SINOTRUCK HOWO Heavy Truck Air Control Valve WG9000360522

Description

Composition of SINOTRUCK HOWO Heavy Truck Air Control Valve WG9000360522:

The Air Control Valve WG9000360522 is an important component of the truck’s pneumatic braking system. The hand brake valve is usually composed of a valve body, valve core, spring, handle, etc. The valve body is the outer shell of the handbrake valve, and it has components such as the valve core inside. The valve core is used to control the flow of gas, the spring provides the restoring force, and the handle is used for the driver’s manual operation.It is mainly applied in models such as HOWO truck, STEYR truck, King truck, and SITRK truck ect.

Working principle of the Air Control Valve WG9000360522:

The air control valve WG9000360522 mainly controls the truck’s braking through manual operation of the handle. When the hand control valve handle is in the initial position, the vehicle is driving normally and the handbrake valve does not function. When the handle is pushed to the parking brake lock position, the handle is locked and the entire vehicle is in the parking brake state.

The functions of the hand brake valve WG9000360522 are as follows:

• Parking brake: After the vehicle is parked, pulling up the handbrake valve can make the vehicle enter a braking state, preventing accidents caused by vehicle rolling away when parked, and ensuring the safety of the vehicle in a stationary state.
• Auxiliary braking: During vehicle operation, the handbrake valve can also be used as an auxiliary braking method. For example, when the foot braking system fails, the handbrake valve can be used appropriately for braking to slow down or stop the vehicle. However, in this case, it should be operated with caution to avoid damage to the braking system or vehicle loss of control due to excessive use of the handbrake.
• Emergency braking: In driving, if the braking system fails, the handbrake valve can be manually triggered as an emergency measure.

Structural features of the Air Control Valve WG9000360522:

1. Valve body structure: It is usually made of metal and has excellent strength and sealing performance, capable of withstanding high-pressure gas in the braking system. Its appearance shape and size vary depending on different vehicle models and installation positions, but it is generally designed to be convenient for the driver to operate. The position and feel of the handle have been meticulously designed to ensure quick and accurate operation in emergency situations.
2. Valve stem and sealing element: The valve stem is a crucial component for controlling gas flow. It is closely integrated with the sealing element to prevent gas leakage. The sealing element is typically made of wear-resistant and oil-resistant rubber material, which can maintain excellent sealing performance over a long period of use, ensuring the normal operation of the braking system.

Common faults of the Air Control Valve WG9000360522:

1. Air leakage: When the handbrake valve is in the “parking brake” position, if there is continuous air leakage from the exhaust port, the possible causes could be poor sealing between the intake valve and the valve seat, or the presence of foreign objects or damaged seals. This can be resolved by replacing the intake valve seal in the repair kit.
2. Brake failure: This may be caused by the valve stem getting stuck inside the handbrake valve, damage to the spring, or blockage of the pipeline. It is necessary to check the movement of the valve stem. If there is a stuck condition, cleaning and lubrication can be performed; if the spring is damaged, it needs to be replaced; for pipeline blockage, the blocked pipeline should be cleaned or replaced.