Concealed Housing DN 75/80, Backflow Preventer 230x230x89 mm – 8111

Flush-mounted housing without fire protection, with airtight backdraught shutter. Discharge spigot on the side, upwards (delivery state), rotatable to the left or right. Can be converted for rear air discharge in any position using an accessory set (-ARS, order no. 8185). Removable plug-in connection for electrical connection. Made of plastic in fire class B 2. Reusable hinged plaster cover. Connection DN 80 mm. Area of application For ventilation of bathrooms or WCs, and with an accessory set, also for two-room ventilation of bathrooms and WCs. Flush-mounted installation in walls, ceilings or installation shafts. Connection of 1 or 2 devices to a common main line up to 20 floors. Fire protection can be achieved by using ceiling bulkheads.