KGW Isotherm 26–29 B-E Dewar Transport Vessels Manufacturer Datasheet
Original English manufacturer datasheet covering the corresponding model specifications, construction and configuration.
View resource →Product overview
26–29 B/BE transport Dewars hold 1–4 L and feature an aluminium carrying handle and spring-retained insulating lid. B has a blue-coated metal casing and BE a stainless-steel casing; both use borosilicate glass 3.3 inserts.
Key features
- Robust construction for temperature-sensitive storage and internal short-distance laboratory transport.
- Two springs retain the insulating lid; an aluminium handle supports carrying.
- B/BE differ in protective casing material; A types are matching replacement inserts.
- For liquid nitrogen, the website specifies an approximately Ø2 mm vent hole at the lid centre. The coolant space must remain pressure-free.
- Special versions include a vented lid, PTFE lid or silicone-sealed lid; distinguish these by intended use.
Construction and dimension illustrations
Technical specifications and models
Models and technical specifications
| Type | max. Contents approx. [L] | A [mm] | B [mm] | C [mm] | D [mm] | E [mm] | Weight approx. [kg] | Service life LN2 approx. [h] | Evaporation rate LN2 approx. [L/d] |
|---|---|---|---|---|---|---|---|---|---|
| 26 B/BE | 1 | 100 | 120 | 132 | 150 | 215 | 1.5 | 18 | 1.2 |
| 27 B/BE | 2 | 138 | 160 | 170 | 170 | 245 | 2.3 | 26 | 1.9 |
| 28 B/BE | 3 | 138 | 160 | 170 | 230 | 305 | 2.8 | 44 | 1.6 |
| 29 B/BE | 4 | 138 | 160 | 170 | 310 | 385 | 3.3 | 75 | 1.4 |
Models, refills and article numbers
| Type | Article no. | Type | Article no. | Replacement glass | Article no. |
|---|---|---|---|---|---|
| 26 B | 1211 | 26 BE | 1221 | 26 A | 1201 |
| 27 B | 1212 | 27 BE | 1222 | 27 A | 1202 |
| 28 B | 1213 | 28 BE | 1223 | 28 A | 1203 |
| 29 B | 1214 | 29 BE | 1224 | 29 A | 1204 |
Applications
Storage and internal transport of temperature-sensitive goods such as dry ice, small-sample cooling and insulated containment. Liquid-nitrogen use requires the specified vented construction.
Selection guidance
Select by 1–4 L capacity, B/BE casing and medium. Do not treat the spring-retained lid as a pressure-tight closure for liquid nitrogen. Holding times follow the current website.