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.
KGW-29105 Complete system with evacuated tube incl. single-channel gas-control-unit SL 1 without LN2 container. Type T-G50 FV
KGW-29300 Complete system with vacuum pump for cold gas tube, cold gas hose with KF NW 40 flange, incl. single-channel temperature-control-unit SC5 with USB interface converter and without LN2 container. Type TG-LKF 63/50 KGW-29400 Complete 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. Type TG-LKF-H 63/50
KGW-29500 Complete 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 USB interface converter, with frame, with vacuum insulated reaction vessel 2 liter with J-valve outlet, lid for the reaction vessel and without LN2 container. Type TG-RD 63/50
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KGW-29115