1. The travel limiter controls the displacement from Vg min to Vg max: as the control current increases, the pump adjusts to a larger displacement.
2. The pressure cut-off valve is a sequence valve; when the load pressure reaches the valve’s cracking pressure, the valve opens, allowing pressurized oil to enter the bottom of the variable piston, thereby tilting the swashplate and reducing displacement to maintain only leakage flow, thus holding pressure constant.
3. The constant-power valve maintains constant hydraulic pump output power starting from its preset control threshold; the working pressure and flow rate strictly follow a hyperbolic relationship, ensuring optimal and efficient matching with the prime mover’s power.
TECHNICAL FEATURES
01. Three valves integrated into a single valve body—compact in size and offering comprehensive control options.
02. Excellent opening/closing characteristics ensure stable pump operating pressure and energy efficiency.
03. Power-limiting pressure setting range: 5–32 MPa; Pressure cutoff setting range: 5–35 MPa; Load-sensing pressure differential range: 1.4–2.5 MPa (standard setting: 1.8 MPa).
SPECIFICATIONS
| Power Pressure Setting Range |
Pressure Cut-off Setting Range
|
Voltage
|
Voltage | Voltage | Voltage |
| 5-32MPa | 5-35MPa | 24V | Initial value: 200 mA; termination value at Vgmin: 600 mA | 22.7Ω | 100Hz |
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