Common failures of commercial vehicles include:

       1. Ice jam

        position：All tracheal road commercial gas system.

        Reasons: The water in the compressed air fails to be removed effectively, resulting in a large amount of liquid water in the air path system. When the ambient temperature is low, the liquid water condenses into ice, resulting in gas pipe blockage and explosion.

       2. Seal element leakage

        position：Solenoid valve sealing element, solenoid valve pipeline sealing element, gas spring, execution cylinder and other gas system sealing element.

        Reasons: Compressed air is not effectively dried and purified, resulting in aging and failure of seals due to erosion and wear of pollution sources.

       3. Stick of pneumatic actuator

        Position: solenoid valve spool, cylinder piston.

        Reasons:Due to the erosion of harmful substances in the compressed air pipes and seals, etc., foreign bodies are produced, leading to the electromagnetic valve spool, cylinder piston, etc., stuck.

       4. Corrosion

        Position: the whole gas pipeline and gas system.

        Reasons:The pollution source of unclean compressed air is acidic, corrosive to metal and non-metal materials, resulting in corrosion of system pipelines.