Eaton Model 31931 Pressure Modulating Control Valve

Eaton 7 GPM Pressure Modulating Control Valve Model 31931-CBZ


  • Front Mounted Rotary Deck Mowers
  • Front Mounted Reel Mowers

Similar to other single spool control valves, this valve allows the operator to smoothly position (raise and lower) the mower deck or reels with precision. In addition, lift circuit back pressure can be modulated by operating a rotary needle cartridge which allows the operator to take weight off the cutting units for reduced ground pressure and increased tractive effort or to apply down pressure to the cutting units for improved cutting finish.


  • Cast Iron Bodies
  • Cored Internal Passages
  • 3/4" -16 SAE Inlet and Return Ports
  • 9/16" -18 SAE Work Ports
  • Detent – Float
  • Modulating Valve – Cartridge Needle Type