UDK 139 Semi-Automatic Kjeldahl Distillation Unit
UDK 139 semi-automatic distillation for Kjeldahl protein determination, Non-Protein Nitrogen (NPN), volatiles and more. Excellent value-for-money with high reliability and advanced performance.
Description
Safety and reliability for semi-automatic analyses
The UDK 139 is a convenient and reliable solution for safe, semi-automated distillations. The perfect distiller for laboratories looking for precise and reproducible results of Kjeldahl nitrogen TKN, proteins, ammoniacal nitrogen, nitric nitrogen (Devarda), TVBN, sulfites, phenols, volatile acids, cyanides, and alcohol content.
The Kjeldahl distillation unit UDK 139 combines excellent value-for-money with high reliability and advanced performance.
- The semi-automatic process ensures efficient operations
- Programmable water and sodium hydroxide addition
- Selectable steam generation output level 10% – 100%
- Auto removal of residues from sample tube
- Clear and intuitive operations thanks to the Smart User Interface and digital display
- Maximum safety for the operator
- Unmatched flexibility with a wide accessory range
Unrivalled technologies to support your laboratory – Titanium Condenser and Technopolymer Splash Head

- 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 139 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 139 is provided with the most complete set of safety features to ensure maximum operator safety. Sensors monitor tube in place, safety doors, reagent levels, cooling water flow-rate and more.
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 software ensuring ease-of-use and data management at its best

Bright 7″ color touch screen and easy-to-use software guide the operator step-by-step and provide fast feedback when setting the parameters and the analysis status.
Grant access to instruments and data only to specific people in your organization thanks to the user management feature.
- 3 levels of authorizations and permissions according to GLP
- Clear readability of analysis time
- Intuitive menu and sub-menu navigation
- Dedicated service menu
Streamlined processes and enhanced service support with VELP Ermes Cloud Platform

UDK 139 features the unique connection option via Wi-Fi or LAN to VELP Ermes Cloud Platform, the Smart Lab solution allowing you to reduce routine operations thanks to the real-time monitoring of your Kjeldahl analysis wherever you are, at any time.
Just by using a PC, a Smartphone or a Tablet you can manage multiple instruments, consumables, workflows, analysis data, and instrument working conditions.
Immediate event and alarm notifications inform you about analyses and the remote analysis interruption guarantees total control of your laboratory processes.
Grant access to instruments and data only to specific people in your organization and decide whether you like to share information directly with VELP or with authorized service centers to benefit from a reduced diagnostic time and enhanced service support.
Nitrogen determination at high throughput gets to a new level with VELP Ermes Cloud Platform.
TEMS™ Technology

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
Included
- A00001080 Test Tube Ø 42×300 mm
- 10001106 Collecting flask 250 ml
- 10000247 Pincer for test tubes
- Inlet tube, discharge tube and protective film for touch screen are supplied with the instrument