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    Picture of Paddle Wheel Flow Sensor, 800~1800 mL/min Picture of Paddle Wheel Flow Sensor, 800~1800 mL/min Picture of Paddle Wheel Flow Sensor, 800~1800 mL/min Picture of Paddle Wheel Flow Sensor, 800~1800 mL/min

    Paddle Wheel Flow Sensor, 800~1800 mL/min

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    SKU: SUCH-WFS-PS4765
    $61.76
    ● 800~1800 mL/min ● 1.5 mm pipe diameter ● 3.3–24 V supply voltage ● 2 MPa Max pressure
    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    SUCH paddle wheel flow sensors are suitable for measuring low-flow liquids, with a flow range of 800 to 1800 mL/min and a minimum starting flow as low as 0.6 L/min. Equipped with a highly sensitive paddle wheel structure, the sensor outputs 18,868 pulses per liter of water, with each pulse weighing only 0.053 g, ensuring rapid response to flow changes. The flow sensor's compact 1.5 mm bore design minimizes pressure loss to 0.15 bar, delivering a 0–5 V pulse signal output. This configuration ensures measurement accuracy while effectively reducing system resistance.

    Feature

    Paddle wheel flow sensor feature

    • The paddle wheel flow sensor has a measurement range of 800-1800 L/min, featuring a compact size, high flow accuracy, excellent reliability, and long service life.
    • The flow sensor itself supports a three-position assembly for easy installation and complies with safety regulations.
    • Compared to Hall-effect flow sensors, the photoelectric flow sensor contains no internal magnets, making it more suitable for long-term measurement in potable water applications.

    Dimension (unit: mm)

    Paddle wheel flow sensor dimension

    Installation Direction

    Paddle wheel flow sensor installation direction

    Pulse and Flow Characteristics

    Pulse and flow characteristics

    Specs
    Flow Range 800~1800 mL/min
    Pipe Diameter 1.5 mm
    Pulse Count 18,868 pulses/L
    Single Pulse Weight 0.053 g
    Minimum Flow Rate 0.6 L/min
    Maximum Flow Rate 1.8 L/min
    Pressure Drop 0.15
    Supply Voltage 3.3–24 V (typical 5 V)
    Output Voltage 0–5 V
    Output Current Typical 15 mA (VIN=5 V, VOUT>4.8 V)
    Standby Current Typical 10 mA (VIN=5 V)
    Operating Temperature 0°C~70°C
    Storage Temperature −10°C~75°C
    Max Pressure 2 MPa
    Working Life 50,000 h
    Application

    Irrigation water flow sensor for gas water heater

    Gas Water Heater

    Water flow sensor for water dispenser

    Water Dispenser

    Water flow sensor for water heater

    Water Heater

    FAQ
    ❯

    The paddle wheel flow sensor operates by having the fluid push its internal paddle wheel to rotate. The rotational speed is directly proportional to the flow rate. An internal Hall effect sensor or magnetic induction device converts the rotation signal into a pulse or frequency output. The control system then derives the actual flow data through counting or frequency conversion.

    ❯

    This flow sensor type is primarily suitable for clean water, purified water, and low-viscosity liquids. It is not recommended for media containing significant impurities, particles, or high viscosity, as these can cause impeller jamming, compromising measurement accuracy and service life.

    ❯

    Ensure correct flow direction during installation. Avoid air bubbles and severe vibrations. Installation in straight pipe sections is recommended, and maintain full liquid immersion within the sensor to ensure measurement stability and long-term reliable operation.

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