Cryogenic Cooling

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.

cryogenic cooling KGW-T-G50 Kaltgas Cryogenic System, Vacuum Pump, SL1 Control Unit Complete system with vacuum pump for cold gas tube, including single channel gas control unit SL1; no USB interface nor LN2 container.
KGW-T-G50 FV Kaltgas Cryogenic System, Evacuated Tube, SL1 Control Unit Complete system cold gas tube, including single channel gas control unit SL 1 no USB interface nor LN2 container.

 

kaltgas KGW-TG-RD 63-50 Kaltgas Cryogenic System Complete Kaltgas system with vacuum pump for cold gas hose, cold gas hose with KF NW 25 flange, incl. single-channel temperature-control-unit SC 5 with interface �converter to USB, with frame, with vacuum insulated reaction vessel 2 liter with J-valve

 

KGW-TG-RID 63-50 Complete Cryogenic System Complete Kaltgas system with vacuum pump for cold gas hose, cold gas hose with DN 25 flange, incl. single-channel temperature-control-unit SC 5 with interface � converter to USB, with frame, with vacuum insulated three wall reaction vessel 2 liter with DN 25 connector, and lid for the reaction vessel, without LN2 container.

KGW-TG-KKK 63-50 Complete Kaltgas system (without any chamber), cold tube with KF NW 40 flange, a vacuum pump for cold gas tube, incl. single-channel temperature-control-unit SC5 with interface � converter to USB and without LN2 container.

KGW-TG-LKF-H 63-50 Complete Kaltgas system with vacuum pump for cold gas tube, cold gas hose with KF NW 40 flange, incl. single-channel temperature-control-unit SC5 with interface �converter up to USB and without LN2 container.

cooling system KGW-TG-L 63-50 Kaltgas Cryogenic System, Vacuum Pump,SC3 Control Unit The TG-L63-50 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.

KGW-TG-LKF 63-50 Kaltgas Cryogenic System, Vacuum Pump,SC3 Control Unit The TGL63-50KF 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 TGLKF63-100 Kaltgas Cryogenic System, Vacuum Pump,SC3 Control Unit