The Wandfluh WDEFA04-AB3-1/x-T18 is a high-performance, direct operated proportional pressure relief valve designed as a screw-in cartridge. This compact valve is engineered for precise and continuous pressure limitation in hydraulic systems. Its direct operated design ensures a fast response time and excellent dynamic performance. The pressure can be adjusted proportionally to the electrical current applied to the solenoid, making it ideal for applications requiring variable and accurate pressure control. Built with high-quality materials, this valve offers reliability and a long service life for demanding industrial hydraulic circuits.