UDK 129 Kjeldahl Distillation Unit

Entry-level Kjeldahl distillation unit 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 129 far exceeds expectations from an entry-level distillation unit:

Automated Operation

System runs after setting sodium hydroxide addition and distillation time

High Tech

No loss of nitrogen: distillate temperature stays below threshold
Accurate dosing of reagents with high precision pumps

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

Recommendations

VELP manufactures Kjeldahl Consumables designed for accurate and reliable analysis
A technical comparison table may assist in product selection

Product Code

Description	Power Supply	Code
UDK 129	230 V / 50 – 60 Hz	F30200120
UDK 129	115 V / 50 – 60 Hz	F30210120

Including



A00001080Test tube Ø 42×300 mm	10001106Collecting flask 250 ml	10000247Pincer for test tubes

Accessories



A00001083Test tube Ø 80×300 mm for alcohol determination	A00001088Test tube Ø 48×260 mm	A00000144Test tube Ø 42×300 mm 250 ml, 3 pcs/box	A00000146Test tube Ø 26×300 mm 100 ml, 6 pcs/box	A00000185Test tube Ø 50x300mm, 400ml



A00000206Spacer for test tube Ø 48×260 mm	A00000043Test tube connection Ø 26 mm, Ø 48 mm and 500 ml Kjeldahl balloon	A00000205IQ/OQ UDK 129 Manual	A00000082Kjeldahl balloon, 500ml	A00000285Alcoholic strength kit



A00000265NaOH tank (10-liter) with caps	A00000266H2O tank (20-liter) with caps	A00000316Vreceiver – Boric Acid Powder with Indicator for colorimetric titration

GENERAL FEATURES
Structure:	Corrosion-resistant technopolymer
Display:	LCD
Time related to start for Devarda alloy analysis:	0 – 99 min
Protocol library:	1 customizable method
Reproducibility (RSD):	≤ 1 %
Recovery:	≥ 99.5 % at nitrogen levels between 1 and 200 mg N
Detection Limit:	≥ 0.1 mg N
Power:	2100 W (1700 W at 115V)
Weight:	25 kg / 55 lb
Dimensions (WxHxD):	385x780x416 mm (15.2×30.7×16.4 in)

PERFORMANCE
Distillation time:	5 minutes to collect 100 ml of distillate
Sodium hydroxide addition:	automatic
Sodium hydroxide volume:	0 – 100 ml
Tap water consumption:	from 0,5 l/min at 15°C – from 1 l/min at 30°C

Entry-level Kjeldahl Distillation Unit

The Kjeldahl distillation unit UDK 129 runs automatically, after setting sodium hydroxide addition and distillation time using the LCD display in order to get reliable and accurate results. The high-precision pumps ensure constant accurate dosing of reagents and the cooling water is automatically stopped during pauses, thus cutting down on its consumption.

Technologically advanced, the distillation unit UDK 129 includes many features that ensure efficient and reliable distillation, far beyond expectations of an ordinary entry level unit.

Kjeldahl Distillation Units – TEMS™ Technology

UDK Kjeldahl distillation units work with the innovative TEMS™ benefits, for huge savings.

Time Saving – Fast and frequent analyses; no heating delay between runs
Energy Saving – Cooling water consumption starting from only 0.5 l/min; excellent insulation
Money Saving – Cost reduction is substantial, in line with reduced power consumption
Space Saving – The extremely compact footprint saves useful laboratory bench space

Kjeldahl Distillation Units – Exclusive Titanium Condenser

VELP Scientifica has developed and patented the innovative titanium condenser able to ensure high performance and considerable water savings (from 0.5 l/min).
The graph shows the high efficiency of the titanium condenser compared to the traditional glass one available on the market. The titanium condenser ensures that distillate temperature always remains below the safe threshold value (35 °C), as indicated in the Kjeldahl method.

Kjeldahl Distillation Units – Patented Steam Generator

The patented steam generator used by UDK Kjeldahl Distillation Units offers unique performance, being a patented solution

Rapid (p)re-heating time
Total safety: no internal pressure
Low thermal dispersion
Great repeatability
High performance and resistance
Maintenance-free
Safety-thermostat
Works with deionized water

Kjeldahl Distillation Units – Maximum Safety Standard

UDK 129 Kjeldahl distillation unit ensures high safety standards because of the several safety features

Steam Generator without Pressure
2. Lever with Sensor
3. Protective Door with Sensor
4. Cooling Water Flow-Rate Detector
5. Test Tube Sensor
6. Drip Tray
7. Service Door (+ Electrical Shutdown)
8. Colored Inlet Reagent Tubes

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 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. The Vreceiver^TM is suitable for all distillation units especially with VELP automatic UDK series (159 and 169) with integrated colorimetric titrator.