Low Evaporation High Efficiency 210L Cryogenic Liquid Oxygen Dewar Vessel for Oxygen Generating Plant
Products Description
210L Cryogenic Storage Dewar, vertical vacuum-insulated cryogenic liquid cylinder adopting MLI multi-layer insulation technology, for static storage & self-pressurized supply of cryogenic liquid at -196℃ (LN2, LO2, LAr, LCO2). Double 304 stainless steel pressure vessel, independent vacuum jacket blocks heat conduction, convection and radiation to minimize boil-off loss. Integrated self-pressurization coil, pressure safety assembly and float liquid level monitor, to provide stable cryogenic medium supply for laboratories, cryo material testing, precision manufacturing and research institutes. Designed per pressure vessel codes, full NDT inspection, CE/ISO/TPED/DOT available, third-party performance test acceptable.
Product Specification
| Specification | DPL450-21M | DPL450-21HP | DPL450-Z1VHP | DPL450-236MP |
| Geometric Volume (L) | 210 | 210 | 210 | 236 |
| Effective Volume (L) | 189 | 189 | 189 | 212.4 |
| Size(D×H)mm | 中508×1716 | 中508×1720 | 中508×1720 | 中508×1867 |
| Working Pressure(MPa) | 1.37 | 2.05 | 2.88 | 1.37 |
| Set pressure of safety value(MPa) | 1.59 | 2.41 | 3.45 | 1.59 |
| Set pressure of bursting discset/ Set pressure of assistant safety value(MPa) |
2.6/2.41 | 3.6 | 5.17 | 2.6/2.41 |
| Evaporation rate(liquid nitrogen) | ≤2.0% | ≤2.0% | ≤2.0% | ≤1.97% |
| Empty weight(kg) | ~131 | ~148 | ~173 | ~141 |
| Maximum filling weight:Liquid oxygen (kg) | ~215 | ~215 | ~215 | ~242 |
| Maximum filling weight:Liquid nitrogen (kg) | ~153 | ~153 | ~153 | ~172 |
| Maximum filling weight:Liquid argon (kg) | ~264 | ~264 | ~264 | ~297 |
| Maximum filling weight:LNG(kg) | ~80 | / | / | ~90 |
| Maximum filling weight:Liquid carbon dioxide (kg) | / | ~195 | ~195 | / |
| Level gauge | Float type/ Capacitance |
Float type/ Capacitance |
Float type/ Capacitance |
Float type/ Capacitance |
| The base style | Stainless steel- rubber bas |
Stainless steel- rubber bas |
Stainless steel- rubber bas |
Stainless steel- rubber bas |
Notice
Cryogenic liquid cylinders have an inner container and an outer container with an insulated vacuum space between them. Any abuse(dents, dropping.tip-over, etc.)can affect the integrity of the containers insulation system.DPL series containers will allow you to use a hand truck or hoist to handle these loads properly.Do not attempt to move these cylinders by any other means. While moving the cylinder, the following precautions should be observed
1.Never lay the cylinder on its side. Always ship, operate and store the unit in a vertical or upright position.
2.When loading or unloading the container from a truck,use a hand truck, lift gate, crane or parallel loading dock.Never attempt to manually lift the unit.
3.To move the container over rough surfaces, or to lift the container, attach an appropri-ated sling to the lifting points cut into the welded support posts, and use a portable lifting device that will handle the weight of the container and its contente
Features
✅ Advanced Vacuum Insulation for Maximum Efficiency
Double-layer vacuum structure: The inner container stores the cryogenic liquid, while the outer container houses multi-layer insulation materials and a high-vacuum space to significantly reduce heat transfer and evaporation loss.
Long holding time: Superior insulation ensures longer liquid retention compared to standard storage solutions.
✅ Automatic Continuous Gas Supply
Built-in pressure-building coil ensures a stable gas supply without the need for external gasification equipment.
Can provide continuous gas output, making it ideal for cutting, welding, medical applications, and laboratories.
✅ Durable & Safe Structural Design
Stainless steel construction for superior corrosion resistance and durability.
Equipped with safety relief valves and pressure gauges for enhanced protection.
Structural integrity maintained even under demanding transport and storage conditions.
✅ Easy Handling & Transportation
Ergonomic handling system: Designed with DPL Series mobility features, allowing transport via carts or cranes.
Vertical positioning required: Prevents damage to the vacuum insulation system, ensuring long-term performance.
Lifting points included: Facilitates secure and stable handling when moving over rough surfaces.
✅ Versatile Applications Across Industries
Medical & Healthcare - Oxygen therapy, MRI cooling, cryosurgery
Industrial & Manufacturing - Welding, metal cutting, electronics manufacturing
Aerospace & Research - Rocket fuel storage, cryogenic testing
Food & Beverage - Food freezing, carbonation, cryogenic packaging
Environmental & Energy - LNG refueling stations, CO2 recovery
Why Choose Our Cryogenic Liquid Cylinder?
1.Vacuum process: long high-vacuum pumping & degassing, stable vacuum jacket, 5-year vacuum warranty.
2.Welding: auto cryogenic welding, 100% RT/UT NDT on weld seam to avoid micro leakage.
3.Safety redundancy: safety valve + bursting disc, comply with PED pressure vessel standard.
4.Degreasing option: oil-free degreasing for LO2 dedicated version for oxygen service safety.
5.Consistent performance: boil-off tested individually for every dewar, test data report supplied, not theoretical value.
Application Scenarios
🔬 University & research institute cryogenic experiment, material low-temperature mechanical test
🔬 Semiconductor, vacuum coating, precision electronics cooling
🔬 Cryopreservation of biological samples, stem cells & strains
🔬 Aerospace component cryogenic performance test
🔬 Precision welding, laser processing & heat treatment
🔬 Chemical cryogenic reaction & cold trap system
🔬 Fixed storage & gas supply for industrial gas station
Packing & Shipping
1.Packing: Standard fumigated wooden export case / reinforced steel frame package (steel frame recommended for sea container hoisting & anti-impact).
2.Protection: Valves, pressure gauge & level gauge individually wrapped with foam; outer tank wrapped with stretch film for anti-rust.
3.Marking: Shipping mark with model, GW, NW, dimension, lifting point & hazard label.
4.Transport: 210L cryogenic storage dewar is pressure vessel, shipped per IMDG code for sea/air transport, FCL & LCL available.
After Sales Service
1.12-month full machine warranty, 5-year vacuum jacket warranty.
2.Full English technical documents provided, remote diagnosis, operation training & safety briefing. Support drawing revision guidance, spare parts global courier. Free spare parts for non-artificial failure within warranty. Annual maintenance technical plan available, paid on-site service for overseas projects.
Factory & Service Advantages
1.In-house cryogenic pressure vessel design team, support system integration solution.
2.Full type test capability: hydrostatic, air tightness, vacuum, burst test.
3.Accept third-party lab performance sampling, English test report available.
4.Complete technical document: 3D drawing, P&ID, operation manual, calculation sheet, material certificate.
5.Global remote technical support, assist site commissioning & safety training.
Customer Visit
Overseas customers are warmly welcome to visit our factory. Arrange production line tour, finished 210L cryogenic storage dewar display, pressure test demonstration & face-to-face technical discussion. Pick-up service & interpreter available by advance appointment. Factory video, certificates & project references available before your visit.
FAQ
Q: Can you provide pre-shipment inspection video for 210L cryogenic dewar?
A: Yes, we can record water pressure test, air tightness test, vacuum test video.
Q: What medium can be stored inside this cryogenic liquid cylinder
A: LN2, LO2, LAr, LCO2.
Q: How to read liquid level of 210L liquid nitrogen dewar?
A: Standard float liquid level gauge; optional digital level indicator.
Q: Can 210L dewar work continuously for gas output?
A: Yes, built-in self-pressurization coil to keep stable gas supply.
Q: Can you accept third-party inspection like SGS/BV for 210L cryogenic dewar?
A: Yes, welcome third-party inspection before shipment.
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