TPi May 2014

Plast ic pipes

PVC-O: a revolution in pipes PVC-O pipe is considered a high performance product, yet its application has not been as extensive as might have been expected. Technical limitations and poor efficiency in manufacturing processes were obstacles to the wide application and use of PVC-O pipes. process, widening the range of product to high pressures and large diameters, and opening new markets.

alignment brings strength and confers other mechanical properties, including impact resistance (molecular orientation prevents the propagation of cracks and scratches and reduces the risk of rapid crack behaviour); hydrostatic resistance – up to twice the nominal pressure; and excellent behaviour to the effects of water hammers. It is also claimed to provide higher hydraulic capacity: between 15 and 40 per cent more than pipes made from other materials and with similar external diameters. The molecular orientation process reduces the thickness of the pipe wall, giving PVC-O pipes a greater internal diameter and flow section. This reduction in raw material requirements makes them lighter and easier to handle during transport and installation. The pipes can withstand deformation of up to 100 per cent of their internal diameter without fissures. They are also corrosion resistant and assure the maximum water quality, which has been certified by different entities. In the UK, the pipe has obtained the sanitary certificate of compliance WRAS (UK). The pipes manufactured by Molecor range from DN 90mm to DN 630, and up to 25 bar.

Molecor PVC-O pipes are obtained from conventional PVC pipes after the molecular orientation process. This is a physical process that stretches the material and, under certain conditions of pressure, temperature and speed, reorganises the polymer molecules, achieving a laminar structure. This new

However, these limitations have been overcome, and theair processofmolecular orientation developed by Molecor provides an efficient manufacturing

Molecor PVC-O pipes

The pipes provide flexibility and strength

Molecor Tecnología, SL – Spain info@molecor.com www.molecor.com Eco-friendly tubes for industrial applications

The BBIO Universal Tecalemit tubes are rigorously calibrated and are available in various diameters, as well as in an assortment of colours. The tubes are produced in long lengths and are packed in sachets, boxes or reels of multiple 25m lengths. Since 1961, Tecalemit Flexibles has specialised in manufacturing pneumatic tubes for all engineering industries, providing solutions for transporting hydraulic fluids, as well as different kinds of connectivity. The company’s products are supplied by a network of exclusive distributors.

physical and thermal advantages of Tecalemit Flexibles’ tubes are also significant. The tubes boast a higher operating pressure, improved flexibility and greater impact resistance. Lightweight and impermeable, BBIO Universal Tecalemit tubes are resistant to abrasion and negative pressure, generating only very low pressure losses. The tubes are robust and durable, which results in economic advantages for users. Tecalemit Flexibles tubes are also resistant to chemical agents, hydrocarbons and zinc chloride, even at low temperatures. A certain swelling may occur in aromatic hydrocarbons and alcohol, but this is without damage to the material.

Tecalemit Flexibles, a specialist in flexible hoses for industry, manufactures the innovative BBIO Universal Tecalemit ® tube, which is made from plastics of 100 per cent biological origin, and is claimed to have technical qualities superior to tubes fabricated using petrochemical industry products. The BBIO Universal Tecalemit tube is made from 100 per cent polyamide Rilsan ® T. The oil that is produced from grinding castor oil seeds is Rilsan T’s only component after both synthesis and polymerisation. This manufacturing process generates much less CO 2 and fewer greenhouse gases than in the production of polymers in the petrochemical industry. In addition to this ecological benefit, the mechanical,

Tecalemit Flexibles – France info@tecalemit.fr www.tecalemit.fr

108

Tube Products International March 2014

www.read-tpi.com