Dewar Flask
A Dewar Flask is a double-walled, vacuum-insulated container made of glass and metal, designed to thermally insulate stored products like LN2 or CO2 from ambient temperatures. It consists of an inner and outer recipient connected at the top through the filling port, ensuring efficient temperature retention for various applications.
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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:
✔ Exceptional Thermal Insulation – Vacuum insulation minimizes heat transfer, maintaining low temperatures for extended periods.
✔ Silver-Coated Glass Dewars – Reflective coatings in the vacuum space further reduce heat radiation, ensuring maximum efficiency.
✔ Cold Trap Applications – Used with vacuum pumps to collect condensation from humidity or solvents, essential for rotary evaporation and high-vacuum systems.
✔ Narrow Mouth Dewars – Ideal for temporary cryogenic storage or lab transfers, featuring low evaporation cork stoppers, weighted bases, and aluminum shielding.
Dewar flasks are essential in laboratories, research facilities, and industrial applications, providing secure and efficient cryogenic storage.
