Model No. | Speed(rpm) | Pressure(Pa) | Airflow(m³/h) | Power(kw) |
2.8A | 2900 | 994~606 | 1131~2356 | 15 |
3.6A | 2900 | 1578~989 | 2664~5268 | 3 |
1450 | 393~247 | 1332~2634 | 1.1 | |
4A | 2900 | 2014~1320 | 4012~7419 | 5.5 |
1450 | 501~329 | 2006~3709 | 1.1 | |
5A | 2900 | 3187~2019 | 7728~15455 | 15 |
1450 | 790~502 | 3864~7728 | 2.2 | |
6A | 1450 | 1139~724 | 6677~13353 | 4 |
960 | 498~317 | 4420~8841 | 1.5 | |
10D | 1450 | 3202~2532 | 40441~56605 | 55 |
960 | 1395~1104 | 26775~37476 | 18.5 | |
730 | 805~637 | 20360~28497 | 7.5 | |
12D | 960 | 2013~1593 | 46267~64759 | 45 |
730 | 1160~919 | 35182~49244 | 18.5 | |
8C | 1800 | 3143~2302 | 19646~36427 | 30、37 |
1600 | 2478~1816 | 17463~32380 | 22、30 | |
1250 | 1507~1106 | 13643~25297 | 11 | |
1120 | 1209-887 | 12224~22666 | 7.5、11 | |
1000 | 963~707 | 10914~20237 | 5.5、7.5 | |
900 | 779~572 | 9823~18213 | 4、5.5 | |
800 | 615~452 | 8732~16190 | 3 | |
710 | 485~356 | 7749~14368 | 2.2、3 | |
630 | 381~280 | 6876~12749 | 2.2 | |
12C | 1120 | 2746~2172 | 53979~75552 | 75 |
900 | 1767~1399 | 43375~60712 | 37 | |
800 | 1395~1104 | 38556~53966 | 22、30 | |
710 | 1097~869 | 34218~47895 | 18.5 | |
630 | 863~684 | 30362~42498 | 15 | |
500 | 543~430 | 24097~33728 | 7.5 | |
450 | 440~348 | 21687~30356 | 4、5.5 | |
16B | 900 | 3157~2497 | 102810~143910 | 132、160 |
800 | 2489~1969 | 91392~137920 | 110 | |
710 | 1957~1549 | 81110~113520 | 75 | |
630 | 1538~1218 | 71971~100730 | 55 | |
500 | 967~766 | 57120~79950 | 30 | |
400 | 618~490 | 45696~63960 | 15 | |
315 | 383~303 | 35985~50368 | 7.5 | |
20B | 710 | 3069~2427 | 158410~221730 | 220 |
560 | 1902~1505 | 124950~174890 | 110 | |
500 | 1514~1199 | 111560~156150 | 75 | |
400 | 967~766 | 89250~124920 | 37 | |
355 | 761~603 | 79209~110860 | 30 | |
250 | 377~299 | 55781~78076 | 11 |
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The 4-72 centrifugal fan is a standardized industrial airflow device engineered to move large volumes of air at moderate to high pressures, commonly used in fixed-installation ventilation systems where consistent performance and structural durability are required. Constructed primarily from carbon steel with optional surface treatments such as painting or galvanizing, it features a robust housing designed to withstand continuous operation in demanding environments including factories, warehouses, and mechanical rooms. The fan operates on a direct-drive or belt-drive configuration depending on model specifications, utilizing radial blades that generate stable directional airflow suitable for ducted or plenum applications. Its inlet and outlet are typically flanged for secure connection to ductwork, and the unit is designed for horizontal mounting with vibration dampening supports to minimize transmission of operational noise and mechanical stress to surrounding structures. Maintenance access is provided through removable inspection panels or service hatches, allowing for routine cleaning of impellers and inspection of bearings without full disassembly. The design follows long-established industrial conventions for reliability, ease of integration into existing HVAC infrastructure, and compatibility with standard motor speeds and power ratings, making it a practical choice for retrofitting older systems or specifying new construction projects where proven performance and minimal operational complexity are prioritized over advanced digital controls or variable-speed modulation.
🔹 Robust Construction — Built with heavy-duty carbon steel housing and reinforced mounting brackets to withstand continuous industrial use and harsh environmental conditions.
🔹 Stable Airflow Performance — Radial blade design delivers consistent, non-pulsating airflow ideal for ducted systems and pressurized environments.
🔹 Easy Installation & Integration — Flanged inlet/outlet ports and standardized mounting holes allow quick setup with common ductwork and motor configurations.
🔹 Low Maintenance Requirements — Accessible inspection panels and service hatches enable routine cleaning and bearing checks without full disassembly.
🔹 Quiet Operation — Vibration-dampening mounts and balanced impeller design reduce operational noise, making it suitable for sensitive environments.
🔹 Wide Compatibility — Works with standard AC motors, belt drives, or direct-drive setups — flexible for retrofits or new builds.
🔹 Proven Reliability — Decades of industry use and adherence to classic mechanical design principles ensure long service life with minimal downtime.
🔹 Cost-Effective Solution — Simple mechanical structure, fewer moving parts, and high availability of replacement components lower total ownership cost.
The 4-72 centrifugal fan is a high-efficiency industrial ventilation solution designed for reliable air movement in HVAC systems, factories, warehouses, and commercial buildings. Featuring a robust carbon steel housing, precision-balanced impeller, and low noise operation, this fan delivers stable airflow and consistent static pressure under continuous duty conditions. Equipped with standard flange connections for easy duct attachment and accessible inspection ports for simplified maintenance, the 4-72 series offers long service life with minimal upkeep. Suitable for general ventilation, exhaust, air circulation, and process cooling applications in a wide range of industrial and commercial environments.
