TPI April 2011

developments products &

Renovation of drinking water pipes The shortage of clean drinking water is a worldwide problem. More than 55% of drinking water never reaches kitchens and bathrooms due to leaking and run-down supply pipes. A system from MultiLining Products ApS is designed to resolve this situation, without digging and without huge investment in costly equipment. Tube-In is a complete system for the rehabilitation of potable water pipes and pressure pipes. By pulling an armoured polyethylene hose through the leaking water pipe, it regains the condition of a new pipe. The system is efficient and extends the life of the pipe.

Cast iron welding

inside layer, a strong armour layer and an outside layer of polyethylene. This construction gives a very strong pipe with a clean and smooth inner surface. Tube-In fits most pipe dimensions and may be installed in lengths up to 500m (1,640ft). The system, which is usable in pipes with a pressure up to 20 bar (280 psi), accurately follows the shape of the old pipe, even through bends. The system is installed by means of very simple and inexpensive equipment, and the system is patented, tested and approved in most European countries. Before installing, the pipe is cleaned to remove any deposits, either with a steel scraper or a Polly Pig – a cylindrical plug that is pressed through the pipe several times by means of water or air. Tube-In is then pulled through the old pipe. When water pressure is restored the Tube-In will expand and take the shape of the host pipe.

using silicon welding rod Sif Super Silicon No9 is a welding rod in the Sifbronze range for oxy- acetylene welding of cast iron from Weldability-Sif, a UK-based supplier of MIG, TIG, MMA, spot and oxy/fuel welding and plasma cutting machines, torches, accessories, consumables and personal protective equipment. It is designed for full fusion welding, providing an easily machined, high strength weld metal, and at the same time providing a good colour match with the same structure as grey cast iron.

Weldability-Sif – UK info@weldability-sif.com www.weldability-sif.com

MultiLining Products ApS – Denmark multiliner@multiliner.dk

Tube-In has a wall thickness of 2-3mm and is constructed of a polyethylene

MEZZA SCELTA.indd 1

www.read-tpi.com 18-06-2010 10:05:33

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Tube Products International April 2011