CALM S18-300-V
The Colt CALM S18‑300‑V is a high‑performance acoustic louvre designed for environments needing ventilation and noise control. Its 300 mm chevron blade provides enhanced mid to high‑frequency attenuation, achieving Rw (C, Ctr) 23 (‑2, ‑5) as tested to BS EN ISO 10140‑2:2021, while maintaining aerodynamic efficiency (Cv 0.144). With a solid metal front and rear, modular design, robust steel construction, and finish options, it delivers flexibility, durability, and long service life.
- 300 mm chevron blade profile provides superior noise reduction and airflow
- Certified acoustic performance tested to BS EN ISO 10140‑2:2021
- Modular design enables walls or runs in any required width or height
- Pre‑punched fixing points allow safe, quick two‑person installation
- Panel joining kits support longer spans with fewer structural supports
- Integrates seamlessly with Colt UL systems; optional rear‑mounted screens
