TPi July 2015

products & developments

Safety tubes and system efficiency Wieland Thermal Solutions presented its GEWA-safe double-wall safety tubes at ACHEMA in Frankfurt in June.

Depending on the desired application, the tubes are available with either smooth or profiled surface in copper, cupronickel and stainless steel. The safety tubes are used, for example, in the pre-heating of fuel gas for gas turbines, for protection against

The GEWA-safe tubes feature defined leakage paths between the inner and outer tube for the reliable separation of fluids, eg reactive, hazardous or explosive fluids, without the need for additional circulation (closed loop intermediate fluid). This ensures system availability, efficiency and safety, as damage to inner or outer tube is immediately recognisable and can be fixed as part of regularly scheduled maintenance. The thermal contact of the two tubes results in outstanding heat transfer without additional heat transfer fluid. GEWA-safe tubes enable the manufacture of very compact heat exchangers, reducing material costs and fill levels.

Low-finned tubes

Wieland also presented current solutions for system efficiency increase in the oil, gas and petrochemical industries, as well as in the power generation industries. GEWA-PB tubes enable a compact design of heat exchanger. The surface structure of the tube enhances the effect of nucleate boiling, intensifying the evaporation process. For different requirements regarding thermal conductivity, mechanical properties and corrosion resistance in the oil and gas processing industries, Wieland Thermal Solutions also presented at ACHEMA its portfolio of low-finned tubes in a wide range of materials. GEWA-K, GEWA-KS, and Trufin S/T and Turbo-Chil tubes are manufactured in the materials carbon steel, stainless steel and titanium. They are mainly used in coolers, preheaters, condensers and evaporators to achieve savings in both equipment and overall plant design.

environmentally harmful and toxic substances, for the isolation of heat transfer oil in transformer stations, and for drinking water protection according to DIN EN 1717 in heat-pump systems. They are also used in so-called safety heat exchangers for high standards regarding system safety in chemical processes, for example in the production of polysilicon.

GEWA-safe double-wall safety tubes

Wieland-Werke AG – Germany info@wieland.de www.wieland.de

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July 2015 Tube Products International