Kryoventile

23.07.2019

The function of a control and shut-off valve becomes very demanding when the temperature falls within the absolute zero range.

The function of a control and shut-off valve becomes very demanding when the temperature falls within the absolute zero range. In these extremely cold temperature ranges, each valve of the application and the fluid must be designed and optimized accordingly. In over 35 years, WEKA has acquired the appropriate knowledge and experience.

A cryogenic valve is one of the few elements that connects the cold pipeline with the liquefied gas with the environment at room temperature.

This can lead to a temperature difference of up to 300 ° C between the pipeline and the surrounding area.

This temperature difference generates a heat flow from the warm to the cold, which reduces the efficiency of a plant and in extreme cases jeopardizes the functioning of the valve when it comes to ice formation at the warm end.

Therefore, the challenge is to reduce the thermal resistance between the hot and cold area, ie between the valve top and the valve connections, as much as possible. WEKA cryogenic valves are characterized by a very low thermal resistance and thus contribute to the efficiency of a system.

WEKA valves have been widely used in helium and hydrogen liquefiers as well as coolers of the industry's most important technology leaders since the 1970s. They are also represented in most plasma physics research facilities worldwide.

The infrastructure for refueling the space missiles of the European Value Space Program also uses WEKA valves for helium, hydrogen, oxygen and nitrogen.

A range of needle valves for air gases completes the range for applications in air separation plants.

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