Continuous 40-ft. Pipes
Pipes in 40-ft sections are especially useful for transfer lines and other long, straight runs. They come in swaged polytetrafluoroethylene- (PTFE), polypropylene- (PP) and polyvinylidene fluoride- (PVDF) lined pipe in 1.5- to 6-in. sizes, and in perfluoroalkoxy- (PFA)lined pipe in 1.5- to 2-in. sizes. Plastic-lined pipe that is loose-lined or reverse-swaged — where the liner is compressed then inserted into a steel shell, where it expands —has been limited in length to 20 ft.