Shandong Yongan Special Equipment Co.,Ltd

Our high-performance cryogenic liquid cylinders (Dewars) are designed for the safe transportation and storage of liquefied gases at cryogenic temperatures.
Featuring advanced multi-layer super vacuum insulation technology, our cylinders offer the lowest evaporation rates and longest holding times in the industry.
Technical specifications. Standard compliance: manufactured according to DOT-4L, EN1251, ISO21029, or ASME standards.

Material: high-quality 304/316 stainless steel for extreme durability and cleanliness.
Water capacity: 80L, 100L, 120L, 175L, 195L, 210L, 450L, 500L.
Service pressure: 1.4 Mpa, 2.01 Mpa, 2.3 Mpa, 2.88 Mpa, 3.17 Mpa, 2.5 Mpa.
Test pressure: 2.8 Mpa, 4.02 Mpa, 4.6 Mpa, 5.76 Mpa, 6.34 Mpa, 5 Mpa.
Static evaporation rate: below 1.2%-2.1%, depending on medium and size, industry-leading vacuum retention.
Mediums: liquid oxygen (LO2), liquid nitrogen (LN2), liquid argon (LAr), liquid carbon dioxide (LCO2), and LNG.
Why YA special equipment?
70% market leadership: as a top-tier manufacturer in China, our cryogenic solutions are trusted by 70% of domestic gas infrastructure providers.
Global quality assurance: exported to 30+ countries, we understand the rigorous safety demands of major energy players like Air Liquide.
Integrated vaporizer: high-quality internal vaporizer ensures a continuous and stable gas supply for your equipment.
Full testing suite: every unit undergoes helium mass spectrometer leak detection and rigorous vacuum testing in our gas cylinder lab.

Key features. Reinforced stainless steel outer shell for harsh industrial environments. Color-coded pressure gauges and easy-to-read liquid level indicators.
Integrated shock-absorbing base for safer transportation.
Applications. Medical oxygen supply, metal fabrication (welding/cutting), food and beverage (flash freezing), laboratory research, and clean energy (LNG).