CORRUGATED PIPE | MACHINERY


Corrugated pipe continues to find use in cutting-edge projects, while machinery producers look to improve the speed, performance and control of their equipment


Draining ground: corrugated pipe


Corrugated pipe is typically the infrastructure of choice for drainage projects – with its high mechan- ical strength and light weight making it long lasting, and straightforward to install. Last year, a stretch of road in Toronto, Canada used corrugated pipe from Advanced Drainage Systems (ADS) to handle storm water runoff. Updates to a stretch of Highway 401 included


upgraded storm water drainage systems – in this case, more than 2,200m of Duraslot slotted surface trench drains in 300mm and 375mm diameters. Duraslot is made from ADS N-12 dual-wall


corrugated high-density polyethylene (HDPE) pipe with an aluminium slot mounted on top. Designed to intercept sheet flows of water across paved or cleared areas, it is an effective substitute for products such as corrugated steel slotted drains and precast trench drains. An outer corrugated wall provides strength and


durability, while the smooth interior lining improves hydraulics. Requiring only a shallow installation depth, Duraslot can reduce the total installed costs on a project, says ADS. Duraslot has the same inlet as corrugated steel


pipe slotted drains. A 45mm-wide opening runs the length of the pipe, and special connectors provide for a continuous slot of virtually unlimited length.


www.pipeandprofile.com


Field drainage A football field for underprivileged children in Camp Marie, Haiti – set up by the charity Project Living Hope – has used corrugated high-density polyethylene (HDPE) pipe for drainage. As well as providing a better solution than other piping alternatives, it allowed the drainage improvements to be made in one go, rather than in phases. Around 1,500 feet of pipe from Pacific Corru-


gated Pipe Company of Hubbard, Oregon – in diameters of 6-36 inches – was used in the project. Without the drainage system, storm water would take around a week to clear from the fields. Now, rainwater is quickly diverted – leaving the fields dry, and available for daily use. “Due to the remoteness of the location, it was


vital that our solution be easy to handle and effortless to install,” said the company. “Since the site had limited equipment, the light weight of our HDPE pipe was critical.” The project was completed with “the assistance


of a small Caterpillar excavator, a couple of dump trucks and brute human strength”, it added. Last year, it was named the best drainage


project of the year, in the annual awards organised by the US-based Plastics Pipe Institute (PPI).


� May/June 2022 | PIPE & PROFILE EXTRUSION 29


Main image: Unicor has helped a customer produce a


double-walled corrugated pipe at high speed, by


using a cooling mandrel


IMAGE: UNICOR


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