Product Overview

The Rexroth 4WE 10 D33/OFCW230N9K4 (Material No. R900915652) is a direct-operated, solenoid-actuated directional spool valve from the proven Rexroth 4WE 10 series. Designed for the control of start, stop, and direction of fluid flow in industrial hydraulic systems, this valve features a 4-way, 3-position (4/3) spool configuration with a “D” type center condition (all ports blocked in the neutral position). The valve is actuated by a high-performance wet-pin AC solenoid rated for 230V AC (50/60 Hz) with a nominal power consumption of approximately 30W, ensuring reliable and rapid spool shifting. The robust housing is constructed from high-tensile cast iron, and the precision-ground spool and bore assembly delivers minimal internal leakage and consistent response across the rated pressure range of up to 315 bar. With a nominal flow capacity of 100 L/min (NG10 / CETOP 5 size), this valve is engineered for direct pipe connection or manifold mounting in demanding industrial environments.

Technical Specifications

Engineering Features & Advantages

• Precision Performance: The integrated aC Solenoid, 230V AC (50/60 Hz), Wet-Pin Design ensures precise, repeatable control with low hysteresis and stable performance across the full working range.
• Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 100 L/min, supporting stable operation across the full working range.
• Model-Specific Fit: Supplied to the exact Rexroth code 4WE 10 D33/OFCW230N9K4 with standard N9 / K4 interfaces, so it fits existing 4WE installations without modification.
• Circuit-Matched Spool: The spool variant supplied matches this listing’s code; for a different centre condition or metering requirement, compare the related listings or send us your original code.

Typical Industrial Applications

With a nominal flow capacity of 100 L/min (NG10 / CETOP 5 size), this valve is engineered for direct pipe connection or manifold mounting in demanding industrial environments.

Understanding the Model Code: 4WE 10 D33/OFCW230N9K4

Each block of the Rexroth model code describes one attribute of the valve. Use this breakdown together with the specification table above to confirm the exact configuration you need:

Always verify the complete code and material number against the nameplate on your existing valve before ordering — body size, spool type and coil voltage must all match.

Choosing the Right Variant

This listing is the 230 V AC (50/60 Hz) version of the 4WE body. Coil voltage and spool type are the two attributes that decide compatibility in most retrofits — the same body size is available with different coils (EG24 / EW110 / W230 …) and different spools. Related listings:

• REXROTH 4WE 10 D33/CG24N9K4 / R900589933 Solenoid Directional Spool Valve
• REXROTH 4WE 10 D50/EG205N9K4/V / R901336182 Solenoid Directional Spool Valve

Frequently Asked Questions

Is the coil voltage important?
Yes. This unit uses a 230 V AC (50/60 Hz) solenoid; the coil is voltage-specific and must match your control circuit.

Can I change the coil voltage after installation?
The valve body is shared across the 4WE series, but the solenoid coil itself is voltage-specific; for a different supply voltage you need the matching coil (or the complete valve in that voltage variant). Confirm the coil part number with our team.

What do N9 and K4 mean?
N9 = concealed manual override for emergency actuation; K4 = plug connector to DIN EN 175301-803 (ISO 4400) — the standard electrical interface on most machines using 4WE valves.

What should I check before ordering?
Match the complete model code and material number (see nameplate) against your valve nameplate, and confirm your control-circuit voltage and spool requirement.

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