Low Cost Solvent Evaporator for Kuderna-Danish Flasks

Catalog #

The mechanical thermostat 5 position S-EVAP-KD (Cat# 12037) can evaporate up to 5 samples at once with a capacity of up to 500 ml at each sample position.  Glassware sets can be purchased for individual solvent collection (Cat# GS2153), or central solvent collection (Cat#GS2153-C with Cat# GS2156-C5).

 Smaller glassware accommodating up to 250 ml can be purchased for individual solvent collection (Cat# GS2152), or central solvent collection (Cat# GS2152-C with Cat# GS2156-C5).  Smaller glassware is accommodated with the use adapter rings (Cat# XA2284).  



  • Solvent recovery: recover up to 97% of starting solvent volume with individual or central solvent collection
  • Conserves valuable bench space: all samples are arranged in a circle
  • Easy sample access: the instrument rotates allowing all samples to be accessed from the front
  • Fewer connections: one water supply line in, one drain line out 
  • Protects delicate samples: Organomation vacuum insulated concentrator tubes keep delicate samples safe
  • Gentle concentration: water bath is gentler than jacketed concentration tubes in traditional KD set-up


Standard Features:

  • Condenser holder assembly for solvent recovery condensers
  • Flow meter and rigid supply tube for condenser water supply
  • Condenser water supply/drain manifold connects  to a bench cold-water tap, or a refrigerated water chiller for improved control of condenser temperature and water conservation
  • Parallel water supply/drain manifolds with quick disconnect tube fittings
  • Bath temperature range 30°C - 100°C
  • Evaporate solvents with boiling points up to 65°C
  • Mechanical thermostat temperature control +/- 2°C


Optional Features:

  • Intrinsically safe type Z purged bath (Option Code -Z)
  • 240V wiring and plug (Option Code -2)
  • Reduced height system, 32 inches tall for KD flasks/deep bath
  • Digital electronic temperature control +/- .5°C (Option Code -CB)


To learn more about this unit’s available configurations and optional features, please click here.