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Dewar Flask

Dewar flasks are double-walled vacuum insulated flasks made of glass or metal, which have the task of thermally insulating a therein-stored product (LN2; CO2 etc.) against the ambient temperature. Dewar flasks consist of an inner and an outer recipient, which is connected on top at the filling port. The space between the inner and the outer flask is vacuum insulated, to stop the heat contact between the product stored in the Dewar flask and the ambient temperature (contact warmth).
Dewar flasks made of glass have a silver coating in the vacuum space, to minimize the warmth radiation. The best possible insulation could be received by reducing the contact and radiation warmth.
Cold traps with dewar flask are used in conjunction with vacuum pumps to collect condensation produced from humidity or solvents and these cold traps can be used for many different tasks.

The most common application is collecting condensation produced from humidity or solvents from rotating discs, vacuum pumps, or high vacuum systems that use oil diffusion or turbo-molecular pumps.

Lab Grade Dewars with a narrow mouth are ideal for temporary storage or room-to-room transfer (Not for Vehicle transfer). Standard features include a low evaporation cork stopper, fully shielded evacuation tip, weighted bases, and a partial aluminum base

Dewar Flask

Dewar with Trap | Protective Mesh | Dewar Carry Case | Low Form | Dewar Round Bottom Flask (Narrow mouth)

Part. No. Glass TrapDewar
71155Dewar Assembly 1000 ml 150 ml1000 ml
71156Dewar Assembly 2000 ml250 ml2000 ml
71157Glass Trap | SS 316 Trap | Teflon Trap150 ml 1000 ml
71158Glass Trap | SS 316 Trap | Teflon Trap250 ml2000 ml
71159SS 316 Protective mesh150 ml 1000 ml
71160SS 316 Protective mesh 250 ml2000 ml
71161Dewar with SS 316 Carry Case No TrapNo Trap1000 ml
71162Dewar with SS 316 Carry CaseNo Trap2000 ml
71163Dewar with SS 316 Carry CaseNo Trap3000 ml
71164Dewar Flask with Low form SS 316 Case No Trap1000 ml
71165Dewar Flask with Low form SS 316 CaseNo Trap2000 ml
71166Dewar 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 Flask

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