The quick coupling socket DN12 from the 57 KB series is a high-performance solution designed for efficient transfer of liquids and gases, offering exceptional reliability and versatility in demanding applications. Available with either external or internal BSP thread, it ensures flexible installation and compatibility with various systems. Depending on the plug used, the coupling can provide either unidirectional or bidirectional shut-off, guaranteeing safe and controlled operation. With a working pressure of up to 35 bar and impressive flow rates—up to 4700 l/min for air and 91.7 l/min for water—it delivers outstanding efficiency even under challenging conditions. The robust construction combines nickel-plated brass for the body, nickel-plated steel for the locking sleeve, and stainless steel for critical components such as the spring, ring, and locking balls, ensuring long-lasting durability and resistance to wear. High-quality NBR sealing provides reliable protection against leaks, while the wide operating temperature range from -20°C to +100°C makes the socket suitable for diverse industrial environments. This quick coupling socket is the ideal choice for professionals seeking maximum performance, safety, and durability in fluid and gas handling systems.