K248872
Relay Valve, R12, 4.0 psi
Bendix

Relay valve configured for R12 systems with a 4.0 psi cracking setting, delivering controlled air distribution for braking actuators and related components. The assembly features a mounting thread size of 0.96 by 0.40 inches, a supply port thread of 1/2-14 NPT, and a delivery port thread of 1/2-14 NPT, enabling versatile installation across standard air brake plumbing configurations. The 2 supply / 2 delivery (H) configuration supports typical service and secondary circuit applications, allowing precise control of pressure signals that govern when service brakes apply and release in response to pedal input and trailer configurations. In fleet practice, this valve is pivotal for maintaining consistent brake pressure, preventing over-pressurization, and ensuring predictable response times under load changes and dynamic road conditions. VMRS 013-010-045 places this item in the relay valve family, which is central to the orchestration of air pressure in modern braking systems, with category 41354 reflecting its specialized function in brake control hardware.