500L Horizontal Cryogenic Cylinder
Medium-pressure cryogenic liquid container, gas dewar cylinder
DSW is one of the leading manufacturers and exporters of cryogenic cylinders and gas tanks, and it has industry-leading manufacturing ability that delivers unrivalled gas cylinder stability.
Benefits
Space Efficiency: Ideal for compact areas.
Improved Stability: Less likely to tip over during transport or handling.
Easier Handling: Can be smoothly rolled or moved.
Increased Storage Capacity: Enhances space utilization.
Better Pouring Control: Allows for precise liquid dispensing.
Reduced Evaporation: Limits liquid loss.
Sturdier for Transport: More secure during transit.
liquid nitrogen cylinder sizes
| Model | DPL-175 | DPL-195 | DPL-210 | DPW-499 | |
| size mm | Φ505×1551mm | Φ505×1675mm | Φ505×1761mm | 2113×760×995mm | |
| working pressure(MPa) | 1.37 | 1.37 | 1.37 | 1.59 | |
| Relief valve take-off pressure(MPa) | 1.59 | 1.59 | 1.59 | 1.89 | |
| Bursting pressure of the bursting disc(MPa) | 2.41* | 2.41* | 2.41* | 2.41(2.86*) | |
| Geometric volume (L) | 175 | 195 | 210 | 499 | |
| Effective volume(L) | 160 | 180 | 195 | 460 | |
| Evaporation rate (liquid nitrogen) | 2.10% | 2.02% | 1.99% | 1.70% | |
| Empty cylinder weight(kg) | 125 | 135 | 140 | 345 | |
| Filling Medium | O2(kg) | 170 | 190 | 205 | 478 |
| N2(kg) | 120 | 134 | 145 | 334 | |
| Ar(kg) | 208 | 232 | 250 | 585 | |
| LNG(kg) | 70 | 78 | 84 | 196 | |
High pressure Horizontal cryogenic cylinder, dewar cylinder
| Model | DPL-175 | DPL-196 | DPL-210 | DPW-499 | |
| size mm | Φ505×1551mm | Φ505×1676mm | Φ505×1761mm | 2113×760×995mm | |
| working pressure(MPa) | 2.3 | 2.3 | 2.3 | 2.5 | |
| Relief valve take-off pressure(MPa) | 2.41 | 2.41 | 2.41 | 2.86 | |
| Bursting pressure of the bursting disc(MPa) | 3.62* | 3.62* | 3.62* | 3.62(4.14*) | |
| Geometric volume (L) | 175 | 195 | 210 | 499 | |
| Effective volume(L) | 160 | 180 | 195 | 460 | |
| Evaporation rate (liquid nitrogen) | 2.10% | 2.02% | 1.99% | 1.70% | |
| Empty cylinder weight(kg) | 143 | 152 | 160 | 405 | |
| Filling Medium | O2(kg) | 170 | 190 | 205 | 478 |
| N2(kg) | 120 | 134 | 145 | 334 | |
| Ar(kg) | 208 | 232 | 250 | 585 | |
| LNG(kg) | 70 | 183 | 197 | 460 | |
Horizontal Dewar Testing
High-purity nitrogen (up to 99.999%) will be used to conduct the strength testing.
Finally, advanced helium mass spectrometer leak detectors, with precision up to 2×10⁹ Pa.L/s, will be used to perform helium mass spectrometer leak detection.
The inner containers of the storage tanks will be thoroughly pickled to meet cleanliness requirements for hazardous materials.
Imported ultraviolet black light lamps will be used to ensure that there are no oil stains or other organic impurities in the inner containers. After cleaning, the inner and outer containers will be assembled within a time frame of less than 2.5 hours. Once assembled, the inner containers and interlayers will be filled with nitrogen to protect them from dust and organic impurities, ensuring cleanliness.
The inner and outer surfaces of the outer containers will undergo comprehensive sandblasting treatment to meet Sa-2.5 standard requirements.
When the surfaces of the steel plates exhibit a metallic color, a vacuum cleaner will be used to remove any dust adhering to the surface, further ensuring the vacuum degree in the interlayer.
Special high-quality perlite will serve as insulation material in the interlayer.
The perlite will be treated with our company’s specialized process before being added to the interlayer.
All internal cylinders, after manufacture, will undergo gas-tight and pressure performance tests.
Both the internal and outer cylinders will undergo rigorous leak detection using a helium mass spectrometer. Upon completing production, we will open all pipe openings for nitrogen purging and replacement to ensure compliance with the oxygen usage standard. Afterwards, all pipelines and valves will be sealed, and the tanks will be filled with 0.2 MPa high-purity nitrogen for protection.
