The quick coupling socket DN5.5, series 1423KA, is a robust and high-performance solution designed in accordance with ISO 6150B (A-A-59439, MIL C-4109) standards, ensuring reliability and compatibility in demanding industrial applications. Equipped with the advanced ULTRA-FLOW valve, it guarantees excellent flow efficiency, delivering up to 940 l/min at 6 bar with minimal pressure drop. The body is manufactured from hardened steel using the QPQ salt bath carbonitriding process, providing outstanding resistance to wear and corrosion while giving the socket its distinctive black finish. The ergonomic locking sleeve, made of impact-resistant material, ensures secure handling and easy operation even in intensive use. With a working pressure of up to 35 bar and an operating temperature range from -20°C to +100°C, this coupling is engineered for versatility and durability. Premium materials such as nickel-plated brass for the connection part, stainless steel for springs, balls, and rings, and NBR sealing guarantee long-lasting performance. Ideal for compressed air systems and a wide range of industrial environments, this socket combines strength, safety, and efficiency to optimize your operations.