Wabco 4324150690 Air Dryer Unloader Regeneration Valve

Description

The Wabco 4324150690 Air Dryer, Unloader, and Regeneration Valve is a critical component in heavy-duty air brake systems. It’s designed to remove moisture and contaminants from compressed air, ensuring consistent and reliable braking performance in commercial vehicles. This device utilizes a desiccant cartridge and compressed air cooling to maintain dry, clean air, preventing corrosion and extending the life of air brake components. It features a cut-out pressure of 8±0.4 bar, a maximum operating pressure of 13.0 bar, and port threads of M22 x 1.5 and 1/4 - 18 NPTF. Its dimensions are 180 x 240 x 334 mm. This air dryer operates within a temperature range of -40°C to +65°C and requires a 12V power supply, providing robust and dependable air treatment for enhanced safety and operational efficiency.

Key Features & Benefits

This valve basically has two main jobs. First, it periodically dumps the built – up condensate – that’s water – from your air dryer. Air brakes need clean, dry air to work right, and that moisture collects. The valve opens, gets rid of the water, and then seals back up. Secondly, it manages the regeneration of the desiccant within the air dryer itself. That desiccant is like a sponge that pulls moisture from the air, and the valve helps heat it up occasionally to squeeze out that collected water and keep it working efficiently. Think of this valve as a key part of your entire air brake system. It sits within the air dryer unit, which is usually mounted somewhere on the engine, and it’s connected to the air lines that supply air to your brakes. It's directly responsible for making sure the air being sent to your brake chambers isn’t full of water. Without it, that moisture builds up, and it can freeze in the winter, or cause corrosion and damage over time.

Symptoms, Risks & Replacements

Well, wet air brakes are dangerous, plain and simple. Moisture reduces braking efficiency. You’ll notice if it’s failing if your brakes feel spongy, or if you’re getting longer stopping distances. It also causes wear and tear on other brake components like the air compressor and brake chambers, costing you money down the road. If the desiccant can’t regenerate properly, the whole air dryer essentially stops working. You can find these parts at places like Fixparts Online, and it’s something you definitely want to address right away if you suspect a problem. It’s a relatively small part, but it’s vital for safety and keeping your vehicle on the road.

Warranty Information

Wabco Air Dryer Unloader Regeneration Valve (MPN 4324150690) comes with a 1-year warranty.