Liquid Gas Storage Dewar Flasks — long holding times for liquefied gases
Liquid gas storage Dewar flasks from REAL GAZ are tall, narrow vessels with very low static evaporation, designed to hold liquid for days or weeks.
They suit stores where a refill must be available but is not drawn constantly, and where stable temperature matters more than rapid pouring.
They suit stores where a refill must be available but is not drawn constantly, and where stable temperature matters more than rapid pouring.
Storage vessels follow EN 13458, ISO 21029-1 and EN 1251 for holding time and structural strength.
Storage flasks are built to minimise heat leak through the neck, which is the main path for evaporation. A narrow neck with a thermal baffle reduces losses, but it also limits access, so these flasks are better suited to storing a defined quantity than to frequent pouring. If you need both, we recommend a storage flask paired with a smaller transfer flask. REAL GAZ will estimate monthly liquid consumption from the vessel specification and your expected usage, which helps you budget refills without surprises. A simple logbook beside the vessel, recording the date of each fill and each lid opening, quickly reveals unusual losses. Many customers find that it pays for itself within a few months. We are glad to supply a printable template on request.
🏭 Where Storage Dewars Are Used
- 🧬 Cell and tissue banks — vapour-phase racks keep samples at stable cryogenic conditions;
- 🌾 Seed and genetic resources — long-term collections rely on steady liquid nitrogen levels;
- 🏥 Hospital pharmacies — controlled storage supports clinical trial material under written procedures;
- 🧴 Cosmetics research — temperature-sensitive actives are held between development phases.
⏱️ Understanding Holding Time
- static holding time is the days a filled vessel stays cold without any withdrawal;
- each opening of the lid shortens holding time, so limit access;
- a level gauge or a weighing platform shows when a top-up is due.
💡 Why Choose REAL GAZ
- ✅ Reliable volume — low evaporation keeps liquid levels steady between visits;
- 🧪 Scheduled top-up — our routes match refills to your boil-off rate;
- 🎯 Alarm options — temperature and level monitors can be recommended for critical stores;
- 🔒 Secure handling — locking lids and stable bases protect valuable contents;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- multi-stage inspection of every vessel before filling;
- vacuum and insulation performance checks;
- moisture & impurity analysis of the filled liquid;
- leak testing and pressure integrity checks.
Transport follows ADR / UN rules and relevant EN/ISO standards for cryogenic liquids.
⚙️ Trusted Gas Solutions
Storage is about trust, and REAL GAZ earns it with regular supply of liquid gas storage Dewar flasks and liquid fills. Biobanks, hospitals and research groups in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA rely on our planned deliveries.
REAL GAZ — steady cold for what matters most.