195L Multi-purpose Cryogenic Gas Dewar Vacuum Insulated Liquid Nitrogen Storage Vessel
Products Description
195L Liquid Oxygen Dewar is our star cryogenic storage & transport product, providing safe & stable liquid oxygen storage and on-site gas supply solution for global industrial gas projects & factory gas supply system. Double wall vacuum insulated pressure vessel, manufactured under international pressure vessel standard, full quality traceability, compatible with LOX, LIN, LAr. Widely supplied for EPC contractor, gas operator & manufacturing enterprises worldwide, safe, durable and low evaporation loss. Customized project solution available for stable oxygen supply.
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
✅ Hospital setting: Imported valves + high-pressure capability → Uninterrupted oxygen supply, reliable emergency care
✅ Factory setting: Built-in 10 m³/h vaporizer → Ready for immediate use; no waiting for pressure to build
✅ Field setting: Rubber base ring + shock-resistant design → Leak-free transport over rough terrain
✅ Laboratory setting: Precision liquid level gauge + low evaporation rate → Experimental data unaffected by gas supply fluctuations
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: What is the evaporation rate of this 195L liquid oxygen dewar?
A: The static evaporation rate is ≤2.1%/day under LN₂ conditions, which is among the best in its class
Q: Can this dewar store liquid nitrogen as well?
A: Yes. The 195L cryogenic dewar is compatible with LOX, LIN, LAR, LCO₂, and LNG with appropriate valve configuration
Q: Does it have a built-in vaporizer?
A: Yes, the integrated vaporizer can supply up to 10m³/h of gas continuously
Q: How long does liquid oxygen last in this dewar?
A: At ≤2.1%/day evaporation, approximately 45-50 days from full to empty under ideal conditions.
Q: Can I customize the dewar with my logo?
A: Yes, OEM/ODM is available, including logo, color, and valve interface.
Q: Does the dewar come with a liquid level gauge?
A: Yes, a visible liquid level gauge system is standard
Hot Tags: 195l multi-purpose cryogenic gas dewar vacuum insulated liquid nitrogen storage vessel, China 195l multi-purpose cryogenic gas dewar vacuum insulated liquid nitrogen storage vessel manufacturers, suppliers, 175L Cryogenic Dewar, 210L Cryogenic Dewar, cryogenic dewar for liquid nitrogen storage, cryogenic dewar high pressure system, cryogenic dewar liquid withdrawal system, cryogenic transport dewar
