Wabco 4750103010 Pressure Limiting Valve

Description

The Wabco 4750103010 is a Pressure Limiting Valve designed for air brake systems. It functions as a critical protection valve, safeguarding the system from overpressure. This valve is typically used in heavy-duty vehicles and trailers to maintain safe and reliable braking performance. The valve features a calculated volume of 0.678 and is designed for a maximum operating pressure of 20.0 bar with an adjustment range of 9.6 to 12.0 bar. It is equipped with M22 x 1.5 port threads and mounting holes of 2x Ø 8.6 mm. Its dimensions are 55 x 85 x 145 mm, and it operates effectively within a temperature range of -40°C to +80°C. This OE specification valve offers precise pressure regulation, contributing to enhanced braking system safety and longevity.

Key Features & Benefits

This valve basically controls the maximum air pressure that gets to certain parts of your air brake system, specifically things like the spring brakes. It limits how much pressure builds up. It’s a pretty simple idea, but it’s crucial for safety. It can also act as a kind of safety net, preventing over – pressurization that could damage other components. Think of it like a gatekeeper for the air pressure. It’s typically installed between the air compressor and the air tanks, and then connected to the spring brakes and sometimes other systems. It's there to make sure no single part gets overwhelmed. It ensures everything stays within safe operating limits, even if your compressor is working a little too hard, or if there's a surge in pressure somewhere.

Symptoms, Risks & Replacements

It's important because those spring brakes are a big deal. They're your emergency brake, and you need them to work every time. If pressure gets too high, it can cause them to partially apply unexpectedly, or even fail completely. This valve protects against that. You’ll notice if this valve fails because your spring brakes might not hold properly, or might drag a bit. It's a key safety component, and keeping it in good working order is essential. You can often find replacements at places like Fixparts Online, and they aren't too difficult to swap out if you're comfortable working on air brakes.

Warranty Information

Wabco Pressure Limiting Valve (MPN 4750103010) comes with a 1-year warranty.