Manufacturers (6004) | (Categories in ‘Manufacturers’: Elta, Flakt Woods, Helios, Soler and Palau, Systemair, Vent-Axia, Ziehl-Abegg, Ruck)
The Helios VK 125 is a reliable automatic overpressure shutter designed for external air outlets with a 125mm diameter. Built with a conical spigot for simple plug-in installation and a foam sealing strip for added tightness, this unit ensures quick and secure mounting. The frame and louvres are made from UV-resistant, break-resistant white plastic ...
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 ...
The Helios VK 200 is a flat-profile overpressure shutter designed for efficient closure of 200mm air outlets. It operates automatically, opening when the fan is active and closing when the system is off, helping to prevent air backflow and intrusion of debris or insects. Engineered for performance, it supports airflows up to 8 m/s. The number of lo ...
The Helios VK 250 is a flat-style overpressure shutter engineered for 250mm diameter air outlets. Designed to automatically open when the fan starts and close when it stops, this shutter effectively prevents backdrafts and environmental ingress such as dust or insects. It supports a maximum airflow velocity of 8 m/s, making it suitable for a wide r ...
The Helios VK 30/15 is a compact, flat-style overpressure shutter designed for automatic control of air outlets. It opens and closes in sync with the fan operation — opening when the fan is active and closing when it stops — helping to prevent unwanted air return and maintain system efficiency. Capable of handling airflow velocities up to 8 m/s, this s ...
The Helios VK 315 is a flat-design overpressure shutter engineered to regulate airflow at 315mm air outlets. It automatically opens when the fan is running and closes when the fan is off, helping to prevent backdrafts, dust ingress, and unwanted air exchange. Built for airflow velocities up to 8 m/s, this shutter ensures reliable performance in res ...
The Helios VK 355 is a flat-design overpressure shutter designed for 355mm air outlets, offering automatic opening and closing in sync with the operation of the connected fan. This mechanism prevents backdrafts and protects against dust and outdoor air entering the system when the fan is off. Capable of handling airflow speeds up to 8 m/s, the VK 3 ...
The Helios VK 40/20 is a compact, flat-design overpressure shutter built for ventilation systems with 400×200 mm air outlets. Designed to automatically open and close with the fan’s operation, it effectively prevents reverse airflow and improves system efficiency. Capable of handling airflow speeds up to 8 m/s, the VK 40/20 ensures reliable air man ...
The Helios VK 400 is a flat overpressure shutter designed to enhance ventilation efficiency by preventing reverse airflow when the fan is switched off. It features automatic louvre operation that responds directly to fan activity, opening during operation and closing when the fan stops. Suitable for airflow velocities of up to 8 m/s, this shutter e ...
The Helios VK 450 is a flat-design overpressure shutter engineered for efficient ventilation control. It automatically opens when the fan is running and closes upon shutdown, preventing unwanted backflow and maintaining system integrity. Capable of handling airflow velocities up to 8 m/s, the shutter ensures reliable performance under typical venti ...
The Helios VK 50/25 is a flat-design overpressure shutter that automatically opens when the fan operates and closes when it stops, preventing unwanted airflow reversal. Designed to handle airflow velocities up to 8 m/s, it offers effective backdraft protection for ventilation systems. The number of louvres varies with shutter size, optimizing airfl ...
The Helios VK 50/30 overpressure shutter features a flat design and automatically opens when the fan is running and closes when it stops, preventing reverse airflow. Suitable for flow velocities up to 8 m/s, it ensures reliable ventilation system protection. The shutter includes a variable number of louvres tailored to the size for optimal airflow ...
The Helios VK 500 overpressure shutter features a flat design that automatically opens when the fan is operating and closes when the fan stops, preventing unwanted reverse airflow. It is suitable for use at flow velocities up to 8 m/s. Depending on the size, the number of louvres varies to provide optimal airflow management. This shutter is ideal f ...
The Helios VK 60/30 overpressure shutter features a flat design that automatically opens when the ventilation fan is switched on and closes upon fan shutdown, preventing unwanted reverse airflow. It is designed to operate effectively at flow velocities of up to 8 m/s. The number of louvres varies according to the shutter size to ensure optimal airf ...
The Helios VK 60/35 overpressure shutter is designed with a flat profile that automatically opens when the fan is activated and closes when the fan is turned off, helping to prevent reverse airflow. It is suitable for operation with airflow velocities up to a maximum of 8 m/s. The number of louvres varies depending on the size of the shutter, ensur ...
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