It is designed to be fixed to form work prior to the pouring of concrete floor slabs. The collar accommodates the uPVC pipe fitting within the thickness of the slab enabling space saving.
Promat fire resistant collars are designed to provide effective passive fire protection by crushing plastic pipes during exposure to fire. In a fire event, plastic pipes begin to soften and melt for uPVC this occurs at approximately 70°C. As the pipe deforms, the intumescent material within the Promat fire collar expands, sealing the opening left by the collapsing pipe. This expansion forms an insulating barrier that reduces heat transfer between compartments and closes gaps to prevent the spread of smoke, fire and hot gases.
There are different types of fire collars suited to specific applications. Promat’s cast-in fire collar range allows accurate set-out of pipework and can be more cost-effective than retrofit collars when large quantities are required. The range has been tested for various building services, including plastic pipes, electrical cables, lagged copper pipes, copper pair coils and other common service penetrations.
For slabs incorporating lost formwork or with a thickness less than 120mm, please consult Progressive Materials.
