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Cleanroom Air Distribution Systems
Linear Slot Air Diffuser
An extruded aluminum one- to six-slot diffuser that forms an adjustable horizontal or vertical plane jet along cleanroom ceilings and walls.
- One to Six Linear Slots
- Adjustable Plane Jet
- Continuous Run Alignment
- Detachable Extruded Core
Product Introduction
The linear slot air diffuser provides a narrow architectural outlet where long, controlled plane jets are preferred to square ceiling terminals. Extruded aluminum frames maintain straight slot edges, and paired internal deflection vanes rotate to direct air along the ceiling, down a wall or into the room. Individual lengths connect with alignment strips to form continuous visual runs. The removable core exposes the balancing module and plenum for cleaning without disturbing the finished ceiling border.
Key Features
Extruded frame sections hold a straight consistent line through individual and continuous-run installations.
One- to six-slot configurations cover different airflow duties without changing the product family appearance.
The complete slot core detaches to reach the plenum, adjustment module and downstream duct surface.
Customer Product Concerns
A continuous slot system must maintain a straight appearance and consistent throw along its full length while preserving access to concealed balancing components.
Adjacent diffuser sections show visible steps or changing slot width.Rigid extrusions and internal alignment strips hold modular sections on one continuous centerline.
Supply air detaches from the ceiling when branch airflow is reduced.Profiled deflection vanes preserve a controlled Coanda jet over a broad operating range.
The plenum damper cannot be reached after the ceiling is closed.A detachable core provides room-side access to the measuring and adjustment module.
A single inlet leaves one end of a long slot under-supplied.Long sections use multiple gasketed spigots and a full-length plenum to equalize pressure.
Typical Applications
Cleanroom perimeter air distributionLong pharmaceutical corridorsLaboratory ceiling and wall supplyClean office glazing zonesContinuous exhaust slots above process support areas
Technical Parameters
Typical construction data for a cleanroom linear slot diffuser and matching plenum are listed below.
| Core Material | Extruded aluminum frame and deflection vanes with galvanized-steel balancing plenum |
|---|---|
| Panel Thickness | 1.2–2.0 mm aluminum extrusion wall thickness |
| Effective Width | 38–250 mm nominal face width for one to six slots |
| Maximum Length | Up to 2000 mm per section with aligned continuous runs |
| Steel Facing Thickness | 0.8–1.0 mm galvanized-steel plenum casing |
| Core Density | Approximately 2700 kg/m³ for the extruded aluminum diffuser components |
| Thermal Conductivity | Approximately 200–210 W/(m·K) for the extruded aluminum diffuser components |
| Surface Finish | White epoxy-polyester powder coat or clear anodized aluminum |
| Joint Type | Alignment-strip section joints with concealed frame fixing and gasketed round plenum spigots |
| Customization | Available based on the intended application and operating environment. |
Available Options
One to six active slotsStandard, narrow or concealed border frameSupply, extract or filtered-extract plenumSingle lengths or aligned continuous runs
Planning a Linear Slot Air Diffuser specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
