HD – WMD – Directional Control Valve Manual Operated
Achieve absolute, tactile flow direction control with the HD WMD Series Manual Operated Directional Control Valve. Available through Thm Hydraulics, this direct-controlled spool valve is engineered for applications where human precision and manual reliability are paramount. Designed to handle maximum operating pressures up to 315 bar and flow rates reaching 120 L/min, the WMD series is the perfect solution for machinery operating in remote areas, mobile equipment, or systems where electrical power is unavailable or undesired. With its rugged hand-lever actuation and standardized mounting, this valve provides dependable shifting for a wide range of industrial and mobile hydraulic tasks.
Core Technical Specifications:-
- Component Architecture: Manual Lever Operated Directional Spool Valve
- Nominal Sizes: Size 6 (NG6) and Size 10 (NG10)
- Maximum Operating Pressure: Up to 315 bar
- Maximum Flow Capacity: Up to 120 L/min (Size 10)
- Mounting Style: Subplate Mounting
- Standardization: Porting pattern to DIN 24 340 Form A, ISO 4401, and CETOP-RP 121H
Key Features & Engineering Advantages:-
- Ergonomic Manual Actuation: Features a robust, high-leverage hand lever that provides the operator with immediate, tactile feedback during shifting. This allows for smooth, modulated control of hydraulic actuators, which is essential for precision positioning.
- Rugged Direct-Controlled Spool: The simplified mechanical link between the lever and the spool minimizes internal moving parts, resulting in a highly reliable valve that thrives in harsh, high-vibration, or dirty environments where electronics might fail.
- Universal "Drop-In" Compatibility: Fully compliant with ISO 4401 and CETOP standards, ensuring the HD WMD valve can be used as a high-performance replacement on any standard manifold block without modification.
- High Flow-to-Pressure Ratio: Capable of managing substantial flow volumes (up to 120 L/min) while maintaining structural integrity under full 315 bar system pressure.
- Compact Subplate Mounting: Designed for clean, leak-free installation on hydraulic manifolds, allowing for a space-saving and organized assembly of the machine's control center.
Ideal Industry Applications:-
The manual reliability and high-pressure capacity of the HD WMD Valve make it the premier choice for:
- Mobile & Agricultural Machinery: Controlling boom, bucket, or attachment functions on tractors, loaders, and small excavators where simple lever control is preferred.
- Remote & Off-Grid Hydraulics: Serving as the primary control valve for log splitters, portable power units, and field repair equipment where electrical infrastructure is missing.
- Maintenance & Test Benches: Providing safe, manual directional switching for component testing and system troubleshooting in hydraulic workshops.
- Marine & Deck Equipment: Operating winches, davits, and small cranes in saltwater environments where electronic solenoid coils are prone to corrosion.
Why Choose the HD WMD Series?
- Zero Electrical Dependency: Eliminate the risk of downtime caused by blown fuses, broken wires, or failed solenoid coils; the WMD works as long as the operator is there.
- Precise Modulation: Unlike ON/OFF solenoid valves, the manual lever allows the operator to "feather" the flow, enabling much smoother starts and stops for sensitive loads.
- Global Standard Fitment: Adheres strictly to DIN/ISO/CETOP patterns, making it a versatile "shelf-standard" part for your entire fleet of hydraulic machinery.
