Wabco 4728800320 Solenoid Valve

Description

The Wabco 4728800320 is a solenoid valve crucial for the operation of air brake systems. This valve is used to control the flow of compressed air within the braking circuit, enabling efficient and reliable braking performance in commercial vehicles and trailers. It features a bayonet electrical connection conforming to DIN 72585-A1-3.2-Sn/K2, operates at a maximum pressure of 20.0 bar, and is designed for mounting with 2 x Ø 9 mm bolts. Its multi nominal diameter ranges from 9.8 to 0.6 mm, and utilizes M22 x 1.5 JED - 388 port threads. Constructed to OE specification, this device offers a robust IP 6K9K protection class and operates within a temperature range of -40°C to +80°C, ensuring durability and consistent performance in demanding conditions. The valve’s dimensions are 76 x 167 x 202 mm.

Key Features & Benefits

This valve basically controls the flow of compressed air in your air brake system. It's an electrically operated switch, think of it like a little gatekeeper. When it gets a signal, it opens or closes, letting air through or stopping it. It can do a few different things depending on the specific valve – it might release the brakes, apply them, or control things like the parking brake. Some valves manage the air supply to the suspension, too. In your braking system, it’s a critical part of how you actually stop. The driver’s pedal sends a signal, and that signal then activates the solenoid valve. That valve then directs the compressed air to the brake chambers, which push out the brake shoes or pads. It's a key link between what you do with your foot and the brakes engaging. It’s also used in things like air horns, or automatic leveling systems on some trucks or RVs.

Symptoms, Risks & Replacements

Well, without it, your brakes won’t work properly, or at all. It’s a safety item, plain and simple. You’ll notice if a solenoid valve is failing because your brakes might drag, feel spongy, or just not hold properly. Ignoring a bad solenoid valve is a really bad idea. They're pretty reliable, but over time, especially with dirt and moisture in the air lines, they can get stuck or fail. We carry a good selection here, and you can find a lot of options at Fixparts Online too, if you like browsing that way. Just make sure you get the right one for your vehicle – there are different types and sizes.

Warranty Information

Wabco Solenoid Valve (MPN 4728800320) comes with a 1-year warranty.