The hydraulic screw quick coupling with shut-off valve, available as socket or plug with external metric thread DIN 2353 in both light and heavy series, ensures secure and reliable connections in demanding hydraulic systems. Its robust galvanized steel construction combined with NBR sealing guarantees durability and resistance to wear, while the additional O-ring in the socket body effectively prevents accidental loosening under pulsating pressure and vibration. Designed for use with hydraulic oil, the coupling allows safe connection under pressure up to 50 bar and withstands working pressures up to 450 bar depending on size, offering a high safety factor of 4:1 in line with ISO 14541 standards. With an operating temperature range from -25°C to +100°C, it delivers consistent performance in diverse conditions, while optimized flow characteristics ensure minimal pressure drop of just 3 bar. This makes it an ideal solution for power hydraulics applications where reliability, safety, and efficiency are critical.