7490 - 30th Avenue North                                                  INSTALLATION INSTRUCTIONS

St. Petersburg, FL  33710                                                   ADJUSTABLE PROPORTIONING VALVE

Telephone: 727-345-5292                                                   CATALOG #11730

www.vpandp.com

 

 

READ THOROUGHLY BEFORE BEGINNING!

 

Adjustable proportioning valves are essentially pressure reducing valves and are often utilized in disc/drum, disc/disc and drum/drum braking systems.  The valve is used to control front-to-rear brake pressure bias and will work for all types of vehicles.  Install this valve between the distribution block and the rear flex hose in the front-to-rear rigid brake line.  Always use tube wrenches to tighten fittings properly.  Final settings of this valve will depend on your particular vehicle, and individual preference.

 

DEFINITIONS

 

“IN”  (Stamped on valve) – Rigid brake line from the distribution block to this port.  On early cars:  the master cylinder rear port to this port.

 

“OUT”  (Stamped on valve) – Rigid brake line to the rear flex hose.

 

“DECREASE” – Reduces the brake line pressure to the rear brakes.

 

“INCREASE” – Increases the pressure to the rear brakes.

 

SPECIFICATIONS

 

Maximum pressure regulation:  300 psig.  Inlet port of valve:  1/8 – 27 NPT

Standard adaptors:  3/8” – 24 for 3/16” line.

Mounting hole diameter: .250” (two).