REXROTH Z2FS 6 A2-44/2QV R900439389

<h2>Rexroth Z2FS 6 Hydraulic Throttle Check Valve</h2> <h3>Description</h3> <p>This is a Z2FS 6 A2-44/2QV throttle check sandwich plate valve from Bosch Rexroth. It is a size 6 (NG6 / CETOP 3) component designed for precise control of fluid flow in hydraulic systems. This model provides meter-in and meter-out control in port A, allowing for fine adjustment of actuator speed. The robust construction ensures long-term reliability in demanding industrial environments. The valve is equipped with FKM (Viton) seals, making it compatible with a wide range of hydraulic fluids.</p> <h3>Specifications</h3> <ul> <li>Manufacturer: Rexroth (Bosch Group)</li> <li>Type: Z2FS 6 A2-44/2QV</li> <li>Material Number: R900439389</li> <li>Function: Throttle Check Sandwich Plate Valve</li> <li>Size: NG6 (CETOP 3)</li> <li>Control: Meter-in and meter-out in port A</li> <li>Seals: FKM (Viton)</li> <li>Maximum Operating Pressure: up to 315 bar</li> </ul> <h3>Label Info</h3> <ul> <li>MNR: R900439389</li> <li>FD: 45516</li> <li>Type: Z2FS 6 A2-44/2QV</li> </ul> <h3>Application</h3> <p>Ideal for applications requiring precise speed control of hydraulic cylinders or motors. Commonly used in machine tools, pressing equipment, and general industrial machinery where flow regulation is critical for process control.</p> <h3>Country of Origin</h3> <p>Made in Germany.</p> <h3>CO2 Impact</h3> <p>By purchasing this pre-owned item, you are helping to avoid the CO2 emissions associated with new manufacturing, estimated at 3.0 kg for this product. This is a tangible contribution to a more sustainable industrial sector.</p> <h3>Availability</h3> <p>This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.</p> <h3>FAQ</h3> <strong>What is the maximum operating pressure for this Z2FS 6 valve?</strong><br><p>The Z2FS 6 series valves are typically rated for a maximum operating pressure of 315 bar (4568 PSI). Always confirm with the specific datasheet for your application.</p> <strong>What type of hydraulic fluid is compatible with the ‘V’ designation for seals?</strong><br><p>The ‘V’ in the type code stands for FKM (Viton) seals. These are suitable for mineral oils (HL, HLP), synthetic fluids (HFD), and have excellent temperature and chemical resistance.</p> <strong>How is the flow adjusted on this valve?</strong><br><p>The flow rate is adjusted by turning the adjustment element, which can be a screw with a protective cap or a locknut and setscrew, on the side of the valve body. Clockwise rotation typically increases throttling (reduces flow).</p> <p><em>spareparts2day is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.</em></p> <p>Last Update: Friday, March 13, 2026</p>