Wabco 9710023080 Emergency Shutoff Valve

Description

The Wabco 9710023080 Relay Emergency Valve is a critical component within air brake systems, designed to rapidly exhaust air from the trailer’s emergency line during a breakaway situation or control line failure. This valve is primarily used in commercial vehicles, trailers, and buses to ensure reliable emergency braking functionality. It features M22 x 1.5 JED - 152 port threads, a maximum operating pressure of 8.5 bar, and mounts via 2x Ø 11.0 mm holes. Measuring 135 x 164 x 129 mm, this emergency shutoff valve provides a robust and responsive safety mechanism, exceeding OE specifications for performance and durability, and is capable of operating within a temperature range of -40°C to +80°C. Its precise design and rapid response time contribute to enhanced vehicle safety and control.

Key Features & Benefits

This valve basically controls the air supply to your air brake system when there's a critical loss of air pressure. It’s got a couple of main jobs. First, it automatically applies the spring brakes – those big emergency brakes – if the air pressure drops too low. Think of it like a safety net. Second, it isolates the air tanks, so you don't lose all your air instantly if you spring a leak somewhere. It’s a bit like patching a hole in a tire to keep from going flat immediately. It sits within your air brake system, specifically between your air compressor, reservoirs, and the brake chambers themselves. It’s a key part of the relay valve network. It’s constantly monitoring the air pressure. Normally it allows air to flow freely, providing pressure for regular braking. But the instant it senses a significant pressure drop, it springs into action and initiates the emergency brake application. It acts like a shield, preventing a runaway situation if you lose air pressure while driving.

Symptoms, Risks & Replacements

Honestly, this is a safety component through and through. If this valve fails, you could end up without emergency braking, which, well, you can imagine isn’t a good spot to be in. You’ll notice if it's failing if your emergency brakes engage unexpectedly, or if you have trouble applying them when you need to. They’re crucial for preventing accidents, particularly with heavier vehicles that rely on air brakes. You can find these, and a lot of other air brake components, over at Fixparts Online if you’re doing some maintenance. It’s something you really don’t want to gamble with; regular inspection and replacement when needed is the smart move.

Warranty Information

Wabco Emergency Shutoff Valve (MPN 9710023080) comes with a 1-year warranty.