Fire resistant plastic pipe

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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189/47

F16L 59/147 (2006.01) F16L 59/14 (2006.01) F16L 59/153 (2006.01)

Patent

CA 1281662

A B S T R A C T FIRE RESISTANT PLASTIC PIPE A plastic pipe is coated at the outer surface thereof with a thermal insulating layer comprising phenolic foam. This layer is enclosed in an integrity retaining layer comprising fibres, such as glassfibres, which fuse together upon exposure to fire, thereby providing mechanical strength to the foam if the pipe is exposed to fire.

533539

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