Cryogenic Liquid Nitrogen — low-temperature supply for freezing, storage and thermal processing
Cryogenic Liquid Nitrogen from REAL GAZ is a refrigerated liquid whose boiling point of −196 °C makes it the most widely used cryogen for freezing, cold treatment and the thermal conditioning of materials.
Cooling is achieved through direct contact or through the heat absorbed as the liquid vaporises, with no residue left on the product.
Cooling is achieved through direct contact or through the heat absorbed as the liquid vaporises, with no residue left on the product.
Equipment is designed and tested to EN 13458, ISO 21029-1 and EN 13648 for pressure relief, with cryogenic material choices guided by ISO 21010.
Cryogenic treatment of tool steels, brake discs and dies slowly lowers parts to about −185 °C, holds them for several hours and returns them to room temperature to stabilise the structure and improve wear resistance. Controlled ramp rates are essential, as sudden temperature change can crack material. Our engineers can support the design of a treatment cycle, specify insulated chambers and arrange the continuous liquid supply needed for long soak times. For storage applications, vapour-phase tanks hold samples above the liquid at about −150 °C, lowering the risk of cross-contamination, while liquid-phase tanks keep samples fully immersed.
🏭 Where Cryogenic Liquid Nitrogen Is Used
- ⚙️ Cryogenic treatment — cutting tools, moulds and engine parts are soaked at very low temperature to improve dimensional stability;
- 🔬 Cold trapping — vapours are condensed in vacuum lines to protect pumps and capture solvents;
- 🏥 Biological storage — cell, plasma and tissue banks hold samples in liquid or vapour phase tanks;
- 🚀 Recycling and grinding — rubber, plastics and electronic waste become brittle at cryogenic temperatures and can be milled finely.
💡 Why Choose REAL GAZ
- ✅ Fast, uniform cooling — direct liquid contact removes heat quickly;
- 🧪 Inert medium — nitrogen does not react with the product or leave residues;
- 🎯 Scalable supply — from small dewars to bulk storage and process tanks;
- 🔒 Safe cold chain — insulated transfer lines and relief protection are specified for every installation;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- cryogenic vessel insulation performance tests;
- relief valve set-pressure checks;
- purity and moisture analysis of delivered liquid;
- inspection of hoses and cold-compatible fittings.
Cold-compatible materials such as austenitic stainless steel and copper must be used for piping, because carbon steel becomes brittle at cryogenic temperatures. Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ provides Cryogenic Liquid Nitrogen for industry, medicine and research in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. We help customers specify vessels, piping and cycle controls and then keep them supplied.
REAL GAZ — controlled cold, delivered on time.