Analytical instruments - VELP Scientifica
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Analytical instruments - VELP Scientifica
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UDK 149 Automatic Kjeldahl Distillation Unit
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VELP Inc. U.S.
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UDK 149 Automatic Kjeldahl Distillation Unit

Fully automatic Kjeldahl distillation unit, with external titrator connection, for your analyses concerning different applications such as determining ammoniacal nitrogen, protein determination, nitrogen content (Kjeldahl or direct alkaline distillation), nitric nitrogen (after reduction/Devarda), phenols, volatile acids, cyanides and alcohol content.

UDK 149 offers an upgrade pathway to combine distillation and titration.

Automated Operation

  • Programmable boric acid, water, sodium hydroxide addition and distillation time
  • Automatic processing in combination with a variety of titrators
  • Selectable steam generation output level 10% – 100%
  • Auto removal of residues from titrator & sample tube

High Tech

  • 3.5 inch color touch screen
  • Library of 20 customizable methods
  • Choice of 6 languages
  • Mouse & printer connections
  • No loss of nitrogen: distillate temperature stays below threshold
  • Accurate dosing of reagents with high precision pumps

Versatile Data Handling

  • Powerful archiving features
  • Data exporting via USB to pen drive or PC in .xls format
  • Data manipulation software can be user preferred

Outstanding Reliability

  • Maintenance-free, resistant, patented steam generator
  • Patented titanium condenser for unmatched performance
  • Durable technopolymer splash head
  • Chemically-resistant technopolymer housing

Operator Safety

  • Lever operation simplifies tube insertion / removal (all sizes)
  • Protection screen for distillation chamber
  • Drip tray collects splashes
  • Zero pressure steam generator

Ecology & Standards

  • Performs to AOAC, EPA, DIN and ISO standards
  • Incorporates TEMS™ technology*
    Automated water supply control reduces consumption

    *Saving Time, Energy, Money & Space



UDK 149, the most flexible
The UDK 149 is the extremely innovative, intuitive and simple solution for Kjeldahl nitrogen/protein determination at the same time. It offers the highest level reliability and accuracy, and is equipped with the most advanced safety features. Designed with premium materials, UDK 149 will provide precise analytixcal determination on many samples.

Product Code

  Description Power Supply Code
UDK 149 230 V / 50-60 Hz F30200140


A00001080   10001106   10000247   10004936   40001798  
A00001080Test tube ø 42x300 mm
10001106Collecting flask 250 ml
10000247Pincer for test tubes
10004936Touch pen
40001798Protective film for touch screen


A00001083   A00001088   A00000144   A00000146   A00000185  
A00001083Test tube Ø 80x300 mm for alcohol determination
A00001088Test tube Ø 48x260 mm
A00000144Test tube Ø 42x300 mm 250 ml, 3 pcs/box
A00000146Test tube Ø 26x300 mm 100 ml, 6 pcs/box
A00000185Test tube Ø 50x300mm, 400ml
A00000206   A00000043   A00001009   A00000195   A00000208  
A00000206Spacer for test tube Ø 48x260 mm
A00000043Test tube connection Ø 26 mm, Ø 48 mm and 500 ml Kjeldahl balloon
A00000195Printer Adapter USB-RS232
A00000208Connection kit for Mettler titrator DL50, DL53, DL55, DL58 (TTL)
A00000209   A00000210   A00000211   A00000212   A00000213  
A00000209Connection kit for Metrohm titrator (TTL)
A00000210Connection kit for Metrohm titrator (RS232)
A00000211Connection kit for Schott titrator (RS232)
A00000212Connection kit for Mettler titrator DL15, DL22, DL28, T50, T70, T90, G20 (TTL)
A00000213Connection kit for KEM (Kyoto) titrators AT 500, 510 (RS232)
A00000214   A00000082   A00000285   A00000264   A00000265  
A00000214Connection kit for Mettler titrator T50, T70, T90, G20 (RS232)
A00000082Kjeldahl balloon, 500ml
A00000285Alcoholic strenght kit
A00000264H3BO3 tank (5-liter) with caps
A00000265NaOH tank (10-liter) with caps
A00000266   A00000267   R30800194   A00000215   A00000203  
A00000266H2O tank (20-liter) with caps
A00000267Residues tank (20-liter) with caps
R30800194Titrator TITROLINE 5000
A00000215Waterproof mouse
A00000203IQ/OQ/PQ UDK 149 Manual
A00000316Vreceiver - Boric Acid Powder with Indicator for colorimetric titration