Bosch Rexroth SL10GB1-42 R900451135 Hydraulic Check Valve

Bosch Rexroth SL10GB1-42 R900451135 hydraulic check valve is a compact one-way isolation valve that blocks backflow from a single actuator port when the control signal is absent, part of the SL 10 GB1 family. It is designed for leakage-free blocking during extended idle periods and supports both subplate mounting and threaded connections, enabling flexible installation in compact manifolds. Porting patterns follow ISO 5781 standards with NG10, NG20, and NG32 size options to suit different system ports. The R900451135 variant can accommodate multiple cracking pressures and offers optional integration with other valve components such as a directional spool or directional seat valve, including an optional pilot oil return. Typical applications include isolating actuators, protecting circuits from backflow, and ensuring reliable one-way flow in tight-space hydraulic circuits.