The Helios VK 160 overpressure shutter is designed for flat installation at external air outlets with a 160mm connection size. Featuring automatic operation, the shutter opens when the fan is in use and closes when the system is off, providing effective protection against backdrafts, debris, and pests.
With a maximum airflow velocity capacity of 8 m/s, it ensures optimal performance in both residential and light commercial ventilation setups. The number of louvres adapts based on the unit’s size. Its low-profile construction makes it ideal for applications where a discreet and efficient airflow control solution is needed.