GB/T 17878-2009 in English

This standard specifies the technical requirements, testing methods, and marking for valves used in non-refillable welded steel cylinders for industrial applications. It covers aspects such as material selection, structural design, performance under various conditions, and safety considerations. The standard ensures that the valves meet the necessary quality and safety standards to prevent leaks, ruptures, or other failures during the service life of the cylinders. Detailed specifications are provided for dimensions, pressure ratings, and compatibility with different types of gases. It also includes requirements for manufacturing processes, inspection, and testing procedures to guarantee consistent product quality. The information provided is intended to assist manufacturers, users, and regulatory bodies in ensuring the safe and reliable operation of non-refillable welded steel cylinders in industrial environments.