195L Stable Pressure Cryogenic Gas Dewar Cryogenic Liquid Tank For Liquid Nitrogen Use
Products Description
The 195L Liquid Oxygen Dewar is a double-walled vacuum-insulated cryogenic container engineered for the safe storage and transportation of Liquid Oxygen (LOX), Liquid Nitrogen (LIN), Liquid Argon (LAR), Liquid CO₂ (LCO₂), and LNG. Constructed with SUS304 stainless steel inner and outer vessels, multilayer insulation, and high-vacuum annular space, it achieves a static evaporation rate of ≤2.1%/day (LN₂). Optional working pressures include 1.4MPa, 2.01MPa, and 2.88MPa.
Technical Data Table
| Specifications | DPL450-195MP | DPL450-195HP | DPL450-195VHP |
|
Geometric Volume (L)
|
195
|
195
|
195
|
|
Effective Volume (L)
|
175.5
|
175.5
|
175.5
|
|
Size(D×H)mm
|
Φ508× 1623
|
Φ508× 1626
|
Φ508× 1626
|
|
Working Pressure (MPa)
|
1.37
|
2.05
|
2.88
|
|
Set pressure of safety value (MPa)
|
1.59
|
2.41
|
3.45
|
|
Set pressure of bursting discset/Set
pressure of assistant safety value (MPa)
|
2.6/2.41
|
3.6
|
5.17
|
|
Evaporation rate(liquid nitrogen)
|
≤2.0%
|
≤2.0%
|
≤2.0%
|
|
Empty weight (kg)
|
~124
|
~144
|
~160
|
|
Maximum filling weight:Liquid oxygen (kg)
|
~200
|
~200
|
~200
|
| Maximum filling weight:Liquid nitrogen (kg) |
~142
|
~142
|
~142
|
|
Maximum filling weight:Liquid argon (kg)
|
~245
|
~245
|
~245
|
|
Maximum filling weight:LNG (kg)
|
~74
|
/ | / |
|
Maximum filling weight:Liquid carbon dioxide (kg)
|
/ |
~181
|
~181
|
|
Level gauge
|
Float type/Capacitance
|
Float type/Capacitance | Float type/Capacitance |
|
The base style
|
Stainless steel-rubber
bas
|
Stainless steel-rubber
bas
|
Stainless steel-rubber
bas
|
Product Features
✅ International standard pressure vessel, full inspection, safe & compliant to reduce project risk;
✅ Stable vacuum performance, long-term low evaporation loss for continuous gas supply;
✅ Modular design, easy integration into complete cryogenic gas supply system;
✅ Anti-corrosion stainless steel tank, long service life and low replacement cost;
✅Standard safety components, convenient spare parts procurement globally.
more details
Packing & Shipping
Export-grade protective packing: PE film wrapping + valve protective cap + heavy-duty metal frame for anti-collision & moisture proof for sea transport. Each unit with independent marking, packing list & inspection documents attached. Packing photo & container loading video available.
Application Scenarios
✅ Medical oxygen supply: backup source of oxygen supply system in hospital center, emergency transfer, altitude clinic
✅ Industrial Gases: Metal Cutting/Welding, Laser Cutting Auxiliary Gases, Electronic Component Manufacturing
✅ Scientific research experiments: low-temperature physical experiments, superconducting magnet cooling, material low-temperature treatment
✅ Food freezing: liquid nitrogen quick freezing, food preservation and transportation
✅ Aquaculture: Transportation of live fish for oxygen supply, water body oxygenation
✅ Ground Storage and Transfer of Rocket Propellant
After Sales Service
1.12 months warranty, project-level technical support.
2.Complete operation & safety training document provided,
3.remote video troubleshooting.
4.Global spare parts express delivery.
5.On-site technical support available for large overseas projects to ensure continuous operation.
How to Select vacuum dewar
Scenario A: Township Health Center / High-Altitude Clinic
Requirements: Stable oxygen supply; difficult transport access; low refilling frequency
Recommendation: 195L + 2.88 MPa high-pressure model, used in rotation with backup cylinders
Scenario B: Metal Processing Plant
Requirements: Oxygen for cutting/welding; moderate daily consumption
Recommendation: 195L + 2.01 MPa model, equipped with a built-in vaporizer for direct pipeline connection
Scenario C: Gas Distributor
Requirements: Filling, transfer, and customer delivery
Recommendation: 195L standard model; rotating multiple units for maximum efficiency
Scenario D: Scientific Research Laboratory
Requirements: Flexible switching between liquid nitrogen and liquid oxygen
Recommendation: 195L + dual-valve configuration; one cylinder capable of handling two types of gas
Our Advantages
1.Professional cryogenic equipment manufacturing brand, years of global project export experience;
2.Complete ISO quality system & pressure vessel license, full product traceability;
3.One-stop service: sizing, proposal design, production, inspection, customs clearance & after-sales;
4.Third-party inspection & full project document package to meet EPC audit requirement;
5.Long-term project partner service, continuous technical support to guarantee stable project operation.
Customer Visit
Sincerely invite global project owners, EPC contractors & gas operators to visit our factory. Visit full production line, QC lab & finished goods warehouse, witness hydrostatic & helium leak test on site. Engineering team discuss project solution face to face, factory audit video available for project review.
FAQ
Q: Does the dewar come with a liquid level gauge?
A: Yes, a visible liquid level gauge system is standard.
Q: What is the warranty on the vacuum?
A: Three-year vacuum warranty.
Q: Can the dewar be placed horizontally?
A: Horizontal orientation is available as an option. Specify when ordering.
Q: What are the shipping terms?
A: FOB, CIF, DDP available. Ports: Qingdao/Shanghai/Ningbo.
Q: Can this dewar be used for medical oxygen?
A: Yes, it is suitable for medical LOX storage with appropriate medical-grade cleaning.
Q: Do you provide after-sales support overseas?
A: Yes, we provide remote technical support and can arrange local service partners in select regions.
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