4-72型离心式通风机可输送空气和其他不自燃的、对人体无害的、对钢材无腐蚀性的气体。气体内不允许有粘性物质，所含尘土及硬质颗粒物不大于150mg/m3。气体温度不得超过80℃。该风机具有良好的气动性能、运转平衡、振动小、效率高、寿命长等特点。广泛适用于工矿企业、大型建筑物、宾馆酒楼等室内通风换气。
b4-72型为防爆型离心式通风机，主要由铝叶轮、机壳、进风口等部分与防爆电机组成，可作为易燃挥发性气体的通风换气之用，其性能与安装尺寸同于4-72型。
| 4-72a.d型主要参数 | ||||
|
型号及机号 （№） |
转速 (r/min) |
配用电机 (kw-p) |
流量 (m3/h) |
全压 (pa) |
| 2.8a | 2900 | 1.5-2 | 1131-2356 | 994-606 |
| 3.2a |
2900 1450 |
2.2-2 1.1-4 |
1688-3517 884-1758 |
1300-792 324-198 |
| 3.6a |
2900 1450 |
3.0-2 1.1-4 |
2664-5268 1332-2634 |
1578-989 393-247 |
| 4a |
2900 1450 |
5.5-2 1.1-4 |
4012-7419 2006-3709 |
2014-1320 501-329 |
| 4.5a |
2900 1450 |
7.5-2 1.1-4 |
5712-10562 2856-5281 |
2554-1673 634-416 |
| 5a |
2900 1450 |
15-2 2.2-4 |
7728-15445 3864-7728 |
3187-2019 790-502 |
| 6a |
1450 960 |
4.0-4 1.5-6 |
6677-13353 4420-8841 |
1139-724 498-317 |
| 6d |
1450 960 |
4.0-4 1.5-6 |
6677-13353 4420-8841 |
1139-724 498-317 |
| 8d |
1450 960 730 |
18.5-4 5.5-6 3.0-8 |
15826-29344 10478-19428 7968-14773 |
2032-1490 887-651 512-376 |
| 10d |
1450 960 730 |
55-4 18.5-6 7.5-8 |
40441-56605 26775-37476 20360-27497 |
3202-2532 1395-1104 805-637 |
| 12d |
960 730 |
45-6 18.5-8 |
46267-64759 35182-49244 |
2013-1593 1169-919 |
| 4-72c主要参数 | ||||
|
型号及机号 （№） |
转速 (r/min) |
配用电机 (kw-p) |
流量 (m3/h) |
全压 (pa) |
| 2.8 | 2900 | 1.1-2 | 1131-2356 | 994-606 |
| 2200 | 0.37-2 | 994-1522 | 556-443 | |
| 1800 | 0.25-2 | 813-1245 | 372-298 | |
| 3.2 | 2900 | 1.5-2 | 1688-3517 | 1300-792 |
| 2200 | 0.75-2 | 1483-2273 | 726-579 | |
| 1800 | 0.55-2 | 1213-1860 | 488-387 | |
| 3.6 | 2900 | 3-2 | 2664-5263 | 1578-989 |
| 2200 | 1.5-2 | 2310-5263 | 681-723 | |
| 1800 | 0.75-2 | 1890-2810 | 590-483 | |
| 4 | 2900 | 5.5-2 | 4012-7419 | 2100-1320 |
| 2300 | 2.2-2 | 3573-5491 | 1238-917 | |
| 2000 | 1.5-2 | 3107-4775 | 936-694 | |
| 1700 | 1.1-2 | 2641-4058 | 676-501 | |
| 4.5 | 2900 | 7.5-2 | 5712-10562 | 2554-1673 |
| 2300 | 4-2 | 5088-7819 | 1570-1163 | |
| 4.5 | 2000 | 3-2 | 4428-6799 | 1187-879 |
| 1700 | 2.2-2 | 3761-5779 | 858-635 | |
| 5 | 2900 | 15-2 | 7725-15445 | 3187-2019 |
| 2300 | 7.5-2 | 7022-15445 | 4978-1468 | |
| 2000 | 5.5-2 | 6106-9881 | 1495-1110 | |
| 1700 | 3-2 | 5190-8399 | 1080-802 | |
| 5.6 | 2600 | 18.5-2 | 12734-17824 | 3209-2541 |
| 2300 | 15-2 | 11265-15768 | 2511-1989 | |
| 2000 | 7.5-2 | 9795-13711 | 1900-1504 | |
| 1700 | 5.5-4 | 8326-11654 | 1372-1086 | |
| 1400 | 3.0-4 | 6857-9598 | 930-737 | |
| 6 | 2240 | 15-4 | 10314-20628 | 2734-1733 |
| 2000 | 11-4 | 9209-184188 | 2176-1380 | |
| 1800 | 7.5-4 | 8288-16576 | 1790-1116 | |
| 1600 | 5.5-4 | 7367-14734 | 1689-881 | |
| 1250 | 3-4 | 5756-11511 | 846-537 | |
| 1120 | 2.2-4 | 5157-10314 | 679-431 | |
| 900 | 1.5-4 | 4144-8288 | 438-278 | |
| 800 | 1.1-4 | 3684-7367 | 346-220 | |
| 6.3 | 2200 | 18.5-2 | 15342-21474 | 2908-2303 |
| 1900 | 11-2 | 13260-18546 | 2169-1718 | |
| 1600 | 7.5-2 | 11158-15618 | 1538-1218 | |
| 1300 | 4-4 | 9066-12689 | 1015-804 | |
| 1000 | 2.2-4 | 6973-9761 | 600-475 | |
| 700 | 0.75-4 | 4884-6833 | 294-233 | |
| 7.1 | 1800 | 18.5-4 | 15736-25265 | 2422-1801 |
| 1600 | 15-4 | 13987-22835 | 1914-1423 | |
| 1450 | 11-4 | 12676-20513 | 1573-1168 | |
| 1200 | 5.5-4 | 10490-16976 | 1076-800 | |
| 960 | 3.0-4 | 8392-13581 | 689-512 | |
| 700 | 1.5-4 | 6119-9903 | 366-272 | |
| 8 | 1800 | 30-2 | 18648-25240 | 3143-3032 |
| 1800 | 37-2 | 28195-36427 | 2920-2302 | |
| 1600 | 22-2 | 17463-22435 | 2478-2390 | |
| 1600 | 30-2 | 24982-32380 | 2303-1816 | |
| 1250 | 11-4 | 13643-25297 | 1507-1106 | |
| 1250 | 7.5-4 | 12224-15705 | 1209-1166 | |
| 1120 | 11-4 | 17487-22666 | 1124-887 | |
| 8 | 1120 | 5.5-4 | 10914-14022 | 963-929 |
| 1000 | 7.5-2 | 15614-20237 | 895-707 | |
| 900 | 4-4 | 9823-12620 | 779-752 | |
| 900 | 5.5-4 | 14052-18213 | 725-572 | |
| 800 | 3-4 | 8732-13190 | 615-452 | |
| 710 | 3.0-4 | 7749-14368 | 485-356 | |
| 10 | 1250 | 37-4 | 34863-48797 | 2373-1877 |
| 1120 | 30-4 | 31237-43722 | 1902-1505 | |
| 1000 | 18.5-4 | 27890-39038 | 1514-1199 | |
| 900 | 15-4 | 25101-35134 | 1225-970 | |
| 800 | 11-4 | 22312-31230 | 967-766 | |
| 710 | 7.5-4 | 19802-27717 | 761-603 | |
| 630 | 5.5-4 | 17571-24594 | 559-475 | |
| 560 | 4-4 | 15618-21861 | 473-375 | |
| 12 | 1120 | 75-4 | 53978-75552 | 2746-2172 |
| 1000 | 45-4 | 48195-60397 | 2185-1969 | |
| 1000 | 55-4 | 63953-67457 | 1859-1729 | |
| 900 | 37-4 | 43375-60712 | 1767-1399 | |
| 800 | 22-4 | 38556-41973 | 1395-1376 | |
| 800 | 30-4 | 45391-53996 | 1321-1104 | |
| 710 | 18.5-4 | 34218-47895 | 1097-869 | |
| 630 | 15-4 | 30362-42498 | 863-684 | |
| 560 | 7.5-4 | 26989-29381 | 682-673 | |
| 560 | 11-4 | 31774-37776 | 646-5405 | |
| 500 | 7.5-4 | 24907-33728 | 543-430 |
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