Bosch Rexroth | 4WRLE10Q4-85M-3XG24TK0A1M
4WRLE10Q4-85M-3X/G24TK0/A1M
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The 4WRLE10Q4-85M-3X/G24TK0/A1M is a proportional solenoid valve in the 4WRL Solenoid Valves series from Bosch Rexroth. Designed for closed-loop hydraulic automation, it accepts a ±10 V command signal with an input impedance of 100 kΩ, so standard motion controllers can drive it without excessive current draw. The electronics operate from a 24 VDC supply and remain functional between 19 VDC and 36 VDC, accommodating common industrial power fluctuation. A maximum residual ripple of 2.5 Vpp prevents supply noise from disturbing spool position. Continuous service is supported by a 100 % duty cycle, while peak electrical demand is limited to 40 VA to simplify power sizing. The enclosure meets IP65, allowing installation in dusty or damp plant areas, and NBR seals maintain compatibility with petroleum-based hydraulic fluids. At 9 kg, the valve can be mounted directly on manifolds without additional structural reinforcement.
The hydraulic body is built for 350 bar on ports P, A, and B when an external drain is used, letting it handle high-pressure circuits in presses or test rigs. If the drain is routed internally, the same ports are limited to 280 bar, which prevents casing stress when return flow is confined inside the valve. Port X carries pilot pressure and tolerates up to 280 bar, matching the internal rating of the main flow paths. Ports T and Y are designated for tank return and case drain, and they are restricted to 250 bar to protect downstream plumbing. A minimum pilot pressure of 10 bar is required to shift the spool reliably, ensuring stable actuation even when system pressure is low. These limits define safe operating envelopes for designers who must size pumps, accumulators, and relief valves around this component.
Technical Specifications
Command Signal (a1)
±10 V
Duty Cycle
100%
Input Impedance (a1)
100 kΩ
Max Operating Pressure P/a/b (external)
350 bar
Max Operating Pressure P/a/b (internal)
280 bar
Max Power Consumption
40 VA
Max Pressure Port X
280 bar
Max Pressure Ports T, Y
250 bar
Max Residual Ripple
2.5 Vpp
Minimum Pilot Pressure
10 bar
Protection Class
IP65
Seal Material
NBR
Supply Voltage
24 VDC
Supply Voltage Max
36 VDC
Supply Voltage Min
19 VDC
Weight
9 kg
1620 Old Apex Road
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