The 4WMM25G-50/F is a high-performance manual operated directional control valve designed to control the start, stop, and direction of hydraulic fluid flow in hydraulic systems. The valve is manually actuated through a lever mechanism, allowing operators to directly shift the spool and control hydraulic cylinders or motors. With its robust construction, high flow capacity, and reliable performance, it is widely used in industrial machinery, hydraulic power units, construction equipment, and maintenance systems where manual hydraulic control is required.

Working Principle

The 4WMM25G-50/F valve controls hydraulic flow through manual movement of the operating lever.

When the lever is shifted:

• The spool moves inside the valve body.
• Hydraulic oil is directed from pressure port (P) to work ports (A or B).
• Return flow is directed from the opposite work port to tank port (T).

This enables precise manual control of:

• Hydraulic cylinder extension and retraction
• Hydraulic motor forward and reverse rotation
• Start and stop functions of hydraulic actuators

The detent mechanism (/F) allows the spool to remain in the selected position without continuous operator force.

Product Features

• Manual lever-operated directional control
• 4-way, 3-position spool design
• G-type spool configuration for energy-saving operation
• High flow capacity for large hydraulic systems
• Smooth and reliable spool shifting
• Compact and durable valve construction
• Optional detent function (/F) for position holding
• Low pressure loss and high operational efficiency
• Long service life with minimal maintenance