TPi April 2008

OCTG water, gas &

Seamless tube mill modernisation The Russian TMK-Group, one of the world’s largest oil and gas pipe producers, has placed an order with the Italian Danieli-Group for the modernisation of the seamless tube mill at its subsidiary Seversky Truboprokatny Zavod (STZ). With Danieli Centro Tube (DCT) being the main contractor, the Pilger mill will be converted into a continuous 14" seamless tube mill with an annual capacity of 600,000 tons, and will simultaneously be radically modernised. A 5-stand retained mandrel mill FQM ™ , a 3-stand extracting mill, and a new 14-stand sizing mill will replace the previously operated two Pilger mills and the two subsequent sizing mills. Most of the downstream machinery will also be replaced. According to the cooperation agreement between DCT and Friedrich Kocks GmbH & Co KG, the company will again be responsible for the process, the design, the supply and the commissioning of the 3-stand extractor and the 14-stand sizing mill. Both mills are equipped with the innovative Star Drive, featuring individual drives for every roll. The 3-roll stands are designed for a nominal roll diameter of 650mm. The extractor operates with non- adjustable stands only, whereas the sizing mill has both non-adjustable and adjustable stand types. Important characteristics are the quick stand changing system, the in-line remote controlled pass adjustment for the adjustable stands, and the quick roll changing system in the roll shop. After the conversion the new mill will produce seamless tubes with diameters ranging from 168 to 365mm OD and wall thickness of 6.28 to 37.3mm, with excellent tolerances and material characteristics in accordance with the international standards to be used in the gas and oil industry. The new mill is scheduled for start-up in 2010. Wavin Plastics, UK, a supplier of plastic pipe systems and solutions, has expanded its OSMA Soil and Waste portfolio to provide increased compatibility with current waste solutions. The company’s Solvent Weld Overflow range now includes a 21.5mm system, a new addition to the range of system sizes from Wavin for the efficient removal of overflow water from condensing boilers and cisterns. The system enables direct connection to condensing boilers and provides secure, permanent jointing from products manufactured to industry New size and colour ranges

standard BS EN 1455. Offered by the new system is a comprehensive range of pipes and fittings – 29 in all, including reducer pipes to provide compatibility with other fittings and waste systems.

The new Solvent Weld Overflow range is currently available in black, white and grey.

Wavin has also added a range of black fittings and pipes to its OSMAWeld Waste system. Already available in grey and white, the range of pipe and fittings is being introduced in black for customers needing to connect black ABS waste pipes to black soil stacks. The OsmaWeld Waste system features secure and permanent jointing available in 32mm, 40mm and 50mm diameters. Under the OSMA brand, Wavin Plastics offers solutions for all water management issues, with expertise in rain and stormwater, foul water, drinking water, sanitary and heating. Over 17,500 products are designed and produced under the OSMA brand with many patents for a wide range of applications including above and below ground drainage, plumbing, underfloor heating, water management, and drinking water distribution.

Wavin – Netherlands info@wavin.com • www.wavin.com

Wavin – UK info@wavin.co.uk • www.wavin.co.uk

Friedrich Kocks GmbH & Co KG – Germany www.kocks.de

TMK-Group – Russia tmk@tmk-group.com • www.tmk-group.com

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April 2008 Tube Products International