Air outlet series

Product Introduction:

  The Fixed Return Air Louver (Single Layer Fixed Return Air Grille) is a high-efficiency return air device specifically designed for commercial building HVAC return air systems. Manufactured from high-strength extruded aluminum profiles with blades fixed at a 45° tilt, it offers excellent corrosion resistance and structural rigidity. This product returns indoor air to the air conditioning system for cooling or heating treatment before re-delivering it to the room, creating a complete air circulation loop and ensuring system efficiency and indoor air quality.

Technical Specifications:

Product Type:

Strip-shaped straight diffuser     Used for indoor and circular supply and return air distribution; various shapes can be made according to decoration requirements; a black aluminum mesh can be installed behind the vent to conceal the inside; multiple vents can be connected in parallel with a splicing plate at the joint.
Egg-shaped air vent   Simple structure, low pressure loss; used for ceiling air supply and return. Available in two sizes with egg-shaped grids; compatible with ventilators.
Fixed oblique blade air outlet   Can be used in unidirectional (A) or bidirectional (B) oblique air supply mode; Can be made into various shapes according to decoration requirements; Can be used as a return air outlet; Can be equipped with a multi-bladed opposing regulating valve; Can also be equipped with a filter screen.
Waterproof louvered air vents   The louvers are designed with a special shape to prevent rain from splashing into the interior. They are typically installed on exterior walls as fresh air vents. An aluminum mesh can be added behind the vent to prevent birds or insects from entering.

For more styles and models, please contact us and we will provide you with the catalog​!

Applicable Locations:

Product Advantages:

1. 45° Fixed Tilt Blades – Uniform Air Distribution

• Optimized blade angle for stable, uniform return airflow

• Low resistance, low noise – improves HVAC energy efficiency

• Large blade (33mm) and small blade (26mm) options available

2. High-Strength Aluminum – Corrosion Resistant & Durable

• Frame and blades made from high-quality extruded aluminum profiles

• Surface treated with anodizing or electrostatic coating

• Suitable for humid, dusty, and demanding environments

3. Robust Construction – Long-Term Stability

• Well-designed integral structure – high strength, resistant to deformation

• Suitable for long-term continuous operation in HVAC systems

• Available in fixed or hinged configurations (hinged type allows easy filter cleaning)

4. Multiple Specifications – Flexible Customization

• Face size, shape, and blade spacing all customizable

• Thickness options: 0.6 / 0.7 / 0.9 / 1.0 mm (customizable)

• Material options: Aluminum / ABS Plastic Steel

5. Easy Installation – Strong Compatibility

• Compatible with various square/rectangular duct systems

• Flexible installation methods to suit different building structures

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