Wabco 4750101020 Pressure Limiting Valve

Description

The Wabco 4750101020 Pressure Limiting Valve is a crucial safety component used within air brake systems, specifically designed for protection. It's installed to regulate and limit air pressure, preventing over-pressurization that could damage system components or compromise braking performance. This valve is particularly effective in heavy-duty vehicle applications. The device features a range of adjustment from 6.0 to 9.0 bar and operates effectively within a temperature range of -40°C to +80°C. Its dimensions are 86 x 95 x 138 mm, with a mounting configuration of 2x Ø 8.6 mm and port threads of M22 x 1.5. This valve ensures reliable and consistent pressure regulation, contributing to enhanced safety and durability of the air brake system, while meeting OE specifications.

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 4750101020) comes with a 1-year warranty.