Bosch Rexroth | 4WRTE16E1-125L-4X6EG24EK31A1M
4WRTE16E1-125L-4X/6EG24EK31/A1M
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The 4WRTE16E1-125L-4X/6EG24EK31/A1M valve is produced by Bosch Rexroth in the 4WRTE Directional Control Valves series and directs hydraulic flow in automated machinery. With a nominal size of NG16, the unit suits medium-capacity manifolds, and its ISO 4401-07-07-0-05 mounting pattern permits direct subplate installation. A recommended flow capacity of 460 l/min supports high-volume circuits, while 20 mm pressure ports sustain that throughput without excessive velocity. Main ports P, A, and B tolerate continuous service up to 350 bar, but the Y drain line must stay below 10 bar to protect the pilot stage. Pilot control oil reaches 14 l/min at 315 bar as the command shifts from zero to full stroke, and the pilot chamber volume of 2.9 cm³ establishes predictable response times during rapid spool movements.
A nominal 24 VDC supply powers the integrated electronics, and a ±10 V analog input under interface code A1 provides proportional position commands. Peak current draw is limited to 1.6 A, keeping maximum apparent power to 72 VA. The housing carries an IP65 rating, sealing the assembly against dust and low-pressure water jets encountered on mobile or outdoor equipment. Return flow through port T can be resisted up to 250 bar, enabling circuits that intentionally back-pressure the actuator. System oil must meet ISO 4406 cleanliness class 18/16/13 to avoid spool wear or blockage, and the complete valve weighs 11.2 kg, allowing a single technician to manage installation or removal.
Technical Specifications
Current Consumption (max)
1.6 A
Electrical Interface
±10 V (A1)
Hydraulic Cleanliness Class
ISO 4406 18/16/13
Max Operating Pressure (p, A, B)
350 bar
Max Return Pressure Port T (external)
250 bar
Maximum Flow (recommended)
460 l/min
Mounting Pattern
ISO 4401-07-07-0-05
Nominal Size
NG16
Pilot Oil Flow (0–100%, 315 Bar)
14 l/min
Pilot Oil Volume (0–100%)
2.9 cm³
Port Diameter (a, B, P, T)
20 mm
Port Y Pressure (static)
< 10 bar
Power Consumption (max)
72 VA
Protection Class
IP65
Supply Voltage (nominal)
24 VDC
Weight
11.2 kg
1620 Old Apex Road
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