Liquid Nitrogen Cylinder — liquid dewars and cylinders in handy sizes
A Liquid Nitrogen Cylinder from REAL GAZ is a vacuum-insulated cryogenic container designed to hold nitrogen as a liquid at −196 °C and deliver it as liquid, gas or both, depending on its valve configuration.
Unlike a compressed gas cylinder, it is not filled to high pressure, so it stores far more nitrogen in the same space.
Unlike a compressed gas cylinder, it is not filled to high pressure, so it stores far more nitrogen in the same space.
Vessels are built to EN 13458, ISO 21029 and TPED, labelled under EN ISO 7225 and transported as UN 1977 according to ADR.
Vessel types include low-pressure dewars of 25 to 50 litres for laboratory use, mobile pressurised vessels of 180 to 230 litres with liquid and gas withdrawal, and wide-neck dewars for dipping and storing biological samples. Contents gauges, pressure-building circuits and trolley frames are available. A full 180 litre vessel may lose between 1.5 and 3 per cent per day through natural evaporation, so users should plan consumption rather than keep vessels idle for weeks. Ask about trolley frames, dip tubes and phase separators so the vessel suits your workflow.
🏭 Where Liquid Nitrogen Cylinders Are Used
- ⚙️ Cryogenic liquid withdrawal — pressurised vessels deliver liquid through a hose for cooling jobs and dosing lines;
- 🔬 Sample storage — wide-neck vessels hold biological and materials samples at stable low temperatures;
- 🏥 Veterinary and cryotherapy — trained practitioners use small dewars for cold treatment and semen-bank storage;
- 🚀 Gas supply on site — a vessel with a vaporiser provides nitrogen gas at constant pressure without a compressor.
💡 Why Choose REAL GAZ
- ✅ More nitrogen per vessel — one 180 litre vessel holds the gas equivalent of roughly 20 high-pressure cylinders;
- 🧪 Low pressure — vessels run at pressures well below those of steel gas cylinders;
- 🎯 Matched configuration — choose gas only, liquid only or dual withdrawal depending on the task;
- 🔒 Maintained fleet — vessels are vacuum tested, inspected and cleaned between fills;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- vacuum insulation and static evaporation rate checks;
- safety valve and rupture disc inspection;
- cleanliness and oxygen-service preparation of the liquid circuit;
- leak testing of valves and couplings.
Vessels must be kept upright, moved with trolleys and never sealed with a plug or sealed cap, because pressure builds as nitrogen warms. Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ hires and refills each Liquid Nitrogen Cylinder for factories, clinics, universities and laboratories in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. We provide handling training, spare parts and exchange schedules on request.
REAL GAZ — cryogenics in a vessel you can move.