In laboratory gas pipeline systems, the stability of gas transmission directly affects experimental accuracy. Stainless steel two-way connectors play a crucial role in achieving leak-proof connections between gas pipes. Unlike plastic connectors that are prone to aging and cracking, stainless steel two-way connectors feature a precision-machined thread structure and tight sealing design. When connecting 316L stainless steel gas pipes, they form a reliable seal that controls the leak rate below 1×10⁻⁹ Pa·m³/s. For example, in a pharmaceutical laboratory's high-purity nitrogen pipeline, stainless steel two-way connectors ensure that the gas purity remains above 99.999% during transmission, avoiding contamination caused by external air infiltration. Their corrosion-resistant property also prevents chemical reactions between the connector and the gas, making them suitable for transmitting various inert and reactive gases.