A brake air tank is a vital component in pneumatic brake systems used in vehicles, particularly heavy-duty trucks and buses. Typically made of steel or aluminum, these tanks store compressed air generated by the vehicle's air compressor. The air tank acts as a reservoir, supplying pressurized air to various pneumatic components such as brake chambers, valves, and actuators. This stored air is essential for applying and releasing brakes efficiently. Brake air tanks come in different sizes and shapes, often cylindrical or rectangular, to fit specific vehicle configurations. They are equipped with inlet and outlet ports for air connections, as well as safety features to handle high pressures safely. Proper maintenance and inspection of brake air tanks are crucial for ensuring reliable brake performance and vehicle safety on the road.