TPi January 2008

developments products &

Another argument in favour of composite pipes for heating and sanitary installations is the continuously high copper price. Besides weldable pipe systems made of PP-R and PB, the first real breakthrough inhot water transport pipeswas achieved with PE-Xa pipes, followed by PE-Xb, PE-Xc and CPVC pipes, depending on the region. PE-RT pipes were mainly used for under-floor heating, until they were also established as inner layers in aluminium composite pipes. The approval for drinking water transport (hygiene requirements) for various types of pipe is granted only after lengthy approval procedures, which often differ from one country to another. Cincinnati Extrusion GmbH – Austria welcome@cet-austria.com www.cet-austria.com Indonesian steel manufacturer PT Steel Pipe Industry of Indonesia (Spindo) is an experienced manufacturer of a wide range of steel pipes/tubes and other related products. The company is certified to ISO 9002 and API 5L, and its products also comply with international standards such as API, JIS, BS, ASA, ASTM, and SNI, the national standard of Indonesia. Products undergo pressure tests, leak tests and other tests using high standard testing equipment such as hydrostatic machines, ultrasonic test and evaluation machine, holiday detector and thickness gauge. Products include ERW pipes (¼"-8"), spiral welded steel pipe (8"-120"), stainless steel pipe (½"-4"), and steel pole. Other services include inside cement mortar lining, outside wrapping tape/ coaltar enamel, general galvanising, shearing service and slitting service. Nuova PDM Srl – Italy www.nuovapdm.com

Pipe couplings for Russian WTWmodernisation

Fittings from Viking Johnson, UK, are being used to help bring international quality standards to one of the Russian Federation’s largest water treatment plants. FlexLock and UltraGrip couplings are being supplied for connecting filtration pipework in St Petersburg’s Northern water treatment works, which is being modernised and expanded to a capacity of 1,275Ml/d.

FlexLock is particularly suitable for above-ground applications and as an alternative to traditional anchoring systems, and UltraGrip is a versatile means of gripping and sealing onto most pipe materials. The Northern WTW project is part of a comprehensive upgrading of the water and wastewater facilities serving St Petersburg’s 5 million inhabitants. It has been commissioned by the city’s water utility Vodokanal, and is the first in Russia certified to ISO 14001. Funded by the European Bank for Reconstruction and Development, the programme is being implemented by an international consortium with input from the UK, Sweden and Finland. Viking Johnson’s patented FlexLock range of self-anchoring pipe couplings and flange adapters is a quick and simple alternative to on-site welding, harnessing or thrust blocks. Suitable for ductile iron or steel pipes, FlexLock has stainless steel teeth moulded into the gasket that grip the outer surface of the pipe as the bolts are tightened, preventing pipe pullout under pressure yet still allowing for angular deflection. Available in nominal sizes from DN50 (2") up to DN300 (12"), FlexLock couplings and flange adaptors have pressure ratings of 16 bar from DN50 to DN200 and 10 bar from DN250 to DN300. Couplings can accommodate total angular deflection of ±6° (±3° for flange adaptors). UltraGrip pipe couplings, flange adaptors, Pecatadaptors and end caps are supplied complete with unique grippers that offer full end restraint to most pipeline materials equally effectively to prevent axial movement due to the internal pressure in the pipeline. This makes them particularly suitable for transitions between grey cast iron and PE when repairing or rehabilitating pipelines. The convenience of UltraGrip is further enhanced by its wide tolerance range of up to 44mm, which simplifies stockholding and installation. In appropriate cases, pipes of different materials and diameters can be joined by a single UltraGrip coupling. Extended sleeve length makes the couplings easy to position when site conditions are difficult, and grippers remain visible after installation so that the end load restraint can be confirmed. Both products are protected against corrosion and handling damage by a coating of Rilsan Nylon 11, which meets WIS 4-52-01 (Part 1) performance standards. Nuts and bolts are coated with PTFE Sheraplex in accordance with WIS 4-52-03. Viking Johnson’s UltraGrip pipe coupling p

Spindo – Indonesia marketing@spindo.co.id www.spindo.com

Viking Johnson – UK info@vikingjohnson.com • www.vikingjohnson.com

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January 2008 Tube Products International