Rexroth Z2FS 6 Pilot Operated Throttle Check Valve

Description

This is a Z2FS 6 A2-44/2QV sandwich plate valve from Bosch Rexroth, a leading manufacturer in drive and control technologies. It is a pilot-operated throttle check valve designed to control the flow rate of an actuator in one direction while allowing free flow in the opposite direction. This model offers meter-in control in both A and B ports, making it ideal for applications requiring precise speed control of hydraulic cylinders or motors. The NG6 (CETOP 3) mounting pattern ensures easy integration into standard hydraulic manifolds.

Specifications

• Manufacturer: Rexroth
• Type: Z2FS 6 A2-44/2QV
• Part Number (MNR): R900439389
• Valve Type: Pilot Operated Throttle Check Valve
• Mounting: Sandwich plate design
• Nominal Size: NG6 (CETOP 3)
• Maximum Operating Pressure: 315 bar
• Adjustment: Screw with lock nut
• Seal Material: FKM (Viton)

Label Info

• FD: 45516
• Serial: 124301846

Application

Suitable for use in general industrial machinery, machine tools, presses, and material handling equipment where precise speed control of hydraulic actuators is required.

Country of Origin

Made in Germany

CO2 Impact

By purchasing this pre-owned valve, you are contributing to a circular economy and helping to avoid 3.6 kg of CO2 emissions associated with new production. This is equivalent to the emissions from driving a car for 18 km.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The Z2FS 6 series is typically rated for a maximum operating pressure of 315 bar (4568 PSI). Always confirm with the specific product datasheet for your application.

FKM (Viton) seals are compatible with a wide range of hydraulic fluids, including mineral oils (HL, HLP), synthetic esters, and water glycols. They offer excellent temperature and chemical resistance.

The flow rate is adjusted by turning the setscrew on the side of the valve. Turning it clockwise typically reduces the flow (throttles more), while turning it counter-clockwise increases the flow.

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Last Update: March 13, 2026