The DN 9 quick coupling plug with external BSP or metric thread is a versatile and reliable solution designed for demanding industrial applications. Available with or without valve, it ensures secure and efficient connections in systems requiring precise temperature and pressure control. With a 9 mm flow diameter, 25 bar working pressure, and operating range from -20°C up to +200°C (with Viton sealing), it is perfectly suited for cooling injection molds, die-casting of plastics, aluminum, brass, and zinc alloys, as well as for use with water in cleaning equipment, hot oil, or steam. The robust construction combines a brass body and valve with a stainless-steel spring, guaranteeing durability, resistance to wear, and long service life even under intensive operating conditions. This quick coupling plug provides a dependable and user-friendly solution that enhances process efficiency, minimizes downtime, and supports high-performance production environments.