Ventilation box

CEB-type ventilation boxes designed for dual use: conventional air extraction and/or emergency air extraction at 400°C for 2 hours to work outside the risk area.
Manufactured in galvanised steel sheet and approved in accordance with standard UNE EN-12101-3:2002 in a Certified Fire Resistance Laboratory and with CE certification.
They incorporate a double inlet centrifugal fan with an inserted blade impeller. The fan is driven by a belt and pulley transmission by a motor located inside the box.
The motor is mounted on a sliding motor support to facilitate the tensioning and alignment of the transmission, and is also located outside the air flow.