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Trailer Brake Valve for tractor with mechanical brakes 

General description

When the  tractor  is  provided by mechanical brakes, the trailer brake valve piloting can be done  in  two ways:
Mechanical piloting by cable
TBV - Mechanical piloting by cable

The  trailer brake valve with mechanical piloting is  actuated by a  tie rod or cable from the pedal assembly. Using the valve code 202104 a  tie  rod stroke compensator system must be considered in  order to allow the  full  pedal stroke while the trailer brake valve  is at the end of his stroke . The valve with mechanical piloting cod. 203440 have already the stroke compensator integrated into the valve. The braking synchronization between the tractor and the trailer can be obtained by changing the piloting lever ratio.

Hydraulic piloting trough pressure emitter

TBV - Hydraulic piloting trough pressure emitter

In this case  is  used a trailer brake valve with hydraulic piloting combined with a pressure emitter. The pressure emitter  is  a device  installed on the tie  rod to actuates the tractor mechanical brakes and  it  creates  an  oil pressure into  the pilot  circuit,  proportional to  the load  received. The braking synchronization between the tractor and trailer can be obtained by changing the trailer brake valve piloting ratio.  The piloting ratio is  defined by the diameter of the pilot piston.

 
 
 
 
SAFIM bianco su fondo azzurroBrakes on BLU No sfondo
Via D.Livingstone 6 - 41123 Modena - Italy
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