195L Integrated Cryogenic Gas Dewar Cryogen Liquid Holding Vessel Liquid Nitrogen Bottle
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
✅ Double-layer vacuum structure: high vacuum interlayer multi-layer thermal insulation, evaporation rate as low as ≤ 2. 1%/day
✅ SUS304 stainless steel: both the inner tank and the shell are made of 304 stainless steel, which is corrosion-resistant and low-temperature embrittlement-resistant
✅ Built-in vaporizer: can supply 10 m ³/h gas without external vaporization device
✅ Imported valve configuration: Adopt international standard interface and imported brand valve, sealing reliable
✅ Liquid level gauge system: visible liquid level indication, real-time liquid level status
✅ Three-year vacuum warranty: industry-leading vacuum life guarantee
more details
Packing & Shipping
Packaging: Each Dewar bottle is equipped with dust cap and shockproof rubber ring Bubble film + winding film, fixed on fumigation-free wood pallet Optional custom wooden case (as per customer's request)
Shipping Notes: Empty bottle transportation (without liquid oxygen), in compliance with IMDG/ADR Empty Bottle Transportation Specifications Support FOB/CIF/DDP multiple trade terms Port: Qingdao/Shanghai/Ningbo, production cycle 15-25 days
Note: The transportation of liquid oxygen after filling must comply with local dangerous goods transportation regulations.
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
Warranty period: 1 year for the whole machine, 3 years for the vacuum system
Technical support: 24-hour online response, providing operation videos and technical documents
Supply of spare parts: Valves, liquid level gauges, safety valves and other standing stocks, fast delivery
Maintenance services: Vacuum failure diagnosis and repair plan support
How to Select vacuum dewar
① Daily consumption determines capacity;
② Working pressure (1.4/2.01/2.88MPa) must match downstream equipment;
③ Medical oxygen supply benefits from higher pressure for stable delivery;
④ Transport vehicle load and height restrictions;
⑤ The dewar is compatible with LOX/LIN/LAR/CO₂ with proper valve configuration.
Our Advantages
1.Original cryogenic equipment manufacturer, no middlemen, factory inspection video available;
2.OEM customization: nameplate, valve brand, pipeline, color, LOGO;
3.Full document package: pressure vessel certificate, material test report, NDT report, customs export documents;
4.Technical team support for sizing calculation, piping proposal & operation training video;
5.Stable lead time, priority production for bulk orders, third-party inspection acceptable.
Customer Visit
Warmly welcome global customers to visit our factory. You can visit raw material warehouse, welding workshop, vacuum test station, hydrostatic test area & finished goods warehouse. Watch full production process of 195L liquid oxygen dewar: welding, helium leak test & hydrostatic test, check samples on site. Our technical engineers discuss sizing & customized solution face to face. Pick-up service available with advance reservation.
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
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