Valves for cryogenic air separation

Cryogenic air separation is nowadays one of the most proven methods for separating air into its components on an industrial scale. In this process, the ambient air is first drawn in through a filter and compressed. The air is then cooled and unwanted impurities such as dust and carbon dioxide are removed in the absorbers. Through heat exchange and expansion, the air is further cooled down until it reaches a temperature between -170°C and -193°C. The different pressure levels and temperatures make it possible to separate the components of the air according to their state (liquefied or gas) and store them in storage tanks or make them directly available.

Air gases are used as a source of energy, as a component of fuels, as a propellant and as a basic component for chemical reactions. They have many applications in industry, transport, medical research and everyday life. Companies and organisations around the world use air gases in their processes to optimise operations.

Read here more about the production and use of oxygen for the insulation wool production process in a user report. . 

New air separation plants are regularly built or existing plants are overhauled, revised or expanded. Each scenario has specific challenges for which HEROSE offers solutions and provides a comprehensive portfolio of valves and services.

Benefit from our many years of experience in cryogenic technology.

Air compression and cooling

• Safety valve type 06386 and 06388 (pressures up to 50 bar)
• Safety valve type 06850 (pressures up to 250 bar)
• Safety valve type 06370 (liquids up to 16 bar)

Cooling and refrigeration up to liquefaction

• Globe valves: Type 03321, 01321 (sizes up to DN 150)
• Check valves: Type 05418 (sizes up to DN 150)
• Top entry valves: Type 01420 (sizes up to DN 100)

Rectification and heating of the decomposition products

• Globe valves: Type 03321, 01321 (sizes up to DN 150)
• Top entry valves: Type 01420 (sizes up to DN 100)

Storage and provision for extraction

• Actuated globe valves: Type 01343 (sizes up to DN 200)
• Gate valves: Type 09340 (sizes up to DN 100)
• globe valves: Type 01321 (sizes up to DN 150)
• Top-entry valve: Type 01420 (sizes up to DN 100)
• Check valves: Type 05414 (sizes up to DN 200)
• Valve for vacuum-insulated pipework: FullX type 11C01 (sizes up to DN 50)
• Safety valve type 06386 and 06388 (pressures up to 50 bar)
• Safety valve type 06850 (pressures up to 250 bar)

You can find all information again in our