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Mechanical systems/ Ventilation/ Ducts

FIRE RESISTANT VENTILATION FLUES FOR KITCHENS

Urkizu, 30 48140 Igorre (Vizcaya). Spain
Tel.: (+34) 946 311 850 / (+34) 902 200 123
Fax: (+34) 946 311 851 / (+34) 946 311 855
www.negarra.com Contact
Professional kitchens with an electrical installation of more than 20 kW are considered special risk areas. The exhaust flues of these kitchens should be independent from all other exhaust or ventilation, that is, each kitchen should have a dedicated exhaust flue. The flues should have an EI 30 classification when they pass through the interior of a building, or on facades at less than 1.50 m from areas of the facade that are less than EI 30, or from balconies, terraces or operable openings. At the flue penetrations of fire compartmentalizing elements the fire resistance of these elements must be maintained. This can be achieved with a fire resistance in the flue that is at least equal to the element that is being penetrated. Negarra provides modular metal chimneys for horizontal or vertical installation with fire classifications from EI 30 up to EI 120. They are composed of two steel cylinders separated by high-density ceramic fibre insulation, with a thickness from 25 up to 100 mm.
Available chimney diameters: from 80 to 1000 mm.

Available chimney diameters: from 80 to 1000 mm.

Section through a fire resistant flue: two steel tubes with fireproof insulation between them.

Section through a fire resistant flue: two steel tubes with fireproof insulation between them.

Horizontal and vertical sections of an exterior ventilation flue.

Horizontal and vertical sections of an exterior ventilation flue.

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