195L Heat Insulated Cryogenic Gas Dewar Vacuum Jacketed Liquid Argon Dewar Bottle

195L Heat Insulated Cryogenic Gas Dewar Vacuum Jacketed Liquid Argon Dewar Bottle

195L Liquid Oxygen Dewar is vertical double-walled vacuum insulated cryogenic pressure vessel, made of 304 stainless steel. It is designed for storage & transportation of LOX, LIN, LAr. Equipped with built-in pressure building coil, economizer valve & multi-stage safety relief devices, low daily evaporation loss. It can replace dozens of high-pressure gas cylinders, widely used in industrial cutting, gas station, laboratory, mining & welding oxygen supply.
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195L Heat Insulated Cryogenic Gas Dewar Vacuum Jacketed Liquid Argon Dewar Bottle

Products Description

- Low Temperature Oxygen Dewar

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 wall stainless steel cylinder, high multi-layer vacuum insulation;

 

✅ Integrated pressure builder, economizer valve, pressure gauge, float level gauge;

 

✅ Multi safety protection: safety relief valve + rupture disc dual overpressure protection;

 

✅ Vertical reinforced base, easy for forklift lifting & transport;

 

✅ International standard cryogenic valve connection for on-site pipeline connection;

 

✅ Helium leak test for vacuum chamber before delivery;

 

✅ 1 dewar equals ~30 high-pressure oxygen cylinders, smaller footprint.

more details

Liquid Oxygen Dewar

Packing & Shipping

Liquid Oxygen Dewar

Industrial Oxygen Dewar

1.dewar Tank body wrapped with PE protective film; valve head fitted with plastic protective cap to avoid valve damage during transit;

 

2.Outer package: metal frame / solid wooden pallet optional 

 

3.Fastening: steel wire + anti-slip mat to prevent shifting inside container;

 

4.Marking: shipping mark, danger label, model, N.W & G.W printed on frame;

 

5.Loading: multiple units fit into 20GP container, LCL & FCL both available.

Application Scenarios

 vacuum insulated LOX dewar

✅ Industrial metal cutting, welding, metallurgy oxygen combustion supporting

 

✅ Gas filling station, small LOX gas supply station

 

✅ Laboratory cryogenic test & research institute

 

✅ Mobile oxygen supply for mining & construction machinery site

 

✅ Aquaculture oxygen enrichment, wastewater oxidation treatment

 

✅ Medical oxygen supply (medical certified version)

 

✅ Semiconductor & electronics cryogenic process

After Sales Service

1.Warranty: 12 months warranty from B/L date. Free replacement of vulnerable spare parts such as valves for non-human damage during warranty;

 

2.Technical support: 24h online service, remote troubleshooting via email, WhatsApp & video call;

 

3.Document delivery: full package of pressure vessel certificate, operation manual & maintenance manual in electronic version;

 

4.Training: video tutorial for dewar operation, filling, daily maintenance & safety procedure;

 

5.Spare parts: long-term supply of original valves, pressure gauges, rupture discs;

 

6.Large project: on-site technical guidance available (travel cost at buyer side).

How to Select vacuum dewar

1.Confirm medium: LOX / LIN / LAr, different valve configuration for different cryogenic liquid;

 

2.Working pressure selection: 1.4MPa for static storage; 2.0MPa for continuous gas supply & frequent transport;

 

3.Evaporation requirement: choose low evaporation model for long-time static storage;

 

4.Certification requirement: PED/TPED for EU, DOT for North America, GB for domestic market;

 

5.Accessories: external vaporizer, pressure regulator, pipeline parts, OEM nameplate available.

Our Advantages

cryogenic oxygen dewar

oxygen dewar

Liquid Oxygen Dewar Manufacturer

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

Liquid Oxygen Dewar Purchase

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 195L Liquid Oxygen Dewar used for?

A: It is cryogenic pressure vessel for storage and transport of liquid oxygen, also compatible with LIN, LAr, supply gas oxygen on site.

Q: What is daily evaporation rate of your LOX Dewar?

A: ≤1.9% per day for liquid oxygen, vacuum quality is strictly tested by helium leak detector.

Q: Can this 195L cryogenic dewar work for liquid nitrogen?

A: Yes, same tank body can fill LIN / LAr, only valve configuration will be adjusted for different medium.

Q: Does 195L liquid oxygen dewar come with level gauge?

A: Yes, float type liquid level gauge is standard equipped, easy to check remaining liquid volume.

Q: Is the 195L liquid oxygen dewar empty vessel or filled with LOX?

A: We supply empty cryogenic dewar only. Liquid oxygen filling should be done by local gas supplier.

Q: What safety devices installed on 195L cryogenic dewar?

A: Safety relief valve, rupture disc, pressure gauge, pressure building valve, economizer valve.

Q: Can we customize logo and nameplate on LOX dewar?

A: Yes, OEM & ODM available, custom nameplate, logo, painting, valve brand.

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