The ISO-A hydraulic quick coupling socket with shut-off valve and external metric thread is a robust and reliable solution designed for demanding hydraulic systems. Featuring a practical “push-pull” mechanism, it ensures automatic disconnection in case of accidental hose tension, significantly enhancing operational safety and convenience. Engineered for use with hydraulic oil in power hydraulics, this coupling is widely applied in agricultural machinery, where it is commonly known as a “euro coupling.” Fully interchangeable with ISO-A quick couplings from other manufacturers, it guarantees compatibility and flexibility across various equipment. Manufactured from durable galvanized steel, it offers excellent resistance to wear and corrosion, while the NBR sealing ensures reliable performance in a wide temperature range from -25°C to +100°C. With a working pressure of 250 bar and a safety factor of 4:1, the coupling delivers dependable strength and durability even under intensive use. The flow capacity is precisely defined for a 3-bar pressure drop, ensuring optimal efficiency and consistent performance in hydraulic applications. This makes it an ideal choice for professionals seeking a high-quality, long-lasting, and safe hydraulic connection solution.