In railway engineering, our couplings are used, for example, for power supply, air-conditioning systems, for cooling transformers and rectifiers, and in hydraulic or pneumatic brake systems. In shipbuilding, our mono-couplings provide detachable connections for water, hydraulic and pneumatic lines. For many years, our docking systems have been successfully used for simultaneous loading and unloading of cross channel ferries with operating fluids such as fuel, water etc. In cars, our mono-couplings connect , for example, the hydraulic lines for soft-top roofs. They also allow for safe refuelling with alternative fuels such as gas and liquid hydrogen, or facilitate the installation and service of fluid systems. This includes engine cooling, heating and air-conditioning systems as well as brake systems.