TPi July 2008

f i t t ings feature on . . .

New butterfly valve extends range Saint-Gobain Pipelines has extended its range of valves with the launch of the PAM Eurostop butterfly valve in DN150 to DN2000. Designed primarily as an isolation valve, the PAM Eurostop can also, in certain conditions, be used for flow control. Describing the key benefits of the PAM Eurostop, product manager Richard Morecroft said, “For larger diameter pipelines, butterfly valves offer both cost savings and installation benefits when compared with gate valves. On sizes above DN300 the use of butterfly valves can help reduce the overall project cost. They are also smaller, lighter to handle and easy to install.” Unlike gate valves, butterfly valves operate within the pipe, so no additional cover depth to accommodate the valve is required. The PAM Eurostop is a double-flanged valve with manual or actuator operated options. Its double eccentric disc, with the centre of rotation of the valve offset in relation to the gasket line and pipeline axis, results in lower torque, leading to less wear and longer life. The hydrodynamic design of the disc also ensures minimal loss of pressure when the valve is open. An automatic gasket ensures a high performance, leak free seal while bi- directional sealing means that the valve can be installed in either orientation. The body and disc of the PAM Eurostop butterfly valves are made from ductile iron with shafts, pins and screws manufactured from high performance stainless steel. Third party accredited to the stringent EN 1074-2, the Saint-Gobain Pipelines PAM Eurostop range is tested to an endurance level of 2,500 cycles. Saint-Gobain Pipelines has also launched a set of bound datasheets and a brochure featuring the new valves. a comprehensive range of valves, couplings and flange adaptors, suitable for water and sewer applications. Thirteen datasheets cover

Self-aligning pipe couplings Tuf-Lok ring grip pipe couplings are low cost, heavy-duty self-aligning and self- grounded pipe couplings suitable for most applications where pipe ends need to be connected. The pipe couplings install quickly and easily, reducing installation costs. Reinstallation is also fast and easy, making the couplings suitable for applications where assembly and disassembly are required.

With the Tuf-Lok ring grip pipe couplings, the pipe ends do not require machining or grooving, and do not become marred or damaged when making a connection. Pipeline integrity and reuse of the pipe is not compromised. The couplings’ toughness is important for many applications, including those with high dynamic loads or applications where the pipeline integrity is extremely important. The Tuf-Lok pipe couplings can cope with vibration and excessive pipe movement.

Tuf-Lok self-aligning couplings S S

A special design feature built into the gasket of the couplings allows them to handle both high pressure and full vacuum pressure conditions. Even high external pressure conditions are accommodated, so the Tuf-Lok pipe couplings are leak proof from the outside as well as the inside. The leak proof connection is maintained even when the pipe couplings are completely submerged under water – a feature not always achievable with other pipe couplings. A cost saving feature of the Tuf-Lok ring grip pipe couplings is that they can be installed on almost any kind of metal pipe, irrespective of the wall thickness. They can also be used on mild steel, stainless steel, aluminium and most other thick or thin wall pipe.

Tuf-Lok International – USA info@tuflok.com • www.tuflok.com

Chinese stainless steel products Wenzhou Tiancheng Stainless Steel Manufacturing Co is a manufacturer of stainless steel products, including stainless steel seamless pipe, welded pipe, fittings and valves. The company’s products are widely used in the fields of food processing, medicine, petro-chemical, chemical, machine building, power, automotive industry, ship building, navigation, aviation and aerospace industries.

Products include gate valves, non-return valves, air valves and fire hydrants.

All valves are supplied in compliance, where applicable, with WRAS requirements and are manufactured in accordance with ISO 9001. Couplings and flange adaptors, also in accordance with ISO 9001, accommodate a wide range of external diameters and pipe materials, from wide tolerance fittings to dedicated products. The new brochure has been produced in English and Italian to support Saint Gobain Pipelines’ sister company in Italy, Saint-Gobain Condotte, which also carries the complete product range. Saint-Gobain Pipelines – UK sales.uk.pipelines@saint-gobain.com www.saint-gobain-pipelines.co.uk

Wenzhou Tiancheng Stainless Steel Manufacturing Co Ltd – China

info@ecnsteel.com www.ecnsteel.com

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July 2008 Tube Products International