Fixed Return Air Louver with 45° Fixed Tilt Blades and High-Strength Aluminum for Customizable Shape
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.
Applicable Locations
The Fixed Return Air Louver is widely used in commercial building HVAC return air systems. Typical applications include:
| Facility Type | Specific Application |
|---|---|
| Hotels | Guest corridor return air, 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 |
| Supermarkets | Store return air systems |
| Factories | Industrial ventilation return air systems |
| Apartments/Villas | Residential central AC return air systems |
Product Advantages
1. 45° Fixed Tilt Blades – Uniform Air Distribution
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Optimized blade angle for stable, uniform return airflow
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Low resistance, low noise – improves HVAC energy efficiency
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Large blade (33mm) and small blade (26mm) options available
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. Robust Construction – Long-Term Stability
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Well-designed integral structure – high strength, resistant to deformation
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Suitable for long-term continuous operation in HVAC systems
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Available in fixed or hinged configurations (hinged type allows easy filter cleaning)
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 – Strong Compatibility
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Compatible with various square/rectangular duct systems
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Flexible installation methods to suit different building structures
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Fixed Return Air Louver (Single Layer Fixed Return Air Grille) |
| Model | WG |
| Function | HVAC terminal return air / air circulation |
| 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 |
| Brand | GUWEN |
Installation & Maintenance Instructions
| Item | Description |
|---|---|
| Installation | Flush mount, flange connection or clip-in fastening to air duct |
| Maintenance | Fixed type: regular blade surface cleaning; Hinged type: open panel to clean filter screen |
| Maintenance Interval | Recommended every 3-6 months |
| Compatible Duct | Square / Rectangular duct systems |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.