The ISO-A hydraulic quick coupling with shut-off valve and external metric thread is a reliable solution designed for demanding power hydraulics applications, particularly in agricultural machinery, where it is commonly known as a “euro coupling.” Manufactured from durable galvanized steel and equipped with an NBR seal, it ensures long-lasting resistance to wear, corrosion, and intensive use in the field. Fully interchangeable with ISO-A quick couplings from other producers, it offers maximum flexibility and compatibility, making it an excellent choice for both new installations and replacement needs. Engineered to operate within a wide temperature range from -25°C to +100°C and withstand working pressures up to 250 bar with a safety factor of 4:1, this coupling guarantees secure and efficient performance even under extreme conditions. With flow rates measured at Δp = 3 bar, it provides optimal hydraulic efficiency, ensuring smooth operation of agricultural equipment and minimizing downtime. This robust and versatile coupling is the ideal component for professionals seeking reliability, safety, and consistent performance in hydraulic systems.