What risks may be caused to the hydraulic system if the hose burst valve fails?

The main function of the hose burst valve is to quickly close the oil circuit when the hose breaks, preventing the hydraulic cylinder from accidentally moving the load due to pressure leakage. If the valve fails, the hydraulic oil in the cylinder will quickly leak from the broken hose, causing the load to lose support. For example, in equipment such as cranes, lifting platforms or injection molding machines, a failed burst valve may cause heavy objects to fall suddenly, the robot arm to swing out of control, or the mold to close unexpectedly, causing equipment damage or casualties. This sudden movement will not only damage the mechanical structure, but also cause serious harm to the operator, especially in high-altitude or heavy-load working environments, the risk is higher.

When the hose breaks, a normal burst valve will immediately block the oil circuit and maintain the system pressure stable. But if the valve fails, high-pressure oil will continue to leak from the broken part, causing a sharp drop in the pressure of the entire hydraulic system. This situation will affect the normal operation of other actuators, making them unable to complete the intended action due to insufficient oil supply. At the same time, the hydraulic pump may produce cavitation or overload operation due to sudden unloading, which will accelerate the wear and even damage of the pump in the long term. In addition, a sudden drop in system pressure may also trigger a safety shutdown, causing production line interruptions and affecting overall production efficiency.

After the hose burst valve fails, hydraulic oil will continue to spray out from the broken hose, causing a large amount of oil leakage. This not only wastes expensive hydraulic oil, but also pollutes the working environment, increases the risk of slipping on the ground, and may cause people to fall and get injured. In addition, the leaked oil may seep into the ground or flow into the drainage system, causing environmental pollution, and even violate environmental regulations, causing companies to face fines or rectification requirements. Cleaning up the leaked oil also requires additional time and cost, further affecting production operations.

Load loss or system pressure fluctuations may trigger a chain reaction, causing damage to other parts of the hydraulic system. For example, the cylinder may be deformed due to sudden loss of pressure or mechanical impact, and the seal may be damaged due to abnormal force, leading to subsequent leakage problems. The instantaneous pressure fluctuations in the high-pressure oil circuit may also damage the pipeline, joints or other valves, increasing maintenance costs. On an automated production line, an out-of-control hydraulic actuator may collide with surrounding equipment such as sensors, electrical components or mechanical frames, causing more extensive equipment failures.

In hydraulic equipment involving heavy loads, high altitude or high-speed movement, the failure of hose burst valves may directly endanger the safety of operators. For example, on forklifts, excavators or lifting platforms, sudden cylinder pressure relief may cause the equipment to lose control, crushing or squeezing nearby workers. The spray of high-pressure oil may also penetrate the skin or splash into the eyes, causing serious injuries. In addition, in flammable environments, leaking hydraulic oil may increase the risk of fire. Therefore, the reliability of burst valves is crucial to ensure the safety of personnel, especially in high-risk industries such as mining, construction and manufacturing.

Failure of hose burst valves is usually caused by mechanical jamming, seal damage, installation errors or long-term wear. For example, the valve core may be stuck due to hydraulic oil contamination or rust, and it cannot be closed in time when the hose breaks; wear of the seal ring or valve seat will cause internal leakage and reduce the locking effect; the wrong installation direction or connection method will also prevent the valve from working properly. In addition, after long-term use, spring fatigue or valve body wear may reduce the response speed of the valve, making it unable to play a role at a critical moment.