The rotary socket with shut-off valve quick coupling EWO series EW-411 SAFETY DN 7.4 is a high-performance solution designed for maximum safety and efficiency in pneumatic systems. Featuring a one-sided shut-off mechanism, it allows disconnection without pressure and is equipped with a convenient push-button lock. The innovative two-step operation ensures safe handling: the first press vents the coupling while keeping the plug secured, and the second press releases the plug without recoil, fully compliant with ISO 4414 and EN983 standards. Its rotatable design enables flexible positioning of the button even under pressure, ensuring user comfort and easy integration into any installation. Recommended for use with durable steel plugs in EURO DN7.2 profile, the socket is built from premium materials: galvanized steel, anodized aluminum, nickel-plated brass, and stainless-steel springs and balls, guaranteeing long-lasting reliability. With an impressive airflow capacity of 1960 l/min at 6 bar, a working pressure up to 16 bar, and a wide operating temperature range from -20°C to +100°C, it delivers outstanding performance in demanding environments. Available on request in multiple colors or in full stainless-steel construction, this quick coupling combines safety, versatility, and durability, making it an ideal choice for professional pneumatic applications.