74DD Round Air Door main dimensions
DN | D | D1 | D2 | B | L | & | &d | d1 | Number of screw holes |
mm | |||||||||
100 | 195 | 100 | 160 | 80 | 177 | 14 | 17*17 | 14 | 4 |
150 | 250 | 150 | 215 | 80 | 238 | 14 | 17*17 | 14 | 8 |
200 | 305 | 200 | 270 | 80 | 270 | 16 | 17*17 | 14 | 8 |
250 | 365 | 260 | 330 | 90 | 300 | 16 | 17*17 | 14 | 12 |
300 | 430 | 310 | 385 | 180 | 342 | 18 | 17*17 | 14 | 12 |
350 | 480 | 360 | 435 | 180 | 367 | 18 | 17*17 | 14 | 12 |
400 | 535 | 410 | 490 | 180 | 392 | 20 | 17*17 | 18 | 12 |
450 | 585 | 460 | 540 | 180 | 417 | 20 | 17*17 | 18 | 12 |
500 | 645 | 520 | 600 | 180 | 447 | 20 | 17*17 | 18 | 16 |
600 | 745 | 620 | 700 | 180 | 497 | 20 | 17*17 | 18 | 16 |
700 | 850 | 710 | 800 | 260 | 570 | 22 | 32*32 | 18 | 20 |
800 | 950 | 810 | 900 | 260 | 620 | 22 | 32*32 | 18 | 20 |
900 | 1050 | 910 | 1000 | 260 | 670 | 22 | 32*32 | 18 | 20 |
1000 | 1150 | 1010 | 1100 | 260 | 720 | 22 | 32*32 | 22 | 20 |
1100 | 1250 | 1110 | 1200 | 300 | 790 | 24 | 32*32 | 22 | 20 |
1200 | 1350 | 1210 | 1300 | 300 | 840 | 24 | 32*32 | 22 | 20 |
1300 | 1450 | 1310 | 1400 | 300 | 890 | 24 | 32*32 | 22 | 24 |
1400 | 1550 | 1410 | 1500 | 300 | 940 | 24 | 32*32 | 22 | 28 |
1500 | 1650 | 1510 | 1600 | 300 | 990 | 24 | 36*36 | 22 | 28 |
1600 | 1760 | 1610 | 1700 | 350 | 1040 | 24 | 36*36 | 22 | 28 |
1800 | 1963 | 1810 | 1910 | 400 | 1140 | 24 | 42*42 | 26 | 28 |
2000 | 2163 | 2010 | 2110 | 500 | 1240 | 24 | 42*42 | 26 | 32 |
2200 | 2390 | 2200 | 2340 | 550 | 1320 | 24 | 56*56 | 28 | 36 |
