4522000120 Wabco Hose Coupling

The Wabco 4522000120 hose coupling is an essential part of trailer air brake systems, connecting sections of air piping. This device, manufactured in Lithuania, is engineered to maintain consistent air pressure for effective brake operation. It features M22 x 1.5 port threads and a maximum operating pressure of 8.5 bar, while its dimensions are 104 x 52 x 65 mm. This coupling is designed without a filter or test connection, adhering to strict OE specifications. Dimensions are provided by the supplier and may include packaging dimensions. Trailer brake controls regulate the electric brakes on towed trailers, functioning independently of the tow vehicle’s hydraulic system. Typically installed under the dashboard, these units receive input from the driver via a manual lever or integrated control module. Proportional controllers apply braking force to the trailer based on the tow vehicle’s deceleration, utilizing a PWM signal to vary current to the trailer’s electromagnets. Timed controllers activate the trailer brakes based on pre-set intervals. Modern systems frequently include diagnostic features and compatibility with brake gain adjustment for customized performance.