Welcome Gebr. Rieger is a medium-sized company with long tradition. For more than 100 years, Rieger supplies products made of aluminium and stailess steel to customers whole over the world. Our aluminium foundry produces high-grade castings applied as well in the automobile industry as in mechanical engineering. The machine factory successfully competes in the areas of tap pumps and valve technology. Our products - bar pillars, aseptic and hygienic single seat valves, mix proof valves,sampling valves, safety valves, overflow valves, valve clusters - which prove their worth in long duration utilisation, are primarily used in the chemical, pharmaceutical, beverage and food industries.