Vacuum concentrators

Vacuum concentration makes many demands on the supporting vacuum system, both in terms of the ultimate vacuum and in the selection of accessories. The pump needs high resistance to chemicals, as well as good tolerance of condensates. The type of solvents in use and the nature of the samples both have a strong influence on the ultimate vacuum needed and the appropriate type of process controls. Determining the optimum heat transfer into the sample material is also vital to avoid the need to upgrade your pump later.

Process requirements

  • optimum heat transmission to the sample vessels
  • medium to high vacuum requirements
  • fast and highly sensitive vacuum control with samples that tend to foam
  • control of condensate and droplet precipitation between the pump and concentrator

Pump requirements

  • great resistance to chemicals
  • ultimate vacuum as much as 7 mbar or 1.5 mbar
  • sufficient volume flow rate (2 m³/h and more)
  • good tolerance of condensate
  • inclusion of a vacuum inlet separator (AK) made of glass to protect the pump from particles and droplets of liquid
  • emission condenser for solvent recovery and to minimize environmental and laboratory air pollution