Bosch Rexroth | FES25CA-3X315LK4V
FES25CA-3X/315LK4V
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The FES25CA-3X/315LK4V throttle valve belongs to the FES Throttle Valves series and is manufactured by Bosch Rexroth for regulating bidirectional flow in hydraulic automation circuits. At a differential pressure of 10 bar, the valve delivers a nominal flow of 315 l/min, allowing stable actuator speed in medium-sized systems. When flow travels from port A to port B, the passage accommodates 360 l/min under the same pressure drop to support rapid cylinder extension, while reverse flow from port B to port A is capped at 330 l/min to keep retraction controlled. The body tolerates operating pressures up to 315 bar, so it can be installed in high-pressure manifolds. Flow from A to B starts once inlet pressure reaches 12 bar, and reverse flow requires 15 bar, thresholds that prevent unintended movement when system pressure is low. The unit is specified for mineral oil grades HL and HLP according to DIN 51524, and FKM seals maintain compatibility with these fluids at elevated temperature ranges. A mass of 3.8 kg provides solid seating without imposing excessive load on the mounting surface.
Electrical actuation relies on a 24 V DC solenoid that draws a nominal current of 1000 mA, supplying the force required to reposition the throttling element. Switching consumes only 3.9 cm³ of pilot oil, which supports rapid cycling in automated sequences. The pilot circuit withstands pressures up to 315 bar, matching the main stage so no separate pressure reducer is needed. Once energized, the valve responds with sensitivity better than 0.1 %, granting precise flow modulation for closed-loop speed control. The housing achieves an IP65 rating when a proper cable socket is fitted, shielding the coil from dust and low-pressure water jets during machine wash-down. Electrical connection is made through a plug conforming to DIN EN 175301-803, enabling straightforward integration with standard industrial harnesses.
Technical Specifications
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid
Mineral Oil (HL, HLP) DIN 51524
Max Flow A→b
360 l/min (Δp 10 bar)
Max Flow B→a
330 l/min (Δp 10 bar)
Max Operating Pressure
315 bar
Max Pilot Pressure
315 bar
Min Inlet Pressure A→b
12 bar
Min Inlet Pressure B→a
15 bar
Nominal Flow
315 l/min (Δp 10 bar)
Nominal Solenoid Current
1000 mA
Pilot Oil Volume For Switching
3.9 cm³
Protection Rating
IP65 (with cable socket)
Response Sensitivity
<0.1 %
Seal Material
FKM
Supply Voltage
24 V DC
Weight
3.8 kg
1620 Old Apex Road
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