The ceiling partition with PRODEC-R KST mechanical closure element for flush mounting is used to seal off air ducts made of POLO-KAL NG plastic pipes.
It consists of a white powder-coated sheet steel housing with a pipe connection piece. The three mounting brackets on the outside of the housing ensure that the ceiling penetration seal remains in the same position in the event of a fire. Inside the housing is the intumescent layer and the powder-coated damper blades, which are held in the open position by a thermal release device.