Wabco 4710030200 Emergency Shutoff Valve

Description

The Wabco 4710030200 Relay Emergency Valve is a critical component within air brake systems, designed to rapidly exhaust air from the brake chambers in the event of an emergency or critical system failure. This valve is commonly used in commercial vehicles and heavy-duty machinery to ensure driver and passenger safety. Measuring 11 x 10 x 14 mm, this device features M22 x 1.5 port threads and a mounting configuration of 2x Ø 10.5 mm. It operates effectively within a temperature range of -40°C to +80°C and supports a maximum operating pressure of 5.3 bar, ensuring reliable performance under demanding conditions. This emergency shutoff valve meets OE specifications, providing a direct replacement for factory-installed components and contributing to optimal braking system efficiency.

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 4710030200) comes with a 1-year warranty.