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Cleanroom Air Distribution Systems
Swirl Ceiling Air Diffuser
A square ceiling diffuser whose tangential fixed blades generate a high-induction radial swirl for rapid mixing of filtered supply air.
- High-Induction Swirl Pattern
- Fixed Tangential Blades
- 595 mm Ceiling Module
- Removable Cleanable Face
Product Introduction
The swirl ceiling air diffuser turns supply air through a ring of tangential blade openings, producing a rotating horizontal jet beneath the ceiling. The swirl rapidly entrains room air, reducing temperature difference and velocity before the mixed stream reaches working height. Its square steel face fits a standard 600 mm ceiling grid, while the center panel releases for cleaning and access to the balancing plenum. Fixed blade geometry preserves the selected pattern after repeated maintenance and avoids accidental nozzle movement.
Key Features
The 595 × 595 mm face integrates directly with common modular cleanroom ceiling grids.
Fixed formed blades retain their discharge geometry without field readjustment after cleaning.
A gasketed balancing plenum can combine airflow measurement, volume adjustment and sound attenuation.
Customer Product Concerns
A swirl diffuser must preserve rapid mixing at reduced airflow while avoiding noise, pattern distortion and maintenance-related blade changes.
Cool supply air falls into the occupied zone before it mixes with room air.Tangential jets create strong induction and hold the mixed stream near the ceiling during its initial spread.
Adjustable blades are returned to inconsistent positions after cleaning.A fixed swirl element reproduces the designed discharge pattern whenever the face is reinstalled.
An undersized inlet produces audible turbulence behind the face panel.Selectable 160–315 mm spigots and an equalizing plenum reduce velocity before the swirl element.
The central fastener becomes a dirt trap on the visible face.A flush covered fixing and smooth powder coating leave a simple wipe-clean room surface.
Typical Applications
Mixed-flow clean production roomsHospital support and preparation areasLaboratory work roomsPharmaceutical packaging spacesCleanroom change and circulation zones
Technical Parameters
Representative dimensions and materials for a modular square swirl diffuser are shown below.
| Core Material | Powder-coated steel face with galvanized fixed swirl blade assembly and galvanized inlet plenum |
|---|---|
| Panel Thickness | 0.8–1.2 mm front panel and formed swirl blades |
| Effective Width | 595 mm standard modular ceiling face |
| Maximum Length | 595 mm standard face length |
| Steel Facing Thickness | 0.8–1.2 mm powder-coated face and galvanized blade sheet |
| Core Density | Approximately 7850 kg/m³ for the steel face and swirl element |
| Thermal Conductivity | Approximately 45–60 W/(m·K) for the steel face and swirl element |
| Surface Finish | White RAL 9003 or RAL 9010 epoxy-polyester powder coating |
| Joint Type | Removable swirl face on gasketed plenum with Ø160–315 mm sealed round spigot |
| Customization | Available based on the intended application and operating environment. |
Available Options
Integrated balancing and measuring modulePolyester-fibre plenum sound attenuationSupply or extract configurationSpecial powder-coat color and ceiling frame
Planning a Swirl Ceiling Air Diffuser specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
