Sterling Hydraulics

Progressive Power & Control sells hydraulic load control cartridge valves and hydraulic manifold systems from Sterling Hydraulics.

Cavities and Line Bodies

Check valves

  • Check valve packages
  • Direct acting
  • Pilot operated
  • Pilot pistons

Directional valves

  • Air operated
  • Poppet
  • 2 position
  • 2 way
  • Normally closed
  • Manually operated
  • Pilot operated

Diverter valves

  • Normally closed
  • Normally open

Flow control valves

  • Flow divider/combiner valves, Spool type
  • Flow regulator valves/proportional control
  • Flow regulator/restrictor valves

Load control valves

  • 3 port, Independent of back pressure
  • 4 port, Independent of back pressure, Vented to drain line
  • Damped, For inherently unstable applications
  • Restrictive ports 3 to 2
  • Semi restrictive ports 3 to 2
  • Standard version
  • Standard version with surge relief

Pressure regulating valves

  • Direct acting, Spool type with relieving feature
  • Pilot operated, Spool type with relieving feature
  • Proportional control

Relief valves

  • Crossover combined in one cartridge
  • Direct acting
  • External pilot operated, Unloading
  • Pilot operated
  • Pressure equipment directive (PED 97/23/EC) compliant to hazard category IV
  • Proportional control

Sequence valves

  • Direct acting
  • Pilot operated

Shuttle Valves

  • Ball type, Two position, Three way
  • Poppet type, Two position, 3 way
  • Three position, Three way
  • Two position

Solenoid valves

  • Coils
  • Poppet, 2 position, 2 way
  • Proportional controllers
  • Proportional valves
  • Spool

Sterling Hydraulic Manifold Blocks