Description
Large Dewar insulating vessel type 30/4 C offers a nominal volume of 4 l for the safe temporary storage and handling of cryogenic liquids and temperature-sensitive samples. The vessel features an inner diameter of 158 mm, an outer diameter of 210 mm, an inner height of 250 mm and an outer height of 340 mm, providing generous capacity within a stable footprint. A blue-coated metal protective jacket surrounds the glass Dewar body, enhancing mechanical durability and reducing the risk of breakage during transport or bench use. This configuration is particularly suitable for liquid-nitrogen applications, cold-trap setups and short-term cryogenic storage in research and industrial laboratories. Manufactured by KGW Isotherm, the type 30/4 C unit combines effective thermal insulation with robust external protection. The clear dimensional specifications allow straightforward integration into existing cryogenic workflows and apparatus. Supplied as a single piece, the vessel supports laboratories that require reliable large-volume insulation without complex infrastructure. Its sturdy metal cladding and well-defined geometry make it a practical choice for routine cryogenic handling tasks.
This article is part of Cryo boxes, racks & freezer storage, in Cryogenics & cold storage.
Key features
- Pack size: 1 pc
- Type: 30/4 C
- Nominal volume: 4 l
- Inner diameter: 158 mm
- Outer diameter: 210 mm
- Outer height: 340 mm
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Questions about Large insulating Dewar flasks Typ 30/4 C
What is this article?
Large insulating Dewar flasks Typ 30/4 C is the article on this page. Luminix Health distributes KGW Isotherm for laboratory use. It sits in Cryo boxes, racks & freezer storage, inside Cryogenics & cold storage, in Lab consumables.
A cryo box or a freezer rack is how vials are found again at −80 °C or in the vapour phase of nitrogen. The grid, 9×9 or 10×10, has to match the vials. A cardboard box and a polycarbonate box differ in whether they survive liquid nitrogen. The map of the box is part of the sample.
Cold storage slows chemistry and keeps cells, proteins and nucleic acids from falling apart. A cryogenic vial is made to survive liquid-nitrogen temperatures and to be sealed against the liquid. A box and a rack are how those vials are found again. The article is not part of free standard delivery when it must stay cold: cold-chain goods are never included in that free delivery. Biosafety of the material inside is summarised by the WHO laboratory biosafety topic. Reference lines are held by ATCC.
Which category should I open next?
The category is Cryogenics & cold storage. The sub-category is Cryo boxes, racks & freezer storage. The catalogue is Lab consumables.
Shelves beside this one are Cryogenic vials & tubes and Cryo labels & markers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.