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Cryogenic Freezing

cryogenic_freezing
KALTGAS is a tempering system that utilizes the very low temperature of liquid nitrogen as a cooling agent. The jet vaporizes the liquid nitrogen in a cryogenic container, producing a steady cryogenic gas flow. The LN2 vaporizer jet can be adjusted to minimize liquid nitrogen consumption and to adjust both the cooling rate and the gas flow.The cryogenic gas flow is then piped through a vacuum insulated flexible metal line to the object to be cooled.

A KALTGAS system needs only a few minutes to produce a cold gas flow with a temperature as low as -180°C (-292°F). In most cases, this KALTGAS system is only used to produce a cold gas flow. The volume of the gas flow is adjusted with the safety control unit. Since the controlled system operates without a heat exchanger, it is not possible to maintain precise temperature stability

To achieve good temperature and control stability, a post-heating module or heat exchanger is installed. This module can be connected directly to the line, or installed in a chamber adjacent to the cold gas flow. The heat exchanger is designed to heat the cold gas flow to the desired temperature. The final product, a clearly quantified gas flow exiting the heat exchanger at a defined temperature, is ready for use as a cooling agent. With an optimized temperature controller a temperature stability of ±0.1°C can be achieved. With the standard safety control unit, a temperature stability of better than ±0.2°C can be achieved at a steady state.

Apart from the high cooling speed, another advantage of KALTGAS systems is their modular design. By swapping out individual modules such as the N2 gas line, the LN2 vaporizer or the heater, it is possible to change the cooling speed, LN2 consumption as well as the application. The basic modules, including the LN2 container, the vacuum pump and the safety control unit, remain unchanged.

TG50 Kaltgas Cryogenic System, Vacuum Pump, SC2 Control Unit Cryogenic cooling system for small cooling applications to -170°C (-335° F) The TG 50 KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, vacuum insulated N2 gas line, a PT100 temperature sensor and a vacuum pump with accessories.
TG50-FV Kaltgas Cryogenic System, Evacuated Tube, SC2 Control Unit Cryogenic cooling system for small cooling applications to -170°C (-335° F) The TG 50 KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, vacuum insulated N2 gas line, a PT100 temperature sensor. No vacuum pump.
TG-DD Kaltgas Cryogenic System with Vacuum Pump  Cryogenic cooling system for continuous cooling applications from +120°C to -160°C This KALTGAS system is designed for continuous cooling in a temperature range from -160°C to +120°C, in applications where a gas flow is directed at the sample to be cooled.
TGM10 Kaltgas Cryogenic System, Vacuum Insulated Tube 5 liter LN2 Container For cryogenic cooling of small specimens. The TGM KALTGAS system includes an output controller with current value display, a 23AL-NF60 Dewar flask, an NW 60 siphon head with an LN2vaporizer, a vacuum insulated N2 glass tube with swivel and protective cover, and an integrated Ni Cr Ni temperature sensor.
TGL63-50 Kaltgas Cryogenic System, Vacuum Pump,SC2 Control Unit The TGL63-50 KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories.
TG63-100 Kaltgas Cryogenic System, Vacuum Pump,SC2 Control Unit The TGL63-100 KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories.
TGL63-50KF Kaltgas Cryogenic System with Vacuum Pump,SC2 Control Unit The TGL63-50KF system includes c Systea temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories
TGDD Kaltgas System Vacuum Pump The TGDD KALTGAS system includes an vaporizer Dewar with an LN2 vaporizer (jet), an N2 post heating unit, an integrated min/max sensor for LN2 refilling, a temperature controller with current value/set point display, a safety controller, an evacuateable N2 gas line with an integrated post heating module (heater, low voltage design), an integrated PT100 temperature sensor, a vacuum pump with accessories, and a conventionally insulatedLN2 line withLN2 tank siphon and LN2 solenoid valve. TGL63-100KF Kaltgas Cryogenic System, Vacuum Pump,SC2 Control Unit The TGL63-100KF KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories
TGRD40-50 Kaltgas Cryogenic System, 2 liter Reaction Vessel, Frame, Lid In a reaction vessel, 1.5 liters of methanol are cooled from +20°C to -95°C in approx. 50 minutes. During the cooling phase, about 5 to 6 liters of LN2 are consumed. To maintain the methanol at -95°C, the reactor needs only about 1.2 liters of LN2 per hour. TGL63-50KKK Kaltgas Cryogenic System, Vacuum Pump,SC2 Control Unit The TGL63-50KKK system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories
TGRID40-50 Kaltgas Cryogenic System, 2 liter Reaction Vessel, Frame, Lid, SC2 Control Unit In a reaction vessel, 1.5 liters of methanol are cooled from +20°C to -95°C in approx. 50 minutes. During the cooling phase, about 5 to 6 liters of LN2 are consumed. To maintain the methanol at -95°C, the reactor needs only about 1.2 liters of LN2 per hour. TGHD40-50 Kaltgas Cryogenic System, Vacuum Pump,SC2 Control Unit The TGDH 40/50 KALTGAS system includes a temperature controller with current value/set point display, a safety controller, a KF-NW 50 siphon with an LN2 vaporizer (jet), a flexible, evacuateable N2 gas line with an integrated post heating module (heater), a PT100 temperature sensor and a vacuum pump with accessories.
SC2 Single Channel Control Unit
GR1 Gas Regulator Unit
 
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