Hydraulic Directional Control Valve
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.
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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.