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. read more