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Air separation FAQ

What are the reasons why the purification of the molecular sieve purifier in the DEAR Air separation plant is not up to standard?
What are the reasons why the purification of the molecular sieve purifier in the DEAR Air separation plant is not up to standard?
Sep 29, 2021
What is the principle of action of the DEAR Air separation plant high pressure air throttle (throttle-1 valve) in various applications and how does it operate?
What is the principle of action of the DEAR Air separation plant high pressure air throttle (throttle-1 valve) in various applications and how does it operate?
Sep 28, 2021
What is the function of the pneumatic remote control panel of the DEAR Air separation plant and what should I be aware of when using it?
What is the function of the pneumatic remote control panel of the DEAR Air separation plant and what should I be aware of when using it?
Sep 28, 2021
What should I be aware of when switching between molecular sieve adsorbers in the DEAR Air separation plant?
What should I be aware of when switching between molecular sieve adsorbers in the DEAR Air separation plant?
Sep 27, 2021
Why does the temperature in the middle of the DEAR Air separation plant increase gradually at the beginning of the passage of the return gas and decrease gradually at the beginning of the passage of t
Why does the temperature in the middle of the DEAR Air separation plant increase gradually at the beginning of the passage of the return gas and decrease gradually at the beginning of the passage of the air?
Sep 27, 2021
How can the economy of operation of the oxygen generators at the DEAR Air separation plant be improved?
How can the economy of operation of the oxygen generators at the DEAR Air separation plant be improved?
Sep 26, 2021
What is meant by average nitrogen purity in a DEAR air separation plant and what conditions does it depend on?
What is meant by average nitrogen purity in a DEAR air separation plant and what conditions does it depend on?
Sep 26, 2021
What are the operating instructions for the opening and closing of the cold angle bend stop valves of the DEAR air separation unit?
What are the operating instructions for the opening and closing of the cold angle bend stop valves of the DEAR air separation unit?
Sep 18, 2021
How does the DEAR Air separation unit extract krypton and xenon from the air?
How does the DEAR Air separation unit extract krypton and xenon from the air?
Sep 18, 2021
How to deal with cavitation in DEAR Air separation unit liquid oxygen pumps?
How to deal with cavitation in DEAR Air separation unit liquid oxygen pumps?
Sep 17, 2021
What should I be aware of when using a liquid oxygen reservoir with a DEAR air separation unit?
What should I be aware of when using a liquid oxygen reservoir with a DEAR air separation unit?
Sep 17, 2021
Why does the DEAR Air separation unit regulate the purity of liquid nitrogen and liquid air in the lower tower, while the liquid air throttle only regulates the liquid air level?
Why does the DEAR Air separation unit regulate the purity of liquid nitrogen and liquid air in the lower tower, while the liquid air throttle only regulates the liquid air level?
Sep 16, 2021
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DEAR News
Learn more DEAR news
The 2024 Welder and Cold Work Skills Competition of DEAR Air Separation has come to a successful conclusion
2024.04.30
Welcome Mr. Tan, Chairman of Henan High tech Industry Chamber of Commerce, and his delegation to visit and guide
2024.04.15
Product 2023 Carbon Verification Report of Kaifeng DEAR Air Separation Industrial Co., Ltd
2024.03.18
Product 2023 Carbon Footprint Report of Kaifeng DEAR Air Separation Industry Co., Ltd
2024.03.18
2023 Corporate Social Responsibility Report
2024.03.18
DEAR Air Separation celebrates ”Women's Day” on March 8th
2024.03.08
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