The DN 9 quick coupling socket with hose end, available with or without valve, is a versatile solution designed for demanding industrial applications. With a 9 mm flow diameter and a working pressure of up to 15 bar, it ensures reliable performance in processes requiring efficient cooling of injection molds and casting components made of plastics, aluminum, brass, or zinc alloys. Its robust construction allows safe use with water in cleaning systems, as well as with hot oil and steam, making it an ideal choice for environments where high durability and resistance are essential. The operating temperature range from -20°C to +200°C, supported by high-quality Viton sealing, guarantees consistent functionality even under extreme conditions. Manufactured from premium materials—brass for the socket body, connection, and valve sleeve, and stainless steel for the spring, ring, and balls—the coupling delivers long-lasting strength, corrosion resistance, and secure connections. This combination of reliability, versatility, and durability makes it a trusted component for optimizing industrial efficiency and ensuring uninterrupted workflows.