LN2 Storage Dewar
Vacuum-insulated, multi-layer construction
DSW provides high-quality cryogenic tanks, dewars, cryogenic vessels, and liquid nitrogen containers
for research, medical, biotechnology, instrumentation, superconductivity, semiconductors, home care,
and food service industries.
What is a Nitrogen Dewar?
A Liquid Nitrogen Dewar is specifically designed to store or transport small quantities
of cryogenic liquids such as liquid nitrogen (LN₂), liquid argon (LAR), liquid oxygen (LOX),
and liquid helium (LHE). With its extremely low boiling point, liquid nitrogen requires careful
handling, and our dewars are engineered to provide optimal storage with maximum thermal insulation.
Key Features
- Boiling Point: Approximately −196°C (77 K; 321°F).
- Purpose: Store cryogens such as liquid nitrogen or liquid helium safely.
- Design: LN2 storage dewars feature multi-layered walls with high vacuum insulation.
- Safety: Built-in safety valves vent excess vapor pressure.
- Variety: Open buckets, flasks with loose stoppers, or self-pressurizing tanks.
- Applications: R&D, superconductivity, fertility, oxygen delivery.
- Storage & Handling: Dewars maintain liquid nitrogen at 77 K (−196°C).
Cryo Nitrogen Dewar Sizes
| Model | Volume (L) | Dimensions (mm) (D × H) | Pressure (MPa) | Safety Valve Pressure (MPa) | Burst Disc Pressure (MPa) | Evaporation Rate | Empty Weight (kg) |
|---|---|---|---|---|---|---|---|
| DPL450-175-1.37 | 175 | 508 × 1498 | 1.37 | 1.59 | 2.5 / 2.41 | ≤2.1% | 115 |
| DPL450-175-2.3 | 175 | 508 × 1498 | 2.3 | 2.41 | 3.84 | ≤2.1% | 138 |
| DPL450-195-1.37 | 195 | 508 × 1624 | 1.37 | 1.59 | 2.5 / 2.41 | ≤2.1% | 121 |
| DPL450-195-2.3 | 195 | 508 × 1624 | 2.3 | 2.41 | 3.84 | ≤2.1% | 145 |
| DPL450-210-1.37 | 210 | 508 × 1718 | 1.37 | 1.59 | 2.5 / 2.41 | ≤2.1% | 128 |
| DPL450-210-2.3 | 210 | 508 × 1718 | 2.3 | 2.41 | 3.84 | ≤2.1% | 153 |
| DPL450-210-2.88 | 210 | 508 × 1718 | 2.88 | 3.1 | 4.9 | ≤2.1% | 173 |
Dewar Vessels and Usage
Dewar vessels, also known as cryogenic flasks, are vacuum-insulated containers for storing and
transporting cryogenic liquids. They are used where precise cryogenic temperatures are required.
What Is Nitrogen?
Nitrogen (N₂) is a versatile industrial and laboratory gas used across many applications.
BluNet supplies nitrogen in multiple purities and delivery modes for maximum flexibility.
How Are Cryogenic Dewar Flasks Used?
- Laboratory Use: Dispensing LN₂ or helium for experiments.
- Superconductivity Research: Designed for low-temperature physics.
- Medical & Fertility: Biological storage (e.g., embryos).
- Industrial Delivery: Portable dewars for safe cryogen handling.
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