Wabco 4630370050 Directional Control Valve 4/3

Description

The Wabco 4630370050 is a 4/3 Directional Control Valve, a critical component in air brake systems. It's used to control the flow of compressed air, directing it to different actuators like brake cylinders. This valve features a locking function and an exhaust via a hole in the body, ensuring reliable and consistent braking performance. With a nominal diameter of 4.0 mm, actuation angle of 60/60°, and a maximum operating pressure of 10.0 bar, this valve provides precise control and durability. Its dimensions are 58 x 103 x 48 mm, and it features a M28 x 1.5 mounting and M10 x 1 port thread. It adheres to OE specifications and is designed for operation within a temperature range of -25°C to 80°C.

Key Features & Benefits

This valve basically directs airflow in your air brake system. The ‘4/3’ part tells you how it works. Think of it like a set of railroad switches. It has four ports—ways for air to enter or exit—and three positions. It can connect two ports at a time, switching the airflow based on a signal, usually from your brake pedal or a control lever. It can send air to the brakes to apply them, release air to let them off, or even hold the pressure to keep things steady. It's really about controlling where the air goes. It's a core component of your air brake system, naturally. It's typically used to control actuators—things that do the braking—like the chambers on your brake drums. It can also control things like lift axles, air suspension, or even other pneumatic systems on a truck or trailer. It's the “brain” telling the air where to go to make those systems work.

Symptoms, Risks & Replacements

This valve is vital for safety. If it fails, you could lose your ability to apply, hold, or release the brakes properly. You’ll notice if it’s going bad – things like brakes dragging, not releasing fully, or even a complete loss of braking power could happen. It acts like a shield, protecting the rest of your air system, and making sure everything functions as it should. If you're dealing with air brakes, keeping this part in good condition is super important. You can find replacements pretty easily—Fixparts Online carries a good selection if you’re looking—but getting a good one and installing it correctly is key.

Warranty Information

Wabco Directional Control Valve 4/3 (MPN 4630370050) comes with a 1-year warranty.