TPT March 2012

26-30 March 2012

Thus, field segmentation of elbows is often necessary and part of normal field segmentation practice. In the case of typical segmentable elbows, common standards (eg MSS SP 75) refer to limitations regarding the out of roundness of an elbow with ±1%. However, these limitations do not take into account the tolerances of the nominal diameter of the pipes and the fittings. Using a new high precision mandrel forming method, Erne Fittings provides elbows, guaranteeing optimum nominal diameters together with tightest tolerances via the whole body of the fittings after cutting with conventional methods in the field. This enables the field segmentation of elbows during the installation of line pipes with minimum misalignment between pipe and fitting and thus, a convenient way to carry out all welding operations without any adjustments of the bevel ends prior to welding. Moreover, the use of pups (small adapter pipes), which are usually used to enable back welding is not necessary, since the root layer can be welded in high quality from outside only due to the small misalignment of the root face. The use of these segmentable elbows reduces the necessary number of such pups in line pipes and hence the number of circumferential welds as well as the time for adjustments prior to welding. This increases efficiency during line pipe construction and substantially reduces construction time and costs. 5E33 ESCOFIER, SAS, France, is a pioneer of cold rolling profiles on mechanical parts dedicated to the automobile market. As one of the worldwide leaders of this specific technology, its knowledge and associated machines are well known by all the majors OEMs forming threads and splines on shafts utilised in gearboxes and transmission systems. As a result of its long experience, and having successfully developed its Flex Quattroll – a cold rolling machine dedicated to thin wall stainless tubes with low fins capable of working from 5 to 6m per minute – the Escofier product line is now completed Email: office@ernefittings.com Website: www.ernefittings.com Escofier France

Dynobend offers a combination bending machine

The DP15T-16-2 tube end forming machine was developed with a new approach that made it possible to create a machine with maximum benefits. For example, it is able to form both ends of the tube, even with different end forms, without the necessity of intermediate storage. This is possible because of the unique functionality of the machine: working on two sides with a total of 32 dies. The machine has four clamp positions. This, in combination with its freedom for clamping already bent products, results in greater performance. All movements are servo-electric steered, and deceleration energy is transferred to the next circuit, so the machine has lower energy use. The machine is equipped with Dynobend PC steering, and is very user friendly. The other development is a completely new version of combination bending machine – a combination of mandrel bending and roll bending (also available in a multi radii version). By constructing the machine in a sophisticated way, Dynobend has created a bending machine with a great degree of freedom: left- and right-turn bending, free form roll forming and multi radii bending brought together in one machine. Fax: +31 53 850 77 31 1B25 THE construction of line pipes often requires abrupt directional changes due to topographic changes in hilly terrain or any other unknown installation issues during the construction in populated areas and cities. Another challenge in line pipe maintenance are repairs where an elbow must be fitted to the existing pipeline segment in the shortest time possible. Email: info@dynobend.com Website: www.dynobend.com Erne Fittings GmbH Austria

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M ARCH 2012