The JPDF09 series reverse parking brake valve employs a direct-acting three-way pressure-reducing valve principle for return-oil braking systems. It functions as a service brake valve by utilizing spring-applied/hydraulically released brakes. “Reverse adjustment” refers to generating braking force by reducing the preset pressure, which maintains the brake in a fully released state. The preset pressure must be adjusted to a level higher than the pressure required for full release and maintained to prevent brake drag. The handle features a self-locking function in the parking position to prevent accidental operation.

Technical Parameters

Hydraulic Schematic Diagram