FP 450-80 Level Control Valve with altitude pilot


  • Line pressure driven – Independent operation
  • Bi-level altitude pilot
    • No float, simple installation
    • On/Off service
    • Suitable for low-quality water
  • Fully supported vulcanized diaphragm
    • Rugged radial seal disk
    • Protected diaphragm
  • Dynamically restrained actuation
    • Non-slam closing
  • Balanced rolling-diaphragm
    • High flow capacity
    • Very low opening and closing ΔP requirement
  • External installation
    • Easy access to valve
    • Easy level setting
    • Less wear and tear
  • In-line serviceable – easy maintenance
  • Flexible design – easy addition of features


The Model FP 450-80 Level Control Valve is a hydraulically controlled, diaphragm actuated, control valve.

It shuts at pre-set reservoir high level and fully opens in response to an approximately one-meter (three-foot) level drop, as sensed by the 3-way altitude pilot mounted on the main valve.

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