Bosch Rexroth | 4WRTE16V125P-4X6EG24TK31A1M
4WRTE16V125P-4X/6EG24TK31/A1M
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The 4WRTE16V125P-4X/6EG24TK31/A1M valve belongs to the 4WRTE Directional Control Valves series and is produced by Bosch Rexroth for closed-loop hydraulic automation. With a nominal size of NG16, it accommodates moderate flow while remaining compact, and the ISO 4401-07-07-0-05 porting pattern secures direct mounting on standard sub-plates. A maximum pressure of 350 bar on ports P, A, and B allows the main stage to drive actuators in high-pressure systems, whereas the pilot stage is limited to 315 bar to protect its proportional components. External pilot oil supply enables independent pressure regulation, and internal T return routes the pilot flow back to tank without extra hoses. The integrated electronics operate from a 24 V DC supply, drawing up to 72 VA and 1.6 A, values that dictate the rating of the machine’s power supply.
Electrical connection is made through a DIN EN 175201-804 plug with six signal contacts and protective earth, giving a secure interface for field wiring. The controller exchanges commands and feedback over a ±10 V analog signal, and a 100 kΩ input resistance minimizes loading on the motion card. Protection class IP65 shields the enclosure from dust and water jets, while the coil can withstand temperatures up to 150 °C during prolonged duty cycles. Hydraulic fluid must reach cleanliness class 18/16/13 according to ISO 4406 so that the precision spool and sensors function without sticking or wear. The overall weight of 11.2 kg affects manifold support and handling requirements during installation or service.
Technical Specifications
Cleanliness Class
18/16/13 (ISO 4406)
Command/actual Signal
±10 V (A1)
Electrical Connection
DIN EN 175201-804 (6+PE)
Input Resistance (a1)
100 kΩ
Max Coil Temperature
150 °C
Max Current Consumption
1.6 A
Max Pilot Supply Pressure
315 bar
Max Power Consumption
72 VA
Max Pressure P/a/b
350 bar
Nominal Size
NG16
Pilot Oil Return
Internal (T)
Pilot Oil Supply
External (T)
Porting Pattern
ISO 4401-07-07-0-05
Protection Class
IP65
Supply Voltage (nominal)
24 V DC
Weight
11.2 kg
1620 Old Apex Road
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