CALM S18-150
The Colt CALM S18-150 is a high-performance acoustic louvre designed to balance noise reduction with maximum ventilation. With a 150mm straight blade profile, it provides the highest airflow capacity in the CALM range, making it ideal for plant rooms, cooling towers, and substations. Tested to BS EN ISO 10140-2:2021, it combines robust acoustic performance with excellent aerodynamic efficiency (Cv 0.200). Its modular, durable design ensures flexibility, safe installation, and long service life.
- 150mm thick straight blade profile delivering maximum ventilation within the CALM range
- Tested to BS EN ISO 10140-2:2021 for certified acoustic attenuation
- Modular system allows for walls or runs of virtually any width or height
- Easy two-person installation with pre-punched fixing points
- Panel joining kits enable longer spans with reduced need for intermediate supports
- Compatible with COLT Universal Louvre (UL) systems for integrated weather protection and visual consistency
- Available with optional bird guard, insect mesh or fly screens to suit application needs
