Kin Kay Engineering Co. DN450 (500 OD) PE100 RC twin sewer rising mains at Hong Kong International Airports new Midfield Concourse.
Saturday, July 1, 2017
The Midfield Concourse is located to the west of Terminal 1, between the two existing runways at Hong Kong International Airport. The project is a five-level concourse with a total floor area of 105,000Sqm combining 20 aircraft parking stands including two A380 stands.
Wastewater, collected from the Midfield Concourse, is pumped to chambers for connection to the main sewers. Mill-Pro’s M90ES PE100 RC (Resistance to Crack) CCTV pipe, fittings and Friatec electrofusion couplers were used to provide a 100 year design life, without the need for maintenance.
Cyclic fatigue* (on/off pump cycles) and surge (water hammer) must be considered in any design using plastic or GRP pressure pipelines. With PE100 RC compounds the pipe does not need to be de-rated over the full 100 year design life according to the UK standards IGN WIS 4-37-02 due to PE100 RC’s exceptional crack resistance properties (* ≤ 1200 cycles per day, ** Surge < 2x PN).
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