Wabco 4420191151 Solenoid Valve

Description

This Wabco solenoid valve (MPN: 4420191151) is a critical component within air brake systems, specifically functioning within air dryers (432 431 .../432 ...). It serves as an electrically actuated valve, controlling the flow of compressed air to activate braking functions and ensure optimal system performance. This valve features a normally closed design, with a multi nominal diameter of 0.7 mm from port 1, and port threads of 12H9 and 1.0 mm. It operates at a maximum pressure of 13.0 bar and within a temperature range of -40°C to +65°C, offering robust and reliable operation in demanding conditions. Its dimensions are 68 x 45 x 84 mm, and it boasts an IP 66 A / IP 68 protection class, ensuring durability and resistance to environmental factors. The valve operates on 24 V with a rated current of 600 mA.

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 4420191151) comes with a 1-year warranty.