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When air is compressed, the compressor takes in water vapor with the air, compresses the water vapor & puts it into the system as liquid water. Any water that accumulates in the vehicles air lines damages seals, valves & removes lubricants. In cold weather it can freeze blocking air lines & damaging air system components. The Air Dryer protects the vehicles air systems & components from this by drying the air passing through the air tanks and into the system via the desiccant cartridge. A coalescing cartridge has additional material to trap oil & aerosol particles. Water is then removed from the desiccant via a backflow of dried expanded air.

When air is compressed, the compressor takes in water vapor with the air, compresses the water vapor & puts it into the system as liquid water. Any water that accumulates in the vehicles air lines damages seals, valves & removes lubricants. In cold weather it can freeze blocking air lines & damaging air system components. The Air Dryer protects the vehicles air systems & components from this by drying the air passing through the air tanks and into the system via the desiccant cartridge. A coalescing cartridge has additional material to trap oil & aerosol particles. Water is then removed from the desiccant via a backflow of dried expanded air.

When air is compressed, the compressor takes in water vapor with the air, compresses the water vapor & puts it into the system as liquid water. Any water that accumulates in the vehicles air lines damages seals, valves & removes lubricants. In cold weather it can freeze blocking air lines & damaging air system components. The Air Dryer protects the vehicles air systems & components from this by drying the air passing through the air tanks and into the system via the desiccant cartridge. A coalescing cartridge has additional material to trap oil & aerosol particles. Water is then removed from the desiccant via a backflow of dried expanded air.

When air is compressed, the compressor takes in water vapor with the air, compresses the water vapor & puts it into the system as liquid water. Any water that accumulates in the vehicles air lines damages seals, valves & removes lubricants. In cold weather it can freeze blocking air lines & damaging air system components. The Air Dryer protects the vehicles air systems & components from this by drying the air passing through the air tanks and into the system via the desiccant cartridge. A coalescing cartridge has additional material to trap oil & aerosol particles. Water is then removed from the desiccant via a backflow of dried expanded air.

The governor valve, which is usually compressor mounted, operates in conjunction with the compressor and maintains reservoir air pressure between a predetermined maximum and minimum pressure. The unloader valve allows the air compressor to operate in an unloaded state, where the compressor piston continues to reciprocate, but does not build additional air pressure in the vehicles compressed air system.

The governor valve, which is usually compressor mounted, operates in conjunction with the compressor and maintains reservoir air pressure between a predetermined maximum and minimum pressure. The unloader valve allows the air compressor to operate in an unloaded state, where the compressor piston continues to reciprocate, but does not build additional air pressure in the vehicles compressed air system.

The governor valve, which is usually compressor mounted, operates in conjunction with the compressor and maintains reservoir air pressure between a predetermined maximum and minimum pressure. The unloader valve allows the air compressor to operate in an unloaded state, where the compressor piston continues to reciprocate, but does not build additional air pressure in the vehicles compressed air system.

Pneumatic solenoid valves are electromechanical devices that control the flow of air & are used for controlling pneumatic actuators. When a pneumatic solenoid valve is activated, a wire coil, located on the outside of the solenoid, creates a magnetic field in the solenoid core that causes the plunger to move to close or open the flow of a system. There are several typical types of pneumatic solenoid valves, including direct-acting, pilot-operated & two-way.

The distributor valve is an important functional component of the air brake system & sometimes referred to as the heart of the air brake system. The distributor valve senses drop and rise in brake pipe pressure for brake application & release respectively.

The purpose of the limiting valve is to reduce the air pressure supplied to the front brakes during moderate brake applications. Because there is usually more loads on the rear wheels of a truck compared to the front wheels, the front wheels have more tendency to lock up during a brake application, the limiting valve reduces this tendency These valves are also used to reduce the supply pressure to other auxiliary Equipment.

The function of a quick-release valve is to rapidly exhaust air from the controlled device. It is normally located adjacent to the controlled device, rather than requiring exhaust air to return and exhaust through the control valve. This decreases release time. A check valve is a device that only allows the flow of air in one direction and are commonly referred to as non return valves or one way valves.

The purpose of the limiting valve is to reduce the air pressure supplied to the front brakes during moderate brake applications. Because there is usually more loads on the rear wheels of a truck compared to the front wheels, the front wheels have more tendency to lock up during a brake application, the limiting valve reduces this tendency These valves are also used to reduce the supply pressure to other auxiliary Equipment.

The purpose of the limiting valve is to reduce the air pressure supplied to the front brakes during moderate brake applications. Because there is usually more loads on the rear wheels of a truck compared to the front wheels, the front wheels have more tendency to lock up during a brake application, the limiting valve reduces this tendency These valves are also used to reduce the supply pressure to other auxiliary Equipment.

The purpose of the limiting valve is to reduce the air pressure supplied to the front brakes during moderate brake applications. Because there is usually more loads on the rear wheels of a truck compared to the front wheels, the front wheels have more tendency to lock up during a brake application, the limiting valve reduces this tendency These valves are also used to reduce the supply pressure to other auxiliary Equipment.

On some trucks & trailers, the distance from the brake chambers to the foot valve is too far to cause immediate application of the brake when the foot valve is depressed. This is called brake lag. To correct this situation, a relay valve is installed near the rear brake chambers. A large diameter pipe is connected between the service reservoir and relay valve. The air line from the foot valve to the relay valve now becomes a control line that signals to the relay valve the amount of air to be drawn from the service reservoir for faster application of the brakes.

The trailer control valve in the towing vehicle causes the brake system of a trailer to be supplied with compressed air. It also controls the trailer brake system via the service brake system of the towing vehicle and via the parking and auxiliary brake valve.