A flow-control valve sets the rate of oil passing through a line and, with it, the speed of the cylinder or motor that line feeds. What separates it from a plain throttle is pressure compensation: an internal compensator holds the pressure drop across the metering orifice constant, so the flow you set stays where you set it as the load on the actuator changes. That is what you want wherever a machine has to move at the same speed loaded and unloaded — feed axes, clamping, and lift and lower circuits.
| Brand | Bosch Rexroth |
| Material number | R900228321 |
| Product | Flow-control Valve |
| Category | Flow Control Valve |
| Availability | Quoted on request · many items ex-stock |
Ordering this part
The material number is the part we work from. If you are matching a unit already on a machine, the number stamped on its body is the definitive identifier — send us that, with a photograph of the nameplate if you have one, and we will confirm the current part, the price and the lead time. Where Bosch Rexroth has superseded a number we will tell you what replaces it rather than quoting something that can no longer be supplied.
Buying from an appointed distributor
Twin Hydraulics Engineering is a Bosch Rexroth Certified Excellence Distributor. Parts are genuine and carry manufacturer warranty. We hold Rexroth control hardware in stock at Shah Alam, and both our Shah Alam and Butterworth workshops have Bosch Rexroth test benches, so a repaired pump, motor or valve is proven under load before it goes back on your machine. Open 9.00am to 6.00pm, Monday to Friday.





