EnglishCurrent
德语
阿拉伯语
法语
印尼语
日语
韩语
马来语
葡萄牙语
俄语
西班牙语
泰语
土耳其语
越南语
Cleanroom HVAC and Air Handling Equipment
Circular Inline Duct Fan
A compact mixed-flow fan for round branch ducts, combining an EC motor, smooth polymer casing and quick-release service section in a straight-through package.
- Compact Round-Duct Installation
- Energy-Efficient EC Motor
- Quick-Release Service Section
- Flexible Mounting Orientation
Product Introduction
The circular inline duct fan integrates a mixed-flow impeller and electronically commutated motor inside a smooth molded housing sized for standard spiral duct. Round inlet and outlet spigots preserve a straight air path, while the center fan section can be released from its mounting clips for cleaning or replacement without dismantling the surrounding duct. Its compact body is suited to cleanroom support rooms and ventilation branches where space, sound and simple service access are important.
Key Features
An EC motor accepts variable-speed control and maintains good efficiency at reduced airflow settings.
Tool-light mounting clips allow the central motor and impeller section to separate from the fixed duct spigots.
The balanced motor-impeller assembly can operate horizontally, vertically or at an intermediate installation angle.
Customer Product Concerns
Small circular branches often lack room for a conventional fan cabinet and are difficult to dismantle when the impeller requires cleaning.
A bulky rectangular fan forces extra transitions and consumes limited ceiling-void space.Round spigot connections and a short cylindrical body fit directly between standard circular duct sections.
Removing a fixed inline fan requires cutting or disassembling the connected duct.Quick-release clamps detach the service section while the inlet and outlet collars remain mounted.
A single-speed motor wastes energy when the room is unoccupied or the branch damper is partly closed.The EC motor can reduce speed from a local controller or building-management signal to match the required airflow.
Vibration from a small high-speed fan becomes audible through lightweight spiral duct.A balanced mixed-flow wheel, resilient mounting feet and optional flexible couplings limit structure-borne noise.
Typical Applications
Cleanroom gowning-room supply and extract branchesLaboratory support-room ventilationCeiling-void duct boosting for modular cleanroomsEquipment enclosure heat removalSmall pharmaceutical storage and wash rooms
Technical Parameters
Typical molded construction ranges for a compact circular inline duct fan with an EC motor are listed below.
| Core Material | Flame-retardant polypropylene or ABS split housing with a balanced polymer mixed-flow impeller and EC motor |
|---|---|
| Panel Thickness | 3.0-6.0 mm molded polymer housing wall thickness |
| Effective Width | 100-400 mm nominal round duct connection diameter |
| Maximum Length | Up to 650 mm overall fan body length including duct spigots |
| Steel Facing Thickness | 1.0-1.5 mm galvanized steel mounting plate, clamp and support hardware |
| Core Density | Approximately 900-1200 kg/m³ for the molded polypropylene or ABS housing |
| Thermal Conductivity | Approximately 0.15-0.25 W/(m·K) for the engineering-polymer casing material |
| Surface Finish | Smooth white molded polymer with a blue service band and corrosion-resistant metal clips |
| Joint Type | Circular slip-fit spigots with clamp-release split casing, gasketed center section and screw-fixed mounting base |
| Customization | Available based on the intended application and operating environment. |
Available Options
Potentiometer, 0-10 V or constant-pressure EC controlInsulated mounting box for lower breakout noiseBackdraft damper and washable inlet filterFlexible couplings and suspension mounting kit
Planning a Circular Inline Duct Fan specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
