VELP UDK 129 Kjeldahl Distillation Unit

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

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

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

TECHNICAL DATA

STRUCTURE	Corrosion-resistant technopolymer
DISPLAY	LCD display
ANALYSIS TIME	5 minutes for 100 ml of distillate
MEASURING RANGE	0.04 - 220 mg N
REPRODUCIBILITY (RSD)	≤ 1 %
RECOVERY	≥ 99.5 %
DETECTION LIMIT (LOD)	> 0.015 mg N
SODIUM HYDROXIDE ADDITION	Automatic
SELECTABLE DISTILLATION TIME	Yes
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 15.2x30.7x16.4 in
WEIGHT	25 kg 55 lb

Brochures & Leaflets

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

UDK Series Automatic Kjeldahl Distillation Systems - Brochure [EN]
Analytical Instruments - Line Brochure [EN]
Product Portfolio - Brochure [EN]
Valuable Information On Kjeldahl Method

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

VELP Distillation Units Comparison Table
VELP Test Tubes Comparison Table

Application notes

Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!

E-book - Barley and Feed: N/Protein Determination and Fiber Determination
E-book - Kjeldahl and Dumas Method Comparison: N/Protein Determination in Feed
Alcohol Determination in Beer
Alcoholic Strenght in Spirit Drinks
Alcoholic Strength in Cream liqueur
Alcoholic Strength in Wine
Casein Determination in Milk - Kjeldahl method
Characterisation of different nitrogen forms in liquid fertilizers
Determination of Low Sulphur Dioxide content according to modified Monier-Williams method
N/Ammonia Determination in Fertilizers - Kjeldahl Method
N/Ammonia Determination in Water - Kjeldahl Method
N/Protein Determination in Barley - Dumas vs Kjeldahl Method
N/Protein Determination in Cereals - Kjeldahl method
N/Protein Determination in Cheese - Kjeldahl method
N/Protein Determination in Feed - Kjeldahl method
N/Protein Determination in Fishmeal - Dumas and Kjeldahl method comparison
N/Protein Determination in Liquid Fertilizers - Dumas vs Kjeldahl Method
N/Protein Determination in Meat - Kjeldahl method
N/Protein Determination in Milk - Kjeldahl method
N/Protein Determination in Milk Powder - Kjeldahl method
N/Protein Determination in Nuts - Kjeldahl method
N/Protein Determination in Probiotic Drinks - Kjeldahl method
N/Protein Determination in Rapeseed - Dumas vs Kjeldahl Method
N/Protein Determination in Soybean - Kjeldahl method
Nitrogen and Protein Determination in Commercial Whole Liquid Milk - Dumas vs Kjeldahl Method
Nitrogen and Protein Determination in Insect Flour: Kjeldahl and Dumas comparison
Nitrogen Determination in Engine Oil - Kjeldahl method
Nitrogen/Protein Determination in Pasta
Phenols Determination in Drinking Water and Industrial Wastes
Sulphites Determination in Dried Apricots
TKN Determination in Water and Wastewater
Total Nitrogen determination in Urea – Dumas vs Kjeldahl Method
TVBN Determination in Fish (UDK 129)
Whey Protein Determination in Milk

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

CE Declaration of Conformity VELP Scientifica UDK Kjeldahl Distillation Units & AutoKjel
UK Declaration of Conformity VELP Scientifica UDK Kjeldahl Distillation Units & AutoKjel
CB Certificate VELP Scientifica UDK Kjeldahl Distillation Units & AutoKjel
cNEMKOus VELP Scientifica UDK Kjeldahl Distillation Units & AutoKjel