
Product NameDDL series single suction low-noise centrifugal fan Widely used for smoke exhaust and fresh air supply in kitchens such as canteens, hotels, and restaurants, as well as ventilation in industrial and mining enterprises, entertainment venues, basements, and other places. It is also widely used in production equipment such as grain machinery, chemical machinery, and plastic machinery Details:
1、 Application and Characteristics The DDL series centrifugal fan adopts a square structure and can be installed in any direction from the outlet of the direct drive fan without the need for angle iron brackets. It has obvious advantages such as high air volume, constant air pressure, low noise, small size, and easy installation. It is an ideal fan for supporting environmental ventilation engineering facilities. The DDL-I fan is divided into two structural types: A-type direct drive and E-type belt drive. It adopts an efficient forward leaning multi wing centrifugal impeller and has a large air volume for the same machine number. Equipped with explosion-proof motor and aluminum (stainless steel) impeller, it can be made into explosion-proof type. The DDL-II fan adopts A-type direct drive and is equipped with an efficient rear curved centrifugal impeller. It has a * air collector noise reduction function, with high voltage division and lower noise for the same machine number. It can be made into anti-corrosion and explosion-proof types according to user requirements. 2、 DDL Type I Performance Parameter Table (Forward Multi Wing) machine number | speed (rpm) | air volume (m3/h) | wind pressure (Pa) | power (kW) | noise dB(A) | weight (Kg) | 2.5A | 720 | 1000 | 130 | 0.25 | 48 | 32 | 1200 | 126 | 1400 | 124 | 960 | 1324 | 225 | 0.37 | 51 | 36 | 1580 | 220 | 1850 | 218 | 1450 | 2000 | 515 | 1.1 | 59 | 43 | 2400 | 505 | 2800 | 500 | 2.8A | 720 | 1550 | 170 | 0.37 | 52 | 61 | 1800 | 166 | 2150 | 162 | 960 | 2050 | 300 | 0.75 | 58 | 66 | 2380 | 293 | 2840 | 285 | 1450 | 3300 | 660 | 1.5 | 65 | 68 | 3410 | 650 | 3600 | 640 | 3.15A | 720 | 2940 | 225 | 0.55 | 59 | 72 | 3100 | 215 | 3240 | 205 | 960 | 2980 | 400 | 0.75 | 64 | 79 | 3200 | 395 | 3340 | 380 | 1450 | 3760 | 920 | 2.2 | 68 | 83 | 4100 | 910 | 4320 | 890 | 3.55A | 720 | 2800 | 260 | 0.55 | 58 | 78 | 3100 | 240 | 3420 | 230 | 960 | 3400 | 450 | 1.1 | 65 | 82 | 3750 | 440 | 3960 | 425 | 1450 | 5210 | 1070 | 3 | 71 | 88 | 5500 | 1035 | 5760 | 1000 | 4A | 720 | 3460 | 325 | 0.75 | 59 | 85 | 3700 | 315 | 3960 | 310 | 960 | 4300 | 560 | 1.5 | 66 | 91 | 4650 | 545 | 4860 | 530 | 1450 | 5120 | 1280 | 4 | 70 | 98 | 5430 | 1240 | 5760 | 1190 | | machine number | speed (rpm) | air volume (m3/h) | wind pressure (Pa) | power (kW) | noise dB(A) | weight (Kg) | 4.5 A/E | 720 | 5150 | 460 | 1.5 | 66 | 117/130 | 5300 | 450 | 5760 | 455 | 860 | 5900 | 670 | 2.2 | 68 | 130 | 6250 | 665 | 6480 | 650 | 960 | 6680 | 820 | 3 | 68 | 123/137 | 6950 | 815 | 7200 | 800 | 5E | 600 | 8500 | 450 | 2.2 | 65 | 130 | 9000 | 445 | 9360 | 435 | 700 | 8135 | 680 | 3 | 70 | 155 | 8500 | 675 | 9000 | 660 | 800 | 9350 | 780 | 4 | 72 | 160 | 9900 | 760 | 10440 | 740 | 5.6E | 500 | 9800 | 370 | 2.2 | 65 | 200 | 1000 | 365 | 11520 | 350 | 600 | 9100 | 580 | 3 | 69 | 225 | 9900 | 575 | 11500 | 560 | 700 | 9450 | 700 | 4 | 72 | 250 | 9890 | 685 | 10800 | 670 | 6.3E | 500 | 9750 | 470 | 3 | 68 | 350 | 10050 | 465 | 12600 | 455 | 600 | 12500 | 700 | 5.5 | 70 | 380 | 14000 | 695 | 15480 | 680 | 650 | 15680 | 800 | 7.5 | 73 | 390 | 17650 | 795 | 18360 | 780 | 7.1E | 450 | 11250 | 480 | 4 | 69 | 450 | 14320 | 475 | 16560 | 460 | 550 | 19800 | 710 | 7.5 | 74 | 460 | 20050 | 700 | 23040 | 680 | 600 | 22860 | 800 | 11 | 77 | 470 | 25500 | 790 | 28000 | 760 | 8E | 400 | 23000 | 450 | 11 | 72 | 520 | 25200 | 420 | 26700 | 380 | 500 | 26000 | 560 | 15 | 76 | 540 | 29000 | 530 | 32000 | 510 | 550 | 33000 | 680 | 18.5 | 79 | 560 | 36000 | 650 | 38000 | 620 | |
3、 Outline dimension table of DDL-I fan (unit: mm) machine number | air inlet | air vent | Appearance and installation base | Φ1 | Φ2 | Φ3 | n-d1 | E | A | A1 | n-A2 | B | B1 | n-B2 | n-d2 | C | L | H | H1 | W | M | d3 | 2.5A | 330 | 300 | 250 | 6-Φ8.5 | 100 | 180 | 220 | 2-110 | 220 | 260 | 2-130 | 8-Φ8.5 | 40 | 510 | 440 | 245 | 260 | 80 | Φ12.5 | 2.8A | 360 | 330 | 280 | 8-Φ8.5 | 100 | 190 | 230 | 2-115 | 245 | 285 | 3-95 | 10-Φ8.5 | 40 | 570 | 500 | 275 | 270 | 80 | Φ12.5 | 3.15A | 395 | 365 | 315 | 8-Φ8.5 | 100 | 210 | 250 | 2-125 | 280 | 321 | 3-107 | 10-Φ8.5 | 40 | 630 | 550 | 310 | 290 | 80 | Φ12.5 | 3.55A | 435 | 405 | 355 | 8-Φ8.5 | 100 | 220 | 260 | 2-130 | 320 | 360 | 3-120 | 10-Φ8.5 | 40 | 700 | 620 | 340 | 300 | 100 | Φ14 | 4A | 480 | 450 | 400 | 10-Φ10.5 | 100 | 240 | 282 | 3-94 | 360 | 400 | 4-100 | 14-Φ10.5 | 40 | 800 | 680 | 380 | 320 | 100 | Φ14 | 4.5A | 540 | 500 | 450 | 12-Φ10.5 | 120 | 275 | 315 | 3-105 | 400 | 440 | 4-110 | 14-Φ10.5 | 40 | 880 | 750 | 420 | 355 | 100 | Φ14 | 5E | 590 | 550 | 500 | 12-Φ10.5 | 120 | 285 | 327 | 3-109 | 440 | 480 | 4-120 | 14-Φ10.5 | 40 | 980 | 830 | 470 | 365 | 100 | Φ14 | 5.6E | 650 | 610 | 560 | 14-Φ12.5 | 120 | 300 | 342 | 3-114 | 500 | 540 | 5-108 | 16-Φ12.5 | 40 | 1080 | 920 | 520 | 380 | 100 | Φ14 | 6.3E | 720 | 680 | 630 | 14-Φ12.5 | 120 | 350 | 390 | 3-130 | 550 | 590 | 5-1189 | 16-Φ12.5 | 40 | 1200 | 1010 | 570 | 430 | 100 | Φ14 | 7.1E | 800 | 760 | 710 | 16-Φ12.5 | 140 | 380 | 440 | 4-110 | 630 | 680 | 5-136 | 18-Φ12.5 | 50 | 1350 | 1140 | 650 | 480 | 100 | Φ16 | 8.0E | 890 | 850 | 800 | 16-Φ12.5 | 140 | 450 | 500 | 4-125 | 700 | 750 | 5-150 | 18-Φ12.5 | 50 | 1510 | 1290 | 730 | 550 | 100 | Φ16 |
4、 Performance parameter table of DDL-II type (backward plate) machine number | speed (rpm) | air volume (m3/h) | wind pressure (Pa) | power (kW) | noise dB(A) | weight (Kg) | 3.55 | 1450 | 1988 | 371 | 0.55 | 69 | 60 | 2566 | 299 | 2987 | 247 | 4.0 | 1450 | 3007 | 500 | 0.75 | 71 | 78 | 3808 | 399 | 4406 | 344 | 4.5 | 1450 | 3845 | 617 | 1.1 | 74 | 94 | 4981 | 470 | 5440 | 426 | 5.0 | 1450 | 5803 | 772 | 2.2 | 78 | 122 | 7522 | 609 | 8197 | 500 | 5.6 | 1450 | 8124 | 965 | 3 | 82 | 148 | 10530 | 761 | 11475 | 625 | 960 | 4781 | 389 | 1.5 | 73 | 6196 | 307 | 7219 | 252 | 6.0 | 1450 | 9992 | 1106 | 4 | 85 | 162 | 12952 | 872 | 14114 | 716 | | machine number | speed (rpm) | air volume (m3/h) | wind pressure (Pa) | power (kW) | noise dB(A) | weight (Kg) | 6.0 | 960 | 6594 | 486 | 1.5 | 76 | 162 | 8548 | 383 | |
| 315 | 6.3 | 1450 | 10029 | 1112 | 5.5 | 85 | 177 | 12998 | 878 | 15142 | 725 | 960 | 6640 | 486 | 2.2 | 77 | 162 | 8606 | 384 | 10026 | 316 | 7.1 | 1450 | 13618 | 1508 | 11 | 87 | 304 | 18182 | 1261 | 21227 | 1091 | 960 | 9018 | 657 | 4 | 78 | 224 | 12041 | 549 | 14057 | 477 | 8.0 | 1450 | 20326 | 1959 | 15 | 89 | 356 | 27138 | 1637 | 31176 | 1416 | 960 | 13461 | 854 | 5.5 | 79 | 246 | 17972 | 714 | 20882 | 619 | | | | |
Outline dimension table of DDL-II fan (unit: mm) machine number | inlet size | Air outlet size | Overall dimensions | D1 | D2 | D3 | n-Φd | A1 | A2 | A3 | B1 | B2 | B3 | n-Φd1 | E1 | E2 | E3 | E4 | n-d1 | 3.55 | 370 | 410 | 440 | 8-Φ10.5 | 372 | 342 | 292 | 328 | 298 | 248 | 10-Φ8.5 | 584 | 240 | 290 | 714 | 4-Φ10.5 | 4.0 | 420 | 460 | 500 | 8-Φ10.5 | 395 | 355 | 315 | 360 | 330 | 280 | 12-Φ8.5 | 647 | 265 | 322 | 789 | 4-Φ10.5 | 4.5 | 470 | 510 | 530 | 8-Φ10.5 | 435 | 405 | 355 | 395 | 365 | 315 | 14-Φ8.5 | 728 | 298 | 363 | 885 | 4-Φ10.5 | 5.0 | 520 | 560 | 600 | 12-Φ10.5 | 475 | 445 | 395 | 430 | 400 | 350 | 14-Φ8.5 | 809 | 331 | 403 | 981 | 4-Φ10.5 | 5.6 | 580 | 620 | 660 | 12-Φ10.5 | 515 | 485 | 435 | 472 | 442 | 392 | 16-Φ8.5 | 906 | 370 | 451 | 1098 | 4-Φ10.5 | 6.0 | 620 | 660 | 700 | 12-Φ10.5 | 555 | 525 | 475 | 502 | 472 | 422 | 16-Φ8.5 | 969 | 396 | 483 | 1171 | 4-Φ10.5 | 6.3 | 660 | 690 | 730 | 12-Φ10.5 | 555 | 525 | 475 | 521 | 491 | 441 | 16-Φ8.5 | 969 | 396 | 483 | 1171 | 4-Φ10.5 | 7.1 | 730 | 780 | 820 | 12-Φ12.5 | 625 | 595 | 545 | 577 | 547 | 497 | 18-Φ8.5 | 1129 | 462 | 574 | 1380 | 4-Φ12.5 | 8.0 | 820 | 870 | 910 | 12-Φ12.5 | 705 | 675 | 625 | 640 | 640 | 560 | 18-Φ8.5 | 1291 | 528 | 655 | 1578 | 4-Φ12.5 | 8.5 | 870 | 920 | 96 | 12-Φ12.5 | 750 | 720 | 670 | 680 | 640 | 600 | 18-Φ8.5 | 1372 | 561 | 696 | 1677 | 4-Φ12.5 |
5、 Schematic diagram of inlet and outlet directions for DDL type fan This series of fans is divided into A-type direct drive and E-type belt drive. According to the rotation direction of the impeller, it is divided into left and right rotation. The rotation direction is based on the motor or pulley side. The air outlet is divided into four types: 00, 900, 1800, and 2700. Please specify when ordering.
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