Bosch Rexroth | 4WRTE16E125L-4X6EG24EK31A5M
4WRTE16E125L-4X/6EG24EK31/A5M
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The 4WRTE16E125L-4X/6EG24EK31/A5M directional control valve is produced by Bosch Rexroth for the 4WRTE Directional Control Valves series and is intended to meter flow and pressure in hydraulic automation loops. Size code 16 defines the port dimensions and flow range needed for mid-capacity manifolds. A linear flow characteristic allows proportional adjustment across the spool stroke. The unit tolerates 350 bar operating pressure so it fits high-pressure presses, molding machines, and test stands. Internal electronics run from a 24 V DC supply and draw up to 1.6 A, keeping conductor sizing moderate. Maximum apparent power is limited to 72 VA, permitting use with standard industrial power supplies. Command signals are received through a ±10 V interface that includes an enable line for safe shutdown control. An IP65 enclosure prevents dust ingress and water jets from affecting the solenoids.
Internally sourced pilot oil simplifies plumbing, while external return through port Y keeps pilot chambers free of back-pressure. The pilot stage passes 14 l/min at 315 bar so the spool can shift quickly under load changes. Tank return at port T must stay below a static 10 bar to protect seals and reduce energy loss. Voltage quality is maintained by limiting residual ripple to 2.5 Vpp, preventing dither in the command electronics. NBR sealing elements resist standard mineral oils and sustain long service intervals. A supply cleanliness level of ISO 4406 18/16/13 is required to avoid abrasion of the precision spool lands. The assembled valve weighs 11.2 kg, allowing one technician to mount it during machine build or service.
Technical Specifications
Cleanliness Class
ISO 4406 18/16/13
Current Consumption (max)
1.6 A
Electronics Interface
±10 V With Enable (A5)
Flow Characteristic
Linear (L)
Maximum Operating Pressure
350 bar
Pilot Oil Flow
14 l/min (@315 bar)
Pilot Oil Return
External (Port Y)
Pilot Oil Supply
Internal
Port T Return (internal)
10 bar (Static Max)
Power Consumption (max)
72 VA
Protection Class
IP65
Residual Ripple (max)
2.5 Vpp
Seal Material
NBR
Size (ng)
16
Supply Voltage
24 V DC
Weight
11.2 kg
1620 Old Apex Road
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