The straight coupling with internal BSP thread type AI 13500 is a reliable and versatile solution designed for secure connections of copper, brass, steel, aluminum, and plastic pipes, as well as flexible hoses such as polyamide. Suitable for external pipe diameters ranging from 4 to 22 mm, this coupling ensures a durable and leak-proof joint through a precise crimping process, where the ring is pressed onto the pipe and simultaneously tightened into the socket with a nut. Manufactured from high-quality brass, it guarantees excellent resistance to corrosion, mechanical stress, and long-term wear, making it ideal for demanding industrial, hydraulic, and pneumatic applications. Fully compliant with EN 1254-2 standards, the AI 13500 coupling combines safety, efficiency, and ease of installation, offering a professional-grade solution that reduces downtime and enhances system reliability. Its robust construction and universal compatibility make it a preferred choice for engineers, installers, and maintenance specialists seeking a dependable connection element that delivers consistent performance in both standard and high-pressure environments.