Bosch Rexroth R900473688 Hydraulic Control Valve

Rexroth R900473688 is a sandwich-plate throttle-check valve (Z2FS16-8-3X/S2V) designed to throttle flow to a set value for actuator velocity control in hydraulic circuits. The size-16, mechanically actuated unit features four ports in a two-position arrangement and incorporates two symmetrically arranged throttle-check valves that limit flow in one direction while allowing free return in the opposite direction. It is rated for up to 350 bar and can handle up to 250 L/min, and it weighs 4.38 kg; seals are FKM and porting follows ISO 4401-07-07-0-05. This sandwich-plate assembly is intended to be installed between a directional valve and the subplate, providing meter-in or meter-out throttling to tune actuator speed on one or two ports. The plate-and-valve configuration makes it a ready-to-mount throttle-check solution for applications requiring precise flow limitation on valve circuits.