Wall air inlet 200 mm stainless steel SpiroFlex CW200-N

The SpiroFlex wall air inlet with a 200 mm nominal diameter is a stainless-steel component designed to supply fresh air into mechanical or natural ventilation systems. Intended for mounting in exterior walls, this inlet provides a direct connection to standard circular ventilation ducts and is suitable for residential and light-commercial installations where corrosion resistance and a robust exterior are required.

Advantages

The stainless-steel construction ensures long-term resistance to weathering and corrosion, reducing maintenance needs in outdoor exposure. A 200 mm nominal diameter offers compatibility with common ductwork sizes, enabling straightforward integration into existing ventilation layouts. The wall-mounted form factor simplifies installation and provides a stable, secure air intake point while maintaining a compact external profile.

Suitable for

• Fresh air supply to residential ventilation systems
• Light-commercial buildings such as offices or small retail spaces
• Connections to circular ventilation ducts with matching diameter
• External wall installations requiring corrosion-resistant inlets

Key specifications

• Material: stainless steel for exterior durability
• Nominal diameter: 200 mm suitable for standard duct connections
• Mounting type: wall-mounted inlet for exterior installation
• Application: supply air inlet for mechanical or natural ventilation

How to use

Install the inlet in a prepared opening in an external wall, ensuring the aperture matches the 200 mm nominal diameter or uses an appropriate adapter for a tight fit. Secure the inlet with suitable fasteners and sealants to prevent water ingress and thermal bridging. Connect the internal side of the inlet to circular ventilation ducting of matching diameter, verifying airtight connections and proper alignment for unobstructed airflow. Follow local building codes and ventilation design recommendations to determine placement height and any screening or backdraft dampers required by the system.

Usage recommendations

Regularly inspect the external face for debris, bird nesting, or accumulated dirt and clean as necessary to maintain unobstructed airflow. For installations in coastal or highly polluted environments, consider periodic checks to monitor for surface corrosion despite stainless-steel construction. Use compatible duct sealants and fasteners to preserve airtightness and thermal performance.