Core Features
Pressure Limiting Protection: Automatically overflows when system pressure exceeds 27.5 MPa to prevent overload damage to pumps, cylinders, pipelines, and other components.
Pressure Stabilization and Regulation: Maintains stable pressure in the working device circuit, with pressure fluctuations ≤ ±0.2 MPa, ensuring smooth operation of the blade/ripper.
Load Compensation: Dynamically adapts to load in conjunction with the CLSS system, improving the response and efficiency of complex actions.
Oil Protection: Automatically releases pressure when oil temperature is too high or oil contamination occurs, reducing the risk of component wear.
Pressure Feedback: Feeds pressure signals back to the monitoring system, supporting fault diagnosis and early warning.
Product Superiority
Original factory precision matching: Pressure parameters, interfaces, and hydraulic logic are fully compatible with the entire machine, allowing for direct replacement without adjustment.
High pressure stability: The pilot-operated structure ensures more precise pressure control and fast overflow response (≤0.3 s), avoiding shock.
Fatigue-resistant and durable: The valve body is made of HT300 cast iron, and the valve core is nitrided (hardness ≥60 HRC), with a lifespan ≥12,000 hours.
Safety redundancy: Built-in check valve prevents backflow, and the double-sealing design reduces the risk of leakage.
Easy maintenance: Reserved pressure adjustment port and testing interface support rapid pressure calibration and troubleshooting.
Installation and Maintenance Points
Clean the valve body and interfaces before installation, and replace any new seals to prevent impurities from causing valve core jamming.
Tighten the bolts to the specified torque (250–280 N·m) to avoid valve body deformation affecting pressure regulation accuracy.
After installation, use a pressure gauge to verify that the set pressure is stable at 27.5 MPa with no leakage.
Change the hydraulic oil and filter element every 2000 hours, and periodically check the pressure and sealing condition.
Suitable scenarios and value
Suitable scenarios: Heavy-duty operations such as mining stripping, large-scale infrastructure construction, and high-fill operations, involving frequent blade lifting/tilting and ripper operations.
Core value: Ensures safe and stable operation of the working device circuit, improves operational efficiency, and reduces hydraulic system failure rate and maintenance costs.
