The DN 9 quick coupling socket with internal BSP or NPT thread 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 such as cooling injection molds and die-cast components made of plastics, aluminum, brass, or zinc alloys. Its robust construction allows it to be used not only for water in cleaning systems but also for hot oil and steam, making it an excellent choice for industries requiring flexibility and durability. With a flow diameter of 9 mm, a working pressure of up to 15 bar, and an impressive operating temperature range from -20°C to +200°C (Viton), this coupling guarantees consistent performance even under extreme conditions. The body, connection, and valve sleeve are made of high-quality brass, while the spring, ring, and balls are crafted from stainless steel, ensuring long-lasting resistance to wear, corrosion, and thermal stress. Engineered for efficiency and reliability, this coupling socket is the perfect component for optimizing production processes, minimizing downtime, and enhancing operational safety across a wide range of industrial environments.