Wabco 4341005070 Check Valve

Description

This Wabco check valve, MPN 4341005070, is a critical component within air brake systems, designed to ensure unidirectional flow of air. It is used within the air lines of commercial vehicles and trailers to prevent backflow, maintaining consistent brake performance and system integrity. This valve features a nominal diameter of 8.0 mm, port threads of M22 x 1.5, and dimensions of 53 x 93 x 82 mm. Engineered to OE specification, this check valve offers reliable operation across a temperature range of -40°C to +80°C, with a closing pressure set at 5.5 ±0.2 bar and an adjustable range of 5.3 to 7.0 bar. Its design with limited return flow optimizes system efficiency and responsiveness.

Key Features & Benefits

Basically, this little part lets air flow in one direction only. Think of it like a one – way street for air. It prevents air from flowing backwards through the system. It’s a simple concept, but it’s surprisingly crucial. It allows air to build pressure where it needs to go, and keeps it from bleeding off somewhere it shouldn't. In your air brake system, these are commonly used in things like the spring brake portion. They ensure that when you release the brakes – say, you park the vehicle and shut it down – air doesn't leak back into the system and release the spring brakes unexpectedly. It also protects components further down the line from reverse pressure. You’ll often find them on the supply side of different components.

Symptoms, Risks & Replacements

Honestly, these aren’t usually something people think about until they have a problem. But if this valve fails, it can create a really dangerous situation. You might find your parking brakes won’t hold, or your air pressure will drop unexpectedly. It acts like a shield, preventing air loss and maintaining the integrity of your braking system. They're relatively inexpensive parts, and replacing a faulty one is a lot cheaper – and safer – than dealing with brake failure. You can find a good selection of these at places like Fixparts Online, and they’re usually pretty straightforward to replace if you’re comfortable with basic air brake maintenance. You’ll notice if one starts failing, usually a slow leak or inconsistent brake performance.

Warranty Information

Wabco Check Valve (MPN 4341005070) comes with a 1-year warranty.