Cryogenic Dewar Flasks
Cryogenic dewar flasks are essential for safely storing and handling liquefied gases like nitrogen, oxygen, and helium. These specialized containers maintain extremely low temperatures, ensuring the stability and longevity of cryogenic substances.
Dewar flasks feature a double-walled design with a vacuum layer that provides exceptional insulation, minimizing heat transfer. This advanced construction helps retain the low temperatures necessary for preserving sensitive materials. Some models also include protective aluminum casings and durable stainless steel interiors, offering additional robustness and resistance to wear and tear.
The practical benefits of these features are clear. The efficient insulation reduces evaporation rates, conserving the stored cryogenic liquids and saving costs over time. The sturdy design ensures long-lasting performance, even in demanding environments, making them ideal for laboratories, medical facilities, and industrial applications.
Cryogenic dewar flasks come in various sizes and capacities, from small portable units to large stationary models, accommodating a wide range of needs. Accessories such as pressure relief devices, transport carts, and siphon tubes are also available, improving the versatility and functionality of these flasks.
See our cryogenic storage containers and laboratory flasks for related products.
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Economical Vented lid Suitable for LN2 or dry-ice 4 sizes available Blue metal cased economy Dewar Flasks are rust and corrosion resistant. Double-walled silvered boroscilicate glass, vacuum pumped insures efficient storage, transport and use of liquid nitrogen and dry-ice. Lid vent…
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Low Form, Cylindrical Dewar Flasks
Pope ScientificCylindrical glass liner for increased coolant capacity
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Low Form, Hemispherical Dewar Flasks
Pope ScientificBorosilicate Glass Liner Permit many essential operations; not practical with standard cylindrical or spherical Dewar These operations include: Rapid freezing and recovery of tissue/organ specimens Ability to insert small flasks in Dewar Agitation in flask with…
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Liquid Dewars
Horizon ScientificABS LD Class 4 Liter Liquid Nitrogen Capacity 0.19 Liter/Day Static Evaporation Rate Neck Diameter (mm): 35 Exterior Height (mm): 426.7 Exterior Diameter: 185.4 Designed for efficient storage of LN2 …
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SYNTHWARE Tall Form Dewar Flasks
Kemtech AmericaDewar Flask, Tall Form, Metal Housing Capacity: 350, 665, 1000, 1900, 3500, and 4300mL available Interior Depth: 125, 195,190, 302 and 305mm available Interior Diameter: 70mm Flask has weighted base for stability and a full length aluminum housing which extends to the top rim. *Due…
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Benchtop HDPE Dewar Flasks
Thermo Scientific NalgeneCompletely safe for short-term storage of ice water, dry ice solvent and liquid nitrogen and for use in hot baths Chemical-resistant HDPE double walls are filled with urethane foam and can withstand temperatures from -196°C to +100°C Vented, insulated cover All sizes feature…
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SYNTHWARE Low Form Hemispherical Dewar Flasks
Kemtech AmericaDewar Flask, Low Form, Hemispherical Multiple sizes available, with aluminum base to allow transfer of magnetic field. *Due to extra high vacuum, the Dewar flasks still have a rare possibility to explode, so working behind a safety shield in hood and always wearing goggles are strongly recommended.
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Cylindrical Form Dewar Flasks With Extended Base
Pope Scientific
Similar to 5028M40 series, but aluminum base extends up to mouth of flask Without plastic mesh
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Cylindrical Form Dewar Flasks
Pope Scientific
These vacuum lab-grade standard dewars are manufactured for efficient use with liquid nitrogen (LN2) and other liquid gases Dewar vacuum flasks are made of double-walled borosilicate glass, fully silvered, evacuated to 10-5 and covered by a protective mesh. Evacuation tips and flask…
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Flasks, Dewar, Tall Form, Foam
ChemglassFeatures: Increased SAFETY- Unbreakable Lightweight Design Each Dewar is Supplied with a Lid Patented Closed Cell Foam Construction (USPTO # 7,971,744) Lower Boil Off and Consumption of Liquid Nitrogen Patented foam dewars provide a safe and durable vessel for handling…
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Aldrich® wide-mouth dewar flasks aluminum housing
MilliporeSigmaBorosilicate glass with protective aluminum or plastic mesh housing and extended aluminum base weighted for stability. Legal Information: Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
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Cylindrical form, silvered and evacuated. Furnished with an aluminum base. Exterior, including base, is coated with a tough, resilient, baked-on plastic which does not rupture if flask breaks. Intended for use with liquid nitrogen. Performance is not g
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LD Series Liquid Nitrogen Dewars are designed for storage of small quantities of liquid nitrogen. High-strength aluminum shell is both durable and light-weight. Super insulation provides advanced thermal protection. Neck tube joins inner and outer container, providing maximum durability and minimum…
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Lab-Line Thermo-Flasks
Thermo ScientificStainless steel/glass, wide mouth Features a corrosion-resistant, stainless steel exterior with a carrying handle and vented lid which is secured by two toggle clamps Recommended for the safe transportation of liquid nitrogen Various capacities
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Stainless Steel Dewar Flasks
Crystal TechnologiesStore and transport low-temperature liquid gases or high temperature liquids. Dewar flasks are available in two sizes 1000ml or 500ml and come complete with vented stainless steel lids. Model SDF-1000 comes with removable stainless steel handle.
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Dewar Accessories
Pope ScientificPope Lab Grade Dewars are supplied with stoppers for the wide mouth model and for the narrow mouth cylindrical Dewars. Need another one? Replacement stoppers can be purchased separately.
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Flasks, Dewar, Low Form, Foam
ChemglassFeatures: Increased SAFETY- Unbreakable Lightweight Design Each Dewar is Supplied with a Lid Patented Closed Cell Foam Construction (USPTO # 7,971,744) Lower Boil Off and Consumption of Liquid Nitrogen Patented foam dewars provide a safe and durable vessel for handling…
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Lid-clamps for safe transportation Vented lid Suitable for LN2 or dry-ice 4 sizes available Our dewar flasks are rust-free, non-corrosive, hygenic and strong. Double-walled boroscilicate glass, vacuum pumped and silvered insures efficient storage, transport and use of liquid…
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Laboratory Grade Cylindrical Dewar Flasks
SP Wilmad-LabGlassFor routine use. Furnished silvered, evacuated and with aluminum base. Not for transportation of Liquid Nitrogen. Properties Capacity mL: 1000 Inside Diameter Inches: 2-11/16 Inside Depth Inches: 11-7/8
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Cylindrical, Wide Mouth Dewars with Metal Handles
Pope Scientific
The handled Dewar vacuum flask is ideal for temporary storage and liquid gas service, especially Liquid Nitrogen. The wide mouth design with the fully silvered borosilicate glass inner flask incorporates the convenience of a coated handle and full aluminum base on the most popular cylindrical model…
