Weather Louver
REF-WL
REF Series Weather Louvers are designed for durable and efficient outside air intake, mounted on exterior walls. Featuring 45° fixed rainproof blades to prevent water ingress, they ensure optimal airflow for commercial, industrial, and HVAC systems. Available in coated aluminum or SS304 stainless steel, with customizable sizes and finishes.
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Rerfia Series Weather Louvers
Complete range of high-performance outside air louvers for commercial and industrial ventilation systems
Weather Louver Overview
The REF series weather louver is designed for durable and efficient outside air intake, commonly mounted on exterior walls. Its rainproof blade design fixed at 45° prevents water ingress, making it an ideal wall louver for commercial, industrial, and HVAC applications. Engineered for maximum performance and minimal maintenance, these louvers ensure optimal airflow while protecting ventilation systems from weather elements.
45° Fixed
Rainproof Blade Design
Multiple
Mounting Options
SS304 / Coated
Material Options
Custom
Sizes & Colors
Key Features & Benefits
Rainproof Design: 45° fixed blades prevent rain entry while allowing optimal airflow with minimal pressure drop.
Durable Materials: Available in powder-coated aluminum (RAL9016, RAL9010) or SS304 stainless steel for corrosion resistance.
Flexible Mounting: Standard screw mounting with optional concealed clip fixing for clean aesthetics.
System Integration: Compatible with dampers and plenum boxes for complete outside air louversolutions.
Custom Sizes & Colors: Wide range of standard sizes and custom color finishes available to match architectural requirements.
Low Maintenance: Simple design with no moving parts ensures long service life with minimal maintenance requirements.
Weather Resistance: Designed to withstand harsh environmental conditions including heavy rain, snow, and wind.
Aesthetic Design: Clean, modern appearance suitable for both commercial and residential applications.
REF-A Series - Rectangular Weather Louver
REF-A Rectangular Wall Louver
Standard rectangular outside air louver for fresh air intake
The REF-A series features 45° fixed rainproof blades, multiple mounting options, and customizable finishes. This rectangular wall louver is ideal for commercial and industrial ventilation systems, providing reliable performance as an outside air louver for various applications.
Air Flow (m³/h) at V=1m/s | Additional sizes up to 1000mm available
REF-D Series - Square Outside Air Louver
REF-D Square Outside Air Louver
Square profile weather louver with compact frame design
The REF-D series features a square profile design with compact frame construction. This outside air louver is ideal for modular fresh air intake systems and modern architectural applications as a wall louver.
Air Flow at V=1m/s | Square design for modern architectural applications
REF-R Series - Round Weather Louver
REF-R Round Weather Louver
Circular weather louver for round duct connections
The REF-R series is designed for round duct connections and specialized ventilation applications. This circular weather louver provides efficient outside air intake for systems requiring cylindrical ductwork.
Air Flow at V=1m/s | Round profile for specific ductwork requirements
REF-B Series - Compact Wall Louver
REF-B Compact Wall Louver
Small to medium wall louver for lower airflow requirements
The REF-B series is a compact wall louver designed for smaller airflow requirements and space-constrained installations. Ideal for residential and light commercial applications as an outside air louver.
Air Flow at V=1m/s | Ideal for residential and light commercial applications
REF-C Series - Compact Wall Louver
REF-C Compact Wall Louver
Alternative compact wall louver design
The REF-C series is an alternative compact wall louver design with similar specifications to the REF-B series. Suitable for various applications where a streamlined outside air louver is required.
Air Flow at V=1m/s | Alternative design with similar performance characteristics
Additional Series - Quick Specs
REF-D Series
Square outside air louver with compact frame. Example: 300x300 mm delivers 205 m³/h at 1 m/s. Ideal for modular wall intake.
REF-R Series
Round weather louver for cylindrical duct connections. Sizes from 150 mm (40 m³/h) to 400 mm (349 m³/h).
REF-B / REF-C Series
Small to medium wall louvers for lower airflow requirements. Starting from 75 mm size (22 m³/h).
Pressure Drop Reference (Intake)
Pressure drop values for REF series weather louvers at different air velocities (Pa). Essential for system design calculations and fan selection. These values are based on standard air density (1.2 kg/m³) at 20°C.
Pressure drop values for system design calculations at standard air conditions
Installation & Finishing
Mounting
Screw Fixing (Standard)
Concealed clip fixing optional for clean facade appearance. All hardware included.
Finishing
Powder Coating / Anodized / SS304
Standard colors: RAL9016, RAL9010. Custom colors available upon request.
Accessories
Damper & Plenum Box
Available for complete outside air louver system integration. Bird screens optional.
Typical Applications
Commercial HVAC Systems
Industrial Ventilation
Facade Fresh Air Intake
Car Park & Warehouse Ventilation
Residential Ventilation
Laboratory & Clean Room
Hospital & Healthcare
Educational Facilities
Ourweather louver is engineered for durability and performance in demanding environments, providing reliable rain protection and optimized airflow as a critical wall louver component in various ventilation systems.
Technical Specifications
Blade Design
45° Fixed Rainproof
Prevents rain ingress while maintaining optimal airflow
Mounting Options
Screw or Concealed Clip
Flexible installation for various wall types and thicknesses
Finishing
Powder Coated / Anodized / SS304
RAL9016, RAL9010 standard, custom colors available
Temperature Range
-30°C to +80°C
Suitable for most climate conditions
Wind Load
Up to 1500 Pa
Designed for high wind conditions
Standards
ISO 9001 Certified
Manufactured under quality management system
Important Notes
Design & Construction: All REF series weather louvers are engineered for durability and performance in demanding environments.
Customization: Custom colors, sizes and materials (including SS304 stainless steel) available for project-specific requirements.
Specifications: All technical data measured under standard conditions. Specifications subject to change without notice.
Customization: Custom colors, sizes and materials (including SS304 stainless steel) available for project-specific requirements.
Specifications: All technical data measured under standard conditions. Specifications subject to change without notice.
For more questions please
contact us
+86 13450754068
sharon.pan@refria.com
1112 Tianji International Building , No.5 Renchang Road , Beijiao Town , Shunde District , Foshan City , Guangdong Province , China
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