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VML5501 Ventilation Louver
• Material: Extruded aluminum 6063-T5 / 6063-T6
• Blade Type: Single Bank, Drainable
• Finish: Anodized / Powder Coated/PVDF
• Certification: BSRIA
• Angle: 30°
• Louver Depth: 155 mm
• Blade Thickness: 1.5 mm
• Blade Orientation: Horizontal / Vertical
Product Overview
The VML5501 ventilation louvre from Togen is a single-blade aluminum louver engineered for equipment room exhaust and natural ventilation needs. Offering Class B rain penetration protection at 82.7% efficiency under 2.0 m³/s airflow, it strikes a perfect balance between aerodynamic performance and architectural aesthetics. Its streamlined single bank design supports both functional airflow and visual consistency for external wall applications.
Air Performance Data
| Content | Coefficient | Airflow m3/s |
Pressure Pa |
Class |
| Intake Ce | 0.281 | 2.1 | 34 | 3 |
| Exhaust Cd | 0.338 | 2.2 | 25 | 2 |
Wind Driven Rain Data
| Wind Speed: 13m/s Rainfall: 75mm/h | ||||||||
| Core Velocity m/s | 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
| Effectiveness % | 93.0 | 89.7 | 86.7 | 84.5 | 82.7 | 77.6 | 45.5 | 31.0 |
| Class | C | C | C | C | C | D | D | D |
Key Features
• Single bank blade structure for low-pressure airflow and efficient ventilation• Tested rain resistance: 82.7% at 2.0 m³/s (Class B)
• Economical aluminum louver solution for exhaust and intake applications
• Suitable for aluminum louver windows, ventilation grilles, and equipment rooms
• Clean flat appearance for façade integration
Applications
• Mechanical rooms and equipment ventilation• Aluminum louver windows for passive airflow
• Parking garage ventilation walls
• Utility building sidewall vents
• Air exhaust and intake openings with moderate rain exposure
Technical Resources
📄 Download: Togen VML5501 Technical Datasheet (PDF)📐 Request: CAD Drawings & Installation Details
🧱 Explore: Material Specs & Structural Info
FAQ
1. Q: What is the rain resistance class of VML5501?
A: VML5501 achieves Class B rain resistance performance at 2.0 m³/s airflow.
2. Q: Is VML5501 suitable for decorative applications?
A: Yes. The clean front view and hidden blade depth allow for aesthetic integration.
3. Q: Can this louver be used for air intake?
A: Absolutely. While optimized for exhaust, it can be configured for intake as well.
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