Liquid Oxygen, Nitrogen, Helium Cylinders — three cryogens for three very different jobs
Liquid Oxygen, Nitrogen, Helium Cylinders allow three very different cryogens to be stored near their boiling points: oxygen at about minus 183 °C, nitrogen at minus 196 °C and helium at minus 269 °C.
REAL GAZ offers suitable insulated vessels for each, with the extra insulation and handling care that helium demands.
REAL GAZ offers suitable insulated vessels for each, with the extra insulation and handling care that helium demands.
Containers are built and inspected to ISO 21029-1, helium dewars use radiation shields and liquid oxygen systems follow EN 1797 material compatibility rules for cryogenic service.
Each of the three cryogens demands different engineering. Liquid oxygen is a strong oxidiser, so vessels, hoses and gaskets must be oxygen-compatible and free of oils. Liquid nitrogen is inert but can cause asphyxiation in small rooms, so oxygen depletion alarms are advised. Liquid helium boils at only 4 kelvin, and even small heat leaks cause loss, so dewars use extra shielding and are filled using pre-cooled transfer lines. Helium is also a finite natural resource, and recovery systems can capture boil-off for reuse. REAL GAZ can discuss recovery options and recommend sensible transfer practices.
🏭 Where Liquid Oxygen, Nitrogen and Helium Cylinders Are Used
- 🧲 Helium for superconducting magnets — liquid helium cools research magnets and NMR systems to superconducting temperatures;
- 🧬 Nitrogen for biobanks — liquid nitrogen keeps samples and cell lines at stable ultra low temperature;
- 🔥 Oxygen for process burners — liquid oxygen supplies high oxygen demand in glass and metal melting;
- 🚀 Aerospace testing — cryogens are used to chill test rigs and simulate space conditions.
💡 Why Choose REAL GAZ
- ✅ Three cryogens together — one partner for all liquid gases reduces supplier complexity;
- 🧪 Helium handling expertise — low-loss dewars and transfer lines limit costly boil-off;
- 🎯 Right capacity — from 25 litre portable dewars to 250 litre cylinders;
- 🔒 Oxygen cleanliness — liquid oxygen equipment is cleaned and verified free of hydrocarbons;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📦 Storage and Transfer
- never seal a cryogenic vessel, all must vent through a relief device;
- use transfer hoses and fittings designed for the specific cryogen;
- avoid contact with skin and eyes, use cryogenic gloves and face protection;
- keep liquid oxygen away from oil, grease, and combustible materials.
🔬 Quality Control & Safety
- multi-stage purification and cleaning of every vessel;
- precision gravimetric filling and weight checks;
- moisture & impurity analysis before release;
- leak testing and pressure integrity checks.
Cylinders and vessels comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies Liquid Oxygen, Nitrogen, Helium Cylinders to universities, research institutes and industry in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Ask us about transfer equipment and training for your staff.
REAL GAZ — extreme cold, handled with care.