Pressure Reducing Valves


The pressure reducing valve is a direct acting proportional regulator, self operated; which regulates a high upstream pressure to a smaller downstream pressure. The downstream pressure is regulated, this means the valve closes when the downstream pressure rises.


  • PREDU®-ANSI Pressure Reducing Valve
  • Diaphragm Actuators
  • Water Seal Pot


  • Screwed and marginal seats
  • Exact and easy adjustment
  • Diameter independent spring ranges
  • Balancing and sealing bellows
  • Three exchangeable spring sizes
  • Construction without pillars
  • Five exchangeable actuator sizes


  • Standard: Steam, neutral gases, vapors and liquids, etc.