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This product is available in steel, stainless steel, carbon, nickel alloys, aluminum and exotic materials.
Description
Dimensions
- Diameter : 1/2″ to 24″
- Pressure class : 150# – 300# – 600# – 1500#
Variations
- Finishes : Raised face (RF) – Flat face (FF) – RTJ – …
- Variants :Long Welding Neck – Reducing Welding neck – Orifice Welding Neck
Reference standards
- ASTM A182 – ASME SA182 – Forged or Rolled Alloy and STainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service'
- ASTM A105 – ASME SA105 – Carbon Steel Forgings for Piping Applications'
- ASTM A181 – ASME SA181 – Carbon Steel Forgings, for General-Purpose Piping'
- ASTM B564 – ASME SB564 – 'Nickel Alloy Forgings'
- ASTM B381 – ASME SB381 – Titanium and Titanium Alloy Forgings'
- ASTM B363 – ASME SB363 – 'Seamless and Welded Unalloyed TItanium and Titanium Alloy Welding Fittings'
- ASME B16.5 – 'Pipe Flanges and Flanged Fittings'
- ASME B16.36 – 'Orifice Flanges'
- ASME B16.47 – 'Large Diameter Steel Flanges NPS26 Through NPS60'
- MSS SP-6 – Standard Finishes for Contact Faces of Pipe Flanges and Connecting End Flanges of Valves and Fittings'
The tables below show the most common dimensions, but are not exhaustive.
150 LBS
| Drilling | ||||||
|---|---|---|---|---|---|---|
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (F) |
Nbr | Holes | Dia. (C) |
| 1/2″ | 90 | 9.6 | 35.05 | 4 | 15.87 | 60.3 |
| 3/4″ | 100 | 11.2 | 42.93 | 4 | 15.87 | 69.9 |
| 1″ | 110 | 12.7 | 50.80 | 4 | 15.87 | 79.4 |
| 1 1/4″ | 115 | 14.3 | 63.50 | 4 | 15.87 | 88.9 |
| 1 1/2″ | 125 | 15.9 | 73.15 | 4 | 15.87 | 98.4 |
| 2″ | 150 | 17.5 | 91.94 | 4 | 19.50 | 120.7 |
| 2 1/2″ | 180 | 20.7 | 104.63 | 4 | 19.50 | 139.7 |
| 3″ | 190 | 22.3 | 127.00 | 4 | 19.50 | 152.4 |
| 3 1/2″ | 215 | 22.3 | 139.70 | 8 | 19.50 | 177.8 |
| 4″ | 230 | 22.3 | 157.23 | 8 | 19.50 | 190.5 |
| 5″ | 255 | 22.3 | 185.67 | 8 | 22.22 | 215.9 |
| 6″ | 280 | 23.9 | 215.90 | 8 | 22.22 | 241.3 |
| 8″ | 345 | 27.0 | 269.75 | 8 | 22.22 | 298.5 |
| 10″ | 405 | 28.6 | 325.85 | 12 | 25.4 | 362.0 |
| 12″ | 485 | 30.2 | 381.00 | 12 | 25.4 | 431.8 |
| 14″ | 535 | 33.4 | 412.75 | 12 | 28.57 | 476.3 |
| 16″ | 595 | 35.0 | 469.90 | 16 | 28.57 | 539.8 |
| 18″ | 635 | 38.1 | 533.40 | 16 | 31.75 | 577.9 |
| 20″ | 700 | 41.3 | 584.20 | 20 | 31.75 | 635.0 |
| 24″ | 815 | 46.1 | 692.15 | 20 | 34.92 | 749.3 |
Raised face of 1.6mm not included in dimensions E
Dimensions are in millimeters
Source: ASME B16.9 – 2007
300 LBS
| Drilling | ||||||
|---|---|---|---|---|---|---|
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (F) |
Nbr | Holes | Dia. (C) |
| 1/2″ | 95 | 12.7 | 35.05 | 4 | 15.87 | 66.7 |
| 3/4″ | 115 | 14.3 | 42.93 | 4 | 19.05 | 82.6 |
| 1″ | 125 | 15.9 | 50.80 | 4 | 19.05 | 88.9 |
| 1 1/4″ | 135 | 17.5 | 63.50 | 4 | 19.05 | 98.4 |
| 1 1/2″ | 155 | 19.1 | 73.15 | 4 | 22.22 | 114.3 |
| 2″ | 165 | 20.7 | 91.94 | 8 | 19.05 | 127.0 |
| 2 1/2″ | 190 | 23.9 | 104.64 | 8 | 22.22 | 149.2 |
| 3″ | 210 | 27.0 | 127.00 | 8 | 22.22 | 168.3 |
| 3 1/2″ | 230 | 28.6 | 139.70 | 8 | 22.22 | 184.2 |
| 4″ | 255 | 30.2 | 157.23 | 8 | 22.22 | 200.0 |
| 5″ | 280 | 33.4 | 185.67 | 8 | 22.22 | 235.0 |
| 6″ | 320 | 35.0 | 215.90 | 12 | 22.22 | 269.9 |
| 8″ | 380 | 39.7 | 269.75 | 12 | 25.40 | 330.2 |
| 10″ | 445 | 46.1 | 325.85 | 16 | 28.57 | 387.4 |
| 12″ | 520 | 49.3 | 381.00 | 16 | 31.75 | 450.8 |
| 14″ | 585 | 52.4 | 412.75 | 20 | 31.75 | 514.4 |
| 16″ | 650 | 55.6 | 469.90 | 20 | 34.92 | 571.5 |
| 18″ | 710 | 58.8 | 533.40 | 24 | 34.92 | 628.6 |
| 20″ | 775 | 62.0 | 584.20 | 24 | 34.92 | 685.8 |
| 24″ | 915 | 68.3 | 692.15 | 24 | 41.27 | 812.8 |
Raised face of 1.6mm not included in dimensions E
Dimensions are in millimeters
Source: ASME B16.9 – 2007
600 LBS
| Drilling | ||||||
|---|---|---|---|---|---|---|
| Nominal Bore | Dia. (D) |
Thick. (E) |
Dia. (F) |
Nbr | Holes | Dia. (C) |
| 1/2″ | 95 | 14.3 | 35.05 | 4 | 15.87 | 66.7 |
| 3/4″ | 115 | 15.9 | 42.93 | 4 | 19.05 | 82.6 |
| 1″ | 125 | 17.5 | 50.80 | 4 | 19.05 | 88.9 |
| 1 1/4″ | 135 | 20.7 | 63.50 | 4 | 19.05 | 98.4 |
| 1 1/2″ | 155 | 22.3 | 73.15 | 4 | 22.22 | 114.3 |
| 2″ | 165 | 25.4 | 91.94 | 8 | 19.05 | 127.0 |
| 2 1/2″ | 190 | 28.6 | 104.64 | 8 | 22.22 | 149.2 |
| 3″ | 210 | 31.8 | 127.00 | 8 | 22.22 | 168.3 |
| 3 1/2″ | 230 | 35.0 | 139.70 | 8 | 25.40 | 184.2 |
| 4″ | 275 | 38.1 | 157.23 | 8 | 25.40 | 215.9 |
| 5″ | 330 | 44.5 | 185.67 | 8 | 28.57 | 266.7 |
| 6″ | 355 | 47.7 | 215.90 | 12 | 28.57 | 292.1 |
| 8″ | 420 | 55.6 | 269.75 | 12 | 31.75 | 349.2 |
| 10″ | 510 | 63.5 | 23.85 | 16 | 34.92 | 431.8 |
| 12″ | 560 | 66.7 | 381.00 | 20 | 34.92 | 489.0 |
| 14″ | 605 | 69.9 | 412.75 | 20 | 38.10 | 527.0 |
| 16″ | 685 | 76.2 | 469.90 | 20 | 41.27 | 603.2 |
| 18″ | 745 | 82.6 | 533.40 | 20 | 44.45 | 654.0 |
| 20″ | 815 | 88.9 | 584.20 | 24 | 44.45 | 723.9 |
| 24″ | 940 | 101.6 | 692.15 | 24 | 50.80 | 838.2 |
Raised face of 1.6mm not included in dimensions E
Dimensions are in millimeters
Source: ASME B16.9 – 2007