Bendix Brakes 065430 Air Brake Relay Valve - R-14

The Bendix 065430 R-14 Relay Valve is a critical air brake system component designed for medium and heavy-duty commercial vehicles including trucks, buses, and trailers. This relay valve functions as a relay station to speed up the application and release of brakes, eliminating brake lag by delivering compressed air directly from a nearby reservoir to the brake chambers.

Key Features:

• 4.0 PSI crack pressure for consistent brake response
• Dual supply ports (2) with 1/2-14 NPT threads
• Four delivery ports: two horizontal 1/2-14 NPT and two vertical 3/8-18 NPT
• Control/secondary service port: 1/4-18 NPT
• Dust shield exhaust port for protection from contaminants
• Includes loose mounting bracket with multiple mounting hole options
• Designed for either reservoir or frame mounting with universal mounting bracket for easy interchange

The relay valve is typically used to remotely control brakes at the rear of heavy trucks or semi-trailers, speeding up rear-brake application and release since air takes longer to travel to the rear of the vehicle. The valve is normally mounted at the rear of the vehicle in proximity to the chambers it serves, operating as a remote controlled brake valve that delivers or releases air to the chambers in response to control air. This configuration ensures synchronized braking performance across all axles for improved safety and vehicle control.

Common Cross-Reference Numbers: 108768, 65430, 20QE4133A, 5001478, BW065430, 065430BXW, BEN065430, BX065430