Flange

 

Flange

The usual process of flange production, especially in large sizes, includes cutting and welding of several pieces. This method requires very high precision and long welding time and due to the stress on the flange, the quality is effectively reduced. The flange produced by this method has a very low quality but acceptable appearance. After a short period of time, its poor quality and inefficiency will appear.
In order to solve this important problem, Aka Industrial Group has developed a Hot-Roll Machine. Using this machine, the part is rolled when it is hot after several heat treatments and it is manufactured in form of one seamless piece. Additionally, in this method, Molecular structure is preserved and the produced flange has high quality as the result.
Plain, slip-on and welding neck flanges are manufactured in accordance with DIN, ASTM, AWWA and ANSI standards from 80 mm to 3000 mm by the hot rolling and forging methods. Epoxy coating using the electrostatic method is applied on all parts of AKA products.

Flange

Flange
DIN 2501
Pipe PN6 PN10
Flange Raised Face Flange Raised Face
DN Outside Diameter
d1		 Diameter
D		 Pitch Circle
K		 Hole Diameter
d2		 Holes
N		 Diameter
d3		 Height
F		 Diameter
D		 Pitch Circle
K		 Hole Diameter
d2		 Holes
N		 Diameter
d3		 Height
F
80 89 190 150 18 4 128 2 200 160 18 8 138 2
100 114 210 170 18 4 148 2 220 180 18 8 158 2
125 140 240 200 18 8 178 2 250 210 18 8 188 2
150 168 265 225 18 8 202 2 285 240 22 8 212 2
200 219 320 280 18 8 258 2 340 295 22 8 268 2
250 273 375 335 18 12 312 2 395 350 22 12 320 2
300 324 440 395 22 12 365 2 445 400 22 12 370 2
350 355 490 445 22 12 415 2 505 460 22 16 430 2
400 406 540 495 22 16 465 2 565 515 26 16 482 2
500 508 645 600 22 20 570 2 670 620 26 20 585 2
600 610 755 705 26 20 670 2 780 725 30 20 685 2
700 711 860 810 26 24 775 3 895 840 30 24 800 3
800 813 975 920 30 24 880 3 1015 950 33 24 905 3
900 914 1075 1020 30 24 980 4 1115 1050 33 28 1005 3
1000 1016 1175 1120 30 28 1080 4 1230 1160 36 28 1110 4
1200 1220 1405 1340 33 32 1295 4 1455 1380 39 32 1330 4
1400 1420 1630 1560 36 36 1510 4 1675 1590 42 36 1535 4
1600 1620 1830 1760 36 40 1710 5 1915 1820 48 40 1760 5
1800 1820 2045 1970 39 44 1920 5 2115 2020 48 44 1960 5
2000 2020 2265 2180 42 48 2125 5 2325 2230 48 48 2170 5
2200 2220 2475 2390 42 52 2335 5 2550 2440 56 52 2370 5
2400 2420 2685 2600 42 56 2545 5 2760 2650 56 56 2570 5
2600 2620 2905 2810 48 60 2665 6 2960 2850 56 60 2680 6
2800 2820 3115 3200 48 64 2865 6 3180 3070 56 64 2882 6
3000 3020 3315 3220 48 68 3068 6 3405 3290 62 68 3085 6
                           
                        Unit: mm
DIN 2501
Pipe PN16 PN25
Flange Raised Face Flange Raised Face
DN Outside Diameter Diameter Pitch Circle Hole Diameter Holes Diameter Height Diameter Pitch Circle Hole Diameter Holes Diameter Height
d1 D K d2 N d3 F D K d2 N d3 F
80 89 200 150 18 8 138 2 200 160 18 8 138 2
100 114 220 170 18 8 158 2 235 190 22 8 162 2
125 140 250 200 18 8 188 2 270 220 26 8 188 2
150 168 285 225 22 8 212 2 300 250 26 8 218 2
200 219 340 280 22 12 268 2 360 310 26 12 278 2
250 273 405 335 26 12 320 2 425 370 30 12 335 2
300 324 460 395 26 12 378 2 485 430 30 16 395 2
350 355 520 445 26 16 438 3 555 490 33 16 450 2
400 406 580 495 30 16 490 3 620 550 36 16 505 2
500 508 715 600 33 20 610 3 730 660 36 20 615 2
600 610 840 705 36 20 725 3 845 770 39 20 720 2
700 711 910 810 36 24 795 3 960 875 42 24 820 3
800 812 1025 920 39 24 900 3 1085 990 48 24 930 3
900 914 1125 1020 39 28 1000 4 1185 1090 48 28 1030 3
1000 1016 1255 1120 42 28 1115 4 1320 1210 56 28 1140 4
1200 1220 1485 1340 48 32 1330 4 1530 1420 56 32 1350 4
1400 1422 1685 1560 48 36 1530 4 1755 1640 62 36 1560 4
1600 1626 1930 1760 56 40 1750 5 1975 1860 62 40 1780 5
1800 1829 2130 1970 56 44 1950 5 2195 2070 70 44 1985 5
2000 2032 2345 2180 62 48 2150 5 2425 2300 70 48 2210 5
2200 2235 2555 2390 62 52 2360 5 - - - - - -
                           
                        Unit: mm
DIN 2501
Pipe PN40 PN64
Flange Raised Face Flange Raised Face
DN Outside Diameter Diameter Pitch Circle Hole Diameter Holes Height Diameter Pitch Circle Hole Diameter Holes Height
d1 D K d2 N F D K d2 N F
80 89 200 160 18 8 2 215 170 22 8 2
100 114 235 180 22 8 2 250 200 26 8 2
125 140 270 220 26 8 2 295 240 30 8 2
150 168 300 250 26 8 2 345 280 33 8 2
200 219 375 320 30 12 2 415 345 36 12 2
250 273 450 385 33 12 2 470 400 36 12 2
300 324 515 450 33 16 2 530 460 36 16 2
350 355 580 510 36 16 2 600 525 39 16 2
400 406 660 585 39 16 2 670 585 42 16 2
500 508 755 670 42 20 2 800 705 48 20 2
600 610 890 795 48 20 2 930 820 56 20 2
700 711 995 900 48 24 3 1045 935 56 24 3
800 812 1140 1030 56 24 3 1165 1050 62 24 3
900 914 1250 1140 56 28 3 1285 1170 62 28 3
1000 1016 1360 1250 56 28 4 1415 1290 70 28 4
1200 1220 1575 1460 62 32 4 1665 1530 78 32 4
1400 1422 1795 1680 62 36 4 - - - - -
1600 1626 2025 1900 70 40 5 - - - - -
                       
                    Unit: mm

Please contact us for specifications or ordering products with larger diameters