Kair Fire Rated Ceiling Extract Valve 125mm 5 inch White Coated Metal Vent

125mm / 5 inch Extract Valve. Fire Tested to BS EN 1365-2:1999 with a 60 minute rating for ceilings. Valve manufactured from 1.0mm thick sheet steel painted in white RAL9016 Satin. Mounting ring manufactured in 0.6mm thick galvanised steel with four 3mm fixing holes. The valve body is supplied with a cellular plastic gasket to form an air-tight seal. The control disc incorporates an intumescent pad which expands to seal the valve in a fire., Manufacturer: Kair