Profile: Lauterbach Verfahrenstechnik offers software and engineering services for pressure vessel & heat exchanger design. We develop practical engineering software for refinery and plant design. Our software covers the fields of process engineering and mechanical engineering in pressure vessel design & piping. We offer more than 400 progras bundled in packages. We have software solution for almost every needed calculation. We also develop special software for customers' specific use by using modular technology. Koloss© columns statics software delivers a verification of stability according to AD 2000 for columns, vertical vessels, vertical apparatuses, cylinders, chimneys and steel constructions. The program considers loads due to internals, externals, wind loads, seismic loads, different materials, differences in wall thickness and section moduli. It is used by many different companies. WTS is a design/rating and simulation program for shell-and-tube heat exchangers for gases & liquids as well as condensing other pure substances. There are additional modules to calculate condensation processes for wet gases. It features thermal & hydraulic calculation of shell-and-tube heat exchangers for single-phase media, for condensing steam and other pure components. It also features multi-pass shell design, detailed tube sheet generation, vibration analysis, characterization of performance by multidimensional parameter studies and data link to MS-Excel in user-defined specification sheets.