Coxdome SHEV AOV Offset actuator 160mm Kerb

• Certified Safety: Fully compliant with EN12101-2, ensuring reliable smoke and heat exhaust performance in fire emergencies.
• Fast, Automatic Operation: Opens to 140° within 60 seconds, allowing smoke and hot air to escape quickly.
• Built for Durability: Resists high wind loads up to 1500N/m² and snow loads up to 600N/m².
• Versatile Design: Available in a wide range of sizes, with clear or obscure glazing.
• Smart Integration: Seamlessly connects to Building Management Systems with optional 24V control panels and full accessory support.

Performance and flow information

Available with the actuator offset or centrally located

Coxdome's Smoke and Heat Exhaust Ventilation (SHEV) systems—also known as Automatic Opening Vents (AOVs)—are critical components in fire safety design. In the event of a fire, they automatically vent smoke and hot gases to maintain clear evacuation routes and improve firefighter visibility.

Smoke inhalation, not heat, is the biggest danger in building fires. Without proper ventilation, smoke rapidly fills spaces, reducing visibility, blocking exits, and increasing the risk of flashover—a sudden, intense fire spread. Coxdome SHEV (AOV) systems help prevent this.
Performance & Technical Highlights

Ventilation Power

•   Opening Angle: 140° for maximum air extraction.
•   Aerodynamic Free Area (Aa): Up to 0.60 m² for efficient smoke release.
•   Opening Speed: Under 60 seconds for quick emergency response.

Structural Specs

•   Construction: Galvanised steel mechanisms.
•   Covers: Choice of triple-skin polycarbonate (clear/obscure) or solid aluminium (by special request).
•   Motor: Compact 24V unit, low noise, reversible polarity for open/close control.

Environment-Ready

    Wind Resistance: Up to 1500N/m²
    Snow Load: Up to 600N/m²
    Low Temperature Operation: Rated for -15°C
    Heat Exposure: Class B300
    Reaction to Fire: Rated Class

Kerb Detail

    Includes 160mm vertical PVC-u kerb, to be installed on timber upstand to maintain 300mm above finished roof level (per regulations).

Control Options

24V 5A and 8A control panels available. Panels include battery backup for power failure resilience.

Can be triggered via:

•         Smoke detectors
•         Fire alarm systems
•         Manual override switches (at vent and ground floor)

Accessories Available

•     Control Panels
•     Fire Brigade priority switch
•     Break glass switch
•     Smoke Detectors
•     Comfort Switches (manual open/close)

Ideal For

•     Commercial and residential buildings
•     Schools, offices, retail units, and public buildings
•     Any environment requiring compliant, responsive smoke ventilation