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Sterling Hydraulics

Progressive Power & Control is an Indiana distributor of hydraulic load control cartridge valves and hydraulic manifold systems from Sterling Hydraulics.

Cavities and Line Bodies

Sterling 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

Sterling Diverter Valves

  • Normally closed
  • Normally open

Sterling Flow Control Valves

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

Sterling Load Control Valves

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

Sterling Pressure Regulating Valves

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

Sterling Relief Valves

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

Sterling Sequence Valve

  • Direct acting
  • Pilot operated

Sterling Shuttle Valves

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

Sterling Solenoid Valves

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

Sterling Hydraulic Manifold Blocks