The rotary socket with shut-off valve quick coupling EWO series EW-411 SAFETY DN7.4 is a high-performance solution designed for maximum safety and efficiency in pneumatic systems. Equipped with an external or internal BSP thread, it ensures versatile installation and easy adaptation to various setups. Thanks to its innovative push-button locking mechanism, the coupling can be disconnected without pressure, guaranteeing user protection and compliance with ISO 4414 and EN983 standards. The rotary design allows the button to be conveniently positioned after installation, enhancing ergonomics and accessibility. The disconnection process is carried out in two secure stages: the first press vents the coupling while keeping the plug locked, and the second press releases the plug for safe removal. Compatible with the widely used EURO standard DN7.2, it is recommended to use durable steel plugs for optimal performance. Built from robust materials—galvanized steel, anodized aluminum, nickel-plated brass, and stainless steel components—the coupling ensures long-lasting reliability even in demanding conditions. With an impressive airflow capacity of 1800 l/min at 6 bar, a working pressure of up to 12 bar, and an operating temperature range from -10°C to +90°C, it delivers consistent performance. NBR sealing further enhances durability, making this coupling an ideal choice for professional applications requiring safety, efficiency, and reliability.