Wabco 4750103100 Pressure Limiting Valve

Description

The Wabco 4750103100 is a Pressure Limiting Valve, designed to protect air brake systems from overpressure. This valve is crucial for maintaining the integrity and safety of pneumatic braking systems in commercial vehicles and other applications utilizing air brakes. It regulates pressure, preventing damage to components and ensuring reliable braking performance. The valve features a calculated volume of 0.58114, exhaust port diameter of 4mm, and operates effectively within a temperature range of -40°C to +80°C. Its dimensions are 129 x 85 x 53 mm, with a bolt spacing of 56mm, and it incorporates M22 x 1.5 port threads. This device offers precise pressure control, adjusting from 1.2 to 6.2 bar, and is manufactured to OE specification for optimal compatibility and performance.

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 4750103100) comes with a 1-year warranty.