MACHINERY | CORRUGATED PIPE
Right: Pipe from Pacific Corrugated Pipe Company has provided drainage for a football field in Haiti
The lightweight pipe was ideal for the project – due to its remote setting and the limited availability of heavy installation equipment. This made even relatively large sections of pipe quite simple to install, said PPI. The pipe was easy to manoeuvre and nest – for efficient transport – and could be installed in Haiti without needing heavy equipment. “An additional benefit of the HDPE pipe is its
resiliency,” said Daniel Currence, director of engineering in PPI’s drainage division – pointing out that HDPE will not corrode, rust or degrade due to biological attack – so it resists ‘bio-clogging’ and can maintain consistent flow over its service life.
Emission reduction Uponor Infra and Borealis have collaborated on a
gravity plastic pipe that claims to reduce CO2 emissions by up to 70%. Ultra Rib 2 Blue is a new generation of polypro- pylene (PP) sewer pipe which reduces carbon footprint reduction over its lifetime. This is achieved because more than half of the raw material used to make it comes from renewable feedstock. It uses Borealis’ Bornewables – a portfolio of polyolefins made with renewable feedstocks, which offer the same material performance as virgin polyolefins. The specifications of the pipe are the same – in
terms of properties and performance – as the standard Ultra Rib 2. The pipes are made at Uponor’s factory in Fristad, Sweden. The first installation was in Sweden, by Sigtuna
Vatten (“Sigtuna Water”), which – via contractor SH Bygg in Uppsala – installed the pipes during an expansion at its Västra Rosersberg logistics centre. To maintain sustainability, the pipe was deliv-
Below: Uponor Infra’s Ultra Rib 2 Blue PP sewer pipe is partially based on renewable feedstock
ered to Västra Rosersberg by DSV trucks that were powered by fossil-free raw materials – the same as that used in Ultra Rib 2 Blue, says Uponor. Customers receive a sustainability declaration of the amount of renewable raw material in their Ultra Rib 2 Blue, following the mass balance approach. “We are pleased to collaborate with Borealis to
create this plastic pipe,” said Sebastian Bondestam, president of Uponor Infra. “We are delivering on our promise to offer the highest quality in a sustainable product.” The Ultra Rib 2 Blue is backed with independently verified data, said Uponor. Robin Bresser, head of marketing for pipe at Borealis, added: “The Bornewables portfolio represents a key step in our efforts to offer products decou- pled from fossil-based feedstock. We
30 PIPE & PROFILE EXTRUSION | May/June 2022
are helping customers to set and achieve ambi- tious sustainability targets while meeting the stringent requirements of pipe quality standards.”
Range expansion ITIB Machinery of Italy has developed a new corrugator – the largest in its range – that can be used to produce pipes up to 800mm in diameter. The company recently used the new FV800SH9 device in a test of a new extrusion line to make PE double wall corrugated pipes for storm and sewage water drainage. The company now produces corrugators covering pipes ranging from 160 to 800mm diameter – which it says covers nearly 90% of the demand for infrastructure pipe. “The use of this type of product in the market – as an alternative to concrete or PVC pipes – led us to invest in this development,” said the company. The FV800SH9 corrugator uses ITIB Machinery’s technical knowledge in developing corrugators for large pipes sizes: a shuttle mould handling system; integral cooling – with chilled water that flows directly inside the moulds; and vacuum-assisted forming. Several updates also help to make it easier to use, while boosting plant productivity and reliability. It has the same number of mould pairs as its
predecessor (the FV700), but the cooling channel has been increased by up to 50%. In addition, a cooling circuit inside the moulds is optimised for high-efficiency heat exchange, while the vacuum circuit has been renovated. This optimises distribu- tion of material along the pipe’s length, which helps to increase resistance and lightness. The external cooling circuit uses high-flow valves that engage in the moulds of the forming channel, moving on high-precision guides. A thermoregulation system keeps the moulds at optimal temperature.
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IMAGE: PPI
IMAGE: UPONOR
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