Composite pipe for use in installation and heating equipment, has innermost layer made from polyvinylidene fluoride, exterior layer made from plastic material, and profile arranged at innermost layer on external periphery

摘要

The pipe has an innermost layer (1) made from polyvinylidene fluoride (PVDF), an exterior layer (7) made from plastic material, and a profile (2) i.e. T-shaped undercut, arranged at an innermost layer on an external periphery. The exterior layer is surrounded by a covering layer made of PVDF material, where the covering layer comprises another profile on an inner circumference. The profiles are aligned in longitudinal direction of the innermost layer and/or the covering layer. An interlayer (3) is surrounded under insertion of an adhesion promoter layer (4) by a metal film (5). An independent claim is also included for a method for manufacturing a composite pipe.