The quick coupling adapter, featuring a socket DN 6 and plug DN 9, is a versatile and reliable solution designed for demanding industrial applications. Available with or without a valve, it ensures secure and efficient connections in processes that require precision and durability. Widely implemented in cooling systems for injection molds and casting components made of plastics, aluminum, brass, and zinc alloys, it also proves highly effective in water circuits of cleaning machines, as well as in installations using hot oil or steam. With a flow diameter of 6 mm, a working pressure capacity of up to 25 bar, and an impressive operating temperature range from -20°C to +200°C (with viton sealing), this adapter guarantees consistent performance even under extreme conditions. The robust construction combines a brass socket body, connection, and valve sleeve with stainless steel springs, rings, and balls, ensuring long-lasting resistance to wear, corrosion, and thermal stress. Engineered for efficiency and reliability, this coupling adapter enhances process safety, minimizes downtime, and delivers optimal flow performance, making it an essential component for industries seeking high-quality, durable, and easy-to-use connection solutions.