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Plastic Paddlewheel Flow Meters With Optional RTD Sensor



Item# FPB1408

In stock

Lead Time (If not in stock): 6 weeks
  • Easy to Install and Operate
  • Mounts in Any Direction
  • Only One Moving Part
  • Visual Flow Indication

FPB1408 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Flow Range
Wetted Materials
Process Connection Size
Max Process Temperature
Max Operating Pressure
Output Signal
Supply Power
Process Connection Type

  • Bearing Material Sapphire jewels
  • LID Material Acrylic or PVDF
  • Maximum Ambient Temperature 60 {C} (140 {F})
  • Maximum Pressure 10 bar (150 psig)
  • Maximum Temperature Measurement 60 {C} (140 {F})
  • Maximum Viscosity Calibrated 1 cSt
  • O-ring Material EPDM
  • Paddlewheel Material PVDF
  • Shaft Material Nickel tungsten carbide
  • Power 5 to 24 Vdc @ 2 mA
  • Response Time At 1 sec 10 to 90% of full scale
Fluid flowing through the FPB1400 causes the paddlewheel to spin. As the magnets embedded in the paddle spin past the sensor, electrical pulses are produced in which frequency is proportional to the flow rate. The number of pulses per desired time interval and the K-factor (number of pulses/gallon) make it is easy to calculate the flow rate and volume passing through the unit.

Accuracy: ±1% FS
Max Temperature: 60°C (140°F)
Max Pressure: 10 bar (150 psig)
Power: 5 to 24 Vdc @ 2 mA
Output Signal: NPN open collector (load 30 mA max)
Body Dimensions: 56 H x 108 L x 53 mm D (2.2 x 4.25 x 2.2")
Cable: Flow 1.8 m (6'), RTD 0.3 m (1') (-RTD models)
RTD: Platinum 0.00385 TCR, meets EN 60751, Class B (-RTD models)
Max Pressure Drop: 15 psi on size 2 units 20 psi on all other sizes
Viscosity: Calibrated 1 cSt, up to 50 cSt with field calibration
Response Time: At 1 sec 10 to 90% of full scale, at 2 sec below 10% of full scale
Wetted Materials Polypropylene Models
Body: Polypropylene
LID: Acrylic
Paddlewheel: PVDF
Shaft: Nickel tungsten carbide
Bearings: Sapphire jewels
O-Rings: EPDM
RTD: 316 SS casing PVDF Models
Body: PVDF
Paddlewheel: PVDF
Shaft: Zirconia ceramic
Bearings: Sapphire jewels
O-Rings: PTFE
RTD: 316 SS casing (-RTD models)
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