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Flow Transmitters

Flow transmitters are key devices used to measure the flow of a fluid or gas through a pipe or a tube. These instruments serve crucial functions in various industries by providing accurate flow measurement data, which is integral for process control and monitoring.

Flow transmitters work in tandem with flow meters. These meters come in many types, such as differential pressure flow meters, positive displacement flow meters, and volumetric flow meters. Each flow meter type is designed for specific applications and fluid characteristics.

Differential pressure flow meters, which include orifice plates and flow nozzles, function by causing a pressure drop in the fluid flow. The flow rate is then measured based on the differential pressure across these devices. This measurement technique is highly reliable, although it requires careful installation and maintenance.

Positive displacement flow meters, on the other hand, use mechanical bodies with moving parts to directly measure the volume of fluid or gas passing through the meter. They are particularly suitable for measuring low flow rates and offer high accuracy. The volumetric flow rate obtained can be converted to mass flow rate by considering the fluid density.

Products

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$1445.28
Dwyer 102-AV is an Av Durablock® Air Velocity Gauge Kit. It accurately measures air velocity and pressure in a compact design. With a clear digital display and easy-to-use functions, it ensures precise readings. The durable and reliable construction ensures long-term use. This kit is essential for monitoring air flow in various applications.
$1320.93
Dwyer 477-1T-AV Air Velocity Kit is a reliable and efficient solution for measuring air velocity. Its versatile design enables easy installation and accurate readings. With its durable construction and user-friendly interface, it ensures long-lasting performance and is suitable for various applications.
$1320.93
Dwyer 477-0T-AV Air Velocity Kit includes everything needed to measure air velocity accurately. With its high precision sensor and user-friendly interface, it provides reliable measurements for various applications.
$1320.93
Dwyer 477-00T-AV Air Velocity Kit is a compact and versatile instrument for measuring air velocity in various applications. It features a digital display, three selectable ranges, and a built-in probe. This kit is designed for accuracy and ease of use, making it ideal for HVAC technicians, facilities managers, and researchers.
$1362.79
Dwyer 477-000T-AV is an Air Velocity Kit designed for accurate airflow measurements. It includes a handheld digital meter with a remote vane anemometer for easy data collection. With a measurement range of 0-6000 FPM and an accuracy of ±3%, this kit is a reliable tool for HVAC technicians and industrial applications.
$315.06
Dwyer SFI-801-3/4-A711 Sight Flow Indicator/Transmitter is a versatile and reliable product suitable for a wide range of applications. With a temperature range of -20 to 212°F and an accuracy of ±5% of FS, it provides accurate and reliable measurements. The power requirement of 8 to 28 VDC ensures easy integration into existing systems. The electrical connections and output signals make it convenient to use. It is compatible with various fluids and can withstand pressures up to 125 psi. With a frequency range of 0 to 100 Hz and a maximum viscosity of 200 SSU, it can handle different flow conditions. The electrical termination provides flexibility in terms of input and output options. Overall, the Dwyer SFI-801-3/4-A711 is a durable and efficient sight flow indicator/transmitter.
$136.57
Dwyer SFI-801-3/4 Sight Flow Indicator/Transmitter is a reliable and accurate device for monitoring fluid flow. With a temperature range of -20 to 212°F and an accuracy of ±5% of FS, it provides precise readings. It operates on a power requirement of 8 to 28 VDC and has electrical connections for easy installation. The output signal includes normally open and normally closed switches for added convenience. With compatibility for various fluids and a pressure limit of up to 150 psi, it is suitable for a wide range of applications. The product also features a maximum viscosity of 200 SSU and electrical termination options for easy integration into existing systems.
$315.06
Dwyer SFI-801-1/2-A711 is a sight flow indicator/transmitter with a temperature range of -20 to 212°F. It has an accuracy of ±5% of full scale and requires a power supply of 8 to 28 VDC. The electrical connections include a black lead for ground, a white lead for normally open, and a green lead for normally closed. It has a white lead output signal for normally open switch and a green lead output signal for normally closed switch. The wetted materials include a body made of UV stabilized polycarbonate and a window made of polycarbonate. The rotor is made of red UV stabilized PBT and rotor pin is made of 316 SS. The pressure limit is 125 psi and maximum viscosity is 200 SSU. The electrical termination includes a black lead for ground, a red lead for 15 to 28 VDC input, and a white lead for 1 to 10 VDC output.
$136.57
Dwyer SFI-801-1/2 Sight Flow Indicator/Transmitter is a temperature range of -20 to 212°F (-29 to 100°C). With an accuracy of ±5% of FS, it requires 8 to 28 VDC power. It has electrical connections for ground, normally open, normally closed, and power supply. The output signal includes normally open and normally closed switches. It is compatible with various fluids and has wetted materials such as Polysulfone, UV stabilized polycarbonate, 316 SS, and more. It has a pressure limit of 125 psi (8.62 bar) and maximum viscosity of 200 SSU. The electrical termination includes ground, 15 to 28 VDC input, and 1 to 10 VDC output.
$315.06
Dwyer SFI-800-3/4-A711 Sight Flow Indicator/Transmitter is a reliable and accurate device for monitoring fluids. With a temperature range of -20 to 212°F and an accuracy of ±5% of FS, it operates with a power requirement of 8 to 28 VDC. It provides white lead normally open switch and green lead normally closed switch output signals. The wetted materials include polysulfone, UV stabilized polycarbonate, and 316 SS. It has a pressure limit of 150 psi and a maximum viscosity of 200 SSU. The electrical termination is black lead for ground, red lead for 15 to 28 VDC input, and white lead for 1 to 10 VDC output.
$136.57
Dwyer SFI-800-3/4 is a Sight Flow Indicator/Transmitter with a temperature range of -20 to 212°F (-29 to 100°C). It has an accuracy of ±5% of FS and requires a power supply of 8 to 28 VDC. The electrical connections include ground, normally open, normally closed, and 8 to 28 VDC. The output signals are normally open and normally closed switches with a maximum load of 100 mA and 28 VDC. This product is designed for use with compatible fluids and is constructed with materials such as polysulfone and UV stabilized polycarbonate. The pressure limits are 150 psi (SFI-800) and 125 psi (SFI-801), with a frequency range of 0 to 100 Hz. It can handle a maximum viscosity of 200 SSU and has electrical termination options for ground, 15 to 28 VDC input, and 1 to 10 VDC output.
$315.06
Dwyer SFI-800-1/2-A711 is a Sight Flow Indicator/Transmitter with a temperature range of -20 to 212°F (-29 to 100°C). It has an accuracy of ±5% of FS and requires a power supply of 8 to 28 VDC. The electrical connections consist of black, white, green, and red leads. It provides a white lead normally open switch and a green lead normally closed switch with a maximum output of 100 mA and 28 VDC. This product is compatible with various fluids and is made with materials such as polysulfone, UV stabilized polycarbonate, 316 SS, and fluoroelastomer. It has a pressure limit of 150 psi (10.34 bar) and a frequency range of 0 to 100 Hz. It can handle fluids with a maximum viscosity of 200 SSU and features electrical termination with ground, 15 to 28 VDC input, and 1 to 10 VDC output.