KGW cylindrical Dewar vessels
KGW cylindrical Dewar vessels from KGW-Isotherm are specially designed for the safe storage and reliable transport of sensitive liquids, especially cryogenic media such as liquid nitrogen. Thanks to high-quality materials and a well-thought-out design, they offer a clear advantage over comparable products on the market in terms of durability and functionality. These vessels have proven themselves in both scientific laboratories and industrial environments where reliability and safety are top priorities.
Versatile properties for professional applications
These Dewar vessels are made of robust borosilicate glass 3.3 and have a protective metal shell with a blue coating. This provides them with excellent protection against damage and makes them resistant to both water and acids. The cylindrical design allows for easy handling and efficient thermal insulation when working with substances that are sensitive to temperature changes.
Important technical specifications at a glance: - Capacity: from 100 ml to 8000 ml
- Weight: from approx. 0.2 kg to 4.6 kg
- Height (total design): between 135 mm and 665 mm
- Outer diameter: between 63 mm and 165 mm
- Service life with LN2: 7 to 220 hours
- Evaporation rate LN2: 0.2 L/d to 1.2 L/d
- CE certified and manufactured in accordance with DIN standards
The cylindrical design reduces the risk of pressure peaks during filling and ensures even pressure distribution inside the vessel. At the same time, this keeps the evaporation rate low. The high transparency of the borosilicate glass allows for easy visual inspection of the fill level, which also simplifies handling in laboratories and research facilities. Thanks to the wide range of sizes available, the right model can be selected for almost any application - from small sample quantities to large-volume industrial use.
A key feature is their long-lasting temperature stability, which enables the safe storage of liquid gases such as nitrogen and helium. These stable vessels prove their worth even in demanding areas where sensitive reagents or samples must be stored at extremely low temperatures. As they are also compatible with standard protective and valve attachments, they can be individually adapted to specific requirements.
Certifications and standards
Manufacturing is subject to strict quality specifications, ensuring that the product complies with the relevant DIN standards and bears a CE mark. This guarantees that all safety-related aspects are taken into account. The ability to safely store more aggressive chemicals or extremely cold liquids makes these Dewar vessels the first choice for laboratories, universities, clinics and industrial production facilities. At the same time, they meet the standards required in many industries, enabling smooth integration into existing quality management systems.
Typical areas of application
The cylindrical vessels are suitable for numerous fields of application in which cryogenic liquids or acid-sensitive substances must be stored safely:
- Laboratory analysis: Storage of samples at extremely low temperatures, for example DNA or RNA samples in liquid nitrogen.
- Chemical industry: Storage of chemicals, reagents and process media that must remain constantly cold or protected from environmental influences.
- Materials research: Experiments with high and low temperature influences, for example for metallic materials or plastics.
- Medicine and pharmacy: Storage of sensitive medicines, diagnostic samples and vaccines that require a constant temperature. Thanks to their reliable insulation properties, high durability and flexible size selection, these vessels are universally applicable. In addition, gases such as helium or carbon dioxide in liquid form can also be easily transported and stored in them.
Frequently asked questions (FAQs)
How can I see the current fill level in the vessel?
The borosilicate glass allows you to see the liquid inside clearly. Alternatively, optional measuring connections or fill level sensors can be retrofitted to obtain precise information.
Which liquids are particularly suitable for storage?
Typically, cryogenic substances such as liquid nitrogen or helium are very well suited. In addition, various chemicals and acids can also be stored safely, provided they are compatible with borosilicate glass.
Can Dewar vessels also be used for internal transport?
Yes, thanks to their sturdy construction and protective metal shell, they are designed for short-distance internal transport. However, before transport, the appropriate safety measures, such as checking closures and fastenings, should be observed.
What accessories are available?
Various accessories are available, including ventilation and safety valves, lids with temperature sensor interfaces or special protective devices. This allows you to optimally adapt the vessels to your requirements.
Conclusion
The vessels described here are impressive thanks to their high-quality manufacture, flexible size options and reliable temperature insulation in a variety of applications. If you do not want to compromise when storing sensitive, often expensive liquids and substances, these cylindrical containers are the ideal solution. At the same time, they meet the relevant industry standards, are CE-certified and manufactured in accordance with DIN standards. This makes them equally attractive for laboratories, research facilities, medicine, pharmacy and industry, ensuring safe and efficient working practices.
