Our experience in delivering control, safety relief and isolation valves for critical environments goes back more than 150 years when the business was founded by Albert Sempell in Mönchengladbach, Germany. The business is now based at a 70,000 m² state-of- the-art plant in Korschenbroich, Germany, dedicated to the production of valves used in conventional and nuclear power generation, as well as power applications in all process industries.