McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    13 Products

    Flow Transmitters with Sight

    Image of Product. Front orientation. Flow Transmitters. Flow Transmitters with Sight.
    Send flow rate data using these transmitters while also being able to visually confirm liquid is flowing. They measure flow by counting how many times the turbine turns as the liquid moves through it. To prevent clogging the turbine and other damage, use them only with clean, low-viscosity liquids. These transmitters, also known as transducers, convert the flow measurement to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs), to monitor flow or control equipment. Mount them directly inline with your system. They measure accurately in any mounting orientation.
    These transmitters are calibrated with water. You can use them with other liquids, but they may not measure accurately if the liquid’s viscosity differs from water.
    Analog Transmitter Output—Transmitters with an analog output increase their output signal as flow increases. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range.
    Digital Pulse Output—Transmitters with a digital pulse output send flow data using spikes of voltage that match the input voltage of the transmitter. The higher the flow, the more pulses they send.
    Flow Measurement
    Type
    Pipe
    Connections
    Flow Range,
    gpm
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Seal Material
    Input Voltage
    Range, V DC
    Mounting
    Position
    Field
    Recalibratable
    Pulse Freq.,
    Hz
    Each
    One 4-20 mA Analog Transmitter Output—Wire Lead Connection
     
    316 Stainless Steel Body with 316 Stainless Steel Fitting
    Turbine1 NPT Female1.5 to 155 1/4"-2% to 2%500 psi @ 70° F20 to 212Buna-N12 to 24Any AngleNo—00000000000000000
    Turbine1 NPT Female5 to 505 1/4"-2% to 2%500 psi @ 70° F20 to 212Buna-N12 to 24Any AngleNo—0000000000000000
     
    One 0-5V DC Analog Transmitter Output—Wire Lead Connection
     
    316 Stainless Steel Body with 316 Stainless Steel Fitting
    Turbine1 NPT Female1.5 to 155 1/4"-2% to 2%500 psi @ 70° F20 to 212Buna-N12 to 24Any AngleNo—0000000000000000
    Turbine1 NPT Female5 to 505 1/4"-2% to 2%500 psi @ 70° F20 to 212Buna-N12 to 24Any AngleNo—0000000000000000
     
    One Digital Pulse Output—Wire Lead Connection
     
    Brass Body with Brass Fitting
    Turbine1 NPT Female8 to 603 15/16"-15% to 15%200 psi @ 70° F33 to 212Fluoroelastomer4.5 to 24Any AngleNo15 to 2250000000000000
     
    316 Stainless Steel Body with 316 Stainless Steel Fitting
    Turbine1 NPT Female8 to 603 15/16"-15% to 15%200 psi @ 70° F33 to 212Fluoroelastomer4.5 to 24Any AngleNo15 to 2250000000000000
     

    Flow Transmitters

    Image of Product. Back orientation. Flow Transmitters. Flow Transmitters, Variable Area Flow Measurement.

    Variable Area

    Flow

    Measurement

    Send flow rate measurements to monitor and control equipment. Also known as transducers, these transmitters convert flow rate measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs). As flow increases, the output signal increases. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range. Mount them directly inline with your system. They measure flow correctly no matter their mounting orientation.
    These transmitters are calibrated with water. You can use them with other liquids, but they may not measure accurately if the liquid’s viscosity differs from water.
    Variable Area Flow Measurement—Variable-area transmitters determine flow rate by tracking where the liquid pushes an internal piston.
    Flow Measurement
    Type
    Pipe
    Connections
    Flow Range,
    gpm
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Seal Material
    Input Voltage
    Range, V DC
    Mounting
    Position
    Field
    Recalibratable
    Enclosure
    Rating
    Each
    One 4-20 mA Analog Transmitter Output—4-Pole Micro M12 Connection Plug
     
    316L Stainless Steel/Aluminum/Brass/Plastic Body with 316 Stainless Steel/Brass Fitting
    Variable Area1 NPT Female0.5 to 273 5/8"-5% to 5%362 psi @ 212° F14 to 212Fluoroelastomer18 to 32Any AngleNoIP65, IP67000000000000000
     

    Flow and Temperature Transmitters

    Image of Product. Back orientation. Flow Transmitters. Flow and Temperature Transmitters, Variable Area Flow Measurement.

    Variable Area Flow

    Measurement

    Send flow rate and temperature measurements simultaneously to a programmable logic controller (PLC), data logger, or other receiving device. Used to monitor status or control equipment, these transmitters, also known as transducers, convert measurements to an electrical signal that is interpreted by receiving devices. As flow or temperature increases, the output signal increases. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range. Mount them inline with your pipe system. They’ll measure flow correctly in any mounting orientation.
    A digital display makes it easy to view readings and adjust settings at the source. To change settings and receive error messages remotely from your PLC or computer, program one of the outputs to use IO Link. You’ll need an IO Link controller (not included) to connect to your interface.
    Variable Area Flow Measurement—Variable-area transmitters determine the flow rate by tracking where the liquid pushes the piston. They have two configurable outputs. One can be wired as an analog output or a digital switch. The other one can be wired as a digital switch, digital pulse output, or IO Link. Pulse outputs send flow data using spikes of voltage that match the input voltage of the transmitter. The higher the flow, the more pulses they send. These transmitters are calibrated with water, glycol solutions, and coolants but can be recalibrated in the field for other liquids.
    Flow Measurement
    Type
    Pipe
    Connections
    Flow Range,
    gph
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Seal Material
    Input Voltage
    Range, V DC
    Mounting
    Position
    Field
    Recalibratable
    Enclosure
    Rating
    Each
    One Digital Switch/Pulse Output and One 4-20 mA Analog Transmitter/Digital Switch Output—4-Pole Micro M12 Connection Plug
     
    316 Stainless Steel Body with 316 Stainless Steel Fitting
    Variable Area1 NPT Female30 to 1,6205 3/4"-5% to 5%362 psi @ 70° F14 to 212Fluoroelastomer18 to 30Any AngleYesIP65, IP6700000000000000
     

    High-Accuracy Flow and Temperature Transmitters

    Image of Product. Back orientation. Flow Transmitters. High-Accuracy Flow and Temperature Transmitters.
    Also known as magmeters, these transmitters use a magnetic field to measure flow rate and temperature with high accuracy. Because they use a magnetic field, they only work with conductive liquids, such as water. These transmitters, also known as transducers, convert measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs) to monitor flow or control equipment. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. As flow or temperature increases, the output signal increases. These transmitters have one analog output for flow and another for temperature. They only give accurate readings within the rated measurement range. A digital display makes it easy to view readings and adjust settings at the source. Mount these transmitters inline with your pipe system. They measure flow correctly in any mounting orientation.
    These transmitters are calibrated with water. They can only be used with liquids with a conductivity of at least 20 µS/cm.
    Flow Range
    Flow Measurement
    Type
    Pipe
    Connections
    Gallons per
    Minute, gpm
    Liters per
    Minute, L/min
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Input Voltage
    Range, V DC
    Mounting
    Position
    Field
    Recalibratable
    Enclosure
    Rating
    Each
    Two 4-20 mA Analog Transmitter Outputs—4-Pole Micro M12 Connection Plugs
     
    316 Stainless Steel/Plastic/Polybutylene Body with 316 Stainless Steel Fitting
    Magnetic Induction1 NPT Female0.1 to 26.40.2 to 1002 1/8"-2% to 2%225 psi @ 70° F0 to 17520 to 30Any AngleNoIP67
    		00000000000000000
     

    Build-Your-Own Flanged Pipe Flow Transmitters

    Image of System. Components Sold Separately (Pipe Flanges Not Included). Front orientation. Contains Annotated. Flow Transmitters. Build-Your-Own Flanged Pipe Flow Transmitters.

    Components Sold Separately (Pipe Flanges

    Not Included)

    Install these transmitters between two flanges in a flanged pipe system to measure flow rate and send the data to a remote display or programmable logic controller (PLC). For easy cleaning and maintenance, you can slide the transmitter out from between the flanges. A complete transmitter consists of a flow transmitter, display, and mounting hardware kit (all components sold separately). Flowing liquid turns the turbine in the transmitter, while the easy-to-read display counts the number of turns to measure and transmit the flow. The display also shows total and batch flow volumes. Use these transmitters with clean, low-viscosity liquids to avoid clogging or other damage to the internal parts. Mount them inline with your pipe system. They’re accurate in any mounting orientation.
    Also known as transducers, these transmitters help you monitor status or control equipment by converting measurements to a digital pulse that can be interpreted by receiving devices. Each pulse is a spike of voltage. The higher the flow, the more pulses they send. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the measurement range and output signal of the transmitter. Transmitters will only provide accurate readings within the rated measurement range.
    The transmitters are calibrated with water but can be used with other liquids.
    Flow Transmitters
    Image of Product. Front orientation. Flow Transmitters. Build-Your-Own Flanged Pipe Flow Transmitters, Flow Transmitters.
    Flange
    Flow Measurement
    Type
    Pipe
    Size
    Flow Range,
    gpm
    Bore
    Size
    OD
    Type
    For Flange
    ANSI Class
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Mounting
    Position
    Field
    Recalibratable
    Pulse Frequency per
    Volume, pulse per gal.
    Each
    One Digital Pulse Output—2-Pin BNC Connection Plug
     
    316/316L Stainless Steel Body with 316/316L Stainless Steel Fitting
    Turbine1
    		3 to 307/8"2"Round150
    		4"-1.0% to 1.0%285 psi @ 70° F-150 to 350Any AngleNo3,10000000000000000
     
    Mounting Hardware Kits
    Image of Product. Front orientation. Flow Transmitters. Build-Your-Own Flanged Pipe Flow Transmitters, Mounting Hardware.
    For Pipe
    Size
    For Flange
    ANSI Class
    Includes
    Each
    1
    		150
    		4 Studs, 12 Nuts, 2 Gaskets, 2 Centering Rings00000000000000
     

    Flow, Pressure, and Temperature Transmitters for Gases

    Image of Product. Front orientation. Flow Transmitters. Flow, Pressure, and Temperature Transmitters for Gases.
    Measure and transmit flow rate, pressure, and temperature of industrial gases, such as air, argon, CO2, and nitrogen, flowing through your system. These transmitters are ideal for applications where temperature and pressure can fluctuate. To calculate flow rate, they generate a small amount of heat, then measure the cooling effect your gas has on it. Also known as transducers, these transmitters convert measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs). As flow, temperature, and pressure increases, the output signal increases. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range. Mount them directly inline with your system. They measure correctly no matter their mounting orientation.
    A digital display makes it easy to read measurements and adjust settings based on your gas. These transmitters have two configurable outputs, and each output can only be wired for one measurement (flow rate, pressure, or temperature). Outputs configured as digital pulse send flow data using spikes of voltage that match the input voltage of the transmitter. One of the outputs can be wired for IO-Link, so you can change settings and receive error messages remotely from your PLC or computer. You’ll need an IO Link controller (not included) to connect to your interface.
    These transmitters are calibrated with air but still measure accurately when used with other gases.
    Flow Measurement
    Type
    Pipe
    Connections
    Flow Range,
    scfm
    End-to-End
    Lg.
    Accuracy
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Seal Material
    Input Voltage
    Range, V DC
    Mounting
    Position
    Field
    Recalibratable
    Enclosure
    Rating
    Each
    One Digital Switch/Pulse Output and One 4-20 mA Analog Transmitter/Digital Switch/Pulse Output—4-Pole Micro M12 Connection Plug
     
    304 Stainless Steel Body with 304 Stainless Steel Fitting
    Thermal1 NPT Male0.4 to 13218 3/4"-6% to 6%230 psi @ 70° F14 to 140Fluoroelastomer18 to 30Any AngleNoIP65, IP670000000000000000
     
    back to top