The Truck Brake Valve

The Truck Brake Valve, or TBV, is a part of the braking system of a truck or trailer. The TBV comprises a pair of pistons connected in tandem, one side of which carries a member for operating the valve and the other side of which is connected to a fluid pressure responsive means.

The TBV has a load sensing valve at the input end of the truck's rear brake line. The pressures across the pistons are balanced when the vehicle is fully laden. This pressure balance means that the output pressure is less than the input pressure. When the vehicle is unloaded, the load sensing valve provides a reduced output pressure than the pressures across the pistons. When this pressure difference occurs, the pressure above the piston 31 exerts a downward thrust on the triple piston assembly 12, augmenting the downward thrust applied by the brake system.

The Truck Brake Valve is an important part of the truck brake system. If it malfunctions, it can compromise the vehicle's safety. It is not uncommon for the proportioning valve to fail, especially after a prolonged period of driving or a modification that changes the front-to-rear bias.

The parking brake button is located on the dashboard. If it is activated, it applies the parking brake and releases the trailer air supply valve. In addition, the TBV also applies the trailer air supply valve. During tug tests, it is important to hold the parking brake button. But remember that reading the text on the button is not always possible because the text fades over time.

The brake pedal is a complex device, requiring a lot of pressure to operate. In addition to the air reservoir, there is a service brake relay valve. This device connects the two reservoirs through a two-way check valve. It also controls the spring brakes. This reduces the amount of air-loss in one braking circuit, while increasing the driver's control.

The Truck Brake Valve controls the amount of brake fluid that is released from the brake system. The air pressure enters the brake chamber through the inlet port. The piston is held closed by a spring, which allows a small amount of air to pass through. The pressure in the brake chamber is proportional to the pressure in the driver's foot. If the pedal is pushed completely to the floor, the pedal will exert all of the fluid in the reservoir tanks.

Relay valves are located on the rear axle of long-wheeled tractors and trailers. These valves are important because they reduce the time required for the brake system to activate. The air pressure that is delivered to the rear axle is slower than to the front axle of the vehicle. If the rear brake is not fully applied, the air pressure is not enough to stop the vehicle.

Truck Brake Valve has to be installed in the right position to ensure proper operation. A leaky valve can result in premature application of brakes, wheel lock-up, or the trailer pushing when the brakes are not applied. The valve should be designed to allow air to quickly escape near the brakes, which will minimize the amount of time required to stop the vehicle.
Clutch Booster G1001
Zhejiang Great Science & Technology Co., Ltd. is well known

OEM.NO. :642-03080(φ22.2)

Clutch Booster G1001 suppliers and

OEM.NO. :642-03080(φ22.2)

Clutch Booster G1001 company. We R&D and manufacturing various truck accessories, clutch boosters, vacuum boosters, brake boosters, brake valve, etc.