Bosch Rexroth | 4WRTE10V50L-4X6EG24ETK31A5M
4WRTE10V50L-4X/6EG24ETK31/A5M
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The 4WRTE10V50L-4X/6EG24ETK31/A5M valve is part of the 4WRTE Directional Control Valves series from Bosch Rexroth. It modulates hydraulic flow and pressure to position actuators in automated machinery. The valve is built in nominal size NG10 so it fits manifolds designed for that cavity. A rated flow of 50 l/min at a 5-bar differential across the control edge lets it handle medium-capacity circuits. The spool withstands a maximum operating pressure of 350 bar to suit high-pressure supply lines. Pilot oil is taken and returned internally, a configuration labeled ET, which removes the need for external pilot plumbing. Electronic control is provided through a ±10 V interface (code A5), and that signal sees an input resistance of 100 kΩ to minimize load on the controller. The electronics require a nominal supply of 24 VDC but remain functional down to 18 VDC, letting the device ride through brief voltage dips.
Peak current consumption is limited to 1.6 A, and the drive electronics draw at most 72 VA of power under full modulation. A continuous duty cycle of 100 percent allows the valve to stay energized without scheduled cooling periods. The internal amplifier tolerates residual ripple up to 2.5 Vpp on the supply, maintaining stable spool positioning when the DC bus is noisy. Environmental protection is rated at IP65, so the housing resists dust and low-pressure water jets common in factory wash-down zones. Return pressure in port T must stay below 10 bar, preventing back-pressure from affecting pilot stages. Hydraulic oil cleanliness must meet class 18/16/13 under ISO 4406 to avoid premature wear of metering edges. The assembly weighs 8.7 kg, which technicians should consider when selecting manifold supports.
Technical Specifications
Cleanliness Class (iso 4406)
18/16/13
Command/actual Value Interface
±10 V (A5)
Current Consumption (maximum)
1.6 A
Duty Cycle
100% (Continuous)
Input Resistance (voltage Input)
100 kΩ
Max Return Pressure (port T, Internal)
<10 bar
Maximum Operating Pressure
350 bar
Maximum Power Consumption
72 VA
Nominal Size
NG10
Pilot Oil Configuration
Internal Supply/Return (ET)
Protection Class
IP65
Rated Flow (Δp 5 Bar/control Edge)
50 l/min
Residual Ripple (max)
2.5 Vpp
Supply Voltage (nominal)
24 VDC
Supply Voltage Lower Limit
18 VDC
Weight
8.7 kg
1620 Old Apex Road
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