This diagram is the most common way to plumb a proportioning valve. In
some cases, the right front line will be plugged off at the proportioning
valve and the left front line will go to a "T" fitting. From the
"T" fitting, the front lines then split off and go to the left
and right wheels.
Our proportioning valve has a warning light switch built in (this is
not a stop light switch.) The warning light will detect any loss of pressure,
for example, a leaky wheel cylinder. We recommend you wire this light into
your system. Any two wire light socket will work. One wire goes to the accessory
power and the other goes to the warning light.
Our proportioning valves provide four functions:
- Proportion pressure front and rear.
- 10 psi. residual check valve.
- Metering valve to apply pressure to the rear brakes before the front
- A brake warning light to detect a loss in pressure