Hinged Return Air Grille for HVAC Systems - 45° Fixed Blade / Aluminum
Air outlet series
Product Introduction:
The Hinged Return Air Grille is an easy-maintenance return air louver specifically designed for commercial building HVAC systems. Manufactured from high-strength extruded aluminum profiles with blades fixed at a 45° tilt, it offers excellent corrosion resistance and structural rigidity. Unlike traditional return air grilles, its hinged opening mechanism allows tool-free access, making it easy to regularly clean the filter screen and ensure unobstructed return airflow and indoor air quality.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Name | Hinged Return Air Grille |
| Model | DG-A |
| Function | HVAC terminal return air / exhaust |
| Material | Aluminum / ABS Plastic Steel |
| Blade Size | 15 / 20 / 30 mm |
| Blade Angle | 45° fixed tilt |
| Thickness | 0.6 / 0.7 / 0.9 / 1.0 mm (customizable) |
| Shape | Rectangular (square/circular customizable) |
| Certification | ISO9001 |
Product Type:
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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. |
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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. |
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Fixed oblique blade air outlet Can be used in unidirectional (A) or bidirectional (B) oblique air supply mode; |
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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. |
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For more styles and models, please contact us and we will provide you with the catalog!
Applicable Locations:
The Hinged Return Air Grille is widely used in commercial building HVAC return air and exhaust systems. Typical applications include:
| Facility Type | Specific Application |
|---|---|
| Hotels | Guest corridor return air grilles, banquet hall HVAC return air |
| Office Buildings | Standard floor central AC return air grilles, meeting rooms |
| Hospitals | Wards, clinics, clean area return air systems |
| Schools | Classrooms, libraries, auditorium return air |
| Shopping Malls | Public areas, retail store return air systems |
| Sports Venues | Spectator areas, athlete lounges return air |
| Restaurants | Private dining rooms, lobby return air |
| Apartments/Villas | Residential central AC return air systems |
Core Value: In commercial building HVAC systems, return air grille filter screens require regular cleaning. The hinged design eliminates the need for screw removal, significantly reducing maintenance difficulty and time costs, ensuring long-term efficient system operation.
Product Advantages
1. Hinged Opening Mechanism – Easy Maintenance
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Tool-free operation – open the grille panel by hand
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Allows regular filter screen cleaning to prevent dust buildup
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Firm and airtight closure when closed – no looseness or rattling
2. High-Strength Aluminum – Corrosion Resistant & Durable
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Frame and blades made from high-quality extruded aluminum profiles
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Surface treated with anodizing or electrostatic coating
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Suitable for humid, dusty, and demanding environments
3. 45° Fixed Tilt Blades – Uniform Air Distribution
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Optimized blade angle for even supply/return airflow
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Large blade (33mm) and small blade (26mm) options available
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Available in fixed or hinged configurations
4. Multiple Specifications – Flexible Customization
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Face size, shape, and blade spacing all customizable
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Thickness options: 0.6 / 0.7 / 0.9 / 1.0 mm (customizable)
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Material options: Aluminum / ABS Plastic Steel
5. Easy Installation – No Screws Required
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Clip-in installation directly into the cutout opening
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No complex tools needed – saves installation time
FAQ:
A: Of course. We have a complete catalog of various air vent types. Please contact us and we will provide you with a catalog. You can also send us pictures of the style and quantity you require, and we will check for you.
A: Yes. Please provide us with your factory dimensions and area, and our professional designers will provide you with excellent advice.
A: Yes, we offer OEM and ODM services, and we can also brand your products.
A: Yes, we are both a manufacturer and a trading company. We have our own factory and welcome your inquiries.
Why Choose Us:
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.