What is a Balanced-Poppet Valve Design?

What is a Balanced-Poppet Valve Design?

Balanced Poppet Diagram

Balanced-Poppet valves have several advantages over unbalanced valves, and spool valves.

  • Optimized solenoid and return spring forces.
  • Unaffected by function or porting choices.
  • Unaffected by media pressure, or pressure fluctuations.
  • Minimal internal friction to overcome.
  • Large flow path opened with short stroke.
  • Compatible with a variety of media.
  • Impervious to poor media.


Acceptable Media:

  • Clean dry air
  • Lubricated air
  • Moisture-laden air
  • Air with impurities
  • Vacuum 
  • Inert gases


  • Simple Construction
  • High flow
  • Low power consumption
  • Small size
  • Very low leak rate
  • Long service Life