Hydraulic Directional Control Valve
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5DP20GL Directional Control Valve
The 5DP20GL multi spool directional-control valve is designed for the upper-structure control systems of 8-16-ton full-hydraulic truck cranes. It adopts a sectional-type directional-control structure with cast-in internal flow passages. By combining multiple valve sections, the valve enables centralized control of actuators including hoisting, luffing, telescoping, slewing, and winch functions.
The valve body incorporates a series oil circuit design. Through spool shifting, hydraulic oil is distributed in an orderly sequence among individual circuits, meeting the requirements for both independent and combined crane motions.
The valve body incorporates a series oil circuit design. Through spool shifting, hydraulic oil is distributed in an orderly sequence among individual circuits, meeting the requirements for both independent and combined crane motions.
Technical Specifications
| Fluid Media | Hydraulic oil |
|---|---|
| Mounting Type | Threaded connection |
| Control Type | Manual / Hydraulic |
| Seal Material | NBR / FKM (Viton) |
| Body Material | Cast iron |
| Nominal Diameter | 20mm |
| Max. Flow Rate | 250L/min |
| Max. Working Pressure | 315bar |
Diagram
Dimension Drawing
Features & Advantages
- Winch operation adaptation: Supports dual-pump combination with a five-position spool and double-mode control, suitable for winch operation under varying load conditions.
- Compact structure: The cast-in internal flow passage sectional structure reduces external piping, facilitating compact layout and system integration.
- Series oil circuit design: Clear oil supply logic with predictable motion response.
- Customizable matching: Circuit layouts and configurations can be adjusted according to overall machine operating conditions.
Customer Application Cases
Truck cranes manufactured by Liugong Machinery: Equipped with 5DP series multi spool directional-control valves supplied by Lite Hydraulic.
Truck cranes manufactured by a Shandong-based enterprise: Using 5DP series multi spool directional-control valves provided by our Lite Hydraulic.
Truck cranes manufactured by a Henan-based enterprise: On-site commissioning jointly carried out by our technical team and the OEM engineers, using 5DP series multi spool directional-control valves manufactured by Lite Hydraulic.