Wabco 4700152770 Hydraulic Pneumatic Trailer Control Valve

Description

The Wabco 4700152770 is a Hydraulic Pneumatic Trailer Control Valve designed for use in trailer air brake systems. This valve precisely regulates air pressure to the trailer brakes, ensuring safe and efficient stopping performance. It features a 2-circuit design and is built to OE specification for reliable operation. The valve's dimensions are 68 x 90 x 171 mm, with mounting utilizing 2x Ø9.0 mm holes, and port threads of M16 x 1.5 (x2), M10 x 1, and M12 x 1.5. It operates within a temperature range of -40°C to +80°C, handles a maximum operating pressure of 8.1/50.0 bar, and provides a calculated volume of 1.0465 at a delivered pressure of 26.0 bar. The valve employs a flap exhaust and is designed with a distance between holes of 26mm.

Key Features & Benefits

This valve basically takes the hydraulic pressure from your tow vehicle’s braking system and converts it into an air signal that activates the brakes on your trailer. It manages how much air goes to the trailer brakes, letting you control the braking force applied to the trailer. It handles things like anti – lock functionality for the trailer, and also includes a manual emergency brake application, just in case. It's a bit of a translator, taking what your vehicle does and telling the trailer brakes what to do. Think of it as the central nervous system connecting your truck or SUV to the trailer's brakes. It sits in the line between your vehicle’s hydraulic brake system and the air lines running to the trailer. It receives signals when you hit the brake pedal and then sends the appropriate air pressure to the trailer’s air brake system, telling it how hard to stop. It’s not directly part of your vehicle’s brakes, but it’s absolutely essential for safely stopping the whole combined load.

Symptoms, Risks & Replacements

This valve is really important for safety. Without it working right, your trailer brakes won’t respond correctly, or might not respond at all. It’s what lets you maintain control when towing, preventing dangerous sway or extended stopping distances. You’ll notice if this thing starts to fail – you might have weak trailer brakes, or the trailer might not stop in sync with your tow vehicle. It’s a pretty critical component. We carry a good selection of these at Fixparts Online, and we can help you find the right one for your setup. Getting a good quality valve, and making sure it’s installed and adjusted correctly, is just a really smart thing to do when you’re towing anything significant.

Warranty Information

Wabco Hydraulic Pneumatic Trailer Control Valve (MPN 4700152770) comes with a 1-year warranty.