The ISO-A hydraulic quick coupling socket with shut-off valve and internal BSP thread is a robust and reliable solution designed for demanding hydraulic applications. Its practical “push-pull” version ensures automatic disconnection in case of accidental hose tension, significantly increasing safety and convenience during operation. Engineered for use with hydraulic oil in power hydraulics, this coupling is widely applied in agricultural machinery and is commonly recognized as a “euro coupling.” Fully interchangeable with ISO-A quick couplings from other manufacturers, it guarantees compatibility and flexibility across different systems. Manufactured from durable galvanized steel, the socket offers excellent resistance to wear and corrosion, while the NBR sealing ensures secure and leak-free connections. With an operating temperature range from -25°C to +100°C and a working pressure of up to 250 bar, it delivers reliable performance even under extreme conditions. The 4:1 safety factor provides additional assurance of durability, while the optimized flow rate at Δp = 3 bar ensures efficient hydraulic performance. This quick coupling is the ideal choice for professionals seeking a high-quality, long-lasting, and versatile solution for modern agricultural and hydraulic systems.