The Rexroth Z1S10TA30-2TB9-4 is a high-performance, pilot-operated check valve designed for reliable hydraulic systems. As a sandwich plate valve of size 10, it is engineered for vertical stacking assemblies, conforming to ISO 4401 porting patterns. Its primary function is the leakage-free blocking of one actuator port, ensuring the actuator’s position is maintained even during standstills. This model features a check valve in channel A with a 3 bar cracking pressure and includes a pre-opening function for cushioned decompression, which effectively prevents switching shocks and enhances system stability. Built for durability and precision, this valve is an essential component for controlling flow and maintaining pressure in demanding industrial applications.