Dewar Flask


Dewar Flask

Dewar flask, also known as dewar bottles, dewar thermos, cryogenic storage dewar and cryo vessel, liquid cylinder, is a specialized type of mobile vacuum flask used for storing cryogenic liquid, such as LOX, LIN, LAR, LCO2 and LNG.



* Built-in booster can supply 10m3-20m3/h gas continuously
* International standard connectors are adopted, all valves are premium brands with stable performance.
* Damping ring design to ensure safe transportation

* Widely used in the industries of Laser cutting/chemical /machinery /shipbuilding/ hospital /electronic /medical /material /energy /research/fish-heat preservation, etc.

* Double-walled design, stainless steel construction

* Multi-layer vacuum insulation

* Fully welded construction

* Capacity ranges from 80L to 1000L

Working pressure: 1.37Mpa-3.45Mpa

Customized design is available upon request.

* Ideal for liquid nitrogen, oxygen, argon, CO2 or nitrous oxide

* Thick, dent-resistant outer shell
* Durable inner-vessel support system
*Heavy-duty foot ring and large diameter handling ring with four supports


About us
Chuankong General Equipment (China) Ltd. is a specialist company in the manufacturing and sales of gas equipment. We are proud of the loyalty that we are shown by both our customers and employees. Our company has an excellent engineering and production team who insist on the front line of gas equipment technology in a bid to provide our customers with the most reliable and advanced products. 

We are experts in the safe and economic production and distribution of Liquid Nitrogen (LIN), Liquid Oxygen(LOX), Liquid Argon(LAR), Liquefied Natural Gas(LNG), Carbon Dioxide(LCO2), Liquid Ethylene and Nitrous Oxide,Liquid Petroleum Gas (LPG), etc. Our products include air separation plant, storage tanks, cryogenic micro bulk tanks, ISO tank containers, semi-trailer tankers, cryogenic liquid pumps, vaporizers, LPG filling stations, cylinders, dewar flasks, dry ice making machines, dry ice blasting machines, etc.

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