Z2FS6 – Modular Throttle Valve Bosch Rexroth
The Bosch Rexroth Z2FS6 is a modular, sandwich-plate style twin throttle-check valve used to precisely regulate hydraulic fluid flow. It controls the speed of hydraulic actuators (cylinders or motors) by restricting the flow area in one direction while allowing free, unhindered return flow in the opposite direction through an integrated bypass check valve. Because it features independent throttling points for both fluid lines (ports A and B), a single Z2FS6 valve can manage both the forward and backward speeds of an actuator simultaneously. Its compact stackable design eliminates the need for extra piping, allowing it to be bolted directly underneath a directional control valve.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The Bosch Rexroth Z2FS6 is a direct-operated twin throttle-check valve featuring a space-saving sandwich plate design. It is explicitly engineered to meter and regulate fluid flow rates—and consequently control the velocity of hydraulic actuators—in one direction while allowing unrestricted free flow in the reverse direction.
| Category | Parameter / Property | Technical Detail / Functional Feature |
|---|---|---|
| Sizing & Standards | Component Size | Size 6 |
| Mounting Pattern | ISO 4401-03-02-0-05 / CETOP D03 | |
| Performance Limits | Max Operating Pressure | Up to 350 bar |
| Maximum Flow Rate | Up to 80 L/min | |
| Design & Structure | Housing Profile | Modular sandwich plate design |
| Flow Configuration | Twin throttle-check valve for ports A and B | |
| Operational Logic | Throttling Action | Limits flow speed in one direction |
| Return Flow Action | Unrestricted free flow via internal bypass check valve | |
| Adjustment Options | Control Elements | Internal hexagon screw, setscrew with locknut, or scaled knob |
| Fluid Compatibility | Seal Material | FKM (Viton) seals standard for mineral and synthetic oils |
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