TPi July 2008

developments products &

PP multilayer pipe for well shafts Italian pipe manufacturer Riccini Srl will shortly begin operating a new extrusion line from KraussMaffei Berstorff to produce multilayer PP well pipe. This type of pipe is used in sinking wells that extract drinking water from groundwater. The section of the pipe that reaches into the groundwater has apertures through which water enters the pipe. The conventional material for this type of pipe used to be PVC. Riccini is now planning to offer PP well pipe as an alternative solution. The middle layer of the pipe, with CaCO 3 filler, is produced by the main KME 105-36 B/R extruder. The new extruders are KraussMaffei Berstorff’s largestmachines for polyolefin pipe; they deliver maximum output rates of 760kg/h for PP and 1,100kg/h for HDPE. The longer processing units (L/D ratio 36) increase the specific melt throughput and total output. Increasing the time the melt spends in the extruder results in a stable process and high product quality. It improves the thermal and physical homogeneity of the melt and makes it possible to run the process at relatively low temperatures. The inner and outer layers of the pipe, made of unfilled PP, are produced on a KME 45-30 B/R coextruder. The compact design of this coextruder facilitates integration in a production line. The layers are joined in a KM3L RKW 75 3-layer pipehead. KraussMaffei produces machines and systems for plastics and rubber processing, with three divisions – injection-moulding technology, extrusion technology and reaction process machinery. The group offers a wide range of solutions, including specialised and fully integrated turnkey systems. Riccini is a longstanding KraussMaffei Berstorff customer, operating two extrusion lines with a total of four KME 90-36 B/R extruders to manufacture PP well pipe. Riccini’s new system is scheduled to go into operation in August.

‘Grand slam’ of installations at Twickenham

strongly supported by a technical team utilising computer software. This ensured that any problems we encountered were redesigned and resolved quickly.” Mike Rawlings, Saint-Gobain Pipelines, added, “This is an extremely prestigious project, and to have our products specified for two separate aspects of it is a major coup for us. It shows clearly the continuing demand for cast iron drainage systems which offer the best performance in larger buildings, whether industrial, commercial or residential.” The EPAMS range is a popular choice among stadium designers, having been specified for several of the stadia used for the 2006 FIFA World Cup in Germany. Saint-Gobain Pipelines – UK sales.uk.pipelines@saint-gobain.com www.saint-gobain-pipelines.co.uk

Iron technology supplier Saint-Gobain Pipelines has scored a grand slam by winning another contract at the redevelopment of Twickenham, the home of Rugby Union in England. The company’s EPAMS cast iron syphonic rainwater system has been installed on the redevelopment of the stadium’s South Stand, which has increased stadium capacity from 75,000 to 82,000 and now includes a luxury hotel, conference centre and Rugby shop. EPAMS was chosen for its high specification and low installation time due to the fewer number of vertical stacks required, which in turn minimises cost. The range is specifically designed for buildings with large roof areas due to its high fire resistance and lower noise transmission over other materials. The installation was undertaken by Cardiff-based specialists Thorne Rainwater Systems. Over a nine-month period, as the overall installation progressed, the company worked closely with Saint-Gobain’s technical support team, architects and contractors to optimise the system design. Alongside cast iron pipework which meets the exacting BS EN 877 standard, stainless steel outlets with clamping flanges have been installed within the perimeter gutter. Saint-Gobain’s Ensign range had also been specified and installed for the soils and gravity rainwater systems at the Twickenham redevelopment. “This was an ideal project for the EPAMS range,” commented Terry Thorne, of Thorne Rainwater Systems. “The flexibility of the range meant that we were easily able to adjust the design as the project progressed without compromising on the integrity of the installation. The EPAMS system is Thiswas thekey factor in its specification, given its planned use within the hotel.

Rotary Indexing Table Machines

Solutions for complete machining of

· Turning- and tubular parts · of coil- or bar-material

· Extruded-, casted and forged parts

for medium to large production batches

compact fast

precise

Hall 5, booth B54

economical

KraussMaffei – Germany www.kraussmaffei.com

Wolf Maschinenbau AG www. wolf-maschinenbau.de info@wolf-maschinenbau.de

Riccini Srl – Italy info@riccini.it www.riccini.it

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July 2008 Tube Products International