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Palmer-Bowlus - Open channel flow rate measure.

Palmer-Bowlus - Open channel flow rate measure. DN100÷DN500.

Palmer-Bowlus - Open channel flow rate measure. DN100÷DN500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Palmer-bowlus - open channel flow rate measure. dn100÷dn500.
Principle of flow measurement on pipelines partially full
Measuring range up to up to 315 mc/h
Output signal 4 to 20mA continuous - digital
Palmer-Bowlus channel modeler to prominence
Direct mounting in the tube, or in catch basin
Ideal for flow measurement of round ducts
Price on request
PB PALMER BOWLUS
Essentially a hydraulic modeler designed to increase, upstream of the restriction, the fluid head during its outflow. The Palmer-Bowlus upstream fluid head, increases or decreases in function of the fluid quantity flowing over it. The head measured by a level transmitter is then used to calculate the instantaneous flow rate value. The Palmer-Bowlus is mainly used in pipes or ducts accessible through the manholes. The easy installation, and the contained installation cost, are the reason for the applications number increasing of this system to measure the flow rate.
  • Flow rates from 0,5m3/h to 315m3/h
  • Fiberglass Prefabricated
  • Direct installation in the pipe or manhole
  • Low cost system
  • For flow measurement in outflow pipe or no pressure pipes
  • Particularly suitable for dirty water
  • Ideal to circular duct flowrate measure
  • Matching Sets with all RIELS open channels flow measurement system
Ultrasonic probe 
The measure is based on the principle of the propagation of sound waves (ultrasound) in the air.The probe is equipped with a capsule that emits and receives an ultrasonic frequency.The time that elapses between the emission and aricezione is a function of the distance between the emitting source and the surface of the rebound.This probe is not suitable for liquids that form surface scum. 
    MODELSRANGE
    DN100 (4")
    0,45÷6m3/h
    DN150 (6")
    0,68÷26m3/h
    DN200 (8")
    1,2÷28m3/h
    DN250 (10")
    1,29÷86m3/h
    DN300 (12")
    2,27÷88m3/h
    DN400 (16")
    2,23÷215m3/h
    DN500 (20")
    5,34÷315m3/h

    Technical Characteristics

    Measuring principle:
      • Ultrasonic
      Measuring range / adjustment:
        • 315 [mc/h]
        Outputs available:
          • Relay contact
            Open contact
          • 4÷20 [mA]
          Operating voltage [V]:
            • 85÷230 Vac
              24 Vdc
            Operating temperature:
              • -40÷+70 [°C]
              Pressure max:
                • 1.5 [Bar]
                Process connection:
                  • Threaded: 1" Gas M
                  Materials in contact with the media:
                    • PP
                    Degree of protection:
                      • IP68
                      Approvals:
                        • EC Declaration of Conformity