210L Cryogenic Liquid Oxygen Dewar Tank High Pressure Seamless for Gas Filling & Distribution
Products Description
210L cryogenic storage dewar, vertical vacuum insulated cryogenic liquid cylinder, designed for safe storage & transportation of LN2, LO2, LAr, LCO2 and other cryogenic liquids. Adopt double stainless steel structure & high-vacuum multi-layer winding insulation, equipped with self-pressurization assembly, pressure gauge, safety relief valve and liquid level indicator. Low boil-off loss. Widely used for industrial gas station, laser cutting, metallurgy, shipbuilding & welding projects. Available with CE, ISO, DOT pressure vessel certifications. Pre-shipment video inspection available for stationary storage & short-distance transport.
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
✅ Double 304 stainless steel vessel, high vacuum multi-layer insulation, ultra-low boil-off loss
✅ Built-in self-pressurization circuit, no external booster needed for stable gas output
✅ Integrated valve manifold, pressure gauge, level gauge, safety valve & bursting disc for multi-level safety protection
✅ Base foot ring & anti-collision ring, safe for hoisting & site handling
✅ Standard international connection ports, easy piping & filling
✅ Long vacuum retention, 5-year vacuum warranty under normal operation
✅ Vertical compact layout, small footprint for workshop & gas station installation
Why Choose Our Cryogenic Liquid Cylinder?
1.Superior Vacuum Insulation - Industry-leading insulation for longer holding times.
2.Automatic Gas Supply - Continuous operation without frequent manual intervention.
3.Heavy-Duty Stainless Steel Construction - Ensures safety and durability.
4.User-Friendly Handling & Transport Features - Designed for ease of movement and operation.
5.Compliance with Industry Standards - Meets international safety and quality certifications.
Application Scenarios
✅ Industrial gas company: LN2, LO2, LAr, LCO2 storage & gas supply
✅ Laser cutting, welding, metallurgy & heat treatment
✅ Marine vessel & offshore platform cryogenic supply
✅ Electronics, semiconductor, material cryogenic testing
✅ Chemical, pharmaceutical, biological sample cryopreservation
✅ Mining, precast factory, temporary gas supply for construction projects
✅ Cold chain, food quick-freezing & freezing processing
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 (exclude man-made damage, overpressure & improper operation).
2.Lifetime technical support: online video guidance for installation, commissioning, operation & maintenance.
3.Spare parts supply: valves, pressure gauge, gaskets in stock, shipped worldwide separately.
4.Remote troubleshooting: send pressure/level data + site video, our engineer quick diagnosis.
5.On-site training available for overseas projects (client bears travel cost).
6.Free replacement spare parts for non-artificial failure within warranty period.
Factory & Service Advantages
1.Direct cryogenic pressure vessel manufacturer with official pressure vessel license, no middleman markup.
2.Full pre-delivery inspection: hydrostatic test, leak test, vacuum test, NDT. Full inspection report & pre-shipment video available.
3.OEM & ODM available: custom logo, nameplate, valve assembly, pressure rating.
4.Fast response: 7*16h online sales, engineering team support site installation guidance & operation training.
5.Spare parts in stock, worldwide door-to-door logistics solution, support third-party inspection (BV/SGS).
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: What is 210L cryogenic storage dewar used for?
A: It is vacuum insulated cryogenic liquid cylinder for storage & supply LN2, LO2, LAr, LCO2.
Q: What is the daily evaporation rate of this 210L liquid nitrogen dewar?
A: LN2 daily boil-off ≤1.98% per day under static condition.
Q: Can this 210L cryogenic dewar be used for transport?
A: Yes, DOT certified version supports short-distance mobile transport.
Q: Can I customize the valve manifold for 210L dewar?
A: Yes, we can change valve brand, port type, add digital liquid level gauge, remote pressure sensor.
Q: What material for inner and outer tank of 210L dewar bottle?
A: Inner & outer shell both adopt 304 stainless steel
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