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Cryocooler COLDGAS

Cryocooler - COLDGAS - KGW-ISOTHERM Karlsruher Glastechn. Werk Schieder GmbH
Cryocooler - COLDGAS - KGW-ISOTHERM Karlsruher Glastechn. Werk Schieder GmbH
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Description

In order to meet the requirements for fast cooling speeds and low temperatures, it is sometimes necessary to switch from conventional thermostat cooling to liquid gas cooling. KGWISOTHERM has developed a new KALTGAS application for this application. Here, a test chamber is cooled using cryogenic nitrogen gas, thus enabling rapid cooling speeds. KALTGAS is a temperature control system based on the low temperature of liquid nitrogen as a refrigerant. The liquid nitrogen is vaporized in a cryogenic tank by means of a heater (jet). This generates a constant, cryogenic gas flow. By varying the heater (jet), both the cooling capacity and the gas flow volume can be changed, and the LN2 consumption can also be reduced to a minimum by varying the jet output. The cryogenic gas flow is then fed through a vacuum-insulated, flexible metal pipe to a heat exchanger (heater). The heat exchanger has the task of heating the cold gas flow to the desired temperature. This means that a predefined gas flow with a predefined temperature is available as cooling gas at the outlet of the heat exchanger. A KALTGAS system can generate a -170°C cold gas flow within a few minutes. The use of different temperature controllers enables the optimum customized design of a KALTGAS system. Depending on the customer’s requirements, temperature stability of up to +/-0.1°C can be achieved by using an optimized controller. With a standard safety controller (SC5), a temperature stability of less than +/-0.2°C is achieved.

Exhibitions

Meet this supplier at the following exhibition(s):

Forum Labo 2025
Forum Labo 2025

25-27 Mar 2025 Paris (France)

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    LabCon Heidelberg

    17-17 Jul 2025 Heidelberg (Germany)

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.