The NITTO KOHKI Series 350 CUPLA quick coupling plug with internal BSP and BSPT thread is a premium solution designed for demanding hydraulic applications. Engineered in Japan from high-grade nickel-plated alloy steel, it ensures exceptional durability, resistance to vibrations, and reliable performance under pulsating pressure conditions. Its advanced flat-face, leak-free design minimizes air inclusion, guaranteeing clean and efficient operation even in systems exposed to sudden pressure fluctuations, such as casting equipment. The coupling is user-friendly, allowing convenient one-hand operation, while its unique construction ensures that working pressure remains consistent regardless of size. With a wide operating temperature range from -20°C to +180°C, Viton sealing for superior chemical resistance, and a maximum working pressure of up to 345 bar, this coupling delivers outstanding reliability and safety. Optimized flow characteristics with a controlled pressure drop of 3 bar further enhance system efficiency, making it an ideal choice for professionals seeking long-lasting, high-performance hydraulic connections.