UDK 129 Kjeldahl Distillation Unit

UDK 129 Kjeldahl Distillation Unit

Entry-level distillation for?Kjeldahl protein determination, Non-Protein Nitrogen (NPN), volatiles and more. Simple and reliable solution with unique features.

Ease of use and safety for your analyses

The UDK 129 is an entry-level and?reliable solution for safe distillations.?The most suitable distiller for laboratories?looking for a simple but efficient instrument for Kjeldahl nitrogen TKN, proteins, ammoniacal nitrogen, nitric nitrogen (Devarda), TVBN, sulfites, phenols, volatile acids, cyanides, and alcohol content.

The Kjeldahl distillation unit UDK 129 includes features that ensure efficient and reliable distillation, far beyond the expectations of an ordinary entry-level unit.

  • Programmable?sodium hydroxide addition
  • High-precision pump?ensuring?constant accurate dosing of the reagent
  • Intuitive interface for easy analysis settings
  • Maximum safety?for the operator
  • Unmatched flexibility with a wide accessory range

Unrivalled technologies to support your laboratory – Titanium Condenser and Technopolymer Splash Head

The UDK 129 features the unique?VELP?patented titanium condenser?designed for efficient thermal exchange and low water consumption.

The distillate temperature is always kept below the Kjeldahl threshold value (35 ?C), as indicated in?the Kjeldahl method, without nitrogen loss.

  • Reduced water consumption
  • High resistance material with prolonged lifespan
  • Reduced break risks during routine cleaning

The exclusive?VELP?Technopolymer Splash Head?incorporated in the UDK 129 is designed for high throughput providing state-of-the-art durability and resistance.

  • Chemical resistant materials
  • Unmatched lifespan of up to 10,000 analyses
  • Maintenance-free and no risk of breaking

Reliability and safety for your lab

The UDK 129 is provided with the most complete set of safety features to ensure maximum operator safety. Sensors monitor tube in place, safety doors and cooling water flow-rate.

The?VELP Patented Steam Generator?guarantees?safe working conditions working without pressure:

  • Rapid pre-heating time
  • High performance and resistance
  • Maintenance-free
  • Works with deionized water

Intuitive user interface ensuring ease-of-use

Intuitive user interface ensuring ease-of-use

The bright LCD display?and?easy-to-use menu?guide the operator in setting the instrument working conditions, including distillation time and the volume?of sodium hydroxide.

The low-profile button design ensures complete comfort and enables easy process handling.

  • Clear readability of analysis time
  • Intuitive menu and sub-menu navigation
  • Counters for maintenance
  • Dedicated service menu

TEMS? Technology

TEMS? TechnologyUDK Series Kjeldahl distillation units?work with the innovative?TEMS? benefits, for unmatched savings.

Time Saving: rapid heating reduces wasted time
Energy Saving: limited energy consumption thus cutting CO2?emissions
Money Saving: cost reduction for each analysis
Space Saving: the narrow footprint saves valuable laboratory bench space

Vreceiver? boric acid with indicator sealed bags

VELP unique Vreceiver? is a certified formula composed of?Boric Acid powder?and a mixture of?indicators?mentioned by AOAC methods (Bromocresol Green?and?Methyl red) allowing?fast?and?standardized?receiving solution preparation for colorimetric titration.

The receiving solution is prepared in a few minutes facilitating the day by day operations instead of the typical time consuming process using single reagents. The result is a reliable and standardized solution for colorimetric titration.

Optional Accessories


STRUCTURE Corrosion-resistant technopolymer
ANALYSIS TIME 5 minutes for 100 ml of distillate
MEASURING RANGE 0.04 – 220 mg N
RECOVERY ? 99.5 %
DELAY TIME (DEVARDA ALLOY ANALYSIS) 00 sec – 99 min 59 sec
WATER CONSUMPTION From 0,5 L / min to 15?C
From 1 L / min to 30?C
PROTOCOL LIBRARY 1 customizable?method
POWER INPUT 1700 W at 115 V
2200 W at 230 V
DIMENSIONS (WXHXD) 385x780x416 mm
15.2×30.7×16.4 in
WEIGHT 25 kg
55 lb