Wabco 9710023000 Emergency Shutoff Valve

Description

The Wabco 9710023000 Relay Emergency Valve is a critical component in air brake systems, designed to rapidly shut off air supply in emergency situations. This valve is primarily used in heavy-duty vehicles, buses, and trailers to ensure driver and passenger safety. The valve features adjustable predominance ranging from 0 to 1 bar, a calculated volume of 2.779, and a maximum operating pressure of 8.5 bar. Its dimensions are 137 x 161 x 126 mm, and it includes port threads of M22 x 1.5 JED152, M22 x 1.5 JED - 152, and M16 x 1.5 JED - 152. This valve’s precise engineering and robust construction provide a reliable and immediate response in critical braking scenarios, enhancing overall vehicle control and safety, while adhering to OE specifications and operating effectively within a temperature range of -40°C to +80°C.

Key Features & Benefits

This valve basically controls the air supply to your trailer’s brakes. It's got a couple of main jobs. It normally allows air to flow to the brakes, letting you slow down and stop like you're used to. But – and this is the important part – if there's a big drop in air pressure somewhere in the system – like a broken air line, or a leak – it cuts off that air supply. It also has a manual pull cable, so the driver can shut off the air supply themselves if needed. Think of it like a safety net for your braking system. It’s a key part of your trailer’s air brake system, working alongside your air compressor, air lines, and brake chambers. It sits between the tractor protection valve and the trailer supply line. It’s designed to protect the trailer brakes from running away if something goes wrong with the air supply. It doesn’t make the trailer stop, but it prevents a runaway situation. It’s especially important for heavier trailers.

Symptoms, Risks & Replacements

Well, imagine a situation where you lose air pressure while you're hauling a big load. Without this valve, the trailer brakes could release unexpectedly, and you’d lose control. This valve acts like a shield, preventing that from happening. You’ll notice if this valve fails because your trailer might not brake properly, or you might get a warning light on your dash. You can find these parts pretty easily – we stock a good selection here, and places like Fixparts Online are good resources too. It’s one of those things you don’t think about until it’s a problem, but keeping it in good working order is crucial for safety.

Warranty Information

Wabco Emergency Shutoff Valve (MPN 9710023000) comes with a 1-year warranty.