Square Ceiling Step Down Diffuser

Model No. : ACD4SD

Specification:
Extruded aluminium square ceiling step down diffuser with four way throw, and stamped aluminium core assembled in incremental steps which is spring loaded and removable. Different construction available for flush type and tegular ceilings. Collar damper available as accessory for supply air. Step Down is designed for high cfm requirements.

DESCRIPTION

  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Diffusers shall be coned type and stepped down incrementally, with each cone manufactured by extruded aluminium louvered profiles or one piece die formed aluminium sheet construction – arranged in concentric cones to deflect air equally in four directions.
  • The cones are arranged in incremental steps facing downwards to maximize the volume (cfm) of airflow while maintaining the flow directions.
  • Louvered type core is fixed to the frame with aluminium pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation, maintenance and damper adjustment.
  • Damper is fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.
  • Opposed blade damper is lever operated from the face opening of the diffuser after removing the internal core.
  • Damper blades are separated from its frame by nylon bushes.
  • Discharge air equally in four horizontal directions.
  • Suitable for flush mounting in lay in type ceiling.

Square Ceiling Step Down Diffuser Manufacturer in India | Aluminium HVAC Ceiling Diffuser

Our Square Ceiling Step Down Diffuser is a high-performance air distribution solution designed for efficient and uniform airflow in modern HVAC systems. As a trusted Square Ceiling Step Down Diffuser manufacturer in India, we supply premium quality aluminium ceiling diffusers that deliver superior air distribution, durability, and long-term performance for commercial, industrial, and residential projects across India.

Manufactured using high-grade extruded aluminium profiles and die-formed aluminium sheet construction, the Square Ceiling Step Down Diffuser in India offers excellent corrosion resistance, structural strength, and long service life. The advanced stepped cone design enhances airflow performance while maintaining a clean and professional ceiling appearance.

Advanced Step Down Design for Maximum Airflow

The Step Down Ceiling Diffuser features a unique coned structure with multiple concentric cones arranged in incremental downward steps. This stepped configuration helps maximize the volume of airflow (CFM) while maintaining uniform air distribution in all directions.

The Square Ceiling Step Down Diffuser in India is designed to discharge air equally in four horizontal directions, ensuring balanced airflow throughout the room. The stepped cone arrangement allows air to spread efficiently without creating drafts or uneven cooling zones.

This makes it an ideal choice for HVAC systems installed in large spaces where high airflow capacity and uniform air distribution are required.

Efficient Air Distribution for HVAC Systems

The Aluminium Step Down Ceiling Diffuser ensures optimal air circulation by directing conditioned air evenly across the space. This improves indoor air quality and maintains consistent temperature levels in air-conditioned environments.

The diffuser is widely used in commercial buildings, office spaces, hospitals, hotels, shopping malls, and institutional facilities across India where efficient ventilation is essential.

Removable Core for Easy Maintenance

The Square Ceiling Step Down Diffuser is equipped with a removable louvered core that is fixed using aluminium pins loaded with steel springs. This design allows the core to be easily removed or replaced when needed.

The removable core provides flexibility for installation, cleaning, maintenance, and damper adjustment, allowing HVAC technicians to access internal components without removing the entire diffuser from the ceiling.

This reduces maintenance time and ensures smooth operation of the HVAC system.

Opposed Blade Damper for Airflow Control

The Step Down Ceiling Diffuser with Opposed Blade Damper allows precise control over airflow volume. The damper is rigidly fixed to the frame using aluminium rivets, ensuring durability and stability.

The damper blades are separated from the frame using nylon bushes, which provide smooth and reliable operation. The damper can be lever operated from the face opening after removing the internal core, making airflow adjustment easy and efficient.

This feature helps HVAC engineers maintain proper air balancing and improve the performance of ventilation systems across India.

Durable Aluminium Construction

Our Aluminium Square Ceiling Step Down Diffuser in India is constructed using corrosion-resistant aluminium materials, ensuring long-term durability and resistance to environmental conditions. The strong yet lightweight structure allows easy installation while maintaining structural integrity.

The high-quality finish enhances the aesthetic appeal of the diffuser, allowing it to blend seamlessly with modern ceiling interiors.

Suitable for False Ceiling Installation

The Square Ceiling Step Down Diffuser is designed for flush mounting in lay-in type ceiling systems, making it suitable for suspended or false ceiling installations commonly used in commercial buildings.

This ensures a neat and professional appearance while maintaining efficient airflow distribution.

Applications Across India

Our Square Ceiling Step Down Diffusers are widely used in HVAC installations across India, including:

  • Commercial office buildings

  • IT parks and corporate spaces

  • Hospitals and healthcare facilities

  • Hotels and hospitality projects

  • Shopping malls and retail outlets

  • Airports and metro stations

  • Educational institutions

  • Residential apartments

These environments require efficient air distribution systems to maintain comfortable indoor conditions.

Custom Sizes Available for Projects

To meet diverse HVAC installation requirements across India, we offer custom sizes for Square Ceiling Step Down Diffusers. This allows seamless integration into various ceiling layouts and ventilation system designs.

Why Choose Our Square Ceiling Step Down Diffuser in India?

  • Trusted Square Ceiling Step Down Diffuser Manufacturer in India

  • High-quality extruded aluminium construction

  • Stepped cone design for maximum airflow (CFM)

  • Uniform four way air distribution

  • Removable core for easy maintenance

  • Integrated opposed blade damper for airflow control

  • Suitable for lay-in type false ceiling systems

  • Custom sizes available for HVAC projects

If you are looking for a reliable Square Ceiling Step Down Diffuser supplier in India, Aluminium HVAC ceiling diffuser manufacturer, or high airflow ceiling diffuser, our products deliver superior performance, durability, and efficient ventilation.

We proudly supply HVAC ceiling diffusers across India, supporting contractors, builders, architects, and HVAC consultants with high-quality air distribution solutions designed for modern air conditioning and ventilation systems.

PRODUCT ORDER CHECKLIST

MODEL OUTER SIZE NECK SIZE FRAME CEILING ACCESSORIES COLOUR
ACD4SD Step Down 595×595 450×450 Extruded Plain / Tegular Collar Damper (D) Powder Coated Mill Finish
450×450 375×375
375×375 300×300

*Required: Neck Size, Quantity and RAL Colour Code along with above specifications.

FIXING DETAILS

Option A: Screw on front side of flange

Option B: Concealed screw on inside surface of frame.

Option C: Placement of diffuser directly on the false ceiling frame.