THROTTLE CHECK VALVE Z2FS6-3-4X/1QV

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The Bosch Rexroth Z2FS6-3-4X/1QV (R900586224) is a high-performance industrial hydraulic valve designed for reliable flow regulation. This direct-actuated valve features a lockable rotary knob with a scale for precise flow adjustments and fine-tuning capabilities. The spool symbol indicates that it can be configured in A A, B B or A A, B B, mechanically actuated formats. The Z2FS6-3-4X/1QV serves as a twin throttle check valve in a sandwich plate design, which is implemented for controlling the main or pilot flow limitation of one or two actuator ports. Its symmetrical alignment allows for the limitation of flows in one direction while enabling free return flow in the opposite direction. The axial adjustment of the throttle spool via the setscrew allows for setting the throttling point to manage fluid velocity. This valve can be used for both supply and discharge throttling depending on its position within the hydraulic system. For main flow limitation applications, it is typically installed between the directional valve and subplate to adjust actuator velocity. In pilot-operated directional valves, it's used to adjust switching times by being placed between the pilot control valve and main valve. The Z2FS6-3-4X/1QV conforms to NFPA T..R D and CETOP D size standards, with porting patterns according to DIN and ISO with locating holes. It offers multiple adjustment types including a setscrew with lock nut and protective cap, as well as a spindle with internal hexagon and scale. The maximum operating pressure is indicated at bar levels while it supports maximum flow rates measured in liters per minute (l/min). It also incorporates FKM seals compatible with various hydraulic fluids like HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR ensuring versatility across different hydraulic systems.