Dewar Flask
The Dewar Flask is a precision-engineered, vacuum-insulated container designed to safely store and transport cryogenic liquids such as liquid nitrogen, oxygen, or helium. Made from premium stainless steel and borosilicate glass, it ensures chemical resistance, thermal stability, and long-term durability. Its robust construction meets GMP/FDA/ISO standards, making it ideal for laboratories.
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Dewar Flask Data Sheet
Dewar with Trap | Protective Mesh | Dewar Carry Case | Low Form | Dewar Round Bottom Flask (Narrow mouth)
| Part. No. | Glass Trap | Dewar Capacity | |
|---|---|---|---|
| 71155 | Dewar Assembly 1000 ml | 150 ml | 1000 ml |
| 71156 | Dewar Assembly 2000 ml | 250 ml | 2000 ml |
| 71157 | Glass Trap | SS 316 Trap | Teflon Trap | 150 ml | 1000 ml |
| 71158 | Glass Trap | SS 316 Trap | Teflon Trap | 250 ml | 2000 ml |
| 71159 | SS 316 Protective mesh | 150 ml | 1000 ml |
| 71160 | SS 316 Protective mesh | 250 ml | 2000 ml |
| 71161 | Dewar with SS 316 Carry Case No Trap | No Trap | 1000 ml |
| 71162 | Dewar with SS 316 Carry Case | No Trap | 2000 ml |
| 71163 | Dewar with SS 316 Carry Case | No Trap | 3000 ml |
| 71164 | Dewar Flask with Low form SS 316 Case | No Trap | 1000 ml |
| 71165 | Dewar Flask with Low form SS 316 Case | No Trap | 2000 ml |
| 71166 | Dewar Round Bottom Flask (Narrow mouth) 250 ml | 500ml | 1000ml |
Assembly Contains Dewar Flask, Glass trap, and Protective mesh with ring
Protective Mesh will be fitted in between Trap and Dewar Flaskquest.
Overview
Dewar flask is double-walled, vacuum-insulated container designed to thermally insulate liquids like LN2 (liquid nitrogen) or CO2 from ambient temperatures. Constructed from glass or metal, these flasks feature an inner and outer vessel connected at the filling port, with a vacuum-sealed space in between to prevent heat transfer.
Key Features & Benefits:
✔ MOC Benefits: Chemically inert, corrosion-resistant, and durable under extreme temperatures.
✔ Vacuum Insulation: Superior cold retention and minimal evaporation.
✔ Non-stick Interior: Smooth surface for easy cleaning and reduced contamination risk.
✔ Precision Engineering: Double-walled design for enhanced safety.
✔ Compliance Ready: Built under GMP/FDA/ISO-certified processes.
✔ Custom Options: Available in multiple sizes and configurations.
✔ Maintenance Friendly: Simple design for long life and easy upkeep.
Applications:
- The Dewar Flask is widely used in laboratories for cryogenic storage, temperature-controlled sample transfer, and vacuum-insulated fluid handling.
- Applications includeR&D setups, scientific Dewar container systems, vacuum-insulated flasks in biotech labs, and cryogenic liquid preservation.
Explore related tools such as PTFE Sampler and Laboratory Tools for complete lab maintenance solutions.
Technical Specifications:
Dewar Flasks are fully customizable for material, size, and insulation grade per lab requirement.
FAQ's
1. Why Dewar Flask used in laboratories?
A Dewar Flask is used for safely storing and handling cryogenic liquids such as nitrogen or oxygen in laboratories and research facilities.
2. What makes JN SCIENCETECH’s Dewar Flask different?
Our flasks feature ISO-grade stainless steel, double-walled vacuum insulation, and GMP compliance for reliability and purity in sensitive lab environments.
3. Can the Dewar Flask be customized for industrial use?
Yes, customizations in capacity, MOC, and insulation type are available for specific industrial applications.


