Bosch Rexroth | 4WRTE16V200L-4X6EG24K31A1M
4WRTE16V200L-4X/6EG24K31/A1M
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The 4WRTE16V200L-4X/6EG24K31/A1M directional control valve is produced by Bosch Rexroth within the 4WRTE Directional Control Valves series. It modulates flow rate and direction in automated hydraulic systems where precise actuation is required. The unit is manufactured in nominal size 16 (NG16), establishing standardized port spacing for compatible subplates. It mounts on an ISO 4401-07-07-0-05 interface, so exchange or service can be done with widely available manifold blocks. Each a, b, p, and t port is bored to 20 mm, a diameter that supports the flow volume associated with NG16 components. A pilot oil flow of 14 l/min feeds the internal control stage to move the main spool. The main pressure ports p, a, and b tolerate up to 350 bar, while the pilot stage is limited to 315 bar to maintain stable servo performance. Port T withstands 250 bar return pressure, preventing back-pressure from disturbing the metering edges.
The integrated amplifier of the valve operates from a 24 V DC supply. Reliable function is maintained across a voltage range of 18 V DC to 35 V DC, providing margin for fluctuating machine power buses. Analog commands are applied through a ±10 V A1 interface, allowing proportional control from standard motion controllers. The electronics draw a maximum of 1.6 A, so power sizing of the supply is straightforward. Supply ripple must stay below 2.5 Vpp to avoid signal distortion inside the amplifier. An IP65 housing protects the assembly from dust ingress and water jets typically found near hydraulic machinery. The hydraulic fluid cleanliness must reach ISO 4406 class 18/16/13, minimizing wear on the finely machined spool and sleeve. The valve has a mass of 11.2 kg, which remains manageable for one-person installation during maintenance.
Technical Specifications
Cleanliness Class
18/16/13 (ISO 4406)
Control Interface
±10 V (A1)
Current Consumption Max
1.6 A
Max Operating Pressure (p/a/b)
350 bar
Max Pilot Oil Supply Pressure
315 bar
Max Return Pressure (port T)
250 bar
Mounting Interface
ISO 4401-07-07-0-05
Nominal Size
16 (NG16)
Pilot Oil Flow
14 l/min
Port Diameter (a/b/p/t)
Ø20 mm
Protection Class
IP65
Residual Ripple Max
2.5 Vpp
Supply Voltage
24 V DC
Supply Voltage Max
35 V DC
Supply Voltage Min
18 V DC
Weight
11.2 kg
1620 Old Apex Road
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