ESSMANN® all-weather finned ventilator for ventilating and extracting smoke and heat, plus with two settings for daily ventilation.
a) Fair weather (ventilation via finned ventilator)
b) Bad weather (ventilation via controllable side flaps)
The ESSMANN all-weather finned ventilator is a combination of a finned ventilator and a controllable base frame.
The finned section of the finned ventilator consists of a transparent, double-skinned twin-wall profile made of polycarbonate with a coextruded UV protective layer/made of single-skinned aluminium/made of two-skinned aluminium and an EPDM elastic seal on the bottom edge of the fin.
Stainless steel bearing bolts fit into die-cast aluminium side panels, which have double bearings in maintenance-free nylon bushes. An EPDM lip profile is incorporated into the side panel to provide additional sealing.
The extremely stable frame of the finned ventilator is made of corrosion-resistant, canted and welded aluminium (AlMg3, F23), with an internal rain drainage system and weather-proof sealing brushes on the rain gutter. All parts are rust-proof.
An aluminium structure with welded edges forms a solid foundation for the base frame. Two flaps attached on the longitudinal side enable the air flow to be controlled when it rains. The ESSMANN finned ventilator and the base frame are both fitted with a pneumatic cylinder that can be used to open or close the two ventilation channels independently of one another.
The integrated thermal valve ensures that the flaps are activated thermally/automatically at an ambient temperature of 68°C.
- Open/close function
- Opened by compressed air
- Locks in open position in the event of a fire
- Closed by spring force Can be controlled externally via a fire emergency control box in the event of a fire or via a ventilation control box for daily ventilation; these control options are designed on a project-specific basis.
A two-pipe system is needed to control the ESSMANN all-weather finned ventilator. Technical specifications:
Width of roof opening for lights: _____mm
Length of roof opening for lights: _____mm
Inner flap height: _____mm
Available ventilation area in fair weather: _____m²
Available ventilation area in bad weather: _____m²
Available aerodynamic smoke extraction area: _.___m²
