High Pressure N₂O Gas — N₂O delivered safely at cylinder vapour pressure
High pressure N₂O gas needs careful equipment choices. At 15 °C the liquid in a cylinder exerts roughly 50 bar, and the pressure approaches 72 bar near the critical temperature of 36.4 °C, so heat control is a safety matter, not an option.
REAL GAZ supplies N₂O with fill limits and cylinder specifications set accordingly.
REAL GAZ supplies N₂O with fill limits and cylinder specifications set accordingly.
Pressure equipment is selected in line with EN ISO 2503 for regulators, EN 13445 design principles and ISO 17025 analytical control, for industrial and laboratory systems.
Because the pressure inside a nitrous oxide cylinder depends on temperature, the filling ratio is limited to leave room for liquid expansion. At the maximum design temperature the liquid must still leave a gas cushion, otherwise the cylinder could become hydraulically full and pressure would rise sharply. This is why REAL GAZ fills strictly by weight and does not simply fill to a gauge reading.
🏭 Where N₂O Are Used
- ⚙️ Pressure-regulated flame systems — two-stage regulators step the cylinder pressure down to a few bar for burner control;
- 🔬 Gas panels in laboratories — stainless steel panels isolate, purge and monitor N₂O lines;
- 🏥 Industrial reactors — metered high-pressure feed supports oxidation tests at elevated process pressure;
- 🚀 Equipment testing — valve and sensor manufacturers verify pressure ratings with real N₂O service conditions.
💡 Why Choose REAL GAZ
- ✅ Pressure-matched hardware — we recommend regulators with suitable outlet range and seat materials;
- 🧪 Temperature guidance — advice on storage keeps cylinders well below the temperature of rapid pressure rise;
- 🎯 Dry gas — low moisture protects regulators from corrosion and freezing during rapid withdrawal;
- 🔒 Documented tests — pressure test dates are visible on each cylinder and recorded in our system;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- hydrostatic testing of cylinders at the required interval;
- valve and safety device function verification;
- moisture and impurity analysis of the fill;
- post-fill leak checks at working pressure.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚠️ Safe Use at Pressure
- fit pressure relief on downstream lines;
- open valves slowly and use only sealing materials approved for oxidiser service;
- do not heat the cylinder; liquid N₂O expands rapidly;
- withdraw gas phase at moderate flow to avoid regulator cooling.
Downstream equipment should be rated above the highest pressure it may see. Use ball or needle valves with oxidiser-compatible seals, avoid dead legs where liquid can be trapped between closed valves and fit a pressure relief device wherever liquid trapping is possible. We are glad to review your piping drawing and mark any point where trapped liquid could create a hazard.
⚙️ Trusted Gas Solutions
REAL GAZ provides high pressure N₂O gas together with the knowledge needed to use it responsibly. We support customers in Azerbaijan, Turkey, Georgia and Uzbekistan, and discuss export requirements from the USA with full ADR documentation.
REAL GAZ — pressure handled with expertise.