Flow Controllers | Mass Flow Controllers | RS
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    Flow Controllers

    What is a Flow Controller?

    A flow controller, which is commonly referred to as a "mass flow controller" is a device that measures and controls the flow of liquids and gases. Flow Controllers are designed to regulate a specific type of gas or liquid at a particular range of flow rate as an electric signal.

    The electric signal allows the Flow Controller to automatically set the flow rate and is not affected by external conditions or change in the pressure. Mass flow controllers are used in a wide range of industrial applications when the accurate flow control rate is required.

    How does a Flow Controller work?

    The medium enters from the inlet and flows through the sensor or the bypass. The sensor then detects the mass flow rate as a relative change in temperature and converted to an electric signal. This signal passes through the amplification, correction and comparison control circuits and put out as a voltage reading (e.g. 5V).

    The comparison control circuit compares the flow rate electric signal to flow rate setting and sends the difference between the two readings to the valve driving circuit. Finally, the flow rate valve moves to adjust the flow rate actual to the flow rate setting so the flow controller is set to the correct level.

    Types of Flow Contoller

    The flow rate of a mass flow controller is usually classified by two types:

    • Volumetric flow - this measurement is mainly affected by the temperature and pressure.
    • Mass flow - this works within a multitude of industrial environments, used as indispensable equipment because of the need for accurate control of flow rate is required.

    They are super easy to install; most users can install them without the assistance of a professional. The majority of valves connect directly to faucets at the point where the water line connects.

    Benefits of Flow Controllers

    Mass Flow Controllers have many benefits to the user, including:

    • Cost Effective
    • Maintain constant pressure whilst in use
    • Less air consumption
    • Reduce the cost on water and sewer bills
    • Environmentally efficient
    • Conserve up to 85% of the water that is used

    Mass Flow Controllers are also long life, durable and operate effectively.

    Browse the broad range of Flow Controllers RS Components have to offer from industry leading brands.

    74 Products showing for Flow Controllers

    Omron
    0 → 3 L/min
    3-Wire Connector
    Analogue
    Compact
    10.8 → 26.4 V dc
    -
    -
    0°C
    +50°C
    SMC
    0.2 → 10 L/min
    -
    PNP
    Compact
    24 V dc
    LED
    1/8 in
    0°C
    +50°C
    Burkert
    -
    Cable Plug
    Frequency, NPN
    Compact
    12 → 30 V dc
    LCD
    DN 6 → 65 mm
    -15°C
    +60°C
    Burkert
    -
    Cable Gland
    Analogue, Frequency, Relay
    -
    18 → 36 V dc
    -
    DN 6 → 400 mm
    -10°C
    +60°C
    SMC
    230 L/min
    -
    -
    Panel Mount
    -
    -
    6 mm
    -5°C
    +60°C
    ifm electronic
    200 → 3000 (Gas) cm³/s, 3 → 300 (Liquid) cm³/s
    M12 Connector
    PNP
    -
    19 → 36 V dc
    LED
    18 mm
    -25°C
    +80°C
    Omron
    0 → 1 L/min
    Cable
    Analogue
    Compact
    10.8 → 26.4 V dc
    -
    -
    -10°C
    +60°C
    Omron
    0 → 5 L/min
    Cable
    Analogue
    Compact
    10.8 → 26.4 V dc
    -
    -
    -10°C
    +60°C
    SMC
    790 L/min
    -
    -
    Panel Mount
    -
    -
    8 mm
    -5°C
    +60°C
    SMC
    50 → 500 L/min
    M12 Connector
    PNP
    -
    12 → 24 V dc
    LED
    1/2 in
    0°C
    +50°C
    SMC
    90 L/min
    -
    -
    Panel Mount
    -
    -
    6 mm
    -5°C
    +60°C
    SMC
    16 L/min
    -
    PNP Open Collector
    -
    12 → 24 V
    LED
    -
    -
    -
    SMC
    11.5 L/min
    -
    NPN Open Collector
    Panel Mount
    -
    -
    -
    -5°C
    +60°C
    SMC
    1000 L/min
    -
    PNP Open Collector
    -
    12 → 24 V
    -
    -
    -
    -
    Burkert
    2 → 1200 L/min
    Cable Plug, Swivel 5-Pin M12 Plug
    Relay
    Compact
    12 → 30 V dc
    LCD
    DN 15 → 100 mm
    0°C
    +60°C
    ifm electronic
    100 → 1000 cm³/s
    Cable
    Relay
    -
    80 → 250 V ac/dc
    LED
    23 mm
    -10°C
    +50°C
    Burkert
    -
    Cable Plug
    PWM
    Panel Mount
    24 V dc
    -
    -
    -10°C
    +60°C
    SMC
    100 L/min
    -
    -
    -
    24 V
    -
    -
    -
    -
    SMC
    4.6 SCFM
    -
    -
    L-Bracket Mount
    -
    -
    4 mm
    -5°C
    60°C
    Burkert
    -
    Multi-Pin
    Analogue, PTM, PWM
    Compact
    24 V dc
    LCD
    DN 6 → 65 mm
    0°C
    +70°C
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