Haldex Commercial Vehicle Systems’ family of pressure protection valves – used in air suspensions, air seats and cab isolation systems – standardizes three pressure settings for both a base ...

All air brake systems differ somewhat depending on manufacturer design and application-specific options. Read CCJ for details.

The Haldex one-way check pressure protection valves protect against leaks in air pressure from the braking system if an air line or valve in an air-operated accessory fails. The e-coated zinc ...

Air dryers mounted on the frame rail are susceptible to corrosion due to their exposure to the road, particularly the seats around the purge and pressure protection valves, and the governor ...

The air dryer bodies can pit and form leaks, he says, adding that related ports and pressure protection valves can be attacked as well. Then there’s the related wiring to consider.

Some trucks today don’t have wet tanks and use pressure protection valves found in the air dryer to isolate the primary from the secondary. Double or two-way check valves are also used throughout the ...

Heavy-haul freight trains require fully charged brakes. When operating a train on a downgrade, brake usage levels on individual cars climb, equipment heats up, and braking power levels can drop ...

Each valve within the air brake system is designed to operate on a specific pressure. The relay valves, at each position, have built into them through a rubber valve and spring a “crack pressure” to ...

At the heart of a commercial vehicle’s air brake system is its air compressor. Bendix shares troubleshooting tips and how to replace an ESS piston.

The one-way check pressure protection valves protect against leaks in air pressure from the braking system if an air line or valve in an air-operated accessory fails, the company says. The e ...