山东省聊城市市场监管局发布2025年燃气紧急切断阀产品质量市级监督抽查结果

Core Viewpoint - The quality inspection results for gas emergency shut-off valves in Liaocheng, Shandong Province, indicate that all tested products met the required standards, ensuring safety and compliance in the market [2][3]. Group 1: Inspection Results - The inspection was conducted according to the national standards GB 44016-2024, focusing on key performance metrics such as pressure strength, torsional resistance, bending performance, gas tightness, electrical safety, and emergency shut-off performance [2]. - A total of 2 batches of gas emergency shut-off valves were tested, and all were found to be compliant with the quality standards [3]. Group 2: Product Knowledge and Consumer Tips - Safety certification and compliance are crucial for ensuring the reliable operation of shut-off valves, which are classified as special equipment related to life safety in China. Consumers should verify that products have a valid testing report from an authoritative third-party inspection agency [4]. - Key performance parameters include ensuring that the interface dimensions match the home gas pipeline and that the valve can handle the rated pressure of the gas used. A good shut-off valve should close quickly (typically in less than 1 second) and maintain zero leakage after closure [5]. - The preferred materials for the valve body are brass or stainless steel, which provide corrosion resistance and high strength, ensuring long-term stability in gas environments [6]. - Installation must be performed by qualified professionals to prevent gas leaks and valve failures. Post-installation, a tightness test is required, and regular manual tests should be conducted to ensure the valve remains in good working condition [7].