Technical Gas He-N₂ Blend — engineered blends for technical applications
A Technical Gas He-N₂ Blend from REAL GAZ is designed with a specific engineering task in mind, such as detection sensitivity, heat transfer or flow behaviour.
Because helium is light and highly conductive while nitrogen is dense and inexpensive, adjusting their ratio changes the blend's behaviour in a predictable way.
Because helium is light and highly conductive while nitrogen is dense and inexpensive, adjusting their ratio changes the blend's behaviour in a predictable way.
REAL GAZ supplies this product according to ISO 6142-1, ISO 10156 for gas compatibility and EN ISO 11114-1 for material selection, suitable for engineering and testing departments.
🏭 Where Technical He-N₂ Blends Are Used
- ⚙️ Heat-transfer experiments — adjusting helium content alters the conductivity of the gas in thermal rigs;
- 🔬 Flow and diffusion studies — light and heavy components allow comparison of mixing behaviour;
- 🏥 Seal and gasket qualification — components are tested for permeation with a measurable tracer;
- 🚀 Cryogenic pre-cooling trials — inert blends support staged cooling tests in equipment development.
💡 Why Choose REAL GAZ
- ✅ Engineered ratio — composition chosen for the physics of the test;
- 🧪 Verified blend — analysis confirms the delivered ratio;
- 🎯 Engineering support — discussion with technical staff about suitability;
- 🔒 Inert and non-flammable — no combustion risk from the gas itself;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📦 Specifications and Supply
- Helium share adjustable across a wide range;
- Technical or high purity nitrogen balance;
- Cylinders of 10 to 50 litres, packs on request;
- Dry fill available for moisture-sensitive rigs.
Engineers should note that helium leaks through very small gaps and can permeate some elastomers. Check seal materials and connection quality when designing rigs that will use the blend.
For heat-transfer work, remember that the thermal conductivity of a mixture does not change in a simple straight line with composition, so it is wise to test at several ratios. For flow work, helium's low density changes the Reynolds number noticeably, which is useful for scale modelling. We can prepare a series of blends at stepped ratios to help you map the behaviour of your rig. Keep a record of the cylinder numbers and ratios you used, so that your results can be repeated by colleagues, and tell us if you need the blend to be particularly dry. When a rig is designed for a specific blend, it helps to specify the composition tolerance in the design file, so that later purchasers order the correct mixture rather than a close but different one.
🔬 Quality Control & Safety
- inspection of cylinder test dates and markings;
- controlled filling sequence to avoid stratification;
- verification of composition before release;
- pressure and leak checks of valve and connections.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ engineers each Technical Gas He-N₂ Blend for customers across Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, and supports them with practical handling advice.
REAL GAZ — blends designed around your test.