The brake system on a truck is a crucial safety feature. Most modern trucks operate an air brake system that uses compressed air to actuate the braking components. The system is complex and requires protection for optimal function. Any compromise to the air system is a recipe for disaster.
The air system protector
ASP, or the air system protector, is a filter system that keeps aerosols, moisture, and oil particles from entering the air brake controls. Contaminants in the braking system pose a huge risk and may compromise the efficiency and effectiveness of the entire system. The particle contamination alters air brakes’ compression characteristics and reduces the force generated during a braking manoeuvre. This increases braking distance, the risk of a crash, roadside failures, breakdowns, and unplanned downtime. Oil particles can also damage the air brake system and shorten its operational life.
ASPs have served as a protective fitting for European and Japanese truck brake components for decades. As more trucks move away from traditional hydraulic and disc brake systems, the demand for ASP technology has increased.
How it works
The air system protector has a complex operation. Compressed air passes from the compressor into the air dryer during system pressure build-up. The dryer has a desiccant bed that retains moisture to eliminate contamination. The system also has a coalescing filter that removes oil and other particle contaminants.
The most common cartridges used in the APS system are the silver and gold WABCO cartridges. They are among the best in the world. The silver cartridge uses a high-quality desiccant that gives it impeccable drying performance and high mechanical reliability. It also features a coalescing fleece filter that removes oil aerosols. On the other hand, the gold cartridge comprises two desiccant materials and two coalescing fleece filters. As a result, it has better performance and provides advanced oil particle removal. The gold cartridge also has a 50% extended lifetime. Nonetheless, it’s ideal for trucks that have a high air consumption.
Although WABCO air dryer cartridges are among the best, the market of full of counterfeits. The copies perform poorly against genuine WABCO parts and pose a huge risk to users. Lower-quality air dryer cartridges expose users to road safety risks and mechanical damage. Since the dryer is responsible for keeping the system completely moisture-free, any malfunctions will cause an accumulation of water vapour and lead to corrosion and rusting of the braking components. Therefore, it’s imperative to use authentic WABCO aftermarket truck parts. Ensure you make your purchase from authorised dealers.
One of the main components of the air system protector is the pressure relief valve. This valve is designed to release excess pressure from the air brake system to prevent damage or failure. The pressure relief valve is also essential for ensuring safety by preventing the brakes from locking up or failing due to excessive pressure.
Another vital component is the check valve. It ensures that air can only flow in one direction through the system, preventing the brakes from releasing unintentionally. This improves control and function.
The importance of air system protectors in trucks is profound. They protect the air brake system from damage and ensure the brakes function correctly by regulating pressure, filtering contaminants, and preventing unintended release. As a result, air system protectors make truck driving safe.