Chronicle
As a subsidiary of GEA Wiegand, we both share the same roots. The most significant milestones on our road to success are summarised below: 1908 Wilhelm Wiegand obtains the patent for a multi-effect circulation evaporator
1920 Apparatebau GmbH Wilhelm Wiegand is established in Merseburg (Germany)
1930 Opening of the Jet Pump and Jet Equipment Department
1948 Re-establishment of Wiegand Apparatebau GmbH in Karlsruhe (Germany)
1951 Sale of the first porcelain steam jet vacuum pump
1957 Building of our own Research & Development Centre in Karlsruhe
1961 First jet scrubbing plant for the suction and cleaning of waste gas
1975 Delivery of the 10,000th Wiegand water jet vacuum pump
1975 Construction of the first product steam driven jet pump
1979 30th patent registration since 1948 in the jet pump sector in 37 countries
1984 Entry into the GEA Group
1988 Testing of the 30,000th jet pump in our R+D centre
1994 Certification according to DIN ISO 9001
1996 Modernisation of the Research and Development Centre
1999 GEA Jet Pumps GmbH is established
2001 Delivery of vacuum plants for the largest polyester factory in the world
2007 Delivery of the vacuum system for the largest refinery worldwide

Wilhelm Wiegand (1881-1951)
100 years of Wiegand technology
In 1908 Wilhelm Wiegand obtained a patent for a multi-effect circulation evaporator and founded Apparatebau GmbH Wilhelm Wiegand in Merseburg in 1920. Dr. Joachim Wiegand (1908-1987), the founder’s eldest son, established the new Wiegand Apparatebau GmbH in Karlsruhe in 1948.