Air distribution products

Slot Diffusers

COMPANY

Dynacraft

type

Air Distribution Product

Aluminium Slot Diffusers

Aluminium slot diffusers are a modern, aesthetically pleasing alternative to traditional grilles and registers for distributing conditioned air. Their linear, low-profile design allows them to blend seamlessly with architectural ceilings and walls, making them a popular choice for offices, retail spaces, and other commercial buildings where visual appeal is important.

Salient Features

Aesthetic Appeal: The primary feature is their sleek, minimalist design. The continuous, narrow slots are far less obtrusive than typical ceiling diffusers.

High Air Induction: They're highly effective at mixing the supply air with the room air. This rapid induction minimizes cold drafts and ensures even temperature distribution.
Adjustable Air Pattern: The core of a slot diffuser contains adjustable pattern controllers (or deflector blades). These can be manually or mechanically adjusted to direct the airflow in a 1-way, 2-way, or even vertical pattern. This flexibility makes them suitable for a wide range of applications and ceiling heights.
Concealed Fastening: They typically feature a concealed fixing system, which further enhances their clean, uninterrupted look. The diffuser's internal components hide the screws or clips that secure it to the ceiling.
High Airflow Capacity: Despite their narrow appearance, slot diffusers can handle significant airflow volumes, making them suitable for both cooling and heating applications.

Modular Construction: The diffusers are often supplied in modular sections that can be joined together to create a continuous, linear run of any length.

Aesthetic Appeal: The primary feature is their sleek, minimalist design. The continuous, narrow slots are far less obtrusive than typical ceiling diffusers.

High Air Induction: They're highly effective at mixing the supply air with the room air. This rapid induction minimizes cold drafts and ensures even temperature distribution.
Adjustable Air Pattern: The core of a slot diffuser contains adjustable pattern controllers (or deflector blades). These can be manually or mechanically adjusted to direct the airflow in a 1-way, 2-way, or even vertical pattern. This flexibility makes them suitable for a wide range of applications and ceiling heights.
Concealed Fastening: They typically feature a concealed fixing system, which further enhances their clean, uninterrupted look. The diffuser's internal components hide the screws or clips that secure it to the ceiling.
High Airflow Capacity: Despite their narrow appearance, slot diffusers can handle significant airflow volumes, making them suitable for both cooling and heating applications.

Modular Construction: The diffusers are often supplied in modular sections that can be joined together to create a continuous, linear run of any length.

Construction Details

The construction of an aluminium slot diffuser generally includes the following components:

Extruded Aluminium Body: The main frame or channel of the diffuser is made from extruded aluminium. This material is lightweight, corrosion-resistant, and can be easily shaped into the required profile.
Airfoil Pattern Controllers: Inside the slot, you'll find aerodynamically designed plastic or metal blades. These controllers can be rotated to adjust the direction of the airflow. A rod or gear mechanism connects these blades, allowing for simultaneous adjustment.
Plenum Box: This is the sheet metal box that connects the flexible ductwork from the HVAC unit to the diffuser. It's typically insulated to prevent condensation and reduce noise. The plenum can be a top-entry or side-entry type depending on the installation requirements.
End Caps & Couplers: For long runs, end caps are used to terminate the diffuser, and couplers are used to join multiple sections together, ensuring a seamless appearance.
Powder-Coated Finish: The exposed aluminium parts are usually finished with a durable powder coating. The most common color is white (RAL 9010 or 9016), but custom colors are available to match any ceiling or wall color.

The construction of an aluminium slot diffuser generally includes the following components:

Extruded Aluminium Body: The main frame or channel of the diffuser is made from extruded aluminium. This material is lightweight, corrosion-resistant, and can be easily shaped into the required profile.
Airfoil Pattern Controllers: Inside the slot, you'll find aerodynamically designed plastic or metal blades. These controllers can be rotated to adjust the direction of the airflow. A rod or gear mechanism connects these blades, allowing for simultaneous adjustment.
Plenum Box: This is the sheet metal box that connects the flexible ductwork from the HVAC unit to the diffuser. It's typically insulated to prevent condensation and reduce noise. The plenum can be a top-entry or side-entry type depending on the installation requirements.
End Caps & Couplers: For long runs, end caps are used to terminate the diffuser, and couplers are used to join multiple sections together, ensuring a seamless appearance.
Powder-Coated Finish: The exposed aluminium parts are usually finished with a durable powder coating. The most common color is white (RAL 9010 or 9016), but custom colors are available to match any ceiling or wall color.

Product Offerings

dynacraft's slot diffuser range

Aluminium slot diffusers come in a variety of configurations to suit different needs:

Number of Slots: They are available with 1, 2, 3, or more slots. The number of slots determines the overall width and airflow capacity of the diffuser. A 1-slot diffuser is the most discreet, while a 3-slot version can handle a higher volume of air.

Frame Profiles: They come in various frame styles, including a flanged or "lay-in" style for T-bar ceilings and a frameless, "plaster-in" style for flush mounting in drywall ceilings. The plaster-in type offers the cleanest look as the frame is completely concealed
Airflow Direction:
- Single-way: Air blows out of one side of the diffuser
- Two-way: Air blows out of both sides
- Adjustable: The most common type, allowing the user to set the pattern
Accessories:
- Opposed Blade Dampers (OBDs): Used within the plenum box to fine-tune the airflow volume for balancing the HVAC system
- End Caps and Corner Sections: For creating seamless installations around corners or at the end of a run
- Hit and Miss Dampers: These are a type of volume control damper often used in continuous slot diffusers. They are manually operated from the face of the diffuser and consist of sliding plates that can be moved to increase or decrease the open area, thereby regulating the air volume

Frame Profiles: They come in various frame styles, including a flanged or "lay-in" style for T-bar ceilings and a frameless, "plaster-in" style for flush mounting in drywall ceilings. The plaster-in type offers the cleanest look as the frame is completely concealed

Airflow Direction:

Single-way: Air blows out of one side of the diffuser

Two-way: Air blows out of both sides

Adjustable: The most common type, allowing the user to set the pattern

Accessories:

Opposed Blade Dampers (OBDs): Used within the plenum box to fine-tune the airflow volume for balancing the HVAC system

End Caps and Corner Sections: For creating seamless installations around corners or at the end of a run

Hit and Miss Dampers: These are a type of volume control damper often used in continuous slot diffusers. They are manually operated from the face of the diffuser and consist of sliding plates that can be moved to increase or decrease the open area, thereby regulating the air volume

Frame Profiles: They come in various frame styles, including a flanged or “lay-in” style for T-bar ceilings and a frameless, “plaster-in” style for flush mounting in drywall ceilings. The plaster-in type offers the cleanest look as the frame is completely concealed
Airflow Direction:
- Single-way: Air blows out of one side of the diffuser
- Two-way: Air blows out of both sides
- Adjustable: The most common type, allowing the user to set the pattern
Accessories:
- Opposed Blade Dampers (OBDs): Used within the plenum box to fine-tune the airflow volume for balancing the HVAC system
- End Caps and Corner Sections: For creating seamless installations around corners or at the end of a run
- Hit and Miss Dampers: These are a type of volume control damper often used in continuous slot diffusers. They are manually operated from the face of the diffuser and consist of sliding plates that can be moved to increase or decrease the open area, thereby regulating the air volume