• 115 V / 50-60 Hz (Power input: 1700 W)
• Entry-level and reliable solution for safe distillations
• Programmable sodium hydroxide addition
• Bright 7” LCD display and easy-to-use menu guide
• Works with innovative TEMS technology 

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

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 

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 a 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 

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

The bright LCD display and easy-to-use menu guide the operator in setting the instrument's 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

UDK 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

The Kjeldahl analysis is a primary method for the determination of Nitrogen in Quality Control, especially in pharmaceutical laboratories. UDK 159 and UDK 169 are fully compliant with the FDA's Code of Federal Regulations Title 21 Part 11 which defines the requirements for using electronic records and electronic signatures on computerized systems.