kg.

Stainless Steel Weld Neck Flange

Stainless Steel Weld Neck Flange

ASME B16.5 Weld Neck Flange

ASME B16.5 Weld Neck Flange

Copper Weld Neck Flange

Copper Weld Neck Flange


Where Do You Use A Welding Neck Flange?


Commonly used type is ASME B16.5 Weld Neck Flanges which has a ring type joint. Their applications are mostly in fluid flow systems with high pressure as the welded neck accounts for extra strength and is leak proof. Weld Neck Orifice Flange are made from different materials and compositions to supply a variety of flanges in the size range of ½ inches to 24 inches. Stainless steel weld neck flange produce these flanges in two main categories; with a raised face and without a raised face. Carbon steel weld neck flange dimensions vary depending on their grading and pressure class as well as with the consideration of weight. wnrf flange weight in turn depends on the size and material as well. weld neck pipe flanges for example is a series of flanges with specifications for circular flanges in the range of PN number 2 to 400. Welding neck flange EN 1092 have a different set of specification.

ANSI B16.5 WNRF Flange

ANSI B16.5 WNRF Flange

Weld Neck Pipe Flanges

Weld Neck Pipe Flanges

Weld Neck Orifice Flange

Weld Neck Orifice Flange


difference between a weld neck flange and a slip on flange

What Is The Difference Between A Weld Neck Flange And A Slip On Flange?

  • asme b16.5 weld neck flange has a ring type joint and it uses grooves and gaskets. Stainless Steel weld neck orifice Flanges are special in that they are used in fluid flow systems with orifice meters for measurement. There are specification tables that provide detailed information on the properties of a flange. For example the table e weld neck Flanges have specifications unique the table E.

  • Slip on Flanges are used in applications where the two pipes have to be held together with bolt and nut. The raised face helps bolting. They have to be welded on either side with fillet welding as well.


Weld Neck Flange Drawing


Weld Neck Flange Drawing

Class 150 Weld Neck Flange Dimensions

NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Hub Outer Diameter Weld Neck Outer Diameter Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
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

Class 300 Weld Neck Flange Dimensions


NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
1/2 15 95 12.7 38 21.3 51 Refer Note 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

Class 400 Weld Neck Flange Dimensions


NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
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

Class 600 Weld Neck Flange Dimensions


NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
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 7 838.2 1.6

Class 900 Weld Neck Flange Dimensions


NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
1/2 15 120 22.3 38 21.3 60 Refer Note 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

Class 1500 Weld Neck Flange Dimensions


Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
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

Class 2500 Weld Neck Flange Dimensions


Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Outside Daimeter Of Hub Outside Daimeter Of Weld Neck Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
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

ISO Approved Weld Neck Flanges Manufacturer In India And ASME B16.5 WNRF Flanges Material Specification.


Stainless Steel Weld Neck Flange Weight

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
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
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

Refer Carbon Steel Weld Neck Flanges Price List And EN 1092-1 Class 600 WNRF Flanges Wall Thickness Chart.


Standard Specification Of WNRF Flange

Material Specification Of : ASME B16.5 Weld Neck Flange
European Standard Flanges JIS B2220 Flanges (5k to 30k) and KS1503 flanges
Russian-Standard Flanges GOST 12820 / 12821-80, DIN, UNI, EN 1092-1
South African Standard Flanges SANSflanges And SABS flanges
Surface Finish smooth, concentric serrated, stock
Gaskets Types Full Face Gasket
Flat Ring Gasket
Metallic Ring Gakset
Advantages Of Pipe Flange Used to Connect Pipe System
Easy Repair Pipe System
Assembled Without Welding
Standard Cover : pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
Contact Faces RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female)
Size Chart Normal Pipe Size 1/2 to NPS 24"
Materials Stainless Steel (Grade 304/L, 316/L), Carbon Steel (ASTM A105 And ASTM A350), Alloy Steel (ASTM A182), Mild Steel, Duplex Steel, Pressure Vessel Steel, Titanium, Super Duplex Steel, Nickel Alloy, Monel, Inconel, Hastelloy, Copper Nickel, Cast Iron, Wrought Iron.
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
Flanges Standards EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN
Pressure Rating Class 150 To Class 2500
High Temperature Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature Above -29 Degree C (−20°F)
Common Types Of Flanges: Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF)
Special Types Of Flanges : Nipoflange, Elboflange, Latroflange, Swivel Flange, Expanding Flange, Reducing Flange, Weldoflange
Marking Standard Name of Manufacturer
Schedule
Type of Flange Facing
Nominal Pipe Size
Pressure Class
ASME B16 Designation
Bolt Type high strength bolts
medium strength bolts
low strength bolts

ASTM A105 Weld Neck Flange Price List
Type Of Flanges Size (Inches) Material Class Price In India (INR)
Weld Neck Flanges 2" X SCH STD ASTM A105 Class 150 430.45
WNRF 3" X SCH STD ASTM A105 Class 150 720.45
WNRF 4" X SCH STD ASTM A105 Class 150 820.45
WNRF 6" X SCH STD ASTM A105 Class 150 1450.45
WNRF 8" X SCH STD ASTM A105 Class 150 1780.35
WNRF 10" X SCH STD ASTM A105 Class 150 1980.00
WNRF 12" X SCH STD ASTM A105 Class 150 2230.00
A182 F304 Weld Neck Flange Price List
Type Of Flanges Size (MM) Aprox. Wt/Unit Material Class Price In India (INR)
Weld Neck Flanges 25mm 1.12 ASTM A182 F304 Class 150 969.70
WNRF 32mm 1.47 ASTM A182 F304 Class 150 1182.50
WNRF 40mm 1.90 ASTM A182 F304 Class 150 1345.45
WNRF 50mm 2.77 ASTM A182 F304 Class 300 1636.87
WNRF 80MM 5.44 ASTM A182 F304 Class 300 3000.00
WNRF 100mm 7.69 ASTM A182 F304 Class 300 4545.00

Please note this is an approx Price of Stainless Steel Weld Neck Flange in Mumbai, India. For final Weld Neck Flange Price List Please Call on 91 - 22 - 67437342 or drop an Email to info@rajtilakmetal.com


ASME B16.5 Stainless Steel Weld Neck Flange Manufacturer in India

flange wnrf ASME B16.5 indicates that the flanges in this range have a raised face and are from NPS1/2 to NPS24. The different shapes of the stainless steel weld neck flange assist in different functionalities of it.


Carbon Steel Weld Neck Flange Thickness Chart With Different Schedule

ANSI B16.5 Flanges Wall Thickness
NPS (Normal Pipe Sizes) Outside Daimeter (O.D.) Schedule 10 Schedule 20 Schedule 30 STD Wall Schedule 40 Schedule 60 EXT Hvy Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

Buy High Pressure Weld Neck Flange Certified And Tested Material And Class 1500 Flange WNRF ASME B16.5 Stub Bolts Chart

WNRF Flange Class 150 Bolt Dimensions

Class 150 Flanges Class 300 Flanges Class 600 Flanges
NPS # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1/2 4 0.50 2-1/4 4 0.50 2-1/2 3 4 0.50 3 3
3/4 4 0.50 2-1/2 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4

 

Class 900 Flanges Class 1500 Flanges Class 2500 Flanges
NPS # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length # Bolts And Studs Diameter of Bolts And Studs Stud Length
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 11-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2

ANSI B16.5 Weld Neck Flange Tolerances

ASME B16.5Tolerance
A Outside Diameter (O.D.)
  • When Outside Diameter (O.D.) is 24" or less: ±1/16" (1.6 mm)
  • When Outside Diameter (O.D.) is over 24": ±1/8" (3.2 mm)
D Inside Diameter
  • 10" and smaller: ±1/32" (0.8 millimeter)
  • 12" thru 18": +1/8" (3.2 millimeter)
  • 20" and larger: -1/16" (1.6 millimeter)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 millimeter)
  • 1/4" Raised Face (RF), Tongue & Groove (T/G), (male & female), (m/f): ±1/64" (0.4 mm)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 millimeter), -1/32" (0.8 millimeter)
  • 6" and larger: +5/32" (4.0 millimeter), -1/32 (0.8 millimeter)
P Drilling
  • Bolt circle: ±1/16" (1.6 millimeter)
  • Bolt hole spacing: ±1/32" (0.8 millimeter)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 millimeter) max.
  • 3" and larger ±1/16" (1.6 millimeter) max.
C Thickness
  • 18" and smaller: ±1/8" (3.2 millimeter), -0"
  • 20" and larger: ±3/16" (4.8 millimeter), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 millimeter)
  • 12" and larger: ±1/8" (3.2 millimeter)

Welding Neck Flange Pressure Ratings

ASME B16.5 Pressure Pressure
Temperature (°C)
Class
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500
-29 - 38 19.8 51.7 68.9 103.4 155 259 431
50 19.5 51.7 68.9 103.4 155 259 431
100 17.7 51.5 68.7 103.0 155 258 429
150 15.8 50.2 66.8 100.3 151 251 418
200 13.8 48.6 64.8 97.2 146 243 405
250 12.1 46.3 61.7 92.7 139 232 386
300 10.2 42.9 57.0 85.7 129 214 357
325 9.3 41.4 55.0 82.6 124 207 344
350 8.4 40.0 53.4 80.0 120 200 334
375 7.4 37.8 50.4 75.7 114 189 315
400 6.5 34.7 46.3 69.4 104 174 290
425 5.5 28.8 38.4 57.5 86.3 144 240
450 4.6 23.0 30.7 46.0 69.0 115 192
475 3.7 17.1 22.8 34.2 51.3 85.4 142
500 2.8 11.6 15.4 23.2 34.7 57.9 96.5
538 1.4 5.9 7.9 11.8 17.7 29.5 49.2

Class 150 To 2500 Weld Neck Pipe Flanges Size Chart

DN In inchesDimensionASME B16.5 Dimensional Sizes 1/2 inches to 2 1/2 inches
125 LBS
150 LBS
300 LBS400 LBS600 LBS900 LBS1500 LBS2500 LBS
inchesmillimeterinchesmillimeterinchesmillimeterinchesmillimeterinchesmillimeterinchesmillimeterinchesmillimeter
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
n44444444444-444
d5/815.95/815.95/815.95/815.97/822.27/822.27/822.2
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
n44444444444-444
d5/815.93/4193/4193/4197/822.27/822.27/822.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D2250.8250.8250.8250.8250.8250.8250.8
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
n44444444444444
d5/815.93/4193/4193/419125.4125.4125.4
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
n44444444444444
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
n44444444444444
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
n44888888888888
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
n44888888888888
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

DIN 2631 PN6 Weld Neck Flange Dimensions

DIN 2631 PN6 Weld Neck Flange Dimensions

Normal Pipe Size Dimensions Of Flange Neck Raised face (RF) Screws/Threaded Weight In Kilogram
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter ISO Series DIN Series
15 - 20 80 12 55 30 28 2 4 6 40 2 4 M 10 11 0,392
21,3 - 30
20 - 25 90 14 65 32 35 2,3 4 6 50 2 4 M 10 11 0,592
26,9 - 38
25 - 30 100 14 75 35 40 2,6 4 6 60 2 4 M 10 11 0,747
33,7 - 42
32 - 38 120 14 90 35 50 2,6 6 6 70 2 4 M 12 14 1,05
42,4 - 55
40 - 44,5 130 14 100 38 58 2,6 6 7 80 3 4 M 12 14 1,18
48,3 - 62
50 - 57 140 14 110 38 70 2,9 6 8 90 3 4 M 12 14 1,34
60,3 - 74
65 76,1 - 160 14 130 38 88 2,9 6 9 110 3 4 M 12 14 1,67
80 88,9 - 190 16 150 42 102 3,2 8 10 128 3 4 M 16 18 2,71
100 - 108 210 16 170 45 122 3,6 8 10 148 3 4 M 16 18 3,24
114,3 130
125 - 133 240 18 200 48 148 4 8 10 178 3 8 M 16 18 4,49
139,7 - 155
150 - 159 265 18 225 48 172 4,5 10 12 202 3 8 M 16 18 5,15
168,3 - 184
200 219,1 - 320 20 280 55 236 5,9 10 15 258 3 8 M 16 18 7,78
250 - 267 375 22 335 60 282 6,3 12 15 312 3 12 M 16 18 10,8
273 - 290
300 323,9 - 440 22 395 62 342 7,1 15 15 365 4 12 M 20 22 14
350 355,6 - 490 22 445 62 385 7,1 12 15 415 4 12 M 20 22 18,5
- 368 16,7
400 406,4 - 540 22 495 65 438 7,1 12 15 465 4 16 M 20 22 21,2
- 419 19
500 508 - 645 24 600 68 538 7,1 12 15 570 4 20 M 20 22 28,6
600 610 - 755 24 705 70 640 7,1 12 16 670 5 20 M 24 26 31,5
700 711 - 860 24 810 70 740 7,1 12 16 775 5 24 M 24 26 37,4
800 813 - 975 24 920 70 842 7,1 12 16 880 5 24 M 27 30 46,1
900 914 - 1075 26 1020 70 942 7,1 12 16 980 5 24 M 27 30 55,6
1000 1016 - 1175 26 1120 70 1045 7,1 16 16 1080 5 28 M 27 30 61,9

DIN 2632 PN10 Weld Neck Flange Dimensions

DIN 2632 PN10 Weld Neck Flange Dimensions

Normal Pipe Size Dimensions Of Flange Neck Raised face (RF) Screws/Threaded Weight In KG
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter ISO Series DIN Series
15 - 20 95 14 65 35 30 2 4 6 45 2 4 M 12 14 0,648
21,3 - 32
20 - 25 105 16 75 38 38 2,3 4 6 58 2 4 M 12 14 0,952
26,9 - 40
25 - 30 115 16 85 38 42 2,6 4 6 68 2 4 M 12 14 1,14
33,7 - 45
32 - 38 140 16 100 40 52 2,6 6 6 78 2 4 M 16 18 1,69
42,4 - 56
40 - 44,5 150 16 110 42 60 2,6 6 7 88 3 4 M 16 18 1,86
48,3 - 64
50 - 57 165 18 125 45 72 2,9 6 8 102 3 4 M 16 18 2,53
60,3 - 75
65 76,1 - 185 18 145 45 90 2,9 6 10 122 3 4 M 16 18 3,06
80 88,9 - 200 20 160 50 105 3,2 8 10 138 3 8 M 16 18 3,7
100 - 108 220 20 180 52 125 3,6 8 12 158 3 8 M 16 18 4,62
114,3 - 131
125 - 133 250 22 210 55 150 4 8 12 188 3 8 M 16 18 6,3
139,7 - 156
150 - 159 285 22 240 55 175 4,5 10 12 212 3 8 M 20 22 7,75
168,3 - 184
200 219,1 - 340 24 295 62 235 5,9 10 16 268 3 8 M 20 22 11,3
250 - 267 395 26 350 68 285 6,3 12 16 320 3 12 M 20 22 14,7
273 - 292
300 323,9 - 445 26 400 68 344 7,1 12 16 370 4 12 M 20 22 17,4
350 355,6 - 505 26 460 68 385 7,1 12 16 430 4 16 M 20 22 23,6
- 368 21,6
400 406,4 - 565 26 515 72 440 7,1 12 16 482 4 16 M 24 26 28,6
- 419 26,2
(450) 457 - 615 28 565 72 488 7,1 12 16 532 4 20 M 24 26 31,5
500 508 - 670 28 620 75 542 7,1 12 16 585 4 20 M 24 26 38,1
600 610 - 780 28 725 80 642 7,1 12 18 685 5 20 M 27 30 44,6
700 711 - 895 30 840 80 745 8 12 18 800 5 24 M 27 30 62,4
800 813 - 1015 32 950 90 850 8 12 18 905 5 24 M 30 33 84,1
900 914 - 1115 34 1050 95 950 10 12 20 1005 5 28 M 30 33 98,5
1000 1016 - 1230 34 1160 95 1052 10 16 20 1110 5 28 M 33 36 115

DIN 2633 PN16 Weld Neck Flange Dimensions

DIN 2633 PN16 Weld Neck Flange Dimensions

NPS Dimensions Of Flange Neck Raised face (RF) Screws/Threaded Weight In KG
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter ISO Series Diameter DIN Series Diameter
15 - 20 95 14 65 35 30 2 4 6 45 2 4 M 12 14 0,648
21,3 - 32
20 - 25 105 16 75 38 38 2,3 4 6 58 2 4 M 12 14 0,952
26,9 - 40
25 - 30 115 16 85 38 42 2,6 4 6 68 2 4 M 12 14 1,14
33,7 - 45
32 - 38 140 16 100 40 52 2,6 6 6 78 2 4 M 16 18 1,69
42,4 - 56
40 - 44,5 150 16 110 42 60 2,6 6 7 88 3 4 M 16 18 1,86
48,3 - 64
50 - 57 165 18 125 45 72 2,9 6 8 102 3 4 M 16 18 2,53
60,3 - 75
65 76,1 - 185 18 145 45 90 2,9 6 10 122 3 4 M 16 18 3,06
80 88,9 - 200 20 160 50 105 3,2 8 10 138 3 8 M 16 18 3,7
100 - 108 220 20 180 52 125 3,6 8 12 158 3 8 M 16 18 4,62
114,3 - 131
125 - 133 250 22 210 55 150 4 8 12 188 3 8 M 16 18 6,3
139,7 - 156
150 - 159 285 22 240 55 175 4,5 10 12 212 3 8 M 20 22 7,75
168,3 - 184
(175) 193,7 - 315 24 270 60 210 5,4 10 12 242 3 8 M 20 22 9,85
200 219,1 - 340 24 295 62 235 5,9 10 16 268 3 12 M 20 22 11
250 - 267 405 26 355 70 285 6,3 12 16 320 3 12 M 24 26 15,6
273 - 292
300 323,9 - 460 28 410 78 344 7,1 12 16 378 4 12 M 24 26 22
350 355,6 - 520 30 470 82 390 8 12 16 438 4 16 M 24 26 31,2
- 368 28,8
400 406,4 - 580 32 525 85 445 8 12 16 490 4 16 M 27 30 39,3
- 419 36,3
(450) 457 - 640 34 585 85 490 8 12 16 550 4 20 M 27 30 44,3
500 508 - 715 34 650 90 548 8 12 16 610 4 20 M 30 33 61
600 610 - 840 36 770 95 652 8,8 12 18 725 5 20 M 33 36 75,4
700 711 - 910 36 840 100 755 8,8 12 18 795 5 24 M 33 36 77
800 813 - 1025 38 950 105 855 10 12 20 900 5 24 M 36 39 101
900 914 - 1125 40 1050 110 955 10 12 20 1000 5 28 M 36 39 122
1000 1016 - 1255 42 1170 120 1058 10 16 22 1115 5 28 M 39 42 162

DIN 2634 PN25 Weld Neck Flange Dimensions

DIN 2634 PN25 Weld Neck Flange Dimensions

NPS Dimensions Of Flange Neck Raised face (RF) Screws/Threaded Weight In Kg
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter Diameter Of ISO Series Diameter Of DIN Series
15 - 20 95 16 65 38 30 2 4 6 45 2 4 M 12 14 0,746
21,3 - 32
20 - 25 105 18 75 40 38 2,3 4 6 58 2 4 M 12 14 1,06
26,9 - 40
25 - 30 115 18 85 40 42 2,6 4 6 68 2 4 M 12 14 1,29
33,7 - 45
32 - 38 140 18 100 42 52 2,6 6 6 78 2 4 M 16 18 1,88
42,4 - 56
40 - 44,5 150 18 110 45 60 2,6 6 7 88 3 4 M 16 18 2,33
48,3 - 64
50 - 57 165 20 125 48 72 2,9 6 8 102 3 4 M 16 18 2,82
60,3 - 75
65 76,1 - 185 22 145 52 90 2,9 6 10 122 3 8 M 16 18 3,74
80 88,9 - 200 24 160 58 105 3,2 8 12 138 3 8 M 16 18 4,75
100 - 108 235 24 190 65 128 3,6 8 12 162 3 8 M 20 22 6,52
114,3 - 134
125 - 133 270 26 220 68 155 4 8 12 188 3 8 M 24 26 9,07
139,7 - 162
150 - 159 300 28 250 75 182 4,5 10 12 218 3 8 M 24 26 11,8
168,3 - 192
(175) 193,7 - 350 28 280 75 218 5,6 10 15 248 3 12 M 24 26 13,4
200 219,1 - 360 30 310 80 244 6,3 10 16 278 3 12 M 24 26 17
250 - 267 425 32 370 88 292 7,1 12 18 335 3 12 M 27 30 24,4
273 - 298
300 323,9 - 485 34 430 92 352 8 12 18 395 4 16 M 27 30 31,2
350 355,6 - 555 38 490 100 398 8 12 20 450 4 16 M 30 33 47,2
- 368 44,2
400 406,4 - 620 40 550 110 452 8,8 12 20 505 4 16 M 33 36 61,7
- 419 57,9
(450) 457 - 670 42 600 110 500 8,8 12 20 550 4 20 M 33 36 71,9
500 508 - 730 44 660 125 558 10 12 20 615 4 20 M 33 36 89,6
600 610 - 845 46 770 125 660 11 12 20 720 5 20 M 36 39 104
700 711 - 960 46 875 125 760 13 20 24 820 5 24 M 39 42 136
800 813 - 1085 50 990 135 865 14 22 24 930 5 24 M 45 48 186
900 914 - 1185 54 1090 145 968 16 24 28 1030 5 28 M 45 48 236
1000 1016 - 1320 58 1210 155 1070 18 24 28 1140 5 28 M 52 56 307

DIN 2635 PN40 Weld Neck Flange Dimension

DIN 2635 PN40 Weld Neck Flange Dimension

Normal Pipe Size Dimension Of Flange Neck Raised face Screws/Threaded Weight In KG
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter ISO Series DIN Series
15 - 20 95 16 65 38 30 2 4 6 45 2 4 M 12 14 0,746
21,3 - 32
20 - 25 105 18 75 40 38 2,3 4 6 58 2 4 M 12 14 1,06
26,9 - 40
25 - 30 115 18 85 40 42 2,6 4 6 68 2 4 M 12 14 1,29
33,7 - 45
32 - 38 140 18 100 42 52 2,6 6 6 78 2 4 M 16 18 1,88
42,4 - 56
40 - 44,5 150 18 110 45 60 2,6 6 7 88 3 4 M 16 18 2,33
48,3 - 64
50 - 57 165 20 125 48 72 2,9 6 8 102 3 4 M 16 18 2,82
60,3 - 75
65 76,1 - 185 22 145 52 90 2,9 6 10 122 3 8 M 16 18 3,74
80 88,9 - 200 24 160 58 105 3,2 8 12 138 3 8 M 16 18 4,75
100 - 108 235 24 190 65 128 3,6 8 12 162 3 8 M 20 22 6,52
114,3 - 134
125 - 133 270 26 220 68 155 4 8 12 188 3 8 M 24 26 9,07
139,7 - 162
150 - 159 300 28 250 75 182 4,5 10 12 218 3 8 M 24 26 11,8
168,3 - 192
(175) 193,7 - 350 32 295 82 218 5,6 10 15 260 3 12 M 27 30 18,2
200 219,1 - 375 34 320 88 244 6,3 10 16 285 3 12 M 27 30 21,5
250 - 267 450 38 385 105 298 7,1 12 18 345 3 12 M 30 33 34,9
273 - 306
300 323,9 - 515 42 450 115 362 8 12 18 410 4 16 M 30 33 49,7
350 355,6 - 580 46 510 125 408 8,8 12 20 465 4 16 M 33 36 68,1
- 368
400 406,4 - 660 50 585 135 462 11 12 20 535 4 16 M 36 39 96,5
- 419
(450) 457 - 685 50 610 135 500 12,5 12 20 560 4 20 M 36 39 99,7
500 508 - 755 52 670 140 562 14,2 12 20 615 4 20 M 39 42 117

Class 300 Welding Neck Flange Available In A Wide Range Of Grade/ Material/ Shape/ Schedule, Temperature Ratings Of ASTM A105 Weld Neck Flange.

Common Types Of ASME B16.5 Weld Neck Flange


12 Inch, 150 LB, SCH 40, Stainless Steel Weld Neck Flange

12 Inch, 150 LB, SCH 40, Stainless Steel Weld Neck Flanges

28 Inch, Class 600 LB, RF, Carbon Steel Weld Neck Flange

28 Inch, Class 600 LB, RF, Carbon Steel Weld Neck Flanges

150LB, 14 Inch, SCH 80, Aluminum Weld Neck Flange

150LB, 14 Inch, SCH 80, Aluminum Weld Neck Flanges

3 Inch PN16, 150 LB DN80, Titanium Weld Neck Flange

3 Inch PN16, 150 LB DN80, Titanium Weld Neck Flanges


EN1092-1 Type 11 Inconel 600 Weld Neck Flange

EN1092-1 Type 11 Inconel 600 Weld Neck Flanges

32 Inch, 150 LB, RF, ASME A105 Weld Neck Flange

32 Inch, 150 LB, RF, ASME A105 Weld Neck Flanges

ASME B16.47 Ser.B Raised Face Weld Neck Flange

ASME B16.47 Ser.B Raised Face Weld Neck Flanges

A105, 10 Inch, Pressure 300LB, WNRF Reducing Flange

A105, 10 Inch, Pressure 300LB, WNRF Reducing Flanges


150mm, ASTM A536, RF Ends, Welding Neck Flange 600 Lbs

150mm, ASTM A536, RF Ends, Welding Neck Flange 600 Lbs

EN 1092-1, DN 100, 8.0 mm, Flat Face Weld Neck Flange

EN 1092-1, DN 100, 8.0 mm, Flat Face Weld Neck Flanges

SCH 120, 8 inch, Class 300#, Weld Neck Pipe Flanges

SCH 120, 8 inch, Class 300#, Weld Neck Pipe Flanges

8 Inch, Class 600 LB, SCH 80, Weld Neck Orifice Flange

8 Inch, Class 600 LB, SCH 80, Weld Neck Orifice Flanges


Carbon Steel weld neck flange is the commonly used one whereas specifications like ASTM A182 SS weld neck reducing flange or the weld neck flat face flange have to be specified upon order. DIN86029 weld neck welded flange is a PN10 pressure class flange. weld neck ring type joint flange could also be used as replacement to other materials. Inconel weld neck raised flange can either be blunt ended or with a thread as in the weld neck threaded flange. The threads are used to be threaded onto the threads on the pipes. >Weld neck flange pn16 is of a high pressure class. Wnrf flange class 150 is of a low pressure class with a raised face. Wnrf reducing flange is a raised face weld neck flange.



About Company

We Are EIL And IBR Approved Manufacturer, Exporter, Stockholder, Traders, Dealer, Importer, Wholesaler, Distributor, Supplier of Industrial Pipe Fittings & Flanges, Forgings And Fasteners In Mumbai, India.


Our Official Address

153 / 154, “A” Wing, Siddheshdeep Tower,
Shop No. A-28, Ground Floor, P.B. Marg, Near Navjivan Society,
Mumbai– 400 008 (India).


Telephone & Fax No.

Tel Number : +91 - 22 - 6743 7342,
+91 - 22 - 6659 5135
Fax Number : +91 - 22 - 66595135

Contact our sales representatives in the following countries:
Poland | Malaysia | Singapore | UAE | USA | UK | Philippines | Iran | Italy