Technical Gas Dewar Flasks

Technical Gas Dewar Flasks — insulated containers for technical-grade cryogens

Technical gas Dewar flasks store and dispense technical-grade nitrogen, argon and CO₂-based coolants without external power. REAL GAZ offers flasks in several volumes, from table-top 2 litre models to 35 litre floor units, each tested for vacuum retention before dispatch.
They are an economical alternative to pressurised liquid cylinders when withdrawal is occasional and manual.

Product specifications refer to ISO 14175 for argon-based gases, ISO 21029-1 for vacuum-insulated vessels and EN 1089-3 for identification.

🏭 Where Technical Gas Dewar Flasks Are Used

⚙️ Pipe freezing — technical liquid nitrogen freezes pipe sections so that repairs are possible without draining a system;
🔬 Cold storage of consumables — adhesives and reagents are kept chilled during transport to field jobs;
🏥 Thermal conditioning — small components are cooled for fit and tolerance verification;
🚀 Demonstrations and training — safe, visible cryogenic experiments help train technicians and students.

💡 Why Choose REAL GAZ

✅ No power needed — passive insulation holds cryogens for long periods;
🧪 Technical grade value — suitable purity at a sensible cost for non-critical applications;
🎯 Wide size range — models from 2 to 35 litres match different usage patterns;
🔒 Easy to service — replaceable stoppers and handles keep flasks working for years.
📄 Certificate of Analysis (CoA) — supplied with every order.

📦 Handling & Storage of Technical Gas Dewar Flasks

Fill only to the recommended level to leave room for vapour.
Wear protective gloves and eye protection during every transfer.
Do not drop or knock the neck, since a damaged vacuum cannot be repaired in the field.
Select the flask by daily volume, not by the largest job of the year, because oversized flasks lose more liquid between uses.
Use a funnel when decanting to avoid splashes on the neck, where frost build-up can block the opening.
Mark each flask with the product and fill date, which helps identify old contents and avoid accidental mixing.
Ask about bulk refill agreements if you use more than one flask per week.
Store spare flasks empty and dry with the stopper removed, which prevents moisture build-up inside the neck during long periods of inactivity.

🔬 Quality Control & Safety

vacuum retention check on every flask;
confirmation of material suitability for low temperature;
product identification and lot marking;
pre-delivery cleanliness inspection.

Flasks are carried under ADR / UN provisions with correct labelling.

⚙️ Trusted Gas Solutions

For technicians and workshop managers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, REAL GAZ supplies technical gas Dewar flasks together with refills and handling guidance. Ask for a quotation based on your volume and use frequency.

REAL GAZ — simple, silent, reliable cold storage.