Our cryogenic dewars are super-insulated, multi-layer mobile vessels engineered to store, transport, and dispense cryogenic liquids such as liquid oxygen (LO2), liquid nitrogen (LN2), liquid argon (LAr), liquefied natural gas (LNG), and liquid carbon dioxide (LCO2).
The product features high filling rate, refillability, ease of use, safety and reliability, thanks to the adoption of advanced manufacturing technologies. All production processes comply with strict quality assurance (QA) and quality control (QC) systems. As an all-stainless steel container, it offers hygienic cleanliness with no filling contamination, being resistant to pollutants such as water, air, rust, gaseous acids, alkalis, and fluoroplastics in bottled gases-greatly enhancing the purity of the liquid nitrogen used. Compared with steel gas cylinders, it eliminates the need for frequent operations, resulting in significant savings in labor costs and material resources. Additionally, it boasts a long service life, compact structure, small footprint, centralized control, safety and reliability, as well as easy operation and maintenance. It is widely applicable in multiple fields including machinery, shipbuilding, medical care, chemicals, electronics, biology, food processing, materials science, energy, and scientific research.
Product Advantages
Core Points
Excellent insulation performance
Utilizing high-vacuum multi-layer insulation technology, the vacuum level remains stable over time, and the static evaporation loss rate of liquid nitrogen is low, effectively prolonging the storage time and significantly reducing operating costs.
Sturdy and durable structure
The tank body is made of high-quality aluminum alloy or stainless steel, featuring high strength, light weight, and corrosion resistance. The neck tube design is scientific, reducing the evaporation and heat exchange of liquid nitrogen.
Extremely high safety
Equipped with multiple safety protection devices, such as explosion-proof safety valves and inner and outer tank protection devices, ensuring timely pressure relief in abnormal situations and preventing overpressure risks.
User-friendly design
The storage container (shelf) is designed reasonably, facilitating sampling; the locking cover can effectively prevent rapid evaporation of liquid nitrogen and the entry of external contaminants; some models are equipped with casters for convenient movement.
Products Range and Specifications
|
Type |
Nominal Volume (L) |
Working Pressure (MPa) |
Empty Weight (kg) |
Maximum Theoretical Liquid Filling Capacity of LN2 (kg) |
Gas Cylinder Size (mm) |
Safety Valve Opening Pressure (MPa) |
Rupture Disk Pressure (MPa) |
|
DPL Series - Vertical Cylinders |
80 |
2.3 |
56 |
φ516*907 |
2.41 |
3.6 |
|
|
100 |
2.3 |
95 |
70 |
φ516*1037 |
2.41 |
3.6 |
|
|
175 |
1.37/2.3/2.88/3.45 |
116/133/146/164 |
121 |
φ516*1507 |
1.59/2.41/3.45/4.14 |
2.4/3.6/5.17/5.17 |
|
|
195 |
1.37/2.3/2.88/3.45 |
145/158/185/193 |
136 |
φ516*1632 |
1.59/2.41/3.45/4.14 |
2.4/3.6/5.17/5.17 |
|
|
210 |
1.37/2.3/2.88/3.45 |
135/150/166/191 |
144 |
φ516*1717 |
1.59/2.41/3.45/4.14 |
2.4/3.6/5.17/5.17 |
|
|
410 |
1.37 |
325 |
287 |
890*870*1770 |
1.59 |
-- |
|
|
450 |
1.37/2.3/3.17 |
--/370/425 |
315 |
890*870*1850 |
1.59/2.41/3.45 |
--/3.6/5.17 |
|
|
500 |
1.37/2.3/3.17 |
360/407/448 |
338 |
890*870*2000 |
1.59/2.41/3.45 |
--/3.6/5.17 |
|
|
1000 |
2.3/3.45 |
1033 |
702 |
φ1200*2182 |
2.6/4.0 |
3.6/5.4 |
|
|
DPW Series - Horizontal Cylinders |
410 |
1.59 |
342 |
287 |
1850*820*1020 |
1.9 |
2.4 |
|
499 |
1.59/2.1/2.5/3.45 |
353/4.6/420/510 |
350 |
2100*820*1020 |
1.9/2.86/2.86/4.15 |
2.4/3.6/3.6/5.17 |
|
|
1000 |
1.59 |
585 |
679 |
2100*1172*1400 |
1.9 |
2.4 |
Note: The maximum filling capacity is calculated based on the boiling point of the liquid under normal atmospheric pressure.
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