Wabco 4757135010 Load Sensing Valve

Description

The Wabco 4757135010 Load Sensing Valve is a critical component within air brake systems, responsible for maintaining consistent braking force regardless of vehicle load. It's commonly used in heavy-duty trucks, trailers, and buses to ensure optimal stopping power and stability. This mechanical, static valve regulates air pressure to the brakes based on the load applied to the vehicle, preventing over-braking or under-braking. The valve features dimensions of 114 x 131 x 321 mm and includes a lever with tension spring for adjustment (10mm to 20mm range), alongside M22 x 1.5, M16 x 1.5, and M22 x 1.5 port threads. It operates within a temperature range of -40°C to +80°C and boasts a regulating ratio of 1:8 with an actuation angle of -40° to 33° and a break point of 0.5 bar.

Key Features & Benefits

This valve basically monitors how much weight your vehicle is carrying. It reads the air pressure in the suspension – think of it as feeling how much the springs are compressing. Based on that pressure, it adjusts the air pressure going to the brakes on the axles. It increases braking force on the axles with more weight and reduces it on the lighter ones. It’s a pretty smart little piece, doing a lot to keep things balanced. It’s a key part of your air brake system, especially on trucks, trailers, and anything that regularly carries varying loads. It works with your spring brakes, telling them how much help they need. It’s all about making sure each wheel is stopping with the right amount of force. It's not directly controlling the brakes themselves, it’s telling the system how to apply them.

Symptoms, Risks & Replacements

It's crucial for safe and efficient braking. Without it, your brakes could be overworking on some axles and underworking on others. That leads to uneven wear, pulls to one side while stopping, and most importantly, longer stopping distances. You’ll notice if it’s failing because you might feel a pull when braking, or the brakes just won’t feel right. Keeping this valve in good shape is a big deal for avoiding problems. We carry these at Fixparts Online if you’re looking to replace yours, and it's a part that's often overlooked until it starts causing issues. It's a relatively simple piece but vital to how your whole air brake system operates.

Warranty Information

Wabco Load Sensing Valve (MPN 4757135010) comes with a 1-year warranty.