THROTTLE CHECK VALVE Z2FS6A5-4X/1QV

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The Bosch Rexroth Z2FS6A5-4X/1QV (R900532275) is a high-performance industrial hydraulic valve designed for reliable throttling of flow to a set value. This direct-actuated valve features a spindle with an internal hexagon and scale for fine adjustments, providing precise control over hydraulic fluid flow. The spool symbol for this model is A A or A A, indicating its capability for various flow configurations. The Z2FS6A5-4X/1QV valve is part of the ZFS series, which includes twin throttle check valves in a sandwich plate design. These valves are typically used for the main or pilot flow limitation of one or two actuator ports. They operate by limiting flows in one direction while allowing free return flow in the opposite direction. When supply throttling is needed, the hydraulic fluid is directed through channel A via a throttling point created by the valve seat and throttle spool. Conversely, return flow from an actuator displaces the valve seat against a spring, functioning as an unobstructed check valve. For applications requiring actuator velocity adjustment through main flow limitation, this twin throttle check valve can be installed between the directional valve and the subplate. It’s also suitable for switching time adjustment in pilot-operated directional valves by being positioned between the pilot control valve and main valve. The Z2FS6A5-4X/1QV offers multiple adjustment types including setscrew with lock nut and protective cap, lockable rotary knob with scale, and spindle with internal hexagon and scale. It supports both supply or discharge throttling. The sandwich plate design conforms to DIN standards and ISO porting patterns with locating holes. This model has a component series X with a maximum operating pressure of 350 bar and can handle maximum flows up to 40 l/min. It's equipped with FKM seals making it compatible with various hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. The Bosch Rexroth Z2FS6A5-4X/1QV demonstrates versatility in hydraulic system applications where precise control of fluid dynamics is essential.