Description
📋 Product Description
The Bosch Rexroth 4WRTE-42/M (R900891138) is a pilot-operated proportional directional control valve designed for precise hydraulic flow control. It belongs to the 4WRTE high-response valve family, which uses electrical position feedback and integrated onboard electronics (OBE) to regulate the direction and rate of hydraulic flow. This valve family supports closed-loop control of position, velocity, pressure, and force in industrial hydraulic systems. The 4WRTE-42/M is identified as a pilot-control valve associated with compatible 4WRTE main-stage configurations. Confirm the complete valve assembly, control signal, hydraulic connections, and nameplate details before ordering.

4WRTE-42/M R900891138
⚙️ Product Parameters & Datasheet
- Brand: Bosch Rexroth
- Model: 4WRTE-42/M
- Material Number: R900891138
- Additional Reference Number: R901273422; verify its relationship to the supplied assembly
- Series: 4WRTE, component series 4X
- Product Name: Proportional Directional Control Valve / Pilot-Control Valve
- Valve Type: Pilot-operated proportional directional valve family
- Control Electronics: Integrated onboard electronics on compatible 4WRTE assemblies
- Position Feedback: Electrical spool-position feedback on applicable configurations
- Control Applications: Hydraulic flow, position, velocity, pressure, and force regulation
- Nominal Size: Depends on the complete valve assembly; the suffix 4WRTE-42/M alone does not establish the main-stage size
- Maximum Operating Pressure: Up to 350 bar for the 4WRTE family; confirm the specific assembly rating
- Rated Flow: Depends on nominal size and spool configuration
- Supply Voltage: 24 VDC for the applicable integrated-electronics configuration; verify the nameplate
- Control Signal: Configuration-dependent; common versions support ±10 V or 4–20 mA
- Mounting: Subplate mounting on compatible ISO 4401 interfaces
- Place of Manufacture: Germany, as indicated by product information; verify the individual unit label
- Product Status: Confirm actual stock condition
- Dimensions: Depend on the complete valve assembly; consult the applicable drawing
- Weight: Not verified for the supplied configuration
- Country of Origin: Germany, subject to confirmation from the product label
- Power Requirements: Confirm the exact electrical interface and hydraulic pilot-supply arrangement
- Discontinued: Current lifecycle status requires confirmation
🔧 Recommended Models
The following Bosch Rexroth models belong to the related 4WRTE proportional valve family. They have different sizes, flow ratings, spool configurations, and control options, so they are not automatic replacements.
- R900954277 — 4WRTE 16 V200L-42/6EG24K31/A1M — Size 16 proportional directional valve configuration.
- R900247455 — 4WRTE 16 V200L-43/6EG24K31/A5M — Size 16 valve with a different configuration.
- R901151211 — 4WRTE 10 E100L-4X/6EG24EK31/F1M — Size 10 valve with 4–20 mA interface.
- R900954239 — 4WRTE 10 E100L-4X/6EG24ETK31/A1M — Size 10 valve with ±10 V interface.
- R900973962 — 4WRTE 10 E100L-4X/6EG24ETK31/F1M — Size 10 valve with 4–20 mA interface.
- R900954240 — 4WRTE 10 E100L-4X/6EG24K31/A1M — Size 10 valve with ±10 V interface.
- R901060594 — 4WRTE 10 E100L-4X/6EG24K31/F1M — Size 10 valve with 4–20 mA interface.
- R900720978 — 4WRTE 10 E100P-4X/6EG24EK31/A5M — Size 10 valve with fine-control flow characteristic.
- R901098187 — 4WRTE 10 E1-100L-4X/6EG24EK31/F1M — Size 10 variant with a different spool configuration.
- R900714380 — 4WRTE 10 E1-100L-4X/6EG24K31/A5M — Size 10 proportional valve variant.
- R901349428 — 4WRTE 10 E1-100L-4X/6EG24K31/F1M — Size 10 valve with 4–20 mA interface.
- R900759658 — 4WRTE 10 E1-100P-4X/6EG24K31/A1M — Size 10 valve with fine-control flow characteristic.
- R900710061 — 4WRTE 10 E1-100P-4X/6EG24K31/A5M — Size 10 valve with a different control interface.
- R900954241 — 4WRTE 10 E50L-4X/6EG24ETK31/A1M — Size 10 valve with 50 l/min nominal flow designation.
- R900954253 — 4WRTE 10 E50L-4X/6EG24K31/A1M — Size 10 valve with a different pilot-supply configuration.
Compatibility note: Bosch Rexroth 4WRTE valves must be matched by the complete type code and material number. Verify the main-stage valve, pilot valve, nominal size, spool symbol, rated flow, control signal, pilot-oil arrangement, and seal material before replacement.
