Silencer

Rectangular Sound Attenuators for Ventilation Systems

Rectangular sound attenuators are designed for effective noise reduction in ventilation and air conditioning systems, including heat recovery units. They are most commonly installed between the fan and the supply or exhaust air duct, significantly reducing the noise level along the airflow path. Construction and Materials

Each sound attenuator consists of:

• A galvanized steel casing – durable, corrosion-resistant, and suitable for various installation environments
• Internal sound-absorbing baffles, mounted inside the casing and engineered to absorb acoustic energy generated by the airflow
• Baffle ends – available in round or triangular shapes, depending on project specifications and customer requirements

Sound Insulation Material

The sound-absorbing baffles are filled exclusively with high-quality Isover KVL 50 mm acoustic wool, which ensures excellent noise attenuation performance.

• The wool is covered with a wear-resistant fabric that protects the insulation material from airflow erosion
• The inner surface is lined with black fiberglass, suitable for air velocity up to 20 m/s
• Temperature resistance: up to +250 °C
  
  

Customizable Parameters:

• Baffle thickness
• Spacing and arrangement
• Baffle shape (standard or triangular)

All elements can be tailored to match the specific acoustic and technical requirements of the project.

Applications:

• Ventilation and heat recovery systems
• Commercial, industrial, and public buildings
• Technical rooms and equipment areas requiring mechanical noise reduction
• Suitable for both horizontal and vertical installation

By choosing sound attenuators with Isover KVL acoustic insulation, you ensure maximum sound absorption and system efficiency – the perfect solution for a quieter and more comfortable environment.