What are the causes of brake hose rupture?

1 Answers
McMaddox
07/29/25 12:05pm
Here are the specific reasons for brake hose rupture: Diesel engine high-pressure fuel line breakage: First, check if the fuel injector is stuck in the closed position. If the injector is stuck while the engine is running and the plunger continues to inject fuel, the high-pressure fuel line has limited pressure-bearing capacity. Prolonged exposure to this pressure can cause the high-pressure fuel line to rupture. Poor unloading of the delivery valve: If the delivery valve sealing or unloading is faulty, leading to excessively high residual pressure or cavitation in the high-pressure fuel line, it can cause fatigue damage or cracks in the line. Prolonged engine operation beyond the fatigue strength of the high-pressure fuel line material can result in line breakage. Improper installation: Line breakage is also related to the quality of the fuel line and the assembly method during installation. Particularly during the assembly of high-pressure lines, if stress concentration occurs at the threaded connection, it can easily lead to rupture at the flare fitting.
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