API Flanges
India’s Leading 3000psi 6A/6B Blind Flange, 5000psi 6B WN Flange, 2000psi 6B Weld Neck Flange, Buy Api 6a Flanges, 6BX Weld Neck Flange, 15000psi 6BX WNFlange, 20000psi 6BX WN/BL Flange Manufacturer & Supplier in India.
Kanak Steel & Engg Co. is a known exporting and trading unit of API Flanges, which gives the maximum advanced resistance to chloride.
Monel Alloy API Flanges are being utilized in distinct industries wherein excessive situations can also additionally exist like marine, chemical processing, oil & fuel line, electricity generation, wastewater, meals processing and different varieties of appliances. Comprehensively utilized in various industries, they’re identified for his or her excessive strength, corrosion resistance, sharpening and advanced durability. Finishes on such flanges can range and contain a stony drawn, clean grew to become, centerless ground, tough grew to become, polished and grew to become ground, and HRAP (Hot Rolled Annealed and Pickled). They are utilized in diverse programs consisting of for Cleaning and decontamination biking process; and Reverse osmosis seawater desalinization.
Nickel Alloy API Flanges also are utilized in Fertilizers, insecticides and herbicides production; Anti-inflammatory pills process; Toxic air releases treatment; etc. The frame of such flanges is the outer casing of maximum or all the valve that consists of the inner components or trim. The bonnet of such flanges is the part of the encasing via which the stem passes and that bureaucracy a manual and seal for the stem. They are being operated automatic, pushed through adjustments in strain, temperature, or flow. In an open flange, fluid flows in a course from better strain to decrease strain.
Hastelloy Alloy API Flanges also are utilized in each day lives, such as plumbing valves, consisting of faucets for faucet water, fueloline manage valves on cookers, small valves suited for washing machines and dishwashers, protection gadgets suited for warm water systems, and poppet valves in automobile engines. They are determined in truly each commercial process, such as water and sewage processing, mining, electricity generation, processing of oil, fuelling and petroleum, meals production, chemical and plastic production and plenty of different fields. It has many makes use of, such as controlling water for irrigation, commercial makes use of for controlling processes, residential makes use of consisting of on / off and strain manage to dish and garments washers and faucets within the home.
Largest Manufacturer & Supplier of API 6A/6B RTJ Flange, Ring Gaskets for API 6a Flanges, API 6A/6B Blind Flanges Pressure, API 6A/6B WN & BL Flanges dimensions, API 6A/6B Flanges in Mumbai, India.
Specification Of API Flanges
| Specifications | API Flanges |
|---|---|
| API Flange size range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Main Types | Forged / Threaded / Screwed / Plate |
| Flange supporting material | Gasket, Ring Joint, Flange Bolts |
| Production technique | Forged, Heat treated and machined |
| Special design |
As per your drawing AS, ANSI, BS, DIN and JIS JIS Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange |
| Specialized manufacturer of | DIN 2566 en 1092 1 Pn16 Flange DIN 2566 pn16 Rtj Flange API Sorf Flange API Table Flanges DIN 2566 pn10 API Large Diameter Flange API Threaded Flanges API Blind Flanges API Plate Flanges API Weld Neck Flanges API Loose Flanges API Orifice Flanges API Slip-On Flanges API Lap Joint Flanges API Socketweld Flanges API AS 4087 Water Flanges |
| Test | Hydrostatic testing machine, Direct-reading Spectrograph,UI trasonic flaw detector, X-ray detector, Magnetic particle detector |
| Equipment | Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc |
| Origin | West Europe /Indian / USA / Japan / Korean |
| Key markets and industries for API Flange | Nuclear power (mostly seamless). Heavy oil refineries. Bitumen upgraders. Petrochemicals and acids. |
| Export to | Indonesia, Ireland, Ukraine, Singapore,Saudi Arabia,Canada, Peru, Dubai, Brazil, Iran, Korea, USA, India, Egypt, Thailand, Spain, Oman etc |
| API Flanges Application | To Connect Pipe & Tubes in Power, Petroleum,Construction, Chemical, Gas, Shipbuilding,Metallurgy, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
API Flanges Dimensions
| Flange Size | Working Pressure (PSI) | Outside Diameter | Number of Bolt Holes | Diameter of Bolt Holes | Length of Bolts | API Ring Gasket |
|---|---|---|---|---|---|---|
| 1-13/16″ | 10,000 | 7-3/8″ | 8 | 3/4″ | 5-1/4″ | BX-151 |
| 1-13/16″ | 15,000 | 8-3/16″ | 8 | 7/8″ | 6″ | BX-151 |
| 1-13/16″ | 20,000 | 10-1/8″ | 8 | 1″ | 7-3/4″ | BX-151 |
| 2-1/16″ | 2,000 | 6-1/2″ | 8 | 5/8″ | 5/8″ | R-23 |
| 2-1/16″ | 3,000/5,000 | 8-1/2″ | 8 | 7/8″ | 7/8″ | R-24 |
| 2-1/16″ | 10,000 | 7-7/8″ | 8 | 3/4″ | 3/4″ | BX-152 |
| 2-1/16″ | 15,000 | 8-3/4″ | 8 | 7/8″ | 7/8″ | BX-152 |
| 2-1/16″ | 20,000 | 11-5/16″ | 8 | 1-1/8″ | 1-1/8″ | BX-152 |
| 2-9/16″ | 2,000 | 7-1/2″ | 8 | 3/4″ | 5-1/4″ | R-26 |
| 2-9/16″ | 3,000/5,000 | 9-5/8″ | 8 | 1″ | 7″ | R-27 |
| 2-9/16″ | 10,000 | 9-1/8″ | 8 | 7/8″ | 6-1/4″ | BX-153 |
| 2-9/16″ | 15,000 | 10″ | 8 | 1″ | 7″ | BX-153 |
| 2-9/16″ | 20,000 | 12-13/16″ | 8 | 1-1/4″ | 9-1/2″ | BX-153 |
| 3-1/8″ | 2,000 | 8-1/4″ | 8 | 3/4″ | 5-1/2″ | R-31 |
| 3-1/8″ | 3,000 | 9-1/2″ | 8 | 7/8″ | 6-1/4″ | R-31 |
| 3-1/8″ | 5,000 | 10-1/2″ | 8 | 1-1/8″ | 7-3/4″ | R-35 |
| 3-1/16″ | 10,000 | 10-5/8″ | 8 | 1″ | 7-1/4″ | BX-154 |
| 3-1/16″ | 15,000 | 11-5/16″ | 8 | 1-1/8″ | 8″ | BX-154 |
| 3-1/16″ | 20,000 | 14-1/16″ | 8 | 1-3/8″ | 10-3/4″ | BX-154 |
| 4-1/16″ | 2,000 | 10-3/4″ | 8 | 7/8″ | 6-1/4″ | R-37 |
| 4-1/16″ | 3,000 | 11-1/2″ | 8 | 1-1/8″ | 7-1/2″ | R-37 |
| 4-1/16″ | 5,000 | 12-1/4″ | 8 | 1-1/8″ | 8-3/8″ | BX-155 |
| 4-1/16″ | 20,000 | 17-9/16″ | 8 | 1-3/4″ | 12-3/4″ | BX-155 |
| 5-1/8″ | 5,000 | 14-3/4″ | 8 | 1-1/2″ | 10-3/4″ | R-44 |
| 7-1/16″ | 2,000 | 14″ | 12 | 1″ | 7-1/2″ | R-45 |
| 7-1/16″ | 3,000 | 15″ | 12 | 1-1/8″ | 8-1/2″ | R-45 |
| 7-1/16″ | 5,000 | 15-1/2″ | 12 | 1-3/8″ | 11-1/4″ | R-46 |
| 7-1/16″ | 10,000 | 18-7/8″ | 12 | 1-1/2″ | 11-3/4″ | BX-156 |
| 7-1/16″ | 15,000 | 19-7/8″ | 16 | 1-1/2″ | 13″ | BX-156 |
| 7-1/16″ | 20,000 | 24-13/16″ | 16 | 2″ | 17-3/4″ | BX-156 |
| 9″ | 2,000 | 16-1/2″ | 12 | 1-1/8″ | 8-1/2″ | R-49 |
| 9″ | 3,000 | 18-1/2″ | 12 | 1-3/8″ | 9-1/2″ | R-49 |
| 9″ | 5,000″ | 19″ | 12 | 1-5/8″ | 12-1/2″ | R-50 |
| 9″ | 10,000 | 21-3/4″ | 16 | 1-1/2″ | 13-1/4″ | BX-157 |
| 9″ | 15,000 | 25-1/2″ | 16 | 1-7/8″ | 16″ | BX-157 |
| 11″ | 2,000 | 20″ | 16 | 1-1/4″ | 9-1/4″ | R-53 |
| 11″ | 3,000 | 21-1/2″ | 16 | 1-3/8″ | 10″ | R-53 |
| 11″ | 5,000 | 23″ | 12 | 1-7/8″ | 14-1/4″ | R-54 |
| 11″ | 10,000 | 25-3/4″ | 16 | 1-3/4″ | 15-3/8″ | BX-158 |
| 11″ | 15,000 | 32″ | 20 | 2″ | 19-1/2″ | BX-158 |
| 13-5/8″ | 2,000 | 22″ | 20 | 1-1/4″ | 9-1/2″ | R-57 |
| 13-5/8″ | 3,000 | 24″ | 20 | 1-3/8″ | 10-3/4″ | R-57 |
| 13-5/8″ | 5,000 | 26-1/2″ | 16 | 1-5/8″ | 12-3/4″ | BX-160 |
| 13-5/8″ | 10,000 | 30-1/4″ | 20 | 1-7/8″ | 17-3/4″ | BX-159 |
| 13-5/8″ | 15,000 | 34-7/8″ | 20 | 2-1/4″ | 21″ | BX-159 |
| 16-3/4″ | 2,000 | 27″ | 20 | 1-1/2″ | 10-3/4″ | R-65 |
| 16-3/4″ | 3,000 | 27-3/4″ | 20 | 1-5/8″ | 12-1/4″ | R-66 |
| 16-3/4″ | 5,000 | 30-3/8″ | 16 | 1-78″ | 14-3/4″ | BX-162 |
| 16-3/4″ | 10,000 | 34-5/16″ | 24 | 1-7/8″ | 17-3/4″ | BX-162 |
| 18-3/4″ | 5,000 | 35-5/8″ | 20 | 2″ | 18″ | BX-163 |
| 16-3/4″ | 10,000 | 40-15/16″ | 24 | 2-1/4″ | 23″ | BX-164 |
| 20-3/4″ | 3,000 | 33-3/4″ | 20 | 2″ | 15-1/4″ | R-74 |
| 21-1/4″ | 2,000 | 32″ | 24 | 1-5/8″ | 12-1/2″ | R-73 |
| 21-1/4″ | 5,000 | 39″ | 24 | 2″ | 19″ | BX-165 |
| 21-1/4″ | 10,000 | 45″ | 24 | 2-1/2″ | 24-3/4″ | BX-166 |
| 26-3/4″ | 2,000 | 41″ | 20 | 1-3/4″ | 14-1/4″ | BX-167 |
| 21-1/4″ | 3,000 | 43-3/8″ | 24 | 2″ | 17-1/2″ | BX-168 |
Dimension of 2000 PSI Type API Blind and Welding Neck Flanges
| Size | B | OD | C | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | R/RX |
| 2 1/16″ | 53.2 | 165 | 3 | 108 | 82.55 | 7.9 | 33.4 | 25.4 | 84 | 127 | 8 | 20 | 81 | 60.3 | 53.3 | 23 |
| 2 9/16″ | 65.9 | 190 | 3 | 127 | 101.6 | 7.9 | 36.6 | 28.6 | 100 | 149.2 | 8 | 23 | 88 | 73 | 63.5 | 26 |
| 3 1/8″ | 81.8 | 210 | 3 | 146 | 123.83 | 7.9 | 39.7 | 31.8 | 117 | 168.3 | 8 | 23 | 91 | 88.9 | 78.7 | 31 |
| 4 1/16″ | 108.7 | 275 | 3 | 175 | 149.23 | 7.9 | 46.1 | 38.1 | 152 | 215.9 | 8 | 26 | 110 | 114.3 | 103.1 | 37 |
| 5 1/8″ | 131 | 330 | 3 | 210 | 180.98 | 7.9 | 52.4 | 44.5 | 189 | 266.7 | 8 | 29 | 122 | 141.3 | 122.9 | 41 |
| 7 1/16″ | 181.8 | 355 | 6 | 241 | 211.15 | 7.9 | 55.6 | 47.6 | 222 | 292.1 | 12 | 29 | 126 | 168.3 | 147.1 | 45 |
| 9″ | 229.4 | 420 | 6 | 302 | 269.88 | 7.9 | 63.5 | 55.6 | 273 | 349.3 | 12 | 32 | 141 | 219.1 | 199.1 | 49 |
| 11″ | 280.2 | 510 | 6 | 356 | 323.85 | 7.9 | 71.5 | 63.5 | 343 | 431.8 | 16 | 35 | 160 | 273 | 248.4 | 53 |
| 13 5/8″ | 346.9 | 560 | 6 | 413 | 381 | 7.9 | 74.7 | 66.7 | 400 | 489 | 20 | 35 | – | – | – | 57 |
| 16 3/4″ | 426.2 | 685 | 6 | 508 | 469.9 | 7.9 | 84.2 | 76.2 | 495 | 603.2 | 20 | 42 | – | – | – | 65 |
| 21 1/4″ | 540.5 | 815 | 6 | 635 | 584.2 | 9.7 | 98.5 | 88.9 | 610 | 723.9 | 24 | 45 | – | – | – | 73 |
Dimension of 3000 PSI Type API Blind and Welding Neck Flanges
| Size | B | OD | C | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | R/RX |
| 2 1/16″ | 53.2 | 215 | 3 | 124 | 95.25 | 7.9 | 46.1 | 38.1 | 104.8 | 165.1 | 8 | 26 | 109.6 | 60.3 | 50 | 24 |
| 2 9/16″ | 65.9 | 245 | 3 | 137 | 107.95 | 7.9 | 49.3 | 41.3 | 123.8 | 190.5 | 8 | 29 | 112.7 | 73 | 59.7 | 27 |
| 3 1/8″ | 81.8 | 240 | 3 | 156 | 123.83 | 7.9 | 46.1 | 38.1 | 127 | 190.5 | 8 | 26 | 109.5 | 88.9 | 74.4 | 31 |
| 4 1/16″ | 108.7 | 290 | 3 | 181 | 149.23 | 7.9 | 52.4 | 44.4 | 158.8 | 235 | 8 | 32 | 122.2 | 114.3 | 98 | 37 |
| 5 1/8″ | 131 | 350 | 3 | 216 | 180.98 | 7.9 | 58.8 | 50.8 | 190.5 | 279.4 | 8 | 35 | 134.9 | 141.3 | 122.9 | 41 |
| 7 1/16″ | 181.8 | 380 | 6 | 241 | 211.15 | 7.9 | 63.5 | 55.6 | 235 | 317.5 | 12 | 32 | 147.6 | 168.3 | 147.1 | 45 |
| 9″ | 229.4 | 470 | 6 | 308 | 269.88 | 7.9 | 71.5 | 63.5 | 298.5 | 393.7 | 12 | 39 | 169.9 | 219.1 | 189.7 | 49 |
| 11″ | 280.2 | 545 | 6 | 362 | 323.85 | 7.9 | 77.8 | 69.9 | 368.3 | 469.9 | 16 | 39 | 192.1 | 273 | 237.2 | 53 |
| 13 5/8″ | 346.9 | 610 | 6 | 419 | 381 | 7.9 | 87.4 | 79.4 | 419.1 | 533.4 | 20 | 39 | – | – | – | 57 |
| 16 3/4″ | 426.2 | 705 | 6 | 524 | 469.9 | 11.2 | 100.1 | 88.9 | 508 | 616 | 20 | 45 | – | – | – | 66 |
| 20 3/4″ | 527.8 | 855 | 6 | 648 | 584.2 | 12.7 | 120.7 | 108 | 622.3 | 749.3 | 20 | 54 | – | – | – | 74 |
Dimension of 5000 PSI Type API Blind and Welding Neck Flanges
| Size | B | OD | C | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | R/RX |
| 2 1/16″ | 53.2 | 215 | 3 | 124 | 95.25 | 7.9 | 46.1 | 38.1 | 104.8 | 165.1 | 8 | 26 | 109.5 | 60.3 | 43.7 | 24 |
| 2 9/16″ | 65.9 | 245 | 3 | 137 | 107.95 | 7.9 | 49.3 | 41.3 | 123.8 | 190.5 | 8 | 29 | 112.7 | 73 | 54.9 | 27 |
| 3 1/8″ | 81.8 | 265 | 3 | 168 | 136.53 | 7.9 | 55.6 | 47.7 | 133.3 | 203.2 | 8 | 32 | 125.4 | 88.9 | 67.5 | 35 |
| 4 1/16″ | 108.7 | 310 | 3 | 194 | 161.93 | 7.9 | 62 | 54 | 161.9 | 241.3 | 8 | 35 | 131.8 | 114.3 | 88.1 | 39 |
| 5 1/8″ | 131 | 375 | 3 | 229 | 193.68 | 7.9 | 81 | 73.1 | 196.8 | 292.1 | 8 | 42 | 163.5 | 141.3 | 110.3 | 44 |
| 7 1/16″ | 181.8 | 395 | 6 | 248 | 211.15 | 9.7 | 92.1 | 82.6 | 228.6 | 317.5 | 12 | 39 | 181 | 168.3 | 132.6 | 46 |
| 9″ | 229.4 | 485 | 6 | 318 | 269.88 | 11.2 | 103.2 | 92.1 | 292.1 | 393.7 | 12 | 45 | 223.8 | 219.1 | 173.8 | 50 |
| 11″ | 280.2 | 585 | 6 | 371 | 323.85 | 11.2 | 119.1 | 108 | 368.3 | 482.6 | 12 | 51 | 265.1 | 273.1 | 216.7 | 54 |
Dimension of 10000 PSI Type API Blind and Welding Neck Flanges
| Size | B | OD | C | E1 | Q | G | K | T | J1 | J2 | J3 | J4 | R | BC | N | H | BX |
| 1 13/16″ | 46.8 | 185 | 3 | – | 5.56 | 77.77 | 105 | 42.1 | 88.9 | 65.1 | 48.5 | – | 10 | 146.1 | 8 | 23 | 151 |
| 2 1/16″ | 53.2 | 200 | 3 | – | 5.95 | 86.23 | 111 | 44.1 | 100 | 74.7 | 51.6 | – | 10 | 158.8 | 8 | 23 | 152 |
| 2 9/16″ | 65.9 | 230 | 3 | – | 6.75 | 102.77 | 132 | 51.2 | 120.7 | 92.1 | 57.2 | – | 10 | 184.2 | 8 | 26 | 153 |
| 3 1/16″ | 78.6 | 270 | 3 | – | 7.54 | 119 | 152 | 58.4 | 142.1 | 110.2 | 63.5 | – | 10 | 215.9 | 8 | 29 | 154 |
| 4 1/16″ | 104 | 315 | 3 | – | 8.33 | 150.62 | 185 | 70.3 | 182.6 | 146.1 | 73.1 | – | 10 | 258.8 | 8 | 32 | 155 |
| 5 1/8″ | 131 | 360 | 3 | 9.5 | 9.53 | 176.66 | 221 | 79.4 | 223.8 | 182.6 | 81 | 6.4 | 10 | 300 | 12 | 32 | 169 |
| 7 1/16″ | 180.2 | 480 | 6 | 11.1 | 11.11 | 241.83 | 302 | 103.2 | 301.6 | 254 | 95.3 | 9.7 | 16 | 403.2 | 12 | 42 | 156 |
| 9 “ | 229.4 | 550 | 6 | 12.7 | 12.7 | 299.06 | 359 | 123.9 | 374.7 | 327.1 | 93.7 | 9.7 | 16 | 476.3 | 16 | 42 | 157 |
| 11″ | 280.2 | 655 | 6 | 14.3 | 14.29 | 357.23 | 429 | 141.3 | 450.9 | 400.1 | 103.2 | 14.2 | 16 | 565.2 | 16 | 48 | 158 |
| 13 5/8″ | 346.9 | 770 | 6 | 15.9 | 15.88 | 432.64 | 518 | 168.3 | 552.5 | 495.3 | 114.3 | 17.5 | 16 | 673.1 | 20 | 51 | 159 |
| 16 3/4″ | 426.2 | 870 | 6 | 8.3 | 8.33 | 478.33 | 576 | 168.3 | 655.6 | 601.7 | 76.2 | 30.2 | 19 | 776.3 | 24 | 51 | 162 |
| 18 3/4″ | 477 | 1040 | 6 | 18.3 | 18.26 | 577.9 | 697 | 223.1 | 752.5 | 674.7 | 155.6 | 25.4 | 16 | 925.5 | 24 | 61 | 164 |
| 21 1/4″ | 540.5 | 1145 | 6 | 19.1 | 19.05 | 647.88 | 781 | 241.3 | 847.7 | 762 | 165.1 | 31.8 | 21 | 1022.4 | 24 | 67 | 166 |
API Hub & Clamp Connector Datasheet
| Max Working Pressure | 2,000 PSI | 3,000 PSI | 5,000 PSI | 10,000 PSI | 15,000 PSI | 20,000 PSI |
|---|---|---|---|---|---|---|
| Test Pressure | 3,000 PSI | 4,500 PSI | 7,500 PSI | 15,000 PSI | 22,500 PSI | 30,000 PSI |
| Product Spec Levels | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 |
| API Temperature Rating | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) |
| To | To | To | To | To | To | |
| Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | |
| Min. Yield | 60,000 PSI | 60,000 PSI | 60,000 PSI | 60,000 PSI | 75,000 PSI | 75,000 PSI |
| Min. Tensile | 85,000 PSI | 85,000 PSI | 85,000 PSI | 85,000 PSI | 95,000 PSI | 95,000 PSI |
| Material | API 60K | API 60K | API 60K | API 60K | API 75K | API 75K |
API Flanges Datasheet
| Max. Working Pressure | 2,000 PSI | 3,000 PSI | 5,000 PSI | 10,000 PSI | 15,000 PSI | 20,000 PSI |
|---|---|---|---|---|---|---|
| Test Pressure | 3,000 PSI | 4,500 PSI | 7,500 PSI | 15,000 PSI | 22,500 PSI | 30,000 PSI |
| Product Specification Levels | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 |
| API Temperature Rating | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) |
| To | To | To | To | To | To | |
| Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) |
Flange Section - Integral Flange
| Nominal Size and Bore |
Max Bore |
Out Side Dia |
Tolerance | Max Chamfer |
| B | D | D | C | |
| 2000 PSI | ||||
| 26¾ | 26.78 | 41 | ± 0.12 | 0.25 |
| 30 | 30.03 | 44.19 | ± 0.12 | 0.25 |
| 3000 PSI | ||||
| 26¾ | 26.78 | 43.38 | ± 0.12 | 0.25 |
| 30 | 30.03 | 46.68 | ± 0.12 | 0.25 |
| 5000 PSI | ||||
| 13.3/8 | 13.66 | 26.5 | ± 0.12 | 0.25 |
| 16¾ | 16.78 | 30.38 | ± 0.12 | 0.25 |
| 18¾ | 18.78 | 35.62 | ± 0.12 | 0.25 |
| 21¾ | 21.28 | 39 | ± 0.12 | 0.25 |
| 10000 PSI | ||||
| 1.13/16 | 1.84 | 7.38 | ± 0.06 | 0.12 |
| 2.1/16 | 2.09 | 7.88 | ± 0.06 | 0.12 |
| 2.9/16 | 2.59 | 9.12 | ± 0.06 | 0.12 |
| 3.1/16 | 3.09 | 10.62 | ± 0.06 | 0.12 |
| 4.1/16 | 4.09 | 12.44 | ± 0.06 | 0.12 |
| 5.1/8 | 5.16 | 14.06 | ± 0.06 | 0.12 |
| 7.1/16 | 7.09 | 18.88 | ± 0.12 | 0.25 |
| 9 | 9.03 | 21.75 | ± 0.12 | 0.25 |
| 11 | 11.03 | 25.75 | ± 0.12 | 0.25 |
| 13.5/8 | 13.66 | 30.25 | ± 0.12 | 0.25 |
| 16¾ | 16.78 | 34.31 | ± 0.12 | 0.25 |
| 18¾ | 18.78 | 40.94 | ± 0.12 | 0.25 |
| 21¼ | 21.28 | 45 | ± 0.12 | 0.25 |
| 15000 PSI | ||||
| 1.13/16 | 1.84 | 8.19 | ± 0.06 | 0.12 |
| 2.1/16 | 2.09 | 8.75 | ± 0.06 | 0.12 |
| 2.9/16 | 2.59 | 10 | ± 0.06 | 0.12 |
| 3.1/16 | 3.09 | 11.31 | ± 0.06 | 0.12 |
| 4.1/16 | 4.09 | 14.19 | ± 0.06 | 0.12 |
| 5.1/8 | 5.16 | 16.5 | ± 0.06 | 0.12 |
| 7.1/16 | 7.09 | 19.88 | ± 0.12 | 0.25 |
| 9 | 9.03 | 25.5 | ± 0.12 | 0.25 |
| 11 | 11.03 | 32 | ± 0.12 | 0.25 |
| 13.5/8 | 13.66 | 34.88 | ± 0.12 | 0.25 |
| 18¾ | 18.78 | 45.75 | ± 0.12 | 0.25 |
| 20000 PSI | ||||
| 1.13/16 | 1.84 | 10.12 | ± 0.06 | 0.12 |
| 2.1/16 | 2.09 | 11.31 | ± 0.06 | 0.12 |
| 2.9/16 | 2.59 | 12.81 | ± 0.06 | 0.12 |
| 3.1/16 | 3.09 | 14.06 | ± 0.06 | 0.12 |
| 4.1/16 | 4.09 | 17.56 | ± 0.06 | 0.12 |
| 7.1/16 | 7.09 | 25.81 | ± 0.12 | 0.25 |
| 9 | 9.03 | 31.69 | ± 0.12 | 0.25 |
| 11 | 11.03 | 34.75 | ± 0.12 | 0.25 |
| 13.5/8 | 13.66 | 45.75 | ± 0.12 | 0.25 |
| Nominal Size and Bore |
Dia Raised Face |
Total THK |
Large Dia Hub |
Small Dia Hub |
| F | T | A | E | |
| 2000 PSI | ||||
| 26¾ | 31.69 | 4.97 | 32.91 | 29.25 |
| 30 | 35.75 | 5.28 | 36.69 | 32.8 |
| 3000 PSI | ||||
| 26¾ | 32.75 | 6.34 | 34.25 | 30.56 |
| 30 | 36.31 | 6.58 | 38.19 | 34.3 |
| 5000 PSI | ||||
| 13.3/8 | 18 | 4.44 | 18.94 | 16.69 |
| 16¾ | 21.06 | 5.13 | 21.88 | 20.75 |
| 18¾ | 24.69 | 6.53 | 26.56 | 23.56 |
| 21¾ | 27.62 | 7.12 | 29.88 | 26.75 |
| 10000 PSI | ||||
| 1.13/16 | 4.12 | 1.66 | 3.5 | 2.56 |
| 2.1/16 | 4.38 | 1.73 | 3.94 | 2.94 |
| 2.9/16 | 5.19 | 2.02 | 4.75 | 3.62 |
| 3.1/16 | 6 | 2.3 | 5.59 | 4.34 |
| 4.1/16 | 7.28 | 2.77 | 7.19 | 5.75 |
| 5.1/8 | 8.69 | 3.12 | 8.81 | 7.19 |
| 7.1/16 | 11.88 | 4.06 | 11.88 | 10 |
| 9 | 14.12 | 4.88 | 14.75 | 12.88 |
| 11 | 16.88 | 5.56 | 17.75 | 15.75 |
| 13.5/8 | 20.38 | 6.62 | 21.75 | 19.5 |
| 16¾ | 22.69 | 6.62 | 25.81 | 23.69 |
| 18¾ | 27.44 | 8.78 | 29.62 | 26.56 |
| 21¼ | 30.75 | 9.5 | 33.38 | 30 |
| 15000 PSI | ||||
| 1.13/16 | 4.19 | 1.78 | 3.84 | 2.81 |
| 2.1/16 | 4.5 | 2 | 4.38 | 3.25 |
| 2.9/16 | 5.25 | 2.25 | 5.06 | 3.94 |
| 3.1/16 | 6.06 | 2.53 | 6.06 | 4.81 |
| 4.1/16 | 7.62 | 3.09 | 7.69 | 6.25 |
| 5.1/8 | 8.88 | 3.88 | 9.62 | 7.88 |
| 7.1/16 | 12 | 4.6 | 12.81 | 10.88 |
| 9 | 15 | 5.75 | 17 | 13.75 |
| 11 | 17.88 | 7.38 | 23 | 16.81 |
| 13.5/8 | 21.31 | 8.06 | 23.44 | 20.81 |
| 18¾ | 28.44 | 10.06 | 32 | 28.75 |
| 20000 PSI | ||||
| 1.13/16 | 4.62 | 2.5 | 5.25 | 4.31 |
| 2.1/16 | 5.19 | 2.81 | 6.06 | 5 |
| 2.9/16 | 5.94 | 3.12 | 6.81 | 5.69 |
| 3.1/16 | 6.75 | 3.38 | 7.56 | 6.31 |
| 4.1/16 | 8.62 | 4.19 | 9.56 | 8.12 |
| 7.1/16 | 13.88 | 6.5 | 15.19 | 13.31 |
| 9 | 17.38 | 8.06 | 18.94 | 16.88 |
| 11 | 19.88 | 8.81 | 22.31 | 20 |
| 13.5/8 | 24.19 | 11.5 | 27.31 | 24.75 |
API Flanges Tolerance
| Dia Bolt Holes |
Bolt Hole Tolerance |
Length Bolts |
Ring No (R or RX) |
|
| 2000 PSI | ||||
| 26¾ | 1.88 | +0.09 | 13.75 | 167 |
| 30 | 1.75 | +0.09 | 14.25 | 303 |
| 3000 PSI | ||||
| 26¾ | 2.12 | +0.09 | 17 | 168 |
| 30 | 2 | +0.09 | 17.75 | 303 |
| 5000 PSI | ||||
| 13.3/8 | 1.75 | +0.09 | 12.5 | 160 |
| 16¾ | 2 | +0.09 | 14.5 | 162 |
| 18¾ | 2.12 | +0.09 | 17.5 | 163 |
| 21¾ | 2.12 | +0.09 | 18.75 | 165 |
| 10000 PSI | ||||
| 1.13/16 | 0.88 | +0.06 | 5 | 151 |
| 2.1/16 | 0.88 | +0.06 | 5.2 | 152 |
| 2.9/16 | 1 | +0.06 | 6 | 153 |
| 3.1/16 | 1.12 | +0.06 | 6.75 | 154 |
| 4.1/16 | 1.25 | +0.06 | 8 | 155 |
| 5.1/8 | 1.25 | +0.06 | 8.75 | 169 |
| 7.1/16 | 1.62 | +0.09 | 11.25 | 156 |
| 9 | 1.62 | +0.09 | 13 | 157 |
| 11 | 1.88 | +0.09 | 15 | 158 |
| 13.5/8 | 2 | +0.09 | 17.25 | 159 |
| 16¾ | 2 | +0.09 | 17.5 | 162 |
| 18¾ | 2.38 | +0.09 | 22.5 | 164 |
| 21¼ | 2.62 | +0.09 | 24.5 | 166 |
| 15000 PSI | ||||
| 1.13/16 | 1 | +0.06 | 5.5 | 151 |
| 2.1/16 | 1 | +0.06 | 6 | 152 |
| 2.9/16 | 1.12 | +0.06 | 6.75 | 153 |
| 3.1/16 | 1.25 | +0.06 | 7.5 | 154 |
| 4.1/16 | 1.5 | +0.06 | 9.25 | 155 |
| 5.1/8 | 1.62 | +0.09 | 11.5 | 169 |
| 7.1/16 | 1.62 | +0.09 | 12.75 | 156 |
| 9 | 2 | +0.09 | 15.75 | 157 |
| 11 | 2.12 | +0.09 | 19.25 | 158 |
| 13.5/8 | 2.38 | +0.09 | 21.25 | 159 |
| 18¾ | 3.12 | +0.12 | 26.75 | 164 |
| 20000 PSI | ||||
| 1.13/16 | 1.12 | +0.06 | 7.5 | 151 |
| 2.1/16 | 1.25 | +0.06 | 8.25 | 152 |
| 2.9/16 | 1.38 | +0.06 | 9.25 | 153 |
| 3.1/16 | 1.5 | +0.06 | 10 | 154 |
| 4.1/16 | 1.88 | +0.09 | 12.25 | 155 |
| 7.1/16 | 2.12 | +0.09 | 17.5 | 156 |
| 9 | 2.62 | +0.09 | 22.38 | 157 |
| 11 | 2.88 | +0.09 | 23.75 | 158 |
| 13.5/8 | 3.12 | +0.12 | 30 | 159 |
Weight Chart of API Flanges
| NPS In Inches | DN In Millimeter | Flange Outside Daimeter (O.D.) A In Millimeter | Flanges Thickness D In Millimeter | API SORF Flange Weight | API WN Flange Weight | API BLRF Flange Weight |
| 1/ 2 | 15 | 88.9 | 11.2 | 0.4 | 0.5 | 0.4 |
| 3/ 4 | 20 | 98.6 | 12.7 | 0.6 | 0.7 | 0.6 |
| 1 | 25 | 108 | 14.2 | 0.8 | 1 | 0.9 |
| 1 1/ 4 | 32 | 117.3 | 15.7 | 1 | 1.3 | 1.2 |
| 1 1/ 2 | 40 | 127 | 17.5 | 1.3 | 1.7 | 1.5 |
| 2 | 50 | 152.4 | 19.1 | 2.1 | 2.6 | 2.4 |
| 2 1/ 2 | 65 | 177.8 | 22.4 | 3.3 | 4.1 | 3.9 |
| 3 | 80 | 190.5 | 23.9 | 3.9 | 4.9 | 4.9 |
| 3 1/ 2 | 90 | 215.9 | 23.9 | 4.8 | 6.1 | 6.2 |
| 4 | 100 | 228.6 | 23.9 | 5.3 | 6.8 | 7.0 |
| 5 | 125 | 254 | 23.9 | 6.1 | 8.6 | 8.6 |
| 6 | 150 | 279.4 | 25.4 | 7.5 | 10.6 | 11.3 |
| 8 | 200 | 342.9 | 28.4 | 12.1 | 17.6 | 19.6 |
| 10 | 250 | 406.4 | 30.2 | 16.5 | 24 | 28.6 |
| 12 | 300 | 482.6 | 31.8 | 26.2 | 36.5 | 43.2 |
| 14 | 350 | 533.4 | 35.1 | 34.6 | 48.4 | 58.1 |
| 16 | 400 | 596.9 | 36.6 | 44.8 | 60.6 | 76.1 |
| 18 | 450 | 635 | 39.6 | 48.9 | 68.3 | 93.7 |
| 20 | 500 | 698.5 | 42.9 | 61.9 | 84.5 | 122.0 |
| 24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
Pressure classes & Size Comparison of ASME VS API Flanges
| API vs. ASME/ANSI Flanges with the same Dimensions | ||||
|---|---|---|---|---|
| Flange | Pressure Class Rating (psi) |
Nominal Size Range (inches) |
||
| ASME/ANSI B16.5 | API 6A | ASME/ANSI B16.5 | API 6A1) | |
| Weld neck | 600 | 2000 | 1/2 – 24 | 113/16 – 11 |
| 900 | 3000 | |||
| 1500 | 5000 | |||
| Blind and Threaded | 600 | 2000 | 113/16 – 211/4 | |
| 900 | 3000 | 113/16 – 203/4 | ||
| 1500 | 5000 | 113/16 – 11 | ||
API Flange Material
| Carbon Steel API Flanges | ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80) |
| Stainless Steel API Flanges | ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409 |
| Alloy Steel API Flanges | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |
| Titanium API Flanges | ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5 |
| Copper API Flanges | T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc |
| Copper Nickel API Flanges | ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640 |
| Brass API Flanges | 3602 / 2604 / H59 / H62 / etc. |
| Inconel API Flanges | ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 API Flanges |
| Hastelloy API Flanges | ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges |
| Monel API Flanges | ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500) |
| Alloy 20 API Flanges | ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3 |
| Aluminium API Flanges | 5052 /6061/ 6063 / 2017 / 7075 / etc. |
| Nickel API Flanges | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
| Duplex API Flanges | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Super Duplex API Flanges | S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Incoloy API Flanges | ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges |
| 254 Smo API Flanges | ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547 |
| Nimonic API Flanges | Nimonic 75, Nimonic 80A, Nimonic 90 |
| Other API Flanges Material | Tin bronze, Aluminum bronze, Lead bronze |