Haldex Air Brake Control Valve

Haldex Air Brake Control Valves: Precision Engineering for Commercial Vehicles

When it comes to air brake system integrity on heavy-duty trucks, trailers, and buses, few names carry the authority of Haldex. With a heritage spanning more than 130 years, Haldex has built its reputation on one foundational principle: keeping commercial vehicles safe through technically superior braking solutions. Their Air Brake Control Valves are a direct expression of that commitment — precisely manufactured components that govern the flow and pressure of compressed air throughout a vehicle's braking circuit.

The Role of Air Brake Control Valves

In an air brake system, control valves are the nerve center of pressure management. They regulate, direct, and modulate compressed air to ensure that braking force is applied smoothly, accurately, and consistently — whether the vehicle is a long-haul tractor, a tandem-axle trailer, or a transit bus. A valve that fails to respond correctly under load can compromise stopping distances and vehicle stability, making the quality of these components a true safety-critical concern.

Haldex addresses this challenge through its Air Controls product area, which encompasses the full range of valves, compressed air dryers, and electronic braking systems (ABS/EBS) designed to improve the safety and driving dynamics of commercial vehicle brake systems. Within this lineup, air brake control valves serve applications from relay and quick-release functions to dual parking control and pressure protection.

What Sets Haldex Apart in Air Brake Control Valves

Haldex engineers their air brake control valves to meet the demands of real-world commercial fleet operation. Key product features across the Haldex valve lineup include:

• Engineering Grade Composite (EGC) housings — select models feature one-piece molded housings with clearly identified ports, simplifying installation and reducing maintenance errors.
• Superior component quality — Haldex valves are manufactured with precise processes and exacting quality standards, distinguishing genuine OE-grade parts from lower-quality imitations.
• Broad application coverage — valves are available in configurations for both tractor and trailer applications, with specific pressure settings and port sizes to match a wide range of commercial vehicle platforms.
• Conventional and EBS compatibility — products are engineered to work within both traditional air brake systems and modern Electronic Braking Systems, keeping fleets ready for evolving regulatory requirements.

Notable Haldex valve product lines include relay valves (such as the KN28042 series), quick-release valves (KN32011 series), dual application valve kits (KN20622), and full-function trailer valves — each designed as direct-fit replacements that meet or exceed original equipment specifications.

A Trusted Partner for Fleet Maintenance

Haldex supplies its brake components to OEM truck and trailer manufacturers globally, and the same engineering discipline carries through to its aftermarket parts. For fleet operators and repair professionals, choosing a genuine Haldex air brake control valve means sourcing a component built to the same standard as what left the factory floor. The brand's global manufacturing and distribution network ensures consistent availability, while its deep technical documentation — including installation guides and service manuals — supports accurate, confident repairs.

Whether you are replacing a worn relay valve on a long-haul tractor or restoring pressure protection function on a trailer, Haldex offers the proven reliability that keeps commercial vehicles operating safely mile after mile. Browse the full selection of Air Brake Control Valves to find the right Haldex part for your application.