Flow
Flow Measurement Instrumentation for Accurate Data
Reliable Flowmeters and Solenoid Valves

Find Your Flow with Solutions by
M.L. Johnson
We supply the highest-quality flow measurement instrumentation to meet your specific needs. Regardless of your industry or application, the experts at M.L. Johnson are here to help you find the flow measurement instruments that will provide consistent, accurate data, improve your operational efficiency, and streamline your workflow.
A Complete Approach to Flow Solutions
When you contact us, we’ll send one of our experts to your facility for an onsite evaluation. We focus on the application details and your process line during this evaluation. From there, we advise on the best solutions for your unique needs. If you don’t have time for an in-person assessment, we’ll schedule a conversation to ensure we fully understand your facility and application. Once we’ve found the right flow solution, we’ll send it to you quickly, often beating our competitor’s lead times.
Hands-On Support
During installation, our team is available to help ensure our flow instrumentation is perfectly configured, programmed, calibrated, and wired to succeed in your specific applications. If an issue arises with any of our solutions, we are here to troubleshoot and provide hands-on support free of charge.
Safety and Accuracy
We are constantly looking for ways to save you time and money while still prioritizing safety in your operations. All of our flow instrumentation meets or exceeds industry safety standards. The best instruments operate safely, reliably, and accurately, so you don’t have to think about them.
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Explore Flow
Instrumentation
Pulsar Measurement
Pulsar Measurement’s award-winning products are favored worldwide due to their reliability and easy menu-driven set-up. Pulsar’s product range has been designed to provide a full range of alternatives, from single point of measurement installations right through to complex multi-point applications with digital communications and levels of measurement. For More
- Doppler & Transit-Time Clamp-On Flowmeters
- Open-Channel Flow Measurement
- Area-Velocity Flowmeters
- Battery-Powered Ultrasonic Flowmeters
Seametrics
Seametrics produces several different types of flow meters. From industrial magnetic flow meters to mechanical paddlewheel meters, we offer several solutions for precision fluid measurement. For More
- Electromagnetic Flowmeters (in-line & insertion styles)
- Paddlewheel Flowmeters
- Turbine Flowmeters
- Battery-Powered Flowmeters
ABB
ABB’s flowmeters and differential pressure transmitters offer superior measurement precision across various industries. ABB offers high accuracy, adjustable settings via thru-glass optical button programming, and high durability performance in difficult applications. With a range of technologies to offer, each series can be configured meet your specific application requirements. For More
- Electromagnetic (Magnetic) Flowmeters
- Vortex / Swirl Flowmeters
- Coriolis Mass Flowmeters
- Differential Pressure Transmitters
- Thermal Mass Flowmeters
Fluid Components Intl.
FCI flow switches are electronic flow switches that utilize thermal dispersion flow measurement technology. This technology provides highly accurate and repeatable flow rate measurements, ensuring highly reliable and repeatable setpoint detection. Depending on the model, they are applied in liquids, including water, hydrocarbons, and oils, as well as in air or gas flows. Additionally, FCI’s gas flowmeters are specifically designed for precision and durability, offering exceptional performance in measuring gas flow rates, which is crucial for applications involving air or industrial gases. For More
- Thermal Dispersion Flow, Level, & Temperature Switches
- Thermal Dispersion Mass Flow Meters (gases)
Turbines, Inc
Turbines, Inc. offers industry leading liquid flow measurement turbines that come in a comprehensive variety of offerings, accuracy and impressive temperature operating ranges. Both our in-line meters (installed within a length of pipe) and wafer-style turbine meters (typically inserted between two flanges) are precision machined stainless steel and also available in a wide variety of materials of construction. For More
- Liquid Turbine Meters
- Gas Turbine Meters
QPS – Quality Products & Sales
Quality Products & Sales has assembled a Total Quality minded staff, joined together with a machining and welding facility capable of producing quality products at a moment’s notice. Backed with over thirty four years of experience in designing and manufacturing of flow metering systems, Q.P.S. is quickly becoming a leader in the industry. For More
- Flow Element & Restriction Orifice Plates
- Flange Unions
- Venturi Tube Flow Elements
- Flow Nozzles
Krohne Measurement
Our product lineup includes flowmeters, flow controllers, and a variety of flow accessories. To support these technologies, we also provide maintenance and service tools, flow computers, and other essential accessories tailored for comprehensive flow measurement needs. For More
- Electromagnetic Flow Meters
- Coriolis Flow meters
- Flanged/In-Line Ultrasonic
- Variable Area Flow Meters
ICON Process Controls (Corrosion Free Solutions)
TK Paddle Wheel Flow Meter Sensors are recognized as some of the industry’s most accurate and reliable instruments. They eliminate the need for K-factor programming, ensuring ease of use right out of the box. The true union design simplifies installation and maintenance, while the single part number system streamlines ordering and inventory processes. For More
- Paddlewheel Flowmeters
- Turbine Flowmeters
- Ultrasonic Flowmeters
- Mechanical Flow Switches
Instruments for
Your Industry
Oil & Gas Flow Instrumentation
Precise control is crucial for maximizing
output and minimizing waste.
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Coriolis Flow Meters (Krohne Measurement)
Krohne Measurement: Deliver mass flow, density, and temperature measurement, crucial for custody transfer and accurate fluid handling
Gas Flow Measurement (Fluid Components International – FCI)
Fluid Components International – FCI: With no moving parts and minimal invasiveness, thermal flow meters provide a highly repeatable, accurate, low-cost, and easy-to-install solution for air and gas flow measurements.
Gas Turbine Meters (Turbines Inc.)
Turbines Inc: Ideal for high-pressure gas flows, offering accuracy and reliability under harsh conditions.
Liquid Turbine Meters (Turbines Inc.)
Turbines Inc: Provide precise flow measurement essential for liquid hydrocarbons.
Krohne Measurement: Deliver mass flow, density, and temperature measurement, crucial for custody transfer and accurate fluid handling
Fluid Components International – FCI: With no moving parts and minimal invasiveness, thermal flow meters provide a highly repeatable, accurate, low-cost, and easy-to-install solution for air and gas flow measurements.
Turbines Inc: Ideal for high-pressure gas flows, offering accuracy and reliability under harsh conditions.
Turbines Inc: Provide precise flow measurement essential for liquid hydrocarbons.
Food & Beverage Flow Instrumentation
Ensure consistent product quality and operational efficiency.
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Flow Switches (Fluid Components International – FCI)
Fluid Components International – FCI: Utilize advanced thermal dispersion technology to monitor and control flow precisely, ensuring consistent production parameters and quality in beverage and food processing.
Gas Flowmeters (Fluid Components International – FCI)
Fluid Components International – FCI: Provide accurate and reliable measurements of gas flows, essential for processes such as carbonation and fermentation within the food and beverage industry.
Sanitary Pressure Transmitters (Klay Instruments)
Klay Instruments: Contactless measurement that maintains the integrity of fluids and slurries.
Electromagnetic Flow Meters (Krohne Measurement)
Krohne Measurement: Our solenoid valves are crucial for precise water flow and chemical treatment applications. They offer rapid actuation for immediate system adjustments.
Coriolis Flow Meters (Krohne Measurement)
Krohne Measurement: Achieve highly accurate mass flow and density measurement for precise ingredient handling.
Fluid Components International – FCI: Utilize advanced thermal dispersion technology to monitor and control flow precisely, ensuring consistent production parameters and quality in beverage and food processing.
Fluid Components International – FCI: Provide accurate and reliable measurements of gas flows, essential for processes such as carbonation and fermentation within the food and beverage industry.
Klay Instruments: Contactless measurement that maintains the integrity of fluids and slurries.
Krohne Measurement: Our solenoid valves are crucial for precise water flow and chemical treatment applications. They offer rapid actuation for immediate system adjustments.
Krohne Measurement: Achieve highly accurate mass flow and density measurement for precise ingredient handling.
Water & Wastewater Flow Instrumentation
Control the flow with our range of flowmeters. Automate fluid control for your facility.
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Electromagnetic Flowmeters (Seametrics)
Seametrics: Ideal for wastewater applications, offering accuracy and low maintenance.
Thermal Dispersion Mass Flow Meters (Fluid Components)
Fluid Components: Perfect for measuring gas flow rates in aeration processes.
Clamp-On Ultrasonic Flowmeters (Pulsar Measurement)
Pulsar Measurement: Measure flow with this non-invasive technology that minimizes system downtime.
Solenoid Valves (G.C. Valves)
G.C. Valves: Our solenoid valves are crucial for precise water flow and chemical treatment applications. They offer rapid actuation for immediate system adjustments.
Seametrics: Ideal for wastewater applications, offering accuracy and low maintenance.
Fluid Components: Perfect for measuring gas flow rates in aeration processes.
Pulsar Measurement: Measure flow with this non-invasive technology that minimizes system downtime.
G.C. Valves: Our solenoid valves are crucial for precise water flow and chemical treatment applications. They offer rapid actuation for immediate system adjustments.
Chemical Processing Flow Instrumentation
Measure flow accurately to ensure the quality and consistency of chemical products.
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Coriolis Flow Meters (Krohne Measurement)
Krohne Measurement: Offer precise mass flow, density, and temperature measurement simultaneously, ideal for handling diverse chemical processes.
Venturi Tube Flow Elements (QPS – Quality Products & Sales)
QPS – Quality Products & Sales: Known for their reliability in high-pressure applications and minimal pressure loss, suitable for various chemical applications.
Clamp-On Flowmeters (Pulsar Measurement)
Pulsar Measurement: Provide non-intrusive flow measurement that maintains the integrity of corrosive chemicals
Krohne Measurement: Offer precise mass flow, density, and temperature measurement simultaneously, ideal for handling diverse chemical processes.
QPS – Quality Products & Sales: Known for their reliability in high-pressure applications and minimal pressure loss, suitable for various chemical applications.
Pulsar Measurement: Provide non-intrusive flow measurement that maintains the integrity of corrosive chemicals
Get in Touch
Don’t settle for unreliable flow instrumentation. Let M.L. Johnson take something off your plate by advising on the best solutions for your application. Our goal is to save you time, money, and the hassle of dealing with tempermental instrumentation. Contact M.L. Johnson today to find flow solutions guaranteed to improve your processes.