Hong Kong International Airport installs fabricated PE air valve tees.
Wednesday, August 1, 2018
HKIA project P3801 - Comprising 2500 meters of PE100 RC gravity drainage pipes and sewer rising mains in sizes: 160, 225, 500, 560, 710, 800mm OD.
PE100 RC pipe provides more than FOUR times the design and actual service life in wastewater / Sewer pipelines, when compared to traditional EN598 Ductile Iron pipe.
However just replacing the DI pipe with PE provides only half a solution. The DI fittings installed in a PE sewer pipeline will require replacement three times over the operating life of the system, whilst the PE pipe will not require any maintenance in the same period. It makes no economic sense designing wastewater systems with components that have one quarter of the service life of the pipe being installed.
This fact is not lost on system designers, all over the world the use of PE fittings in large diameter sewers is now common place. The design objective to have an end to end PE system, the common exception being valves, which are generally designed to be maintainable / replaceable in all pipeline systems.
download the pdf here: