TPi April 2008

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April 2008 Tube Products International 49
OCTGwater, 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.
Friedrich Kocks GmbH & Co KG – Germany
TMK-Group – Russia
•
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
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
•
Wavin – UK
•
New size and colour ranges