Helium is a colorless, odorless and inert gas with completely inactive chemical properties. In industry, helium is mainly separated and refined from natural gas rich in helium to produce high-purity helium, which is then liquefied into liquid helium and transported to various parts of the world to be filled into helium cylinders.
High-purity helium gas is a high-pressure compressed gas and is used after being reduced in pressure by a pressure reducer. Please ensure the system is clean and free of leakage before use. After use, please close the bottle head valve. Do not use expired gas cylinders or those that have expired but not been inspected. Do not use air completely. Please retain a residual pressure of 0.2MPa. Cylinders should not be placed near fire or exposed to direct sunlight. Rough handling is strictly prohibited.
Due to the low temperature of liquid helium, when certain metals or metal compounds are cooled with liquid helium, the resistance of the metals or metal compounds will completely disappear. This phenomenon is called superconductivity, and this temperature is called the critical temperature.
Helium is widely used in military industry, scientific research, petrochemicals, refrigeration, medical care, semiconductors, pipeline leak detection, superconducting experiments, metal manufacturing, deep-sea diving, high-precision welding, and the production of optoelectronic products, etc.
When each bottle of helium gas reaches the exhaust gas, the residual pressure inside the bottle should be maintained at 0.5MPa and must not be lower than 0.25MPa. The bottle valve should be closed to ensure the quality of the gas and its usage.
Bottled helium gas should be classified and stacked during transportation, storage and use. It must not be close to open flames or heat sources. It should be kept away from fire, oil and wax, direct sunlight, heavy throwing and impact. Arcing or electric arc should not be initiated on the gas cylinder body. Rough handling is strictly prohibited. For short-distance movement of helium gas cylinders, special hand carts for cylinders should be used, and for long-distance movement, dangerous goods transport vehicles should be used.
Post time: Sep-09-2025