The ISO-A hydraulic quick coupling socket with shut-off valve and internal BSP thread is a reliable and versatile solution designed for demanding hydraulic systems. Manufactured from durable galvanized steel, it ensures long-lasting resistance to wear, corrosion, and intensive use in agricultural machinery, where it is most commonly applied. Known in the industry as “euro couplings,” these sockets are fully interchangeable with ISO-A quick couplings from other brands, providing flexibility and compatibility across various equipment. The NBR sealing guarantees secure and leak-free operation within a wide temperature range from -25°C to +100°C, making it suitable for diverse working environments. With a working pressure of up to 350 bar, depending on the coupling size, and a high safety factor of 4:1, the coupling delivers both performance and reliability under heavy-duty conditions. Optimized flow rates, measured at Δp = 3 bar, ensure efficient hydraulic oil transfer, supporting smooth and uninterrupted machine operation. This quick coupling socket is the ideal choice for professionals seeking robust, safe, and efficient hydraulic connections that enhance productivity and minimize downtime.