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AKR 150 acoustic louvre for loggia in a building.
Grilles and louvres

AKR 150

Weatherproof louvre for sound reduction and ventilation

Weighted sound reduction index up to Rw = 11 dB(A)

Weatherproof design allowing efficient ventilation

Suitable for façades, air-handling units, and industrial enclosures

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Description

The AKR 150 acoustic louvre delivers a high-performance solution for ventilation and façade projects where noise reduction and efficient airflow are essential. With a high-density internal acoustic lining and streamlined louvre blade design, it effectively reduces sound while minimising pressure loss. Offering a weighted sound reduction of up to Rw = 11 dB(A), the AKR 150 combines reliability and performance in a compact, customisable system. It is ideal for industrial, commercial and technical installations where comfort and efficiency are key.

Core features
Fundamental properties that define performance.
CE certification
Sound insulation
Fire resistance
Smoke control
Burglary resistance
Bullet resistance
Air and gas tightness
Additional functions
Additional functions that enhance safety and control.
Anti-panic function
Access control
Specialised options
Solutions for highly specific technical environments.
Ventilation
ATEX model
Transformer model
Properties

Constructed from galvanised or stainless steel with a durable coating, the AKR 150 ensures long-lasting performance even in demanding outdoor environments. The acoustic lining remains effective under varying weather conditions, while the louvre blade profile guarantees consistent and efficient airflow. Optional accessories such as bird mesh, filters, or protective grilles allow full customisation to meet specific project requirements. Manufactured in accordance to ISO 9001, the louvre delivers both quality and safety.

Applications

The AKR 150 louvre is ideal for façade openings, ventilation ducts, air handling units, machinery rooms and industrial enclosures. It can be installed vertically or horizontally and integrates seamlessly into walls and ventilation systems. Thanks to its modular design, dimensions and finishes can be fully customised, making it suitable for both new build and renovation projects that demand superior noise reduction, airflow efficiency, and operational convenience.

Downloads and specifications

For complete technical specifications, manuals and certificates, refer to the documents below.
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Answers to common questions

Answers to the most common technical and practical questions.
How do grilles affect airflow in HVAC systems?

Merford louvers are aerodynamically designed to minimize pressure drop and guide airflow efficiently. This ensures ventilation performance remains high even at increased airflow.

Are the grilles resistant to weather conditions such as rain, sun, and frost?

Yes. The frame and blades are made from galvanized or stainless steel with durable coatings, and the internal fill is moisture‑ and weather‑resistant, ensuring consistent performance under varying weather conditions.

What is the difference between AKR and AIR grilles and louvres?

AKR louvers are mainly designed for sound attenuation and ventilation. AIR louvers combine acoustic performance with additional safety features, such as fire resistance and burglary resistance (RC class), making them suitable for critical or secured environments.