Priority Flow Control Valves With Built-in Relief

The new FRRV valves are combination fixed, pressure compensated, priority flow controls with built-in adjustable relief on the priority leg.

HydraForce’s new FRRV series “two-in-one” cartridge valve designs are an innovation the mobile equipment market has been waiting for. The new FRRV valves are combination fixed, pressure compensated, priority flow controls with built-in adjustable relief on the priority leg, and an integral damping chamber in the priority section to improve stability. Because two valve functions have been combined into a single cartridge, using one valve instead of two will reduce space requirements and cost in a hydraulic system.

HydraForce has released two different cavity size versions. The FRRV10-41F has a maximum inlet flow of 10 gpm/38 lpm with a fixed priority flow from 0.25 gpm/1 lpm to 5 gpm/19 lpm. The FRRV12-41F is rated for a maximum inlet flow of 20 gpm/76 lpm and has a fixed priority flow from 0.25 gpm/1 lpm to 12 gpm/45 lpm.

Because this priority flow is factory-set to the application, unwanted field-tampering of this critical priority-flow is eliminated.

The relief valve in the FRRV10-41F is virtually an RV10-20 direct-acting relief cartridge, while the relief in the FRRV12-41F uses the RV12-26 style relief. All of the standard HydraForce adjustment options are available.

The relief pressure settings are adjustable from 250 psi/17 bar to 3000 psi/204 bar. Both valves are capable of system pressures to 4000 psi/276 bar.

These new valves are suited for applications that require re-combining the priority flow to the bypass flow. Special internal drillings and logic allow for re-combining flows, or the priority flow can be sent back to the tank.