Modified on:
August 17,2026
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Supplier part number:
4401-03-02-0-94
Name: Proportional & Servo Directional Control Valve. - Proportional Directional Valve , 4/2 & 4/3 Way Version. - Direct Operated , With / Without Electrical Position Feedback. - Nominal Size 6. - Connection Location To ISO 4401. - Code : 4401-03-02-0-94. Description: Based on the search results, the following Bosch Rexroth proportional directional valves match your description for a direct-operated, NG6 valve with 4/2 and 4/3 way functionality and the ISO 4401 porting pattern .
🔧 Valve Types and Features
Bosch Rexroth 4WRA Series:
This series is available as 4/2 and 4/3 way, direct operated valves in a plate design .
It is operated by proportional solenoids controlled by external electronics .
The NG6 version is designated as 4WRA 6 .
Bosch Rexroth 4WRPE / 4WRPEH Series:
This is a 4/3 directional valve that is direct operated with electrical position feedback and integrated electronics (OBE) .
It is available with an IO-Link interface, making it suitable for Industry 4.0 applications .
The NG6 version is designated as 4WRPE 6 or 4WRPEH 6 .
Hydac P4WEE 6 Series:
This valve is a 4/3 proportional solenoid valve with integrated digital electronics .
It is a direct-acting valve that combines directional and velocity control .
📋 Key Technical Specifications (NG6)
Nominal Size: NG6 (CETOP 03 / D03)
Mounting Standard: The connection pattern conforms to ISO 4401-03-02-0-94 . This standard is common for NG6 valves and is sometimes seen as ISO 4401-03-02-0-05 .
Maximum Pressure: Up to 350 bar
Valve Types: 4/2 and 4/3 way designs are available .
Feedback: Versions are available with (e.g., 4WRPE) and without (e.g., 4WRA) electrical position feedback .
The valve type you select will depend on your specific requirements for control precision and whether you need integrated electronics. For detailed technical data sheets or specific material numbers, please consult the manufacturer's official documentation.
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