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    G1/4" Magnetic Water Flow Switch

    5 out of 5 based on 2 reviews | Write a review
    $45.65
    The G1/4" magnetic water flow switch is designed for purified water systems. It operates on 0-110VDC and features a compact, durable plastic housing. With quick response time (<1 second), low start flow, and high-pressure resistance, it ensures reliable flow monitoring and control in compact water treatment setups. Suitable for use with a relay for extended functionality.
    *
    SKU: ATO-FS-S0
    This product has a minimum quantity of 2
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    This magnetic water flow switch is specially designed for monitoring water flow in purified water applications, including RO systems, filtration units, and drinking water dispensers. Compact, reliable, and easy to install, it helps ensure system efficiency and safety by providing real-time flow detection. Below are the key details of this water flow switch.

    Specification

    Model ATO-ZJMFS-S
    Interface Size G1/4" quick connector
    Start Flow
    • S2 type: <300 ml/min
    • S1 type: <200 ml/min
    • S0 type: <100 ml/min
    Response Time <1 second
    Switch Type Normally open
    Wire Length 50 cm
    Terminal Type XH-2
    Wire Connection Strength 20N for 10s (axial & vertical direction, no damage)
    Water Pressure Resistance Withstands 1.05 MPa static pressure for 5 min (no leakage or damage)
    Load Current 0.5 A
    Rated Voltage 0–110 VDC
    Medium Temperature Range 5–50 °C
    Ambient Temperature ≤60 °C
    Housing Material Plastic
    Weight 53 g
    Application Purified water systems (RO water purifiers, filtration systems, drinking water dispensers)


    Feature

    • Compact G1/4" Flow Switch Design: The small-size magnetic liquid flow switch fits easily into limited spaces in water treatment setups.
    • Quick-Response Magnetic Switch: With a reaction time under 1 second, water flow sensor switch provides timely flow status feedback.
    • Low Start Flow Capability: This water flow switch is designed to activate at minimal flow rates, making it suitable for low-flow purified water systems.
    • High Pressure-Resistant Construction: The flow water switch can endure static water pressure up to 1.05 MPa without leakage or damage.
    • Durable Magnetic Water Flow Switch Build: Features robust plastic housing and reinforced wire connections, passing drop and pull tests.

    Working Principle

    Water flowing through the dedicated channel pushes a magnet inside the switch. When the magnet moves into the detection range, the reed switch senses the magnetic field and closes the circuit, sending a flow signal. Once water stops, a spring pushes the magnet back to its original position, causing the reed switch to open and stop the signal. This provides a simple and reliable method for flow presence detection.

    Dimension (Unit: mm)

    1-4 inch water flow switch dimensions

    5 Tips for Magnetic Water Flow Switch for Purified Water

    1. This magnetic water flow switch should be used with a relay for safe switching of higher loads or control circuits.
    2. Install water flow switch for pump horizontally to ensure accurate magnet movement and consistent performance.
    3. Only use with purified water; avoid media containing particles or corrosive chemicals to extend service life.
    4. Check wiring connections before use to prevent poor contact or signal failure.
    5. For systems with frequent start-stop cycles, consider periodic inspection of the reed switch and internal spring to maintain reliability.
    Existing reviews of G1/4" Magnetic Water Flow Switch
    Easily replaceable flow switch
    I bought this flow switch to replace a failed flow switch on my brine chlorinator. The ATO flow switch is easy to install, includes wires to the box, and has some useful features. First, the wires going to the main box are offset in the direction of the flow switch, which means that in my case it was easy to tell which direction was the right way to mount upside down without seeing the arrows.
    From: Eylül | Date: 18/05/2022
    Was this review helpful? Yes No (0/0)
    Useful flow sensing switch
    Good sensor products. G1 / 4 magnetic flow switch can be used in various water systems. I mainly use it to control my electric water heater. It is easy to use. So far, the work is going well.
    From: June | Date: 22/07/2021
    Was this review helpful? Yes No (0/0)
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