Wabco 4802070010 EBS Relay Valve

Description

The Wabco 4802070010 EBS Relay Valve is a critical component within the air brake system of commercial vehicles. It's located within the Air Processing Unit and plays a key role in regulating air pressure to the trailer's EBS system, ensuring optimal braking performance and stability. This valve features a robust design with M22 x 1.5 port threads, an integrated silencer, and an electrical connection via 3x Bayonet DIN 72585. It operates within a temperature range of -40°C to +80°C and at a maximum operating pressure of 10.0 bar. Its dimensions are 132 x 149 x 181 mm, and it meets OE specifications with an IP 69K protection class. This results in increased reliability, improved responsiveness, and long-term durability for the braking system.

Key Features & Benefits

Basically, this valve controls the air pressure going to the spring brakes on your trailer. It’s a switching valve – it decides when to apply the spring brakes, and when to release them. It receives a signal from the tractor protection valve, and then either sends air to hold the spring brakes released, or lets the springs apply the brakes. It’s a pretty crucial part of how the trailer braking system operates. It also helps maintain consistent braking force across all axles. Think of it like this – your regular service brakes do most of the work during normal driving. But what happens if your air lines get cut, or you lose air pressure in the system? That’s where this valve comes in. It automatically applies the spring brakes – those big, powerful brakes that use strong springs – to stop the trailer. It’s a safety feature, a backup system, that keeps everything under control in an emergency. It's a key piece of the whole trailer air brake setup.

Symptoms, Risks & Replacements

Losing control of a trailer is obviously a big deal, right? This valve is what prevents that from happening if you have a failure in the primary air system. You’ll notice if it's failing because the spring brakes might drag a little, or they might not apply firmly when they’re supposed to. It’s definitely a safety component you don't want to mess around with. If you're doing any trailer maintenance, or have any issues with your brakes, it’s wise to check this. You can find these, and a lot of other air brake parts, over at Fixparts Online if you’re looking for a replacement. Ignoring a problem with this can lead to serious issues, so it’s best to get it sorted quickly.

Warranty Information

Wabco EBS Relay Valve (MPN 4802070010) comes with a 1-year warranty.