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NSF Listed Turbine Flow Meter



Item# FTB-431

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $109.37
5-9 $103.90
10-24 $101.71
25-49 $97.34
50-99 $95.15
100+ $92.96

In stock

Lead Time (If not in stock): 7 Days
  • Discontinued, replaced by the BV1000-2000-3000-Series
  • Measures Flow Rates from 0.2 to 4 GPM
  • Lightweight Plastic Design for Multiple Mounting Positions
  • High Accuracy: ±2% of Reading
  • High Repeatability: ±0.5% of Reading
  • Over-Molded Electronics with Integral Cable Strain Reinforcement

FTB-431 Model Options

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

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

  • Accuracy Value ±2% of reading
  • Current Output NPN sinking open collector @ 25 mA
  • electrical Connection 0.91 (3') PVC cable #22 AWG
  • Maximum Operating Pressure 200 PSIG
  • Maximum Ambient Temperature 80°C (176°F)
  • Minimum Ambient Temperature -20°C (-4°F)
  • Power Source 8 mA
  • Supply Voltage 5 to 24 Vdc

The FTB-430 Series is a highly accurate and repeatable, hall effect turbine flow sensor designed for low flow OEM applications. This low cost, NSF Standard 61 listed flow sensor is ideal for water or beverage dispensing applications or any application with water based liquids. The 316SS shaft coupled with Polyoxymethylyne bearings allows for accurate measurements during quick dispensing cycles. The sensor’s standard power and output specifications make it easy to retrofit existing controllers.

    Body glass reinforced PPO
    Turbine PA composite (nylon)
    Axle 316 stainless steel
    Bearings Polyoxymethylyne, POM
Inlet/Outlet Ports: 3/8 NPT male
    Operating: 200 PSIG
    Burst: 1000 PSIG
Operating Temperature: -20 to 80°C (-4 to 176°F)
Viscosity: 32 to 81 SSU (0.8 to 16 centistokes)
Recommended Filtration: < 50 microns
Input Power: 5 to 24 Vdc @ 8 mA
Output (Hz): NPN sinking open collector @ 25 mA
Pulses per Gallon:
    FTB-431: 10,313
    FTB-432: 4994
Maximum Leakage Current: 10µA (5 to 30k pull-up resistor required)
Accuracy: ±2% of reading
Repeatability: ±0.5% of reading
Electrical Connection: 0.91 (3') PVC cable #22 AWG

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Rated 1 out of 5 by from Breaks easily I bought a couple of these for use in an undergraduate lab. They all worked great at the start but within weeks they all stopped functioning. Water flowing at ~ 2-4 LPM was all that was run through them. I'd avoid this product unless you only need a small amount of data.
Date published: 2016-10-25
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