THM – 4WH/4WEH – Directional control valve
Command the absolute highest flow rates and extreme pressures in your heavy-duty hydraulic circuits with the THM 4WH / 4WEH Series Directional Control Valve. Available in versatile 4/2 and 4/3-way configurations, this series is engineered to perfectly control the start, stop, and direction of massive fluid flows. Offering both internally pilot-operated (4WEH) and externally pilot-operated (4WH) variants across sizes 10 to 32, this powerhouse valve safely manages immense flow rates up to 1100 L/min while sustaining maximum operating pressures of 350 bar. With highly customizable spool movement and shifting times, the 4WH/4WEH Series provides the unyielding reliability and precision required for the world's most demanding industrial and mobile machinery.
Core Technical Specifications:-
- Valve Architecture: 4/2 and 4/3-Way Directional Control Valve
- Actuation Type: Pilot Operated (4WEH) | Externally Pilot Operated (4WH)
- Standard Sizes: 10 to 32
- Maximum Operating Pressure: Up to 350 bar
- Maximum Flow Rate: Up to 1100 L/min
Key Features & Engineering Advantages:-
- Massive Flow Processing: Purpose-built to handle up to an incredible 1100 liters per minute, ensuring your largest hydraulic cylinders, heavy-duty rotary actuators, and complex multi-actuator systems receive the massive fluid volumes they need without internal restriction or throttling losses.
- Versatile Pilot Control: Features four distinct pilot control types, allowing system designers to accurately tailor and dictate the main valve’s spool movement to match the exact operational requirements of the parent machinery.
- Adjustable Shifting Times: Engineers can easily assemble an optional throttle and check valve block, allowing for precise, on-the-fly adjustments to the valve's shifting time. This eliminates harsh hydraulic hammering and ensures buttery-smooth directional changes even at maximum flow.
- Extreme Pressure Resilience: The heavy-duty valve body is structurally reinforced and precision-machined from premium materials, allowing it to safely absorb aggressive hydraulic shockwaves and sustain continuous 350-bar operations in the harshest environments.
- Flawless Fluid Command: Delivers absolute, leak-free control over the start, stop, and directional routing of your hydraulic fluid, ensuring your heavy equipment operates exactly as commanded, every single cycle.
Ideal Industry Applications:-
The immense flow processing, extreme structural integrity, and adjustable shifting of the 4WH/4WEH Series make it the premier directional control component for:
- Heavy Civil & Road Machinery: Dictating massive fluid routing for the heavy lifting and driving actuators on large-scale road milling machines, heavy asphalt pavers, and motor graders.
- Extreme Earthmoving Equipment: Controlling main boom and bucket circuits on heavy mining excavators, large-scale trenchers, and articulated dump trucks.
- Large-Scale Industrial Manufacturing: Providing reliable, high-volume directional control in heavy metal-forming presses, massive plastic injection molding machines, and industrial steel rolling mills.
- Marine & Offshore Engineering: Ensuring smooth, high-volume fluid routing for massive deck cranes, heavy-duty anchor handling winches, and offshore drilling platforms.
