The Bosch Rexroth SV 10 PB1-4X/V is a highly reliable, pilot-operated check valve engineered for precision hydraulic fluid control. Utilizing a leak-free poppet-type seat valve design, it permits free flow from port A to port B while securely blocking flow in the reverse direction (B to A). Reverse flow is only enabled when sufficient hydraulic pilot pressure is applied at the pilot port X. Designed for robust plate and subplate mounting, this nominal size 10 valve from the 4X series is equipped with premium FKM (fluorocarbon) seals, ensuring exceptional durability and resistance to harsh hydraulic fluids and elevated operating temperatures.