THROTTLE CHECK VALVE Z2FS6B2-4X/2Q

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The Bosch Rexroth Z2FS6B2-4X/2Q (R900423224) is a high-performance, industrial hydraulic twin throttle check valve designed for reliable throttling of flow to a set value. This direct-actuated valve features a setscrew with lock nut for precise control and easy adjustment. With a spool symbol of B B or B B, it can handle a maximum pressure and is part of the product group ID specified by the manufacturer. The Z2FS6B2-4X/2Q valve is mechanically actuated and comes in size B, suitable for various applications requiring flow limitation in one or two actuator ports. It ensures flows are limited in one direction while allowing free return flow in the opposite direction through two symmetrically aligned throttle check valves. This model is ideal for both main or pilot flow limitation, with its application versatility highlighted by its suitability for supply throttling or discharge based on installation position. The hydraulic fluid's return flow displaces the valve seat against the spring, enabling unobstructed flow as a check valve. For main flow limitation, this twin throttle check valve is typically installed between the directional valve and subplate to adjust actuator velocity. In contrast, for pilot flow limitation—used to adjust switching times—it's installed between the pilot control valve and the main valve. The Z2FS6B2-4X/2Q offers several adjustment types including a lockable rotary knob with scale and spindle with internal hexagon and scale. It's designed to be mounted as a sandwich plate valve with porting patterns according to DIN ISO standards, including locating holes for secure installation. With its maximum operating pressure of bar and maximum flow rate of l/min, this Bosch Rexroth hydraulic valve stands out for its robust construction using NBR seals suitable for various hydraulic fluids like HL, HLP, HLPD, HVLP, HVLPD, and HFC.