Rexroth Type 4WMM6 Valve | 4WMM6E 4WMM6G 4WMM6J 4WMM6H | NG6 Manual Lever Valve

Rexroth Type 4WMM6 Series Manual Lever Directional Valves

Product Overview: The 4WMM6 Series is a direct-operated directional spool valve actuated by a hand lever, featuring the global standard Size 6 (NG6 / CETOP 03) mounting interface. As these valves are purely mechanically driven and require no electrical power, they are the premier choice for mobile hydraulics, outdoor machinery, hazardous/explosion-proof environments, and emergency backup control systems.

This category highlights primary configurations from the 50B sequence: including the 3-position closed-center 4WMM6E50B, the P-to-T unloading 4WMM6G50B, and the detented versions 4WMM6J50B/F and 4WMM6H50B/F.

Key Technical Advantages:

• Pure Mechanical Control: No solenoids or electronics required. Its simplified design offers extreme durability in high-humidity, explosive, or off-grid environments.

• Precise Tactile Feedback: The optimized lever linkage provides a clear sense of shifting, allowing operators to easily identify spool positioning by feel.

• High Reliability & Pressure Rating: Precision-cast from high-strength iron, the body handles pressures up to 315 Bar. The spacious internal galleries minimize pressure drop for enhanced system efficiency.

• Versatile Positioning Options: Available with spring return (standard) or mechanical detent (/F suffix), catering to both momentary switching and sustained position holding.

Detailed Specifications & Parameters:

• Core Series: Rexroth Type 4WMM6 Series.

• Featured Model Matrix: 4WMM6E50B, 4WMM6G50B, 4WMM6J50B/F, 4WMM6H50B/F.

• Core Performance Specs:

  • Nominal Size: Size 6 (NG6 / CETOP 03).

  • Actuation Type: Hand Lever Operated.

  • Max Operating Pressure: Rated up to 31.5 MPa (315 Bar / 4,500 PSI).

  • Max Flow Capacity: Up to 60 L/min (15.8 GPM).

  • Design Sequence: 50B Series.

  • Positioning: Spring return or Mechanical detent (/F).