4-72 Centrifugal Ventilation Fan
General-purpose centrifugal fan for factory ventilation, workshop exhaust, equipment-room air supply and ordinary industrial air-handling systems.
Suitable for clean air or non-corrosive gas under normal-temperature ventilation conditions. Model selection is based on airflow, total pressure, speed, drive arrangement, outlet direction and installation space.
General-Purpose Centrifugal Fan for Ordinary Industrial Ventilation
The 4-72 centrifugal ventilation fan is designed for air supply, exhaust ventilation, workshop air exchange, equipment-room heat removal and general factory ventilation. It is primarily selected for conveying ordinary air or non-corrosive gas where moderate pressure and stable airflow are required.
The final model should not be chosen by fan number alone. Required airflow, total pressure, operating temperature, medium condition, drive type, rotation direction, outlet angle and available installation space should be confirmed before quotation.
Where the 4-72 Fan Fits - and Where It Does Not
A-Type, B-Type, C-Type and D-Type Configurations
The 4-72 series uses different drive arrangements according to fan size, speed and installation requirements. Final configuration should be confirmed together with the duty point and project layout.
4-72 Performance Data and Model Coverage
The series covers multiple sizes and drive arrangements. Use the overview below for preliminary screening, then open the detailed technical groups as required.
| Drive Type | Catalog Sizes | Typical Arrangement | Selection Note |
|---|---|---|---|
| A-Type | No.2.8A–6A | Compact direct drive | Compact direct-drive range; confirm duty point, speed and motor before order. |
| C-Type | No.6C / 8C / 10C / 12C | Belt drive | Use where a separate fan shaft and belt-drive arrangement suits the project layout. |
| D-Type | No.6D / 8D / 10D / 12D | Separate shaft / drive arrangement | Separate shaft / drive configuration; final bearing and transmission arrangement follows model selection. |
| B-Type | No.16B / 20B | Large-size belt-drive configuration | Large-size belt-drive configuration; confirm motor, pulley, foundation and GA drawing for the selected model. |
A-Type Detailed Performance Data - No.2.8A to No.6A
Reference rows for preliminary model screening. Final selection should be checked against the required airflow, total pressure and actual system resistance.
| Model | Speed r/min |
Total Pressure Pa |
Airflow m³/h |
Motor Power kW |
Motor Model |
|---|---|---|---|---|---|
| 2.8A | 2900 | 606–994 | 1131–2356 | 1.5 | Y90S-2 |
| 3.2A | 2900 | 792–1300 | 1688–3517 | 2.2 | Y90L-2 |
| 3.2A | 1450 | 198–324 | 844–1758 | 1.1 | Y90S-4 |
| 3.6A | 2900 | 989–1758 | 2664–5268 | 3 | Y100L-2 |
| 3.6A | 1450 | 247–393 | 1332–2634 | 1.1 | Y90S-4 |
| 4A | 2900 | 1320–2014 | 4012–7419 | 5.5 | Y132S1-2 |
| 4A | 1450 | 329–501 | 2006–3709 | 1.1 | Y90S-4 |
| 5A | 2900 | 2019–3187 | 7728–15455 | 15 | Y160M2-2 |
| 5A | 1450 | 502–790 | 3864–7728 | 2.2 | Y100L1-4 |
| 6A | 1450 | 724–1139 | 6677–13353 | 4 | Y112M-4 |
| 6A | 960 | 317–498 | 4420–8841 | 1.5 | Y100L-6 |
C-Type Catalog Coverage - No.6C / 8C / 10C / 12C
D-Type Catalog Coverage - No.6D / 8D / 10D / 12D
B-Type Large-Size Coverage - No.16B / 20B
Reference Outline & Installation Dimensions
The drawing below is the catalog reference for 4-72-12 / B4-72-12 No.2.8A–6A. Final overall dimensions depend on fan size, motor, drive arrangement and discharge orientation.
Drawing Scope and Dimension Notes
What Changes the Final Overall Dimensions?
Information Needed for Correct Model Selection
Airflow & Pressure
Provide the design airflow in m³/h plus total pressure, static pressure or calculated duct-system resistance.
Medium, Temperature & Altitude
Confirm clean air, dusty air, hot air or process gas, together with operating temperature and site altitude.
Direction & Electrical
Confirm rotation, discharge angle, inlet orientation, installation space, voltage, frequency and motor protection requirements.
Typical Industrial Ventilation Applications
Air Supply & Warehouse Circulation
Fresh-air supply, auxiliary air delivery and circulation support for storage areas and large enclosed spaces.
Equipment Rooms & Process Air Handling
Heat-removal support for machinery rooms, utility areas and general production equipment or duct systems.
Available Configuration Options
| Item | Available Option | Selection Purpose |
|---|---|---|
| Drive Type | A-type, B-type, C-type or D-type | Match capacity, maintenance preference and installation layout |
| Motor | Voltage, frequency, protection level and brand options | Match local power supply and project specification |
| Rotation / Outlet | Clockwise or counter-clockwise rotation and customized discharge angle | Fit duct routing and available installation space |
| Base Frame | Standard or project-specific steel base | Support installation accuracy and site assembly |
| Accessories | Inlet damper, flexible connector, vibration isolator and guard | Improve system integration and operational safety |
4-72 Centrifugal Ventilation Fan FAQ
What is the 4-72 centrifugal fan mainly used for?
It is mainly used for factory ventilation, workshop exhaust, air supply, equipment-room ventilation and ordinary industrial air-handling systems.
Can the 4-72 fan handle dusty air?
For the standard catalog condition, the gas should contain no sticky substances and dust/hard particles should not exceed 150 mg/m³. Abrasive or heavier dust service should be reviewed separately before selection.
How do I choose between A-type, B-type, C-type and D-type?
The choice depends on fan size, speed, motor arrangement, maintenance preference and installation space. Final configuration should be confirmed together with the duty point and project layout.
What information is required for quotation?
Please provide airflow, total pressure, medium, temperature, altitude, voltage, frequency, rotation direction, discharge angle, quantity and any project-specific motor or accessory requirement.
Hot Tags: 4-72 centrifugal ventilation fan, China 4-72 centrifugal ventilation fan manufacturers, suppliers, factory
