Trailer Brake Control (TBC) Valve

The newly designed TBC Valve provides the spring brake control function required for FMVSS-121 compliant trailers. Mounted to the trailer reservoir, the TBC reacts to a signal from the trailer supply line to charge the tank and to control the spring brake, providing parking and emergency braking. Compatible with all industry Anti-lock Braking systems (ABS) except the patented Haldex FFABS, designed with an integral spring brake control function. The TBC Valve is available in either service brake priority or spring brake priority.

 TBC Valve Catalog Page

Unique Design

  • Light weight, Engineering Grade Composite (EGC) design, capable of withstanding high impact
  • Resistant to corrosion and chemicals, especially important for vehicles exposed to salt water environments and harsh road conditions
  • Integral anti-compounding
  • Internal pressure protection and check functions isolate reservoir failures to prevent automatic applicatoin of the trailer spring brakes
  • Exhaust covers keeps road dirt and grime out
  • Inlet filters eliminate system contamination, promoting long service life