MAIN FEATURE
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Berolina-HF-Liner for highermechanical characteristics – Due to the special construction of the glass sheets and higher glass content, the Berolina-HF-Liner achieves highermechanical characteristics resulting in a reduction of the structurally requiredwall thickness compared to the normal Berolina-Liner. The resulting lower weight allows easier handling. The Berolina- HF-Liner is also availablewith Integrated Enhanced Security (IES)whichmeans a smooth slip filmis no longer necessary for the pulling inwith the result that installation time can be reduced by up to 60 minutes.
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Berolina-LP-Liner for application in the low- pressure range – The Berolina-LP-Liner (LP=Low-Pressure) is used inwastewater pressure pipe rehabilitation. By using very resistant glass and the particularly favourable structural arrangement of the
glass sheets, amaximuminternal operating pressure of 3 bar is possible. The standard Berolina-Linerwasmodified and used for the low-pressure range under the name Berolina-LP-Liner in order to rehabilitate pressure pipes too. This linerwas installed for the first time in 2008, in the CHP plant in ReuterWest in Berlin. The installation sequence differs fromconventional rehabilitationmethods due to the preparation and follow-upwork. In wastewater pressure pipes, all sharp-edged depositsmust be removed before the liner is pulled in. This is followed by pulling in a slip liner, the liner, calibration and UV light curing. The liner ends are joined onto the existing pipe bymeans of a flange joint. This method replaces the time-consuming replacement of pipe sections.
Brandenburger – Brandenburger develops and
manufactures pipe liners in-house for trenchless sewer rehabilitation.Whatmakes it so special is the patentedwrapping technology,withwhich the company has produced a total ofmore than 7,000,000mof pipe liner over the past 20 years. The pipe liners are hardenedwith UV light, forming a newpipewithin the old one.
The pipe liners arewrapped to forma tubewith pre-impregnated laminate rolls. This creates a uniformwall thickness andwith pre- impregnation complete penetration of the resin into the glass fibrematrix can be guaranteed. This ensures that there are no flaws in the material and a full-surface pure resin layer forms on the surface of the pipe liner.
As the dimensions, cross-sections and mechanical loads differ depending on the channel to be rehabilitated,we offer a suitable product for every situation combinedwith technical advice.
With linerwall thickness ranging from3mmto 5 mm, the various liners available from Brandenburger are applicable to pipes of diameter fromDN150 to DN1600.
Brawo Systems – According to Brawo Systems, which has C J Kelly International Ltd and S1E as distributors in the UK, the BRAWOMagnavity light curing systems is Smart - Efficient – Powerful. These three attributes it is claimed stand for the innovative BRAWO®Magnavity system,whichmakes light curing even smarter, more efficient andmore powerful. The system consists of a choice of two intelligent LED heads, a 50mlong combination hosewith integrated energy and compressed air supply, a retraction unit and a control box. The innovative, unique design of the LED head allows it to be retracted simultaneouslywith the inversion of the liner. Curing is thus carried out immediately after installation of the liner,without the need for additional insertion of the eel. In thisway, a completework step is saved, and evenwith long pipes and ducts, one access point (e.g. inspection opening) is sufficient for the rehabilitation.
In addition to the already familiar Nano LED head with 96 high-performance UV LEDs for use in pipe diameters fromDN 70 to DN 250, there is nowalso the new, extremely powerfulMega LED head. Thanks to its 192 high-power UV LEDs and the associated greater light output, up to approximately 70%faster curing is possible compared to the Nano LED head. TheMega LED head is suitable for rehabilitating the dimension
8 | June 2021 |
www.draintraderltd.com
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