Wabco 4630790300 5/2 Way Directional Control Valve

Description

The Wabco 4630790300 is a 5/2 Way Directional Control Valve, a critical component within air brake systems. It's designed for use in controlling the flow of compressed air to actuators, effectively managing braking functions in commercial vehicles. This valve boasts a robust design and precise control, ensuring reliable and efficient braking performance. Its dimensions are 25 x 146 x 83 mm, and it operates within a temperature range of -25°C to 80°C. The valve features an exhaust port with an M10 x 1 thread and a nominal diameter of 4.0 mm. It is manufactured to OE specification and operates at a maximum pressure of 10.0 bar.

Key Features & Benefits

This valve basically directs airflow in your air brake system. The ‘5/2’ part tells you how it directs air. Think of it like a railroad switch. ‘5’ means there are five ports, or openings, for air to go in and out. One is the pressure inlet, one is the exhaust, and the other three go to different parts of your braking system—typically the air bags or chambers that actually apply the brakes. The ‘2’ means it has two positions—it can either let air flow to apply the brakes, or block the airflow to release them. It's a simple on/off switch for the air pressure, managed by a signal – usually from your brake pedal or a control system. This valve is a core component in your air brake system. It's used to control the flow of compressed air to actuators – things like the brake chambers on the wheels, or even air suspension systems. It’s how your foot pressing the brake pedal actually translates into stopping power. It’s often used for things like parking brakes too, holding the system pressurized when you want to keep the brakes on while parked.

Symptoms, Risks & Replacements

This valve is hugely important for safety, obviously. It’s what gives you control over stopping. If it fails, you might lose braking power altogether, or the brakes might not release properly. You’ll notice if this valve is going bad because you might experience a soft or spongy brake pedal, delayed braking response, or even the brakes dragging. They can wear out over time, or seals can fail due to moisture and use. We carry a good selection of these, and you can also find them online at places like Fixparts Online if you want to check out options and pricing. It’s a relatively inexpensive part compared to the cost of a brake job or, more importantly, an accident.

Warranty Information

Wabco 5/2 Way Directional Control Valve (MPN 4630790300) comes with a 1-year warranty.